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Old 09-16-2007   #10
Pete
 
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
Default Re: secondaries not opening at full throttle

Quote:
Originally Posted by jonszr1
pete,do you need andifferent tune/ prom if you pull the secondaries. have you tested before and after at the strip . i would really like to do this I am so tired of chasing secondary gremlins. love to here your thoughts on this

Yes,it needs some chip changes,nothing a good tuner can't do.

I have done a before and after and saw a gain of 4-6 RWHP on my 350ci and about 8-10 RWHP on the big inchers,nothing to brag about.
Lost no low end power from 2k rpm & higher.

The best part you eliminate some high priced secondary parts.

Pete
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'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
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Last edited by Pete; 09-16-2007 at 05:21 PM.
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