burn a valve with no backpressure?

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Feb 13, 2008 | 07:08 PM

onebadazzls1ta

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From: Jupiter Floriduh

burn a valve with no backpressure?

when I last posted I was concerned about floating a valve, Now I'm worried about burning a valve I have side exit no muffs no cats. Is it possible?

Feb 13, 2008 | 07:15 PM

heavy6.0

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Usually that will happen if you have a BAD exhaust leak. Excess carbon build-up will also cause burnt valves along with detonation from poor fuel quality.

Feb 13, 2008 | 07:30 PM

onebadazzls1ta

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From: Jupiter Floriduh

ok I always use 93 that reminds me what's the minimum octane rating for our cars?

Feb 13, 2008 | 07:35 PM

foreverzero

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From: North Carolina

i heard open headers will do it....but i would also like to know the answer to this

Feb 13, 2008 | 08:25 PM

chuckyt1

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In my opinion, you won't have a problem even if you run open headers. Since you have extensions on there, I wouldn't worry about it at all.

Feb 13, 2008 | 10:19 PM

5.3LJimmy

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From: Napoleonville, LA

That's on old myth. How many racecars run open headers and never burn a valve? I wouldn't run open manifolds, but open headers w/ an extension is safe.

Feb 13, 2008 | 10:22 PM

zeekracing

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I've never hert a valve by running open headers. The only way I know you could hert the valves is maybe by open shorties or manifold. The valves get warped if cold air comes back in the head when you have no back pressure but with open headers cold air can not go past the collector. You should have no problem.