stage 1&2 [Archive] - Chevy Cobalt SS Forum : Chevrolet Cobalt SS Forums

: stage 1&2


srt4klr
05-17-2006, 11:06 PM
I have a question concerning the stage kits , my mods sre as follows , boost bypass mod , 3.00 pulley & k&n intake , what performance gains would be realized with the stage 1 kit verses the stage 2 kit ?

CobaltSSilver
05-18-2006, 04:00 AM
Stage 1 bigger injectors and an ECU reflash. They claim you get 31HP increase and no TQ. The HP increase is from 5K RPM and higher. I have only the Stage 1 and noticed that the throttle response is better from about 2500 RPM and up.

Stage 2 you already have, it's basically a 3" pulley and drive belt. They have smaller pulleys at SFHP, http://www.southfloridapulleyhq.com/

The stage 2 if you didn't have it would up your TQ by 18lbs and give you another 10 HP. I hear the tq curve is table top flat and gives the car a lot more power through the entire band.

I hope this helps.

srt4klr
05-18-2006, 09:53 PM
yeah it helps alot,thanks

Sp00ner
05-19-2006, 10:24 AM
Stage '2' w/2.8" SFPH Pulley and K&N CAI

http://i18.photobucket.com/albums/b121/sp00nd00d/Car%20Data/Stage2_28Pulley_AF_dynoscan.jpg

Butch Sosa
05-23-2006, 08:49 PM
hey spooner what class do you run in for scca with all your mods? is it SM?