Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

Here's a legitimate question....

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Old 04-24-2001, 02:25 PM
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Car: 1992 Camaro RS
Engine: 5.7
Transmission: T-5
Here's a legitimate question....

How do you select the right cam?
What determins the intake/exhaust/duration and lobe?
Can you go to a higher lift if you have a larger intake (more cfm) and an open exhaust?
And what about the duration and lobe?

And lets just say you can burn a new chip or reprogram accordinly.

Am I making sense?
How many people are using the "Hot" cam?
Of those people, the rest of there engine setup is probally different one way or another, right?
So how can someone suggest a cam without actually testing it with their setup.

This is getting to long for me. I don't like long topics.
What kind of knoledge do you need to have the untimate cam for your custom engine?




------------------
92 RS, 350, Street & Performance MPFI, TFS heads,
Crane Rollers,
MSD Digital 6 Plus, 22lb injectors,
ZZ3 cam, Edelbrock Headers 1 5/8, 3" Exhaust,
Hi Flow 3" Cat, stock T-5,
stock rear 3.08, koni yellow adjustable front, twin turbo glass hood, T-tops, Auto Meter Ultra Lite Series 2 5/8 gauges, Teal Green
Old 04-24-2001, 03:31 PM
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Car: 89 IROC-Z
Engine: 383
Transmission: 700R4
Chevy High Performance recently did a good article on cam choice. I don't think it's this month's issue, maybe last month. Hope it helps.


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Riccioli Performance Motorworks

--RPM Racing--

-Currently building first ever engine. 383 with Super Ram plenum and runners, Edelbrock lower intake, Bosch 24# injectors, AFR 190 heads, MSD ignition.
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-Art Carr 700R4 trans??


Attention Everyone!!! I will be changing my name on the message boards to HardcoreZ28 sometime in the near future. Just wanted to let everyone know.
Old 04-24-2001, 04:55 PM
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if you want a good suggestion, call comp cams (dont have their #) www.compcams.com their tech line is great.
Old 04-24-2001, 06:52 PM
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Car: 1992 Camaro RS
Engine: 5.7
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Yeah, Paul your right, I've been getting CHP for the last 5 years and have a stack of mags. Now that you said that I remember the issue your talking about, I'll look it up.
Muchas gracis!

------------------
92 RS, 350, Street & Performance MPFI, TFS heads,
Crane Rollers,
MSD Digital 6 Plus, 22lb injectors,
ZZ3 cam, Edelbrock Headers 1 5/8, 3" Exhaust,
Hi Flow 3" Cat, stock T-5,
stock rear 3.08, koni yellow adjustable front, twin turbo glass hood, T-tops, Auto Meter Ultra Lite Series 2 5/8 gauges, Teal Green
Old 04-24-2001, 07:09 PM
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What engine? How modded? What goals? Street or strip? Also legitamit questions
street driven cars with stock converter "auto" should have no more than a 224 @.50.
I have a comp magnum 224/224 cam with all stock parts on my lg4 even the comp is intact and it runs great at higher rpm above 2000rpm. "Lose a little gain a little" the camshaft motto
SSC. BTW summit I think oct of 2000 has that article about cams.
Old 04-24-2001, 07:18 PM
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Car: 89 IROC
Engine: Yes
Transmission: That, too.
Cams need to be very carefully selected to match the intended use of the motor and to the other components working with it. Cams don't act by themselves, they work as a partnership with the heads, intake, and exhaust. One of the best methods I used when doing research into head/cam/intake combinations was to keep a very close eye on this board to see how various combos worked. I am working towards a car in the 12 second range at the strip, so I kept my eyes peeled for anyone else with an L98 naturally aspirated who was running in the 12s. I kept looking at the signature lines of the people on this website, trying to see how well their combos really performed versus how they thought they ought to perform. Talk is cheap, I wanted to see the time slips.

After looking at enough combos and correlating it with 1/4 mile performance a solid trend starts to develop, and you begin to understand what parts combos work well with others.

There are some excellent books on the market to help you understand camshaft selection and design as well as how to match cams to other components in order to create a well balanced system. Balance between components is the key to a well performing system.
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