Re: [2cylinderhondas] Cam grind specs?

friend · Post by **friend** » Thu Jul 29, 2010 12:42 am

Hi Lyle;
Yes, it is in the Sedan shop manual. First section.
Bill

lyletrudell · Post by **lyletrudell** » Thu Jul 29, 2010 8:18 am

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
anzhonda600owners@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

friend · Post by **friend** » Fri Jul 30, 2010 1:23 am

Hi Lyle;
Go to Steve Michelsen's site, all the books are scanned in ready for down load.
Bill

> -----Original Message-----
> From:
> anzhonda600owners@yahoogroups.com
> [mailto:anzhonda600owners@yahoogroups.com]
> On Behalf Of
> lyletrudell
> Sent:
> Thursday, July 29, 2010 8:16 AM
> To:
> anzhonda600owners@yahoogroups.com
> Subject:
> [anzhonda600owners] Re:
> [2cylinderhondas] Cam grind specs?
> 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
> anzhonda600owners@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 6:57 pm

Re: Cam grind specs?
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.
John gave us this info, I added lift:
Valve timing (at 1mm, 0.039in. cam lift)
1969 Hawaiian?
Lift (. )?
Inlet valve open btdc 0
Inlet valve close abdc 40
Intake Duration (calc) 220
Exhaust valve open bbdc 40
Exhaust valve close atdc 0
Exhaust Duration (calc) 220
Overlap (calc) 0
1970-1972?
Lift (.318")
Inlet valve open btdc 5
Inlet valve close abdc 20
Intake Duration (calc) 205
Exhaust valve open bbdc 40
Exhaust valve close atdc 10
Exhaust Duration (calc) 230
Overlap (calc) 15
Engle Camshaft made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
1972 modified (DF1-3)
Lift (.338")
Inlet valve open btdc
Inlet valve close abdc
Intake Duration (calc) *286?
Exhaust valve open bbdc
Exhaust valve close atdc
Exhaust Duration (calc) *280?
Overlap (calc)
Lobe center 108
*I think these duration numbers are not at at (1mm)to hot for a torque cam?
Add info or correct me if the info is wrong.
Lyle

lyletrudell · Post by **lyletrudell** » Mon Aug 02, 2010 7:45 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
anzhonda600owners@yahoogroups.com
, "lyletrudell" wrote:
> Re: Cam grind specs?
> 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.
> John gave us this info, I added lift:
> Valve timing (at 1mm, 0.039in. cam lift)
> 1969 Hawaiian?
> Lift (. )?
> Inlet valve open btdc 0
> Inlet valve close abdc 40
> Intake Duration (calc) 220
> Exhaust valve open bbdc 40
> Exhaust valve close atdc 0
> Exhaust Duration (calc) 220
> Overlap (calc) 0
> 1970-1972?
> Lift (.318")
> Inlet valve open btdc 5
> Inlet valve close abdc 20
> Intake Duration (calc) 205
> Exhaust valve open bbdc 40
> Exhaust valve close atdc 10
> Exhaust Duration (calc) 230
> Overlap (calc) 15
> Engle Camshaft made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
> 1972 modified (DF1-3)
> Lift (.338")
> Inlet valve open btdc
> Inlet valve close abdc
> Intake Duration (calc) *286?
> Exhaust valve open bbdc
> Exhaust valve close atdc
> Exhaust Duration (calc) *280?
> Overlap (calc)
> Lobe center 108
> *I think these duration numbers are not at at (1mm)to hot for a torque cam?
> Add info or correct me if the info is wrong.
> Lyle

lyletrudell · Post by **lyletrudell** » Tue Aug 03, 2010 3:06 pm

Performance info.
I still have the Petersen book, Japanese import cars 1972.
I was 13 years old and thought the Honda coupe was really cool.
In it, was a performance kit for $125, wow those were the days!
J&J Performance Products, John Modesti, with a picture of him, 38 years ago!
*77mm high domed pistons offered in 10:1 or 12:1 compression.
*Pins, keepers, rings and a head gasket.
They also had lightened rocker arms.
A header for under $30!
They claimed 13 seconds to 60mph.
They also mention suspension modifications to the springs and using Koni shocks.
No mention of a cam in this artical, but I am sure they used a modified one.
Is J&J Performance Products still around?
Is John Modesti still playing with Honda's?
They had an address in the artical:
12321 Culver Drive
Culver City, CA 90230
By the way, I ended up buying my first car when I was 16, a used 71 Pinto for $600. The air cooled Honda was not good for the Buffalo, NY weather!!!
Lyle

--- In
anzhonda600owners@yahoogroups.com
, "lyletrudell" wrote:
> 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
anzhonda600owners@yahoogroups.com
, "lyletrudell" wrote:
> > Re: Cam grind specs?
> > 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.
> > John gave us this info, I added lift:
> > Valve timing (at 1mm, 0.039in. cam lift)
> > 1969 Hawaiian?
> > Lift (. )?
> > Inlet valve open btdc 0
> > Inlet valve close abdc 40
> > Intake Duration (calc) 220
> > Exhaust valve open bbdc 40
> > Exhaust valve close atdc 0
> > Exhaust Duration (calc) 220
> > Overlap (calc) 0
> > 1970-1972?
> > Lift (.318")
> > Inlet valve open btdc 5
> > Inlet valve close abdc 20
> > Intake Duration (calc) 205
> > Exhaust valve open bbdc 40
> > Exhaust valve close atdc 10
> > Exhaust Duration (calc) 230
> > Overlap (calc) 15
> > Engle Camshaft made a cam for the Honda 600. It is described in the Motor Trend, January 1972 "Rapid Transit" article as a torque producing cam.
> > 1972 modified (DF1-3)
> > Lift (.338")
> > Inlet valve open btdc
> > Inlet valve close abdc
> > Intake Duration (calc) *286?
> > Exhaust valve open bbdc
> > Exhaust valve close atdc
> > Exhaust Duration (calc) *280?
> > Overlap (calc)
> > Lobe center 108
> > *I think these duration numbers are not at at (1mm)to hot for a torque cam?
> > Add info or correct me if the info is wrong.
> > Lyle