Cam grind specs?

lyletrudell · Post by **lyletrudell** » Sat Jul 31, 2010 12:10 pm

Cheyenne, cam regrind cost depends on number of lobes and setup cost.
But some vintage cams need to be welded and reground, that can cost $1,000+.
I would say $125-$200 with your good core, is about the range.
I will get a price from Cam Techniques for a Honda cam next week.
http://www.camtechniques.com/
Oh, I have a Haas machining center, yes it's fun to play in the shop.
http://tru-craft.com/
Lyle

--- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> Wat does it cost to have a custom grind done??
> ----- Original Message -----
> From: lyletrudell
> To:
2cylinderhondas@yahoogroups.com
Sent: Friday, July 30, 2010 11:41 AM
> Subject: [2cylinderhondas] Re: Cam grind specs?
> Thanks Jpro, I couldn't find it in the coupe or haines manual.
> Your race background will be helpful in designing a good hot street cam.
> Not sure if the Hawaiian cam is our best cam design or not.
> It sounds like it moves the power band up in rpm.
> Not sure what it does for low end torque.
> I have a great cam grind shop just south of me. He has ground cams for me in the past. Dave is the owner, nice guy and quality work.
http://www.camtechniques.com/ I emailed him about the Honda cam yesterday.
> I will look at my notes on cam design and see what I can find.
> Cam design is a balancing game between high rpm power and drivability. I want my coupe to be a little better than stock.
> Lyle
> --- In
2cylinderhondas@yahoogroups.com
, "jpro8071" wrote:
> > Page 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following for the 600:
> > Valve timing (at 1mm, 0.039in. cam lift)
> > 1969 1970
> > Inlet valve open btdc 0 5
> > Inlet valve close abdc 40 20
> > Intake Duration (calc) 220 205
> > Exhaust valve open bbdc 40 40
> > Exhaust valve close atdc 0 10
> > Exhaust Duration (calc) 220 230
> > Overlap (calc) 0 15
> > ("calc" entries made using
http://www.rbracing-rsr.com/camshaft.html )
> > I don't think there is any difference in lift, since page 4-25 step 4 does not differentiate for the two cams for lobe height. Note that all of this is from the manual - I haven't checked the numbers myself.
> > Besides differences in duration, pay attention to overlap . . .
> > I've got a spreadsheet somewhere of other race cam specs, will try to dig it up.
> > --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > > Bill, I don't have a sedan shop manual.
> > > Can you scan it?
> > > Or send me a copy with the window seals I ordered from you.
> > > Are these numbers like a cam grind sheet?
> > > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > I want to buy a hotter cam or get one of my cams ground and then degree the cam.
> > > Thanks
> > > Lyle
> > > --- In
2cylinderhondas@yahoogroups.com
, wrote:
> > > > Hi Lyle;
> > > > Yes, it is in the Sedan shop manual. First section.
> > > > Bill
> > > > -----Original Message-----
> > > > From:
2cylinderhondas@yahoogroups.com

> > > > [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of lyletrudell
> > > > Sent: Wednesday, July 28, 2010 1:38 PM
> > > > To:
2cylinderhondas@yahoogroups.com

> > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > Does anyone know where I can find the cam grind specs for the stock and Hawaiian cam?
> > > > I want to build one stock and one slightly hotter engine.
> > > > This would also be good info for degreeing the cam.
> > > > Thanks
> > > > Lyle
> > > > �l

CHEYENNE FLETCHER · Post by **CHEYENNE FLETCHER** » Sat Jul 31, 2010 6:19 pm

Thanks. I would like a hotter cam for my next project. Wouldn't that require welding it up to change the duration??

> ----- Original Message -----
> From:
> lyletrudell
> To:
> 2cylinderhondas@yahoogroups.com
> Sent:
> Saturday, July 31, 2010 12:09
> PM
> Subject:
> [2cylinderhondas] Re: Cam grind
> specs?
> Cheyenne, cam regrind cost depends on number of lobes and setup > cost.
> But some vintage cams need to be welded and reground, that can cost > $1,000+.
> I would say $125-$200 with your good core, is about the
> range.
> I will get a price from Cam Techniques for a Honda cam next > week.
> http://www.camtechniques.com/
> Oh,
> I have a Haas machining center, yes it's fun to play in the shop.
> http://tru-craft.com/
> Lyle
> --- In
> 2cylinderhondas@yahoogroups.com
> ,
> "CHEYENNE FLETCHER" wrote:
> > Wat does
> it cost to have a custom grind done??
> > ----- Original Message -----
> > From: lyletrudell
> > To:
> 2cylinderhondas@yahoogroups.com
> 2cylinderhondas@yahoogroups.com
> > Sent: Friday, July 30, 2010 11:41 AM
> > Subject:
> [2cylinderhondas] Re: Cam grind specs?
> Thanks Jpro, I couldn't find it in the coupe or haines manual.
> > Your
> race background will be helpful in designing a good hot street cam.
> Not sure if the Hawaiian cam is our best cam design or not.
> > It sounds
> like it moves the power band up in rpm.
> > Not sure what it does for low
> end torque.
> > I have a great cam grind shop just south of me.
> He has ground cams for me in the past. Dave is the owner, nice guy and quality > work.
> http://www.camtechniques.com/
> http://www.camtechniques.com/
> I emailed him about the Honda cam yesterday.
> > I will look at
> my notes on cam design and see what I can find.
> > Cam design is a
> balancing game between high rpm power and drivability. I want my coupe to be a > little better than stock.
> > Lyle
> > --- In
> 2cylinderhondas@yahoogroups.com
> ,
> "jpro8071" wrote:
> > > Page 4-1 of the
> blue manual "Honda 360/400/600 Sedan & Van" shows the following for the > 600:
> > > Valve timing (at 1mm, 0.039in. cam
> lift)
> > > 1969 1970
> > > Inlet valve open btdc 0 5
> > Inlet valve close abdc 40 20
> > > Intake Duration (calc) 220
> 205
> > > Exhaust valve open bbdc 40 40
> > > Exhaust valve
> close atdc 0 10
> > > Exhaust Duration (calc) 220 230
> Overlap (calc) 0 15
> > > ("calc" entries made using
> http://www.rbracing-rsr.com/camshaft.html
> http://www.rbracing-rsr.com/camshaft.html
> )
> > > I don't think there is any difference in lift,
> since page 4-25 step 4 does not differentiate for the two cams for lobe > height. Note that all of this is from the manual - I haven't checked the > numbers myself.
> > > Besides differences in duration,
> pay attention to overlap . . .
> > > I've got a
> spreadsheet somewhere of other race cam specs, will try to dig it up.
> > > --- In
> 2cylinderhondas@yahoogroups.com
> ,
> "lyletrudell" wrote:
> Bill, I don't have a sedan shop manual.
> > > > Can you scan
> it?
> > > > Or send me a copy with the window seals I ordered from > you.
> > > > Are these numbers like a cam grind sheet?
> > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > I want to buy a hotter cam or get one of my cams ground and then > degree the cam.
> > > > Thanks
> > > > Lyle
> > > > --- In
> 2cylinderhondas@yahoogroups.com
> ,
> wrote:
> > > > > Hi
> Lyle;
> > > > > Yes, it is in the Sedan shop manual. First
> section.
> > > > > Bill
> > -----Original Message-----
> > > > > From:
> 2cylinderhondas@yahoogroups.com
>
> > > > [mailto:
> 2cylinderhondas@yahoogroups.com
> ]On
> Behalf Of lyletrudell
> > > > > Sent: Wednesday, July 28, 2010
> 1:38 PM
> > > > > To:
> 2cylinderhondas@yahoogroups.com
>
> > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > Does anyone know where I can find the cam grind specs > for the stock and Hawaiian cam?
> > > > > I want to build one
> stock and one slightly hotter engine.
> > > > > This would also
> be good info for degreeing the cam.
> > > > > Thanks
> > > Lyle
> > > > > �l

twincarb600 · Post by **twincarb600** » Sat Jul 31, 2010 6:37 pm

Try calling Isky Racing Cams in Gardena CA. They use to regrind cams for the 600's back in the day. They would grind down your cam and send lash caps for the valves stems to makeup for what was taken out. I can't remember if they had different grinds or just one. I did this with some of my cams back in the early 80's.

--- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> Thanks. I would like a hotter cam for my next project. Wouldn't that require welding it up to change the duration??
> ----- Original Message -----
> From: lyletrudell
> To:
2cylinderhondas@yahoogroups.com
Sent: Saturday, July 31, 2010 12:09 PM
> Subject: [2cylinderhondas] Re: Cam grind specs?
> Cheyenne, cam regrind cost depends on number of lobes and setup cost.
> But some vintage cams need to be welded and reground, that can cost $1,000+.
> I would say $125-$200 with your good core, is about the range.
> I will get a price from Cam Techniques for a Honda cam next week.
http://www.camtechniques.com/ Oh, I have a Haas machining center, yes it's fun to play in the shop.
http://tru-craft.com/ Lyle
> --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > Wat does it cost to have a custom grind done??
> > ----- Original Message -----
> > From: lyletrudell
> > To:
2cylinderhondas@yahoogroups.com
>
> > Sent: Friday, July 30, 2010 11:41 AM
> > Subject: [2cylinderhondas] Re: Cam grind specs?
> > Thanks Jpro, I couldn't find it in the coupe or haines manual.
> > Your race background will be helpful in designing a good hot street cam.
> > Not sure if the Hawaiian cam is our best cam design or not.
> > It sounds like it moves the power band up in rpm.
> > Not sure what it does for low end torque.
> > I have a great cam grind shop just south of me. He has ground cams for me in the past. Dave is the owner, nice guy and quality work.
http://www.camtechniques.com/ > I emailed him about the Honda cam yesterday.
> > I will look at my notes on cam design and see what I can find.
> > Cam design is a balancing game between high rpm power and drivability. I want my coupe to be a little better than stock.
> > Lyle
> > --- In
2cylinderhondas@yahoogroups.com
, "jpro8071" wrote:
> > > Page 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following for the 600:
> > > Valve timing (at 1mm, 0.039in. cam lift)
> > > 1969 1970
> > > Inlet valve open btdc 0 5
> > > Inlet valve close abdc 40 20
> > > Intake Duration (calc) 220 205
> > > Exhaust valve open bbdc 40 40
> > > Exhaust valve close atdc 0 10
> > > Exhaust Duration (calc) 220 230
> > > Overlap (calc) 0 15
> > > ("calc" entries made using
http://www.rbracing-rsr.com/camshaft.html> )
> > > I don't think there is any difference in lift, since page 4-25 step 4 does not differentiate for the two cams for lobe height. Note that all of this is from the manual - I haven't checked the numbers myself.
> > > Besides differences in duration, pay attention to overlap . . .
> > > I've got a spreadsheet somewhere of other race cam specs, will try to dig it up.
> > > --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > > > Bill, I don't have a sedan shop manual.
> > > > Can you scan it?
> > > > Or send me a copy with the window seals I ordered from you.
> > > > Are these numbers like a cam grind sheet?
> > > > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > > I want to buy a hotter cam or get one of my cams ground and then degree the cam.
> > > > Thanks
> > > > Lyle
> > > > --- In
2cylinderhondas@yahoogroups.com
, wrote:
> > > > > Hi Lyle;
> > > > > Yes, it is in the Sedan shop manual. First section.
> > > > > Bill
> > > > > -----Original Message-----
> > > > > From:
2cylinderhondas@yahoogroups.com

> > > > > [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of lyletrudell
> > > > > Sent: Wednesday, July 28, 2010 1:38 PM
> > > > > To:
2cylinderhondas@yahoogroups.com

> > > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > Does anyone know where I can find the cam grind specs for the stock and Hawaiian cam?
> > > > > I want to build one stock and one slightly hotter engine.
> > > > > This would also be good info for degreeing the cam.
> > > > > Thanks
> > > > > Lyle
> > > > > �l

John · Post by **John** » Sun Aug 01, 2010 1:35 pm

Hi, I've reground many cams in HD's, brit twins and my 1970 AN600. They will grind from the base of the cam, not the lobe, then blend the ramps to the new base circle. Lash caps or longer stemmed valves will be required to make up for the limited adjustment of our rocker arms. I contacted Engle Camshaft since they once made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
Here are the specs:
DF1-3
Duration: IN- 286 degrees, EX- 280 degrees
Lift at Cam: IN- 338 degrees, EX- 338 degrees
Lobe Center: 108 degrees
Hope this helps,
John
XXX-XXX-XXXX

--- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> Thanks. I would like a hotter cam for my next project. Wouldn't that require welding it up to change the duration??
> ----- Original Message -----
> From: lyletrudell
> To:
2cylinderhondas@yahoogroups.com
Sent: Saturday, July 31, 2010 12:09 PM
> Subject: [2cylinderhondas] Re: Cam grind specs?
> Cheyenne, cam regrind cost depends on number of lobes and setup cost.
> But some vintage cams need to be welded and reground, that can cost $1,000+.
> I would say $125-$200 with your good core, is about the range.
> I will get a price from Cam Techniques for a Honda cam next week.
http://www.camtechniques.com/ Oh, I have a Haas machining center, yes it's fun to play in the shop.
http://tru-craft.com/ Lyle
> --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > Wat does it cost to have a custom grind done??
> > ----- Original Message -----
> > From: lyletrudell
> > To:
2cylinderhondas@yahoogroups.com
>
> > Sent: Friday, July 30, 2010 11:41 AM
> > Subject: [2cylinderhondas] Re: Cam grind specs?
> > Thanks Jpro, I couldn't find it in the coupe or haines manual.
> > Your race background will be helpful in designing a good hot street cam.
> > Not sure if the Hawaiian cam is our best cam design or not.
> > It sounds like it moves the power band up in rpm.
> > Not sure what it does for low end torque.
> > I have a great cam grind shop just south of me. He has ground cams for me in the past. Dave is the owner, nice guy and quality work.
http://www.camtechniques.com/ > I emailed him about the Honda cam yesterday.
> > I will look at my notes on cam design and see what I can find.
> > Cam design is a balancing game between high rpm power and drivability. I want my coupe to be a little better than stock.
> > Lyle
> > --- In
2cylinderhondas@yahoogroups.com
, "jpro8071" wrote:
> > > Page 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following for the 600:
> > > Valve timing (at 1mm, 0.039in. cam lift)
> > > 1969 1970
> > > Inlet valve open btdc 0 5
> > > Inlet valve close abdc 40 20
> > > Intake Duration (calc) 220 205
> > > Exhaust valve open bbdc 40 40
> > > Exhaust valve close atdc 0 10
> > > Exhaust Duration (calc) 220 230
> > > Overlap (calc) 0 15
> > > ("calc" entries made using
http://www.rbracing-rsr.com/camshaft.html> )
> > > I don't think there is any difference in lift, since page 4-25 step 4 does not differentiate for the two cams for lobe height. Note that all of this is from the manual - I haven't checked the numbers myself.
> > > Besides differences in duration, pay attention to overlap . . .
> > > I've got a spreadsheet somewhere of other race cam specs, will try to dig it up.
> > > --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > > > Bill, I don't have a sedan shop manual.
> > > > Can you scan it?
> > > > Or send me a copy with the window seals I ordered from you.
> > > > Are these numbers like a cam grind sheet?
> > > > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > > I want to buy a hotter cam or get one of my cams ground and then degree the cam.
> > > > Thanks
> > > > Lyle
> > > > --- In
2cylinderhondas@yahoogroups.com
, wrote:
> > > > > Hi Lyle;
> > > > > Yes, it is in the Sedan shop manual. First section.
> > > > > Bill
> > > > > -----Original Message-----
> > > > > From:
2cylinderhondas@yahoogroups.com

> > > > > [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of lyletrudell
> > > > > Sent: Wednesday, July 28, 2010 1:38 PM
> > > > > To:
2cylinderhondas@yahoogroups.com

> > > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > Does anyone know where I can find the cam grind specs for the stock and Hawaiian cam?
> > > > > I want to build one stock and one slightly hotter engine.
> > > > > This would also be good info for degreeing the cam.
> > > > > Thanks
> > > > > Lyle
> > > > > �l

John · Post by **John** » Sun Aug 01, 2010 1:45 pm

Oops, Lift at Cam should be in inches (not degrees).

--- In
2cylinderhondas@yahoogroups.com
, "John" wrote:
> Hi, I've reground many cams in HD's, brit twins and my 1970 AN600. They will grind from the base of the cam, not the lobe, then blend the ramps to the new base circle. Lash caps or longer stemmed valves will be required to make up for the limited adjustment of our rocker arms. I contacted Engle Camshaft since they once made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
> Here are the specs:
> DF1-3
> Duration: IN- 286 degrees, EX- 280 degrees
> Lift at Cam: IN- 338 degrees, EX- 338 degrees
> Lobe Center: 108 degrees
> Hope this helps,
> John
> XXX-XXX-XXXX
> --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > Thanks. I would like a hotter cam for my next project. Wouldn't that require welding it up to change the duration??
> > ----- Original Message -----
> > From: lyletrudell
> > To:
2cylinderhondas@yahoogroups.com
> Sent: Saturday, July 31, 2010 12:09 PM
> > Subject: [2cylinderhondas] Re: Cam grind specs?
> > Cheyenne, cam regrind cost depends on number of lobes and setup cost.
> > But some vintage cams need to be welded and reground, that can cost $1,000+.
> > I would say $125-$200 with your good core, is about the range.
> > I will get a price from Cam Techniques for a Honda cam next week.
http://www.camtechniques.com/ > Oh, I have a Haas machining center, yes it's fun to play in the shop.
http://tru-craft.com/ > Lyle
> > --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > > Wat does it cost to have a custom grind done??
> > > ----- Original Message -----
> > > From: lyletrudell
> > > To:
2cylinderhondas@yahoogroups.com
>
> > > Sent: Friday, July 30, 2010 11:41 AM
> > > Subject: [2cylinderhondas] Re: Cam grind specs?
> > > Thanks Jpro, I couldn't find it in the coupe or haines manual.
> > > Your race background will be helpful in designing a good hot street cam.
> > > Not sure if the Hawaiian cam is our best cam design or not.
> > > It sounds like it moves the power band up in rpm.
> > > Not sure what it does for low end torque.
> > > I have a great cam grind shop just south of me. He has ground cams for me in the past. Dave is the owner, nice guy and quality work.
http://www.camtechniques.com/ > > I emailed him about the Honda cam yesterday.
> > > I will look at my notes on cam design and see what I can find.
> > > Cam design is a balancing game between high rpm power and drivability. I want my coupe to be a little better than stock.
> > > Lyle
> > > --- In
2cylinderhondas@yahoogroups.com
, "jpro8071" wrote:
> > > > Page 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following for the 600:
> > > > Valve timing (at 1mm, 0.039in. cam lift)
> > > > 1969 1970
> > > > Inlet valve open btdc 0 5
> > > > Inlet valve close abdc 40 20
> > > > Intake Duration (calc) 220 205
> > > > Exhaust valve open bbdc 40 40
> > > > Exhaust valve close atdc 0 10
> > > > Exhaust Duration (calc) 220 230
> > > > Overlap (calc) 0 15
> > > > ("calc" entries made using
http://www.rbracing-rsr.com/camshaft.html> )
> > > > I don't think there is any difference in lift, since page 4-25 step 4 does not differentiate for the two cams for lobe height. Note that all of this is from the manual - I haven't checked the numbers myself.
> > > > Besides differences in duration, pay attention to overlap . . .
> > > > I've got a spreadsheet somewhere of other race cam specs, will try to dig it up.
> > > > --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > > > > Bill, I don't have a sedan shop manual.
> > > > > Can you scan it?
> > > > > Or send me a copy with the window seals I ordered from you.
> > > > > Are these numbers like a cam grind sheet?
> > > > > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > > > I want to buy a hotter cam or get one of my cams ground and then degree the cam.
> > > > > Thanks
> > > > > Lyle
> > > > > --- In
2cylinderhondas@yahoogroups.com
, wrote:
> > > > > > Hi Lyle;
> > > > > > Yes, it is in the Sedan shop manual. First section.
> > > > > > Bill
> > > > > > -----Original Message-----
> > > > > > From:
2cylinderhondas@yahoogroups.com

> > > > > > [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of lyletrudell
> > > > > > Sent: Wednesday, July 28, 2010 1:38 PM
> > > > > > To:
2cylinderhondas@yahoogroups.com

> > > > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > > Does anyone know where I can find the cam grind specs for the stock and Hawaiian cam?
> > > > > > I want to build one stock and one slightly hotter engine.
> > > > > > This would also be good info for degreeing the cam.
> > > > > > Thanks
> > > > > > Lyle
> > > > > > �l

John · Post by **John** » Sun Aug 01, 2010 1:45 pm

Oops, the Lift at Cam is in inches (not degrees).

--- In
2cylinderhondas@yahoogroups.com
, "John" wrote:
> Hi, I've reground many cams in HD's, brit twins and my 1970 AN600. They will grind from the base of the cam, not the lobe, then blend the ramps to the new base circle. Lash caps or longer stemmed valves will be required to make up for the limited adjustment of our rocker arms. I contacted Engle Camshaft since they once made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
> Here are the specs:
> DF1-3
> Duration: IN- 286 degrees, EX- 280 degrees
> Lift at Cam: IN- 338 degrees, EX- 338 degrees
> Lobe Center: 108 degrees
> Hope this helps,
> John
> XXX-XXX-XXXX
> --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > Thanks. I would like a hotter cam for my next project. Wouldn't that require welding it up to change the duration??
> > ----- Original Message -----
> > From: lyletrudell
> > To:
2cylinderhondas@yahoogroups.com
> Sent: Saturday, July 31, 2010 12:09 PM
> > Subject: [2cylinderhondas] Re: Cam grind specs?
> > Cheyenne, cam regrind cost depends on number of lobes and setup cost.
> > But some vintage cams need to be welded and reground, that can cost $1,000+.
> > I would say $125-$200 with your good core, is about the range.
> > I will get a price from Cam Techniques for a Honda cam next week.
http://www.camtechniques.com/ > Oh, I have a Haas machining center, yes it's fun to play in the shop.
http://tru-craft.com/ > Lyle
> > --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > > Wat does it cost to have a custom grind done??
> > > ----- Original Message -----
> > > From: lyletrudell
> > > To:
2cylinderhondas@yahoogroups.com
>
> > > Sent: Friday, July 30, 2010 11:41 AM
> > > Subject: [2cylinderhondas] Re: Cam grind specs?
> > > Thanks Jpro, I couldn't find it in the coupe or haines manual.
> > > Your race background will be helpful in designing a good hot street cam.
> > > Not sure if the Hawaiian cam is our best cam design or not.
> > > It sounds like it moves the power band up in rpm.
> > > Not sure what it does for low end torque.
> > > I have a great cam grind shop just south of me. He has ground cams for me in the past. Dave is the owner, nice guy and quality work.
http://www.camtechniques.com/ > > I emailed him about the Honda cam yesterday.
> > > I will look at my notes on cam design and see what I can find.
> > > Cam design is a balancing game between high rpm power and drivability. I want my coupe to be a little better than stock.
> > > Lyle
> > > --- In
2cylinderhondas@yahoogroups.com
, "jpro8071" wrote:
> > > > Page 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following for the 600:
> > > > Valve timing (at 1mm, 0.039in. cam lift)
> > > > 1969 1970
> > > > Inlet valve open btdc 0 5
> > > > Inlet valve close abdc 40 20
> > > > Intake Duration (calc) 220 205
> > > > Exhaust valve open bbdc 40 40
> > > > Exhaust valve close atdc 0 10
> > > > Exhaust Duration (calc) 220 230
> > > > Overlap (calc) 0 15
> > > > ("calc" entries made using
http://www.rbracing-rsr.com/camshaft.html> )
> > > > I don't think there is any difference in lift, since page 4-25 step 4 does not differentiate for the two cams for lobe height. Note that all of this is from the manual - I haven't checked the numbers myself.
> > > > Besides differences in duration, pay attention to overlap . . .
> > > > I've got a spreadsheet somewhere of other race cam specs, will try to dig it up.
> > > > --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > > > > Bill, I don't have a sedan shop manual.
> > > > > Can you scan it?
> > > > > Or send me a copy with the window seals I ordered from you.
> > > > > Are these numbers like a cam grind sheet?
> > > > > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > > > I want to buy a hotter cam or get one of my cams ground and then degree the cam.
> > > > > Thanks
> > > > > Lyle
> > > > > --- In
2cylinderhondas@yahoogroups.com
, wrote:
> > > > > > Hi Lyle;
> > > > > > Yes, it is in the Sedan shop manual. First section.
> > > > > > Bill
> > > > > > -----Original Message-----
> > > > > > From:
2cylinderhondas@yahoogroups.com

> > > > > > [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of lyletrudell
> > > > > > Sent: Wednesday, July 28, 2010 1:38 PM
> > > > > > To:
2cylinderhondas@yahoogroups.com

> > > > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > > Does anyone know where I can find the cam grind specs for the stock and Hawaiian cam?
> > > > > > I want to build one stock and one slightly hotter engine.
> > > > > > This would also be good info for degreeing the cam.
> > > > > > Thanks
> > > > > > Lyle
> > > > > > �l

CHEYENNE FLETCHER · Post by **CHEYENNE FLETCHER** » Sun Aug 01, 2010 2:16 pm

Wow that's cool I wondered how it worked. I thought they had to weld up the cam and re grind it. Thanks.

> ----- Original Message -----
> From:
> twincarb600
> To:
> 2cylinderhondas@yahoogroups.com
> Sent:
> Saturday, July 31, 2010 6:36
> PM
> Subject:
> [2cylinderhondas] Re: Cam grind
> specs?
> Try calling Isky Racing Cams in Gardena CA. They use to regrind cams for > the 600's back in the day. They would grind down your cam and send lash caps > for the valves stems to makeup for what was taken out. I can't remember if > they had different grinds or just one. I did this with some of my cams back in > the early 80's.
> --- In
> 2cylinderhondas@yahoogroups.com
> ,
> "CHEYENNE FLETCHER" wrote:
> > Thanks.
> I would like a hotter cam for my next project. Wouldn't that require welding > it up to change the duration??
> > ----- Original Message -----
> From: lyletrudell
> > To:
> 2cylinderhondas@yahoogroups.com
> 2cylinderhondas@yahoogroups.com
> > Sent: Saturday, July 31, 2010 12:09 PM
> > Subject:
> [2cylinderhondas] Re: Cam grind specs?
> Cheyenne, cam regrind cost depends on number of lobes and setup cost.
> But some vintage cams need to be welded and reground, that can cost > $1,000+.
> > I would say $125-$200 with your good core, is about the
> range.
> > I will get a price from Cam Techniques for a Honda cam next > week.
> http://www.camtechniques.com/
> http://www.camtechniques.com/
> > Oh, I have a Haas machining center, yes it's fun to play in the > shop.
> http://tru-craft.com/
> http://tru-craft.com/
> Lyle
> > --- In
> 2cylinderhondas@yahoogroups.com
> ,
> "CHEYENNE FLETCHER" wrote:
> Wat does it cost to have a custom grind done??
> > > ----- Original
> Message -----
> > > From: lyletrudell
> > > To:
> 2cylinderhondas@yahoogroups.com
> 2cylinderhondas@yahoogroups.com
> >
> > > Sent: Friday, July 30, 2010 11:41 AM
> > > Subject:
> [2cylinderhondas] Re: Cam grind specs?
> > > Thanks Jpro, I couldn't find it in the coupe or haines > manual.
> > > Your race background will be helpful in designing a good > hot street cam.
> > > Not sure if the Hawaiian cam is our best cam
> design or not.
> > > It sounds like it moves the power band up in
> rpm.
> > > Not sure what it does for low end torque.
> > > I have a great cam grind shop just south of me. He has ground > cams for me in the past. Dave is the owner, nice guy and quality work.
> http://www.camtechniques.com/
> http://www.camtechniques.com/
> > http://www.camtechniques.com/
> http://www.camtechniques.com/
> > I emailed him about the Honda cam yesterday.
> > > I
> will look at my notes on cam design and see what I can find.
> > > Cam
> design is a balancing game between high rpm power and drivability. I want my > coupe to be a little better than stock.
> > > Lyle
> > > --- In
> 2cylinderhondas@yahoogroups.com
> , > "jpro8071" wrote:
> > > > Page
> 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following > for the 600:
> > > > Valve timing (at 1mm,
> 0.039in. cam lift)
> > > > 1969 1970
> > > > Inlet valve
> open btdc 0 5
> > > > Inlet valve close abdc 40 20
> Intake Duration (calc) 220 205
> > > > Exhaust valve open bbdc 40
> 40
> > > > Exhaust valve close atdc 0 10
> > > > Exhaust
> Duration (calc) 220 230
> > > > Overlap (calc) 0 15
> > > > ("calc" entries made using
> http://www.rbracing-rsr.com/camshaft.html
> http://www.rbracing-rsr.com/camshaft.html
> > http://www.rbracing-rsr.com/camshaft.html
> http://www.rbracing-rsr.com/camshaft.html
> )
> > > > I don't think there is any difference
> in lift, since page 4-25 step 4 does not differentiate for the two cams for > lobe height. Note that all of this is from the manual - I haven't checked the > numbers myself.
> > > > Besides differences in
> duration, pay attention to overlap . . .
> I've got a spreadsheet somewhere of other race cam specs, will try to dig it > up.
> > > > --- In
> 2cylinderhondas@yahoogroups.com
> , > "lyletrudell" wrote:
> > > Bill, I don't have a sedan shop manual.
> > > > > Can
> you scan it?
> > > > > Or send me a copy with the window seals I
> ordered from you.
> > > > > Are these numbers like a cam grind
> sheet?
> > > > > Like Duration, lift, intake open 0 degree's BTDC
> at 1mm lift?
> > > > > I want to buy a hotter cam or get one of
> my cams ground and then degree the cam.
> > > > > Thanks
> > > > Lyle
> > > > > --- In
> 2cylinderhondas@yahoogroups.com
> , > wrote:
> > Hi Lyle;
> > > > > > Yes, it is in the Sedan shop manual.
> First section.
> > > > > > Bill
> > > > > > -----Original Message-----
> > From:
> 2cylinderhondas@yahoogroups.com
>
> > > > > [mailto:
> 2cylinderhondas@yahoogroups.com
> ]On > Behalf Of lyletrudell > > > > > > Sent: Wednesday, July 28, > 2010 1:38 PM > > > > > > To:
> 2cylinderhondas@yahoogroups.com
>
> > > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > > Does anyone know where I can find the
> cam grind specs for the stock and Hawaiian cam?
> > > > > > I
> want to build one stock and one slightly hotter engine.
> > This would also be good info for degreeing the cam.
> > > Thanks
> > > > > > Lyle
> > > > > > �l

lyletrudell · Post by **lyletrudell** » Sun Aug 01, 2010 2:36 pm

Hi John, you have some great mechanical background and a highly modified Honda sedan!
Do you have a website with pictures and info on your sedan?
We need to get everyone together and come up with spec's for a few cams.
*Stage-1 better than stock, but smooth idle. Hawaiian?
*Stage-2 medium with a slightly rough idle.
*Stage-3 Hot, max power at higher rpm's with a rough idle.
I would want a stage 1 or 2 for my coupe, still want to get 40mpg.
My other cars and bikes are fast.
I will have to measure my stock cams and see what the lift is at the cam.
Not sure how much we can increase the lift before we get too close to the stock piston? Rocker arm ratio?
John, do you know the degrees the valves open and close for this cam?
Thanks for the info.
Lyle

--- In
2cylinderhondas@yahoogroups.com
, "John" wrote:
> Oops, the Lift at Cam is in inches (not degrees).
> --- In
2cylinderhondas@yahoogroups.com
, "John" wrote:
> > Hi, I've reground many cams in HD's, brit twins and my 1970 AN600. They will grind from the base of the cam, not the lobe, then blend the ramps to the new base circle. Lash caps or longer stemmed valves will be required to make up for the limited adjustment of our rocker arms. I contacted Engle Camshaft since they once made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
> > Here are the specs:
> > DF1-3
> > Duration: IN- 286 degrees, EX- 280 degrees
> > Lift at Cam: IN- 338 degrees, EX- 338 degrees
> > Lobe Center: 108 degrees
> > Hope this helps,
> > John
> > XXX-XXX-XXXX
> > --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > > Thanks. I would like a hotter cam for my next project. Wouldn't that require welding it up to change the duration??
> > > ----- Original Message -----
> > > From: lyletrudell
> > > To:
2cylinderhondas@yahoogroups.com
> > Sent: Saturday, July 31, 2010 12:09 PM
> > > Subject: [2cylinderhondas] Re: Cam grind specs?
> > > Cheyenne, cam regrind cost depends on number of lobes and setup cost.
> > > But some vintage cams need to be welded and reground, that can cost $1,000+.
> > > I would say $125-$200 with your good core, is about the range.
> > > I will get a price from Cam Techniques for a Honda cam next week.
http://www.camtechniques.com/ > > Oh, I have a Haas machining center, yes it's fun to play in the shop.
http://tru-craft.com/ > > Lyle
> > > --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > > > Wat does it cost to have a custom grind done??
> > > > ----- Original Message -----
> > > > From: lyletrudell
> > > > To:
2cylinderhondas@yahoogroups.com
>
> > > > Sent: Friday, July 30, 2010 11:41 AM
> > > > Subject: [2cylinderhondas] Re: Cam grind specs?
> > > > Thanks Jpro, I couldn't find it in the coupe or haines manual.
> > > > Your race background will be helpful in designing a good hot street cam.
> > > > Not sure if the Hawaiian cam is our best cam design or not.
> > > > It sounds like it moves the power band up in rpm.
> > > > Not sure what it does for low end torque.
> > > > I have a great cam grind shop just south of me. He has ground cams for me in the past. Dave is the owner, nice guy and quality work.
http://www.camtechniques.com/ > > > I emailed him about the Honda cam yesterday.
> > > > I will look at my notes on cam design and see what I can find.
> > > > Cam design is a balancing game between high rpm power and drivability. I want my coupe to be a little better than stock.
> > > > Lyle
> > > > --- In
2cylinderhondas@yahoogroups.com
, "jpro8071" wrote:
> > > > > Page 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following for the 600:
> > > > > Valve timing (at 1mm, 0.039in. cam lift)
> > > > > 1969 1970
> > > > > Inlet valve open btdc 0 5
> > > > > Inlet valve close abdc 40 20
> > > > > Intake Duration (calc) 220 205
> > > > > Exhaust valve open bbdc 40 40
> > > > > Exhaust valve close atdc 0 10
> > > > > Exhaust Duration (calc) 220 230
> > > > > Overlap (calc) 0 15
> > > > > ("calc" entries made using
http://www.rbracing-rsr.com/camshaft.html> )
> > > > > I don't think there is any difference in lift, since page 4-25 step 4 does not differentiate for the two cams for lobe height. Note that all of this is from the manual - I haven't checked the numbers myself.
> > > > > Besides differences in duration, pay attention to overlap . . .
> > > > > I've got a spreadsheet somewhere of other race cam specs, will try to dig it up.
> > > > > --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > > > > > Bill, I don't have a sedan shop manual.
> > > > > > Can you scan it?
> > > > > > Or send me a copy with the window seals I ordered from you.
> > > > > > Are these numbers like a cam grind sheet?
> > > > > > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > > > > I want to buy a hotter cam or get one of my cams ground and then degree the cam.
> > > > > > Thanks
> > > > > > Lyle
> > > > > > --- In
2cylinderhondas@yahoogroups.com
, wrote:
> > > > > > > Hi Lyle;
> > > > > > > Yes, it is in the Sedan shop manual. First section.
> > > > > > > Bill
> > > > > > > -----Original Message-----
> > > > > > > From:
2cylinderhondas@yahoogroups.com

> > > > > > > [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of lyletrudell
> > > > > > > Sent: Wednesday, July 28, 2010 1:38 PM
> > > > > > > To:
2cylinderhondas@yahoogroups.com

> > > > > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > > > Does anyone know where I can find the cam grind specs for the stock and Hawaiian cam?
> > > > > > > I want to build one stock and one slightly hotter engine.
> > > > > > > This would also be good info for degreeing the cam.
> > > > > > > Thanks
> > > > > > > Lyle
> > > > > > > �l

lyletrudell · Post by **lyletrudell** » Mon Aug 02, 2010 1:30 pm

I measured my stock cams and the lift is (.318") at the cam.
Rocker arm ratio is (1:1) so we have (.318") at the valve also.
Anybody got a Hawaiian cam they measure to see what the lift is?
I know Mike O'Connor has performance cams, not sure what the grind is, he sells them for $175 which is a good price.
Lyle

--- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> Hi John, you have some great mechanical background and a highly modified Honda sedan!
> Do you have a website with pictures and info on your sedan?
> We need to get everyone together and come up with spec's for a few cams.
> *Stage-1 better than stock, but smooth idle. Hawaiian?
> *Stage-2 medium with a slightly rough idle.
> *Stage-3 Hot, max power at higher rpm's with a rough idle.
> I would want a stage 1 or 2 for my coupe, still want to get 40mpg.
> My other cars and bikes are fast.
> I will have to measure my stock cams and see what the lift is at the cam.
> Not sure how much we can increase the lift before we get too close to the stock piston? Rocker arm ratio?
> John, do you know the degrees the valves open and close for this cam?
> Thanks for the info.
> Lyle
> --- In
2cylinderhondas@yahoogroups.com
, "John" wrote:
> > Oops, the Lift at Cam is in inches (not degrees).
> > --- In
2cylinderhondas@yahoogroups.com
, "John" wrote:
> > > Hi, I've reground many cams in HD's, brit twins and my 1970 AN600. They will grind from the base of the cam, not the lobe, then blend the ramps to the new base circle. Lash caps or longer stemmed valves will be required to make up for the limited adjustment of our rocker arms. I contacted Engle Camshaft since they once made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
> > > Here are the specs:
> > > DF1-3
> > > Duration: IN- 286 degrees, EX- 280 degrees
> > > Lift at Cam: IN- 338 degrees, EX- 338 degrees
> > > Lobe Center: 108 degrees
> > > Hope this helps,
> > > John
> > > XXX-XXX-XXXX
> > > --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > > > Thanks. I would like a hotter cam for my next project. Wouldn't that require welding it up to change the duration??
> > > > ----- Original Message -----
> > > > From: lyletrudell
> > > > To:
2cylinderhondas@yahoogroups.com
> > > Sent: Saturday, July 31, 2010 12:09 PM
> > > > Subject: [2cylinderhondas] Re: Cam grind specs?
> > > > Cheyenne, cam regrind cost depends on number of lobes and setup cost.
> > > > But some vintage cams need to be welded and reground, that can cost $1,000+.
> > > > I would say $125-$200 with your good core, is about the range.
> > > > I will get a price from Cam Techniques for a Honda cam next week.
http://www.camtechniques.com/ > > > Oh, I have a Haas machining center, yes it's fun to play in the shop.
http://tru-craft.com/ > > > Lyle
> > > > --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > > > > Wat does it cost to have a custom grind done??
> > > > > ----- Original Message -----
> > > > > From: lyletrudell
> > > > > To:
2cylinderhondas@yahoogroups.com
>
> > > > > Sent: Friday, July 30, 2010 11:41 AM
> > > > > Subject: [2cylinderhondas] Re: Cam grind specs?
> > > > > Thanks Jpro, I couldn't find it in the coupe or haines manual.
> > > > > Your race background will be helpful in designing a good hot street cam.
> > > > > Not sure if the Hawaiian cam is our best cam design or not.
> > > > > It sounds like it moves the power band up in rpm.
> > > > > Not sure what it does for low end torque.
> > > > > I have a great cam grind shop just south of me. He has ground cams for me in the past. Dave is the owner, nice guy and quality work.
http://www.camtechniques.com/ > > > > I emailed him about the Honda cam yesterday.
> > > > > I will look at my notes on cam design and see what I can find.
> > > > > Cam design is a balancing game between high rpm power and drivability. I want my coupe to be a little better than stock.
> > > > > Lyle
> > > > > --- In
2cylinderhondas@yahoogroups.com
, "jpro8071" wrote:
> > > > > > Page 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following for the 600:
> > > > > > Valve timing (at 1mm, 0.039in. cam lift)
> > > > > > 1969 1970
> > > > > > Inlet valve open btdc 0 5
> > > > > > Inlet valve close abdc 40 20
> > > > > > Intake Duration (calc) 220 205
> > > > > > Exhaust valve open bbdc 40 40
> > > > > > Exhaust valve close atdc 0 10
> > > > > > Exhaust Duration (calc) 220 230
> > > > > > Overlap (calc) 0 15
> > > > > > ("calc" entries made using
http://www.rbracing-rsr.com/camshaft.html> )
> > > > > > I don't think there is any difference in lift, since page 4-25 step 4 does not differentiate for the two cams for lobe height. Note that all of this is from the manual - I haven't checked the numbers myself.
> > > > > > Besides differences in duration, pay attention to overlap . . .
> > > > > > I've got a spreadsheet somewhere of other race cam specs, will try to dig it up.
> > > > > > --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > > > > > > Bill, I don't have a sedan shop manual.
> > > > > > > Can you scan it?
> > > > > > > Or send me a copy with the window seals I ordered from you.
> > > > > > > Are these numbers like a cam grind sheet?
> > > > > > > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > > > > > I want to buy a hotter cam or get one of my cams ground and then degree the cam.
> > > > > > > Thanks
> > > > > > > Lyle
> > > > > > > --- In
2cylinderhondas@yahoogroups.com
, wrote:
> > > > > > > > Hi Lyle;
> > > > > > > > Yes, it is in the Sedan shop manual. First section.
> > > > > > > > Bill
> > > > > > > > -----Original Message-----
> > > > > > > > From:
2cylinderhondas@yahoogroups.com

> > > > > > > > [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of lyletrudell
> > > > > > > > Sent: Wednesday, July 28, 2010 1:38 PM
> > > > > > > > To:
2cylinderhondas@yahoogroups.com

> > > > > > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > > > > Does anyone know where I can find the cam grind specs for the stock and Hawaiian cam?
> > > > > > > > I want to build one stock and one slightly hotter engine.
> > > > > > > > This would also be good info for degreeing the cam.
> > > > > > > > Thanks
> > > > > > > > Lyle
> > > > > > > > �l

lyletrudell · Post by **lyletrudell** » Mon Aug 02, 2010 7:48 pm

Here is a good video of a cam grinder.
Note the grinding wheel is fixed. The cam is mounted between centers on each end, and in the middle with a steady rest if the cam is long. Note on the left end of the machine their is a master that has the cam profile on it, cam shops can have hundreds of these masters.
Then the table pivots as a roller (cam follower)follows the master, pivoting the table at the correct angle and shape. Everything is timed off the keyway or pin in the end of the cam shaft.
Amazing machine.
http://www.youtube.com/watch?v=mzscFugg ... re=related
Lyle

--- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> I measured my stock cams and the lift is (.318") at the cam.
> Rocker arm ratio is (1:1) so we have (.318") at the valve also.
> Anybody got a Hawaiian cam they measure to see what the lift is?
> I know Mike O'Connor has performance cams, not sure what the grind is, he sells them for $175 which is a good price.
> Lyle
> --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > Hi John, you have some great mechanical background and a highly modified Honda sedan!
> > Do you have a website with pictures and info on your sedan?
> > We need to get everyone together and come up with spec's for a few cams.
> > *Stage-1 better than stock, but smooth idle. Hawaiian?
> > *Stage-2 medium with a slightly rough idle.
> > *Stage-3 Hot, max power at higher rpm's with a rough idle.
> > I would want a stage 1 or 2 for my coupe, still want to get 40mpg.
> > My other cars and bikes are fast.
> > I will have to measure my stock cams and see what the lift is at the cam.
> > Not sure how much we can increase the lift before we get too close to the stock piston? Rocker arm ratio?
> > John, do you know the degrees the valves open and close for this cam?
> > Thanks for the info.
> > Lyle
> > --- In
2cylinderhondas@yahoogroups.com
, "John" wrote:
> > > Oops, the Lift at Cam is in inches (not degrees).
> > > --- In
2cylinderhondas@yahoogroups.com
, "John" wrote:
> > > > Hi, I've reground many cams in HD's, brit twins and my 1970 AN600. They will grind from the base of the cam, not the lobe, then blend the ramps to the new base circle. Lash caps or longer stemmed valves will be required to make up for the limited adjustment of our rocker arms. I contacted Engle Camshaft since they once made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
> > > > Here are the specs:
> > > > DF1-3
> > > > Duration: IN- 286 degrees, EX- 280 degrees
> > > > Lift at Cam: IN- 338 degrees, EX- 338 degrees
> > > > Lobe Center: 108 degrees
> > > > Hope this helps,
> > > > John
> > > > XXX-XXX-XXXX
> > > > --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > > > > Thanks. I would like a hotter cam for my next project. Wouldn't that require welding it up to change the duration??
> > > > > ----- Original Message -----
> > > > > From: lyletrudell
> > > > > To:
2cylinderhondas@yahoogroups.com
> > > > Sent: Saturday, July 31, 2010 12:09 PM
> > > > > Subject: [2cylinderhondas] Re: Cam grind specs?
> > > > > Cheyenne, cam regrind cost depends on number of lobes and setup cost.
> > > > > But some vintage cams need to be welded and reground, that can cost $1,000+.
> > > > > I would say $125-$200 with your good core, is about the range.
> > > > > I will get a price from Cam Techniques for a Honda cam next week.
http://www.camtechniques.com/ > > > > Oh, I have a Haas machining center, yes it's fun to play in the shop.
http://tru-craft.com/ > > > > Lyle
> > > > > --- In
2cylinderhondas@yahoogroups.com
, "CHEYENNE FLETCHER" wrote:
> > > > > > Wat does it cost to have a custom grind done??
> > > > > > ----- Original Message -----
> > > > > > From: lyletrudell
> > > > > > To:
2cylinderhondas@yahoogroups.com
>
> > > > > > Sent: Friday, July 30, 2010 11:41 AM
> > > > > > Subject: [2cylinderhondas] Re: Cam grind specs?
> > > > > > Thanks Jpro, I couldn't find it in the coupe or haines manual.
> > > > > > Your race background will be helpful in designing a good hot street cam.
> > > > > > Not sure if the Hawaiian cam is our best cam design or not.
> > > > > > It sounds like it moves the power band up in rpm.
> > > > > > Not sure what it does for low end torque.
> > > > > > I have a great cam grind shop just south of me. He has ground cams for me in the past. Dave is the owner, nice guy and quality work.
http://www.camtechniques.com/ > > > > > I emailed him about the Honda cam yesterday.
> > > > > > I will look at my notes on cam design and see what I can find.
> > > > > > Cam design is a balancing game between high rpm power and drivability. I want my coupe to be a little better than stock.
> > > > > > Lyle
> > > > > > --- In
2cylinderhondas@yahoogroups.com
, "jpro8071" wrote:
> > > > > > > Page 4-1 of the blue manual "Honda 360/400/600 Sedan & Van" shows the following for the 600:
> > > > > > > Valve timing (at 1mm, 0.039in. cam lift)
> > > > > > > 1969 1970
> > > > > > > Inlet valve open btdc 0 5
> > > > > > > Inlet valve close abdc 40 20
> > > > > > > Intake Duration (calc) 220 205
> > > > > > > Exhaust valve open bbdc 40 40
> > > > > > > Exhaust valve close atdc 0 10
> > > > > > > Exhaust Duration (calc) 220 230
> > > > > > > Overlap (calc) 0 15
> > > > > > > ("calc" entries made using
http://www.rbracing-rsr.com/camshaft.html> )
> > > > > > > I don't think there is any difference in lift, since page 4-25 step 4 does not differentiate for the two cams for lobe height. Note that all of this is from the manual - I haven't checked the numbers myself.
> > > > > > > Besides differences in duration, pay attention to overlap . . .
> > > > > > > I've got a spreadsheet somewhere of other race cam specs, will try to dig it up.
> > > > > > > --- In
2cylinderhondas@yahoogroups.com
, "lyletrudell" wrote:
> > > > > > > > Bill, I don't have a sedan shop manual.
> > > > > > > > Can you scan it?
> > > > > > > > Or send me a copy with the window seals I ordered from you.
> > > > > > > > Are these numbers like a cam grind sheet?
> > > > > > > > Like Duration, lift, intake open 0 degree's BTDC at 1mm lift?
> > > > > > > > I want to buy a hotter cam or get one of my cams ground and then degree the cam.
> > > > > > > > Thanks
> > > > > > > > Lyle
> > > > > > > > --- In
2cylinderhondas@yahoogroups.com
, wrote:
> > > > > > > > > Hi Lyle;
> > > > > > > > > Yes, it is in the Sedan shop manual. First section.
> > > > > > > > > Bill
> > > > > > > > > -----Original Message-----
> > > > > > > > > From:
2cylinderhondas@yahoogroups.com

> > > > > > > > > [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of lyletrudell
> > > > > > > > > Sent: Wednesday, July 28, 2010 1:38 PM
> > > > > > > > > To:
2cylinderhondas@yahoogroups.com

> > > > > > > > > Subject: [2cylinderhondas] Cam grind specs?
> > > > > > > > > Does anyone know where I can find the cam grind specs for the stock and Hawaiian cam?
> > > > > > > > > I want to build one stock and one slightly hotter engine.
> > > > > > > > > This would also be good info for degreeing the cam.
> > > > > > > > > Thanks
> > > > > > > > > Lyle
> > > > > > > > > �l