What boost level will stock springs start to float ?

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May 22, 2009 | 03:33 AM

BigRich954RR

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From: NJ

What boost level will stock springs start to float ?

Ok with a stock cam how much boost can you run before the springs will let the valves start to float ? at around 6-6500 rpms?

May 22, 2009 | 05:37 AM

EPP

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I've had stock valvesprings handle 15 psi before, but it is going to depend on your combination and how many miles you have on them. Bob

May 22, 2009 | 12:27 PM

BigRich954RR

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From: NJ

Sweet stock ls2 with maybe 25k miles

May 22, 2009 | 12:50 PM

ls1290

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The size of cam is going to be a big factor.

May 22, 2009 | 12:55 PM

Chronicle

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From: Maryland

If you already have your turbo setup installed and running, I'd just leave the boost at a low level (say 5-8 psi) and just buy the springs when you graduate from a stock cam.

May 22, 2009 | 02:03 PM

black98ws6ta

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From: louisville,ky

Ive made 500 rwhp on stock cams with a turbo car at 8-9 psi and started to see valve float. They will hold up in a supercharged car better since there will be less exhaust backpressure.