Quote:
Originally Posted by paul s.
For a full weight street car, I like the Performer RPM.
Nothing wrong with a tight LSA cam and manifolds.... circle track racers use that combo all the time and they really need to accelerate coming off the corner. It's too much duration that is the killer. Yes, it's all interrelated but the majority of guys out there are happy running their engine no farther than 5,500 rpm. In that case, 224 degrees is PLENTY of cam for 500hp. Heck, Car Craft made 501hp over a decade ago with a little 230 flat tappet.
I wouldn't be so quick to give up 15hp, that's a slippery slope. Let's say that 15hp is at peak, but you have your valvetrain sorted out so your able to rev a 500-1,000 rpm PAST peak... AND NOT HAVE YOUR POWER AND TORQUE CURVES DROP LIKE A ROCK... I'm PRETTY sure you would notice that.
A mild flat tappet 230 @ .050 camshaft, paired with a ported set of E-heads will make power above 6,000 rpm (I realize some people refuse to believe that but whatever). Now, put a roller in there with the proper valvesprings and you have a recipe for a seriously broad torque curve.
I like this cam http://www.sandovalperformance.com/#...rgalleryv266=3
but I am biased
EDIT: If a guy is going to go drag racing and uses a high stall convertor, then yes, a bigger cam is usually called for.
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Looking at that cam, I do like it. I want the choppy idle and broad torque curve. Ive got the other parts to turn 6000 easily.
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1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas
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