TGPForums.com

RACING => TGP vs. All => Topic started by: jarrade on January 13, 2011, 03:11:16 PM

Title: Re-Raced the 99 GTX
Post by: jarrade on January 13, 2011, 03:11:16 PM
After i did my chip and replaced the plugs and wires i raced my dad all the way home. He beat me but not to bad. He in the past month has replaceed the fuel pump and did plugs and wires. His car is fast as hell but mine didnt do bad!
Title: Re: Re-Raced the 99 GTX
Post by: GPChief on January 14, 2011, 03:52:35 AM
What mods does it have?

On my 1997 GTP it has:
PCM upgrade
P & P heads
P & P Gen III
3.2 pulley
MDS coils & wires
TPG headers
3" exhaust (complete)
Shift kit
Thrasher intake
Bigger TB
UD pulleys
Poly mounts
F-body brakes
Goodrich brake lines
GMPP swaybars
front & rear STBs
& other cosmetic + interior upgrades
Title: Re: Re-Raced the 99 GTX
Post by: jarrade on January 18, 2011, 12:26:47 AM
As of right now the only thing done to his car has a stage 2 or 3 supercharger with the boost turned up. The things he has for it:
PCM upgrade
Headers
3 inch stainless exhaust
3.4 pulley
New supercharger snout
2 inch lowering springs

I think that's everything but im not sure.
Title: Re: Re-Raced the 99 GTX
Post by: Jonpro03 on January 18, 2011, 08:33:02 AM

What is a stage 2 supercharger?
Title: Re: Re-Raced the 99 GTX
Post by: jarrade on January 18, 2011, 12:57:36 PM
I meant has a stage 2 supercharger.
Title: Re: Re-Raced the 99 GTX
Post by: Jonpro03 on January 19, 2011, 07:51:05 AM
I know what you meant, I don't know what a stage 2 supercharger is. How is it different than a normal supercharger?
Title: Re: Re-Raced the 99 GTX
Post by: jarrade on January 19, 2011, 12:15:31 PM
From what i know the internals are different. Idk a bunch about superchargers. im not sure what all is different about it.
Title: Re: Re-Raced the 99 GTX
Post by: mfewtrail on January 19, 2011, 05:06:25 PM
I know what you meant, I don't know what a stage 2 supercharger is. How is it different than a normal supercharger?

It may be a ported one from one of the 3800 vendors.
Title: Re: Re-Raced the 99 GTX
Post by: GPChief on January 22, 2011, 02:24:08 AM
Stage I is having the outlet (underside) ported to get more flow into the engine.  Stage II is having the inlet ported (usually to 78MM) and removing the air divider.

http://www.zzperformance.com/grand_prix/products1.php?id=162&catid=106

http://www.wbodystore.com/grandprix/Ported-Supercharger-Housings---New-Lower-Pricing!-p-23.html

If you "goggle" Eaton M90 porting there are several articles on this.
Title: Re: Re-Raced the 99 GTX
Post by: Jonpro03 on January 23, 2011, 08:44:55 AM
Hmm, I might do this :laugh:
Title: Re: Re-Raced the 99 GTX
Post by: GPChief on January 24, 2011, 01:15:51 AM
I did a stage I myself, IMHO a good free mod.  I have a GEN V to put on but that will wait 2 more years.

I dont know why people waste their money on nose cones for the EATON blowers, unless you are milling it down there really isnt much room for improvement.
Title: Re: Re-Raced the 99 GTX
Post by: jarrade on January 24, 2011, 12:59:11 PM
My dad bought a new one because it comes with a 3.4 pulley already on it and has a quick connect design that allows you to quickly change the pulley to a smaller size. Thats what he told me but i may have misunderstood him?
Title: Re: Re-Raced the 99 GTX
Post by: jarrade on January 25, 2011, 01:02:03 PM
Well last night my family went out to dinner. Me and my dad took our cars and on the way back we raced again. From the roll starting at about 25-30 i took him by a car length. I held a pretty solid 1 car length the whole race then we let out coming up to an intersection. I was going about 85 when i let out.