317 heads question
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Teching In
Joined: Jun 2012
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From: Houston Tx
317 heads question So I'm interested in doing FI build and was wondering if there are any negatives in running 317s for maybe 6 months or a year with a small cam on my car besides loss of power? Basically would it hurt my car to lower the compression that much for that long?
It really wouldnt hurt you at all to do that. Like you said, you would just be down in power.
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Generally a decent combo will get effected approximately 20hp per point between 8.0:1-14.0:1. Running those wont hurt you. You may even be able to make similar power on lower octane fuel if you can tune to take advantage.
If he were to lose 20HP he'd have to be making 500hp.
So taking a 310hp stock ls1 and dropping it to 9:1(ish) would lose approx. 12.4hp. And thats at the flywheel.
