So i have a 2002 Monte LS 3.4 liter V6...stock it ran a 16.56, now my car has a cai,cat back exhaust,throttle body,plugs,wires,coil packs, and a jet v force plus module..now my best pass was a 16.83 but the other runs were around a 17.00....what would make my car do this..im thinking it is the module but idk...any input would be great.
Thanks!

 

how you launch

 

don't you have to get below .5 reaction time, i think that is very close to red lighting it, but it is still within good r/t, not sure, it has been quite awhile since then???

 

i rev it to 1500 rpms

 

Show a picture of your engine bay. That CAI could be a HAI and hurt performance, just sound nice.

Cat-back has no restrictions that would effect your HP, so that's just for sound

TB is minimal to no HP gain, more of a supporting mod

plugs, wires, coil packs are all perfectly fine, and preferred to stay stock.

 

 

As for the CAI vs. HAI at the track there really isnt a difference maybe a few thousands of a second becasue of the heat soak that the intake will experence while waiting to go, so i wouldnt think that is a problem.

what type of coil packs do you have? becasue i know on the 3800 the stock ones are preffered over MSD ones.

and like space said track conditions are a huge factor, heat, humidity, it also could just be a bad batch of gas. Thats another thing, was your tank at full this time as opposed to a quater tank last time.

 

my tank was full when i ran 16.56 but was at a quarter tank when i ran 16.83...i have the msd coil packs its the 3.4 not the 3.8....and i got the cai from wizzaired which i heard was really good for the 3.4 but i guess not haha...as far as weather it was real close to the same for each race day...

 

The wizaired is a good one, don't worry.

Does the 3.4 engine still have the horrible U-Bend? If so you could just be sucking in more air than you were stock, and you car is having a hard time exhausting it and creating a small lag on take-off.

If they make a downpipe for the 3.4 I would get that next.

 

yea i still have the u-bend...ive heard about that before too..what ur saying makes alot of sense im gonna try that, thanks everyone for your help!