Pontiac Solstice Forum - View Single Post

I have read, and re-read the posts in this thread. I am still look for any part of Jack's posts that look like he was bragging. It certainly does appear that he was not aware of the legality of his car for A/Stock.

Simply put, Jack, you basically can't do ANYTHING to the intake system or engine in stock class EXCEPT remove or replace the air filter. The cat can not be replaced (certain limitations), but the exhaust is free for modification. So, as presently equipped, you are positioned for A/Street Prepared.

BTW, some people have dyno'ed the bypass mod, and have found that low end response increased but they saw some boost drop at higher rpm. Another discovery is that the CIA has shown SOME gains, but the real winner is the exhaust. A/SP is hopeless for the GXP/RL (but the classes are usually smaller), but if you want to maintain your mods, this is your class. If you want to run A/SP, lower the car, add stiffer bars, do every legal mod, and learn to shift well, because second gear sucks on the GXP/RL. Hopefully the requests to SCCA to move the GXP/RL to B/SP will be successful.

edit - crank in about 2.3 neg camber front and 2 neg rear and you will be amazed.

And everybody

__________________
Redline (pre-halt), Pearl, Black/Red
complete option list except auto, 3" MF cat-back,
painted calipers, owner installed power lock buttons

Last edited by snaponbob : 05-24-2007 at 05:59 PM.

	snaponbob Member Join Date: Jun 2006	I have read, and re-read the posts in this thread. I am still look for any part of Jack's posts that look like he was bragging. It certainly does appear that he was not aware of the legality of his car for A/Stock. Simply put, Jack, you basically can't do ANYTHING to the intake system or engine in stock class EXCEPT remove or replace the air filter. The cat can not be replaced (certain limitations), but the exhaust is free for modification. So, as presently equipped, you are positioned for A/Street Prepared. BTW, some people have dyno'ed the bypass mod, and have found that low end response increased but they saw some boost drop at higher rpm. Another discovery is that the CIA has shown SOME gains, but the real winner is the exhaust. A/SP is hopeless for the GXP/RL (but the classes are usually smaller), but if you want to maintain your mods, this is your class. If you want to run A/SP, lower the car, add stiffer bars, do every legal mod, and learn to shift well, because second gear sucks on the GXP/RL. Hopefully the requests to SCCA to move the GXP/RL to B/SP will be successful. edit - crank in about 2.3 neg camber front and 2 neg rear and you will be amazed. And everybody __________________ Redline (pre-halt), Pearl, Black/Red complete option list except auto, 3" MF cat-back, painted calipers, owner installed power lock buttons Last edited by snaponbob : 05-24-2007 at 05:59 PM.