High performance camshaft question

Sbcglobal · Post by **Sbcglobal** » Thu Jul 30, 2015 3:42 am

Hi Guys,
I have a high-performance Camshaft it might be from one of the Hawaiian cars. If I install it in my stock engine, would it still perform OK and Idle well? Or should I leave it alone?
Thanks,
Elliot

Kevin Lister · Post by **Kevin Lister** » Thu Jul 30, 2015 11:20 am

I'm under the impression that in order to develop the extra HP you need the cam, the head (different valves?), and the larger carb.
You may be able to run with the cam but it may not be meaningful.
kev
From:
"elliot62@... [2cylinderhondas]"
To:
2cylinderhondas@yahoogroups.com
Sent:
Thursday, July 30, 2015 3:42 AM
Subject:
[2cylinderhondas] High performance camshaft question
Hi Guys, I have a high-performance Camshaft it might be from one of the Hawaiian cars. If I install it in my stock engine, would it still perform OK and Idle well? Or should I leave it alone?
Thanks, Elliot

Lyle Trudell · Post by **Lyle Trudell** » Fri Jul 31, 2015 7:54 am

I agree with the others, leave it alone. A cam with more lift and duration needs more rpm, air/fuel, and free flow exhaust to work properly. It is a tuned package, leave out one part and you will gain nothing or make it worse. The Honda 600 engine/transaxle is not designed for much HP, more power equals the next weakest thing will break. Although I do like more power : ) Lyle

Dr. Whiting · Post by **Dr. Whiting** » Fri Jul 31, 2015 8:43 am

You need to check the specifications against a stock camshaft. Having built many high performance engines you'll only be opening a can of worms if you don't establish a baseline for reference.
If it turns out to be a Hawaiian cam then you can just bolt it in and run with it. You won't see much return for the effort, but at least it gives a conversation starter at the gas pump with your new found friends! Our carburetors by design are very forgiving with engine performance changes. You won't need to drill jets or anything else since more air drawn through already makes the mixture richer. With a Hawaiian cam you also won't be raising the revs enough to need different springs.
Bruce

kingtrans2003 · Post by **kingtrans2003** » Fri Jul 31, 2015 9:29 am

�
Make it dual exhaust using the original header pipe stubs to weld the new pipes to, bypassing the heater exchange...A good exhaust man can do it...kit the carb and raise the slide pin a little (in increments) after you get it started and running with just the pipes altered.....make it electronic ignition (points eliminator) and it WILL RUN. Sounds to me that a few of these members want your cam...I personally would use it!
On Fri, 31 Jul 2015 10:54:42 -0400 "Lyle Trudell craft59@...
[2cylinderhondas]" I agree with the others, leave it
> alone. A cam with more lift and duration needs more rpm, air/fuel, and free > flow exhaust to work properly. It is a tuned package, leave out one part and > you will gain nothing or make it worse. The Honda 600 engine/transaxle is not > designed for much HP, more power equals the next weakest thing will break.
> Although I do like more power : ) Lyle
> -----Original
> Message-----
> From:
> Kevin Lister misterpoopoohead@... [2cylinderhondas]
>
> To: 2cylinderhondas
>
> Sent: Thu, Jul 30, 2015 2:21
> pm
> Subject: Re: [2cylinderhondas] High performance camshaft
> question
> I'm under the impression that in order to
> develop the extra HP you need the cam, the head (different valves?), and the > larger carb.
> You may be able to run with the cam but it
> may not be meaningful.
> kev
> From:
> "
> elliot62@...
> [2cylinderhondas]" 2cylinderhondas@yahoogroups.com
> To:
> 2cylinderhondas@yahoogroups.com
> Sent:
> Thursday, July 30,
> 2015 3:42 AM
> Subject:
> [2cylinderhondas] High
> performance camshaft question
> Hi Guys,
> I have a high-performance Camshaft it might be from one of the > Hawaiian cars. If I install it in my stock engine, would it still > perform OK and Idle well? Or should I leave it alone?
> Thanks,
> Elliot
[/quote]
Old School Yearbook Pics
View Class Yearbooks Online Free. Search by School & Year. Look Now!
classmates.com

Alan Stanyon · Post by **Alan Stanyon** » Fri Jul 31, 2015 9:32 am

I see lot's of references to the "Hawaiian cam" i can only assume that the engine's destined for the States were detuned (correct me if i am wrong) in the UK we got the full fat version ie the 45hp engines these have 36mm carb's and Siamesed exhaust's without the heat exchanger if you would like to check cam/carb part numbers see here http://www.cmsnl.com/honda-z600-coupe-1 ... partslist/ this is a european site (Dutch actually) and the part numbers cover UK and European part numbers ie 45hp engines.
Hope this helps Alan To: 2cylinderhondas@yahoogroups.com From: 2cylinderhondas@yahoogroups.com Date: Fri, 31 Jul 2015 08:43:06 -0700 Subject: [2cylinderhondas] Re: High performance camshaft question
You need to check the specifications against a stock camshaft. Having built many high performance engines you'll only be opening a can of worms if you don't establish a baseline for reference.
If it turns out to be a Hawaiian cam then you can just bolt it in and run with it. You won't see much return for the effort, but at least it gives a conversation starter at the gas pump with your new found friends! Our carburetors by design are very forgiving with engine performance changes. You won't need to drill jets or anything else since more air drawn through already makes the mixture richer. With a Hawaiian cam you also won't be raising the revs enough to need different springs.
Bruce

Lyle Trudell · Post by **Lyle Trudell** » Fri Jul 31, 2015 10:32 am

If you read Elliot's original question, he wants to keep the car stock. Why put a hot cam in it? True doing what you suggest will get a little more power, with no heater. It's his car whatever he wants. I have a couple Hawaiian cams I might do another engine someday. Too many other car/motorcycle projects right now. I do like driving my all stock Honda Coupe, although the heater is not important in Florida.

fearsuminjin · Post by **fearsuminjin** » Fri Jul 31, 2015 12:18 pm

Just out of interest the UK spec carburettor is a variation on a Gl1000 Goldwing Keihin non diaphragm type here Honda Gl1000 Gold Wing 1978 Usa Carburetor Components I - schematic partsfiche
Honda Gl1000 Gold Wing 1978 Usa Carburetor Com...
CARBURETOR COMPONENTS I Honda GL1000 GOLD WING 1978 USA, free schematic spare parts
View on www.cmsnl.com
Preview by Yahoo

Note: 1 image(s) originally linked in this post are no longer available (ec).

Kevin Lister · Post by **Kevin Lister** » Fri Jul 31, 2015 1:12 pm

Yeah, it makes sense that the engine was originally designed to develop 45HP and the Continental US got a de-tuned engine.
From:
"Alan Stanyon alanstanyon@... [2cylinderhondas]"
To:
"2cylinderhondas@yahoogroups.com"
Sent:
Friday, July 31, 2015 9:32 AM
Subject:
RE: [2cylinderhondas] Re: High performance camshaft question
I see lot's of references to the "Hawaiian cam" i can only assume that the engine's destined for the States were detuned (correct me if i am wrong) in the UK we got the full fat version ie the 45hp engines these have 36mm carb's and Siamesed exhaust's without the heat exchanger if you would like to check cam/carb part numbers see here http://www.cmsnl.com/honda-z600-coupe-1 ... partslist/ this is a european site (Dutch actually) and the part numbers cover UK and European part numbers ie 45hp engines.
Hope this helps Alan To: 2cylinderhondas@yahoogroups.com From: 2cylinderhondas@yahoogroups.com Date: Fri, 31 Jul 2015 08:43:06 -0700 Subject: [2cylinderhondas] Re: High performance camshaft question
You need to check the specifications against a stock camshaft. Having built many high performance engines you'll only be opening a can of worms if you don't establish a baseline for reference.
If it turns out to be a Hawaiian cam then you can just bolt it in and run with it. You won't see much return for the effort, but at least it gives a conversation starter at the gas pump with your new found friends! Our carburetors by design are very forgiving with engine performance changes. You won't need to drill jets or anything else since more air drawn through already makes the mixture richer. With a Hawaiian cam you also won't be raising the revs enough to need different springs.
Bruce

Don B Laughton · Post by **Don B Laughton** » Fri Jul 31, 2015 3:19 pm

45 horse was reached at 8,000rpm. Doing that for prolonged periods was beyond the reasonable limits for the basic design. Yes, you could do it running it up to fourth but crushing at 8,000 was a disaster waiting to happen. The 36 horse engine topped out at 7,000. With reasonable care, most, were good for 60,000mi. Still, cruising at 7,000 was not the smartest thing you could do. 600cc cars were city transportation, not freeway flyers.
Since new crankshafts are no longer available, a light foot is recommended. It is still a fun little car. Enjoy.
Sent from my iPhone

On Jul 31, 2015, at 1:12 PM, Kevin Lister
misterpoopoohead@...
[2cylinderhondas] wrote:
Yeah, it makes sense that the engine was originally designed to develop 45HP and the Continental US got a de-tuned engine.
From:
"Alan Stanyon
alanstanyon@...
[2cylinderhondas]" <
2cylinderhondas@yahoogroups.com
To:
"
2cylinderhondas@yahoogroups.com
" <
2cylinderhondas@yahoogroups.com
Sent:
Friday, July 31, 2015 9:32 AM
Subject:
RE: [2cylinderhondas] Re: High performance camshaft question
I see lot's of references to the "Hawaiian cam" i can only assume that the engine's destined for the States were detuned (correct me if i am wrong) in the UK we got the full fat version ie the 45hp engines these have 36mm carb's and Siamesed exhaust's without the heat exchanger if you would like to check cam/carb part numbers see here http://www.cmsnl.com/honda-z600-coupe-1 ... partslist/ this is a european site (Dutch actually) and the part numbers cover UK and European part numbers ie 45hp engines.
Hope this helps Alan
To:
2cylinderhondas@yahoogroups.com
From:
2cylinderhondas@yahoogroups.com
Date: Fri, 31 Jul 2015 08:43:06 -0700
Subject: [2cylinderhondas] Re: High performance camshaft question
You need to check the specifications against a stock camshaft. Having built many high performance engines you'll only be opening a can of worms if you don't establish a baseline for reference.
If it turns out to be a Hawaiian cam then you can just bolt it in and run with it. You won't see much return for the effort, but at least it gives a conversation starter at the gas pump with your new found friends! Our carburetors by design are very forgiving with engine performance changes. You won't need to drill jets or anything else since more air drawn through already makes the mixture richer. With a Hawaiian cam you also won't be raising the revs enough to need different springs.
Bruce