How Do you pick a CAM???
Thread Starter
Racer
Joined: Mar 2002
Posts: 397
Likes: 2
From: Marstons Mills MA
How Do you pick a CAM???
Who is in charge here...please? Hey it's me again looking for more ADVICE!!!
I originally ordered a Comp Cam 228228/ .588/.588 112 lsa.. agressive.
The time lag on the order and listening more to input from others and reading more signatures, I backed down to the TR 224/224 .563/.563 112 lsa thinking agressive but not far out! Now I'm thinking why aren't I getting the reverse split by TR 230/224 .575/.563 111 LSA Would this be agressive but also street friendly? Now ..once I finally take delivery of a CAM I guess I can stop re-thinking and wondering what if? Take me out and shoot me! :confused:
I originally ordered a Comp Cam 228228/ .588/.588 112 lsa.. agressive.
The time lag on the order and listening more to input from others and reading more signatures, I backed down to the TR 224/224 .563/.563 112 lsa thinking agressive but not far out! Now I'm thinking why aren't I getting the reverse split by TR 230/224 .575/.563 111 LSA Would this be agressive but also street friendly? Now ..once I finally take delivery of a CAM I guess I can stop re-thinking and wondering what if? Take me out and shoot me! :confused:
Melting Slicks
Joined: Mar 2001
Posts: 2,372
Likes: 51
From: New Milford CT
Re: How Do you pick a CAM??? (CapeCodCoupe)
I agree that picking a cam is difficult. If you go more agressive than a 224/56x/112, I would definately go with a proven tuner package so you know the parts will all work together.
Look at some of the posts here of people who paid good money for mismatched cam and heads, dyno'd low rwhp, then had to have someone else redo it.
Look at some of the posts here of people who paid good money for mismatched cam and heads, dyno'd low rwhp, then had to have someone else redo it.
Racer
Joined: Jan 2003
Posts: 411
Likes: 1
From: Newhall CA
Re: How Do you pick a CAM??? (see5)
I am going through this pain too. My criteria (in order) are:
1 - Pass smog
2 - Idle not too rough
3 - Not too cruel to the valves.... Longevity... I am keeping the car for MANY years
4 - More HP
Been thinking about the LS6 cam, but getting a lot of flak :)
Any suggestions?
- C5B
1 - Pass smog
2 - Idle not too rough
3 - Not too cruel to the valves.... Longevity... I am keeping the car for MANY years
4 - More HP
Been thinking about the LS6 cam, but getting a lot of flak :)
Any suggestions?
- C5B
Melting Slicks
Joined: Jan 2001
Posts: 2,635
Likes: 2
From: Aloha, Oregon
Re: How Do you pick a CAM??? (CapeCodCoupe)
Who is in charge here...please? Hey it's me again looking for more ADVICE!!!
I originally ordered a Comp Cam 228228/ .588/.588 112 lsa.. agressive.
The time lag on the order and listening more to input from others and reading more signatures, I backed down to the TR 224/224 .563/.563 112 lsa thinking agressive but not far out! Now I'm thinking why aren't I getting the reverse split by TR 230/224 .575/.563 111 LSA Would this be agressive but also street friendly? Now ..once I finally take delivery of a CAM I guess I can stop re-thinking and wondering what if? Take me out and shoot me! :confused:
I originally ordered a Comp Cam 228228/ .588/.588 112 lsa.. agressive.
The time lag on the order and listening more to input from others and reading more signatures, I backed down to the TR 224/224 .563/.563 112 lsa thinking agressive but not far out! Now I'm thinking why aren't I getting the reverse split by TR 230/224 .575/.563 111 LSA Would this be agressive but also street friendly? Now ..once I finally take delivery of a CAM I guess I can stop re-thinking and wondering what if? Take me out and shoot me! :confused:
I understand the theory of reverse split, at least much of it. Since the intake close dictates much of the power a cam makes, to extend it out with a wider intake allows to have less overlap and make power across a broader rpm range. Less overlap will maintain low/mid range torque while the later closing of the intake lobe offers high end power. nice. however, the RS cam you mention still has a lot of overlap at 111lsa, even more with the wider intake lobe.
If you have a set of heads that have been ported to where the exhaust flows are about 85-87% of intake, a straight-up cam will work great.
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Re: How Do you pick a CAM??? (rwj383)
I am waiting for Brian to get back to me with some flow #s without a pipe. I have done some calculation on successful H & C packages and if memory serves me correctly with a 70-73% I/E exhaust efficiency the hot lick is to use a 4-6 degree longer exhaust duration. Once the #s come back from Brian I will try and figure out a decent cam for the TEA heads. My next cam will probably be a 230/234 .600 111lsa.
Phillip
Phillip
