Backfirering when shifting
Thread Starter
Teching In
Joined: Jan 2007
Posts: 29
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Backfirering when shifting Alright it seems like whenever I shift at a higher RPM, my car basically backfires a little bit. Now I have talked to some people and some said that it is normal for that type of engine, yet at couple of people (a good friend and a mechanic) suggest that I could have a valve problem. So I was wondering if backfirering, when shifting, was normal or do i actually have a problem. Also if it is normal, could someone kind of explain to me why it is normal so I can explain it to the other people when I talk to them. Thank you very much.
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Thread Starter
Teching In
Joined: Jan 2007
Posts: 29
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yea my buddy and i checked that and it seemed a little on the low side. we are going to tape the gauge to the winshield and take her out for a spin to see if it drops when driving. could a bad fuel pressure regulator be the problem?
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Verdad Gallardo Man, there are a number of things, just test it and go from there, i say you might have a weak pump possibly, i have seen many a LT1 pumps weak, but not enough to keep it from running. So do as you plan and go from there.
Thread Starter
Teching In
Joined: Jan 2007
Posts: 29
Likes: 0
yea i just put in headers and the stock manifolds were in such bad condition, i actually had a leak from them. It never backfires at WOT only when im shifting. the car runs fine when im accelorating but as soon as i shift at a higher rpm, there is a small backfire or pop.
LT1's do that, expecially when you put Headers on them and open up the Exhaust.. Mine even did it and it was a Auto.. my friends M6 does it all the time, and we are both tuned a hair rich.
