Blowing out Spark...

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Jun 2, 2009 | 03:42 PM

#11

LowBlack99

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From: Southaven,MS

Quote:

Originally Posted by 03tahoe22

stock valvetrain and internals.....

We have a winner! Get some stiffer springs.

Jun 2, 2009 | 05:09 PM

#12

thunderwagen

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From: Ft. Worth, Tx

At that much boost you are probably floating the valves. I had the same problem and once I swapped the springs it was all good.

Jun 5, 2009 | 09:48 AM

#13

03tahoe22

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From: Palm Beach, Florida

The breaking up is all of third gear in the 1/4 mile.... I was told if it was valve float it would only be in the high about to shift rpm range. Going to gap the plugs this weekend and then test it....

Jun 5, 2009 | 11:04 AM

#14

thunderwagen

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From: Ft. Worth, Tx

I promise you its your valve springs. The stock springs can't take that much boost and will float. Get some patriot golds or some 918's.

Jun 5, 2009 | 06:32 PM

#15

code4

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Quote:

Originally Posted by 03tahoe22

I had the same problem in 3rd @ 16#'s. I gapped my plugs down to .025 & raised my dwell time above 4000 rpm's to fix it. But since you are running stock springs it could be that.