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09-09-2012
Whats up guys. Just traded in my 08 cammed silverado for an 07 grand prix gxp, I am very pleased with it so far. Just did a 16 hour full paint correction on it see pictures. I am heavily involved with performance so suggestions are welcome. Thanks for having me.
09-09-2012
Sup.
Read the LS4 section on Ls1 tech for info on mods if you plan to do them.
Intake swaps and turbo's are pretty much your only options, along with a downpipe and small things. But if you plan for power, build the trans, it wont handle much past the 250-260 crank HP the car puts out.
09-09-2012
alright i will. im trying to get ahold of black bear performance since i had my truck tuned through them to see if they can tune this car. is there a lot of difference with a tune on these cars?
09-10-2012
you have an amazing car there. congrats and good luck with it
09-10-2012
car is a pos you should just give it to me jk ahha that look amazing i want one so bad
09-10-2012
With everything stock, you wont gain much at all. Might get a few more HP with being able to adjust the MAF and see how much KR the motor is getting and make small changes from there. But if the car could breath more (exhaust) if would just be all around better and a tune there can be more helpful. Anything after the cat will gain zero HP, just some FYI. Still alot of small things can be changed like fan settings and such.Originally Posted by zx6rspeedfreak
09-10-2012
Thanks guys Im looking at stuff and will be modding here soon
09-10-2012
going to the track on the 21st. what kind of times should i be expecting? with and without tune. Also seems to act like it has a looser aftermarket converter kind of like the 3200 stall i put in my truck sept this one brake stalls to 3800 rpms
09-10-2012
im guessing 13.9 for your 1/4
09-10-2012
1) intake, 2) resdelete or glasspack and new muffs, 3) built trans, 4) turbo the sh!t out of it haha and get a tune
09-10-2012
turbo cam with the turbo of course
09-10-2012
as much as i want to do a turbo this thing will wheel spin like crazy seems kind of pointless plus since ive only seen remote turbos i dont want to be running that in the winter.
09-10-2012
Maybe a 14.5 in the 1/4th.
And this is how you set up a turbo on a GXP.
09-10-2012
There is a car tuning turbo kit, but its overpriced. $5000 is a lot, especially when you factor in the nice expensive transmission to go with it.
Rear/remote mounts are inefficient, that "cooling" they advertise because of the long distance between the head and the turbo actually causes it to spool very slowly.
09-10-2012
alright thanks guys ill keep looking. Jeez i hope i dont run 14.5 in the 1/4 this seems a little quicker than my old truck but not by much mostly low end. my truck ran 14.6-14-8's.
09-10-2012
Maybe a 14.5 in the 1/4th.
And this is how you set up a turbo on a GXP.
What kit did you go with? how much did it cost, i would be doing it my self.
09-10-2012
couldve swore i saw that GXP's ran low 14's high 13's...
09-10-2012
he was messing with him the gtp's run mid to high 14's
09-10-2012
google picture.
I own a 00 gtp.
09-10-2012
A GXP wont run much better. Its got more power when stock compared to a GTP, same exact trans, its 200lbs more and will wheel spin like no other when mashed to the floor. Its still should only run in the 14's.
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