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Pontiac Grand Prix Performance Modifications

25 messages,  Last post on May 07, 2008 at 5:15 PM

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What is this discussion about? Pontiac Grand Prix, Performance Mods, Sedan

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#17 of 25 03 grandprix ac compressor clutch by cudac May 18, 2007 (2:44 pm)
does anyone know if you have to take the compressor off to put a new ac clutch on.
#18 of 25 Re: GXP Computer Chip [tlauro] by whosnextdcl Oct 25, 2007 (4:45 am)
Replying to: tlauro (Jul 17, 2006 2:05 pm) Thanks for your help with the info on the fenderwell intake. When you mentioned that there is a company that modifies the PCM, were you referring to the Vector, or another company? If another company does it, could you tell me their name? Thanks again.
#19 of 25 Just got a 99 pontaic grand prix SE...Why? by rwasson Nov 15, 2007 (3:17 pm)
As you can see form the title i just bought a 99 pontaic grand prix SE. Soon as i get it home i start to un-ravel its problems. First of all, the heat does not blow. At all, its indiana in the winter, heat is a must. None of the heat settings do anything. Not even sure where to start. Also sometimes when its idling it will rev up to about 3K RPM a couple times and then Die! Not sure what to do there either. Im a college student so taking it to a dealer isnt exactly an option . Any help at all would be greatly appreciated.   I also am trying to install a new stereo, seeing as how the old one wont play CDs. Anyone know where i can get a wiring diagram for a 99 grand prix?   thanks   -Roy
#20 of 25 Grand Prix Supercharger by kbcobra Dec 06, 2007 (4:55 pm)
#21 of 25 Grand Prix Supercharger by kbcobra Dec 06, 2007 (4:55 pm)
Hi, I am looking at getting a grand prix GT, since I can get one cheaper than a GTP. I was wondering if you could just bolt on a 3800 supercharger without any mods? What would I have to do to do this? And also, I was looking at running nitrous. How much hp could I yeild with a s/c and a ZEP dry nitrous system?   Thanks Chris KB cobra
#22 of 25 chip? by swampblues Feb 26, 2008 (3:35 pm)
i have an 07 grand prix gt, and im looking for a good performance chip if there is one, anybody have any suggestions?
#23 of 25 new member:Performance help? by fandfprixx Mar 04, 2008 (4:52 pm)
Hey. Brand new to this forum and pretty new to the car world itself. I have a 1999 pontiac grand prix GT and so far all i have done is put in a cool air intake system but i was wondering what else i could do to the car to enhance performance and not spend alot of money. Anyone with any suggestions please let me know or e-mail me nyplaya4224yahoo.com thanks! Replies to this message: mawdeuce (May 07, 2008 5:15 pm)
#24 of 25 Intake and CryO2 System by mawdeuce May 07, 2008 (5:08 pm)
Hi, I've recently purchased a 2006 Grand Prix, SE trim with the 3.8L Series III engine. I would like to locate and purchase a K&N Filtercharger or other K&N airbox replacements for minor horsepower gains, and was wondering if there's anything I'd need to know about the emissions controls and how they would work with the system that's already in the vehicle, I'm trying to avoid the "Service Engine Soon" light if at all possible. Also I'd like to install a CryO2 system but wonder if it's even worth it with an engine that's naturally aspirated. Thanks!
#25 of 25 Re: new member:Performance help? [fandfprixx] by mawdeuce May 07, 2008 (5:15 pm)
Replying to: fandfprixx (Mar 04, 2008 4:52 pm) I've heard that the Tornado brand intake tube inserts can increase both horsepower and fuel mileage, and cost under $30 in most auto parts stores, if that helps any....I also had a 1997 Bonneville that experienced quicker throttle response and possibly a power boost with Bosch Platinum +4 spark plugs.....but then again I also combined that with fully synthetic Castrol Syntec oil, a K&N Performance Gold oil filter, a Fram Airhog air filter and 93 octane or higher fuel at all times, I know it'll be hard to do now though cause of the outrageous gas prices, and I never ever ever had any even slight problems with performance or emissions.....had some "gitupandgo" right up till the day I traded it for the Grand Prix I'm driving now, the Bonneville had over 160,000 miles on it but ran like a dream, but figured that since it had the same engine as your 1999 Grand Prix that you may get some use out of that info. Hope I helped a little!

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