Alright guys, I need some answers plz. I've got a friend who has a Cobalt SS/SC. I believe his current mods are a 2.7 pulley, 60lbs fuel injectors, fuel exhaust, and drag radials, and a STS. He is about to get the Intense Stage 3 kit, and when he does, he is getting a good tune on it. Now from what he is saying, he will be in the mid to high 12's. Now he can drive good, but I just don't see him making a 12 second pass. He thinks just because he read it somewhere, he'll do it. Now from ym understanding, one of the fastest street Cobalts to date is on here and has like a 12.8 with I believe Stage 5 and meth injection opr some ****. I haven't reasearched yet, only trying to get answers quick! Well, I'm creating this thread for him to read from Cobalt owners who know a good deal about the car. Aside from that, he is in an arguement with another friend who also ons an SRT-4. These two argue over who will win when they have their mods on that are in the mail. A stage 2 non turbo toys SRT-4, with a downpipe, bov, open airbox, waste gate, and radials, vs. the cobalt with the full exhaust, intense stage 3, 2.7 pulley (might be a smaller pulley with the intense kit), 60lbs injectors, drag radials, sts, and a good tune. He claims he will kill the SRT-4 from a 40 roll. Sorry for the the essay of a post, but maybe you guys can help. Like I said, I plan on showing him this thread.

 

Well with a 2.5" pulley and a great tune with his supporting mods, a high 12 second pass will be possible. Axles and clutch are questionable though for sure.

 

if he has 2.7 and 60's intense stage 3 would be a step down.

 

Thanks a lot for the quick replies guys. i see 17 views on the thread but nobody is giving input. His clutch is slipping pretty bad, but I'm sure he will replace it. I've got sick vids of his car racing the SRT-4 and other cars, but I can't find my fire wire or my USB cord :/. Try and find it so I can post up the vids.

Do you guys think he has a chance against that SRT-4 that I mentioned in the first place?

 

Im guessing if he's a good driver mid 13;s with a 2.7 and 60's with DR's

 

Is that guy running the AGP wastegate and does he have Mopar Stage 1 tune? I need more specific before I answer that question.

 

On the intense site it says that they had a cobalt with the Stage 3, a belt tensioner, and corsa exhaust( I believe) and it ran a 12.9

 

My friend has a stage II SRT-4 with the same mods, not a bigger turbo but the other stuff. He only ran a 13.7 because of traction probs. The cobalt deff. could hit into the 12s with good traction. Traction is key, whoever gets better traction is going to win IMO.

 

I don't believe he will beat a stage 2 SRT with bolt ons. He really has no chance in hell lol.

 

I loose to my buddies SRT-4 with Mopar Stage 1 ECU, full TBE, AGP wastegate, and AEM intake by 2-3 car with all my mods just as a reference.

 

He will hit mid-low 13's if he can drive it good. The Cobalt is very difficult to drive from a dig do to horrible wheel hop. Especially if he doesn't have a torque brace or trans/motor mounts.

The best we have had in AZ is 13.8 and that was with GM Stage 2, 2.8 pulley, and CAI. Another Cobalt with LSD, Ingalls ETD, K&N CAI, 2.6", 60# inj., Pacesetter coated header, full 3" mandrel bent catless exhaust, Dual pass IC, additional HE, and custom tune was hitting 14.0-14.1 @ 108 because of lack of traction.

 

Once again thank you guys for the quick replies. Both cars will have drag radials. The SRT-4 will again have Stage 2/No Toys, BOV, Waste Gate, and a downpipe. The Cobalt will have Intense Stage 3, 2.7 (maybe even 2.6) pulley, 60lbs injectors, full exhaust, short throw shifter, and a good tune. The Cobalt ownr says he will make a mid to high 12 second pass, and will kill the SRT-4 from a 35 roll on the street. (For reference, in 2nd gear at 35mph, the SRT-4 is sitting in the begining of its powerband, hits boost instantly, and then has all 3rd gear and 4th gear for power gears).

 

From a 40mph roll it might be interesting. This puts the cobalt in 2nd gear as well and we can pull all the way to 7 grand while you guys have to shift. 3rd gear will bring us up to about 110 and pull for us as well. That could get him ahead, and keep him there if he can drive. I would be interested to see the videos either way.

 

I ran a 13.6 @ 105 on streettires, with a 2.7 and 42.5lb injectors, and some other junk, low 13s possible high 12s with meth, clutchflywheel, and no wheel hop. and traction bars.

 

Yeah it should be a good race, but a stage 2 SRT-4 is no slouch. Lately, with the current setups on both cars, the Cobalt will win a little more often than the SRT-4. The SRT is so quick to throw an overboost code, lol. Pulls timing like crazy. Quick question, is there anyway my friend would be able to check CEL's on his Balt? Every now and then his check ngine light will come on, but he doesn't know how to check to see what CEL it is.

 

Code reader, or hp tuners.

 

No possible way to read CEL's with a stocker? :/

 

There is a DTC code list sticky inthe general cobalt forum to mathc up his code once he pulls it. I know when my CEL comes on, that the just loves to pull timing quickly.

 

i dont understand why you keep saying stage 3 and 60 lb injectors with a 2.7 stage 3 is 42.5 lb injectors with a 3.0 pulley so which is he gonna be running stage 3 injectors or the 60 lbers and what tune i think its gonna be VERY stupid of him to plug a stage 3 tune in with 60 lbers but what do i know

 

Depending on drivers and speeds, will be the deciding factor in all of this. I raced an SRT with Stg2, BOV, intake and exhaust, I think that was it. I had GM Stg2, 2.79 pulley, one step colder plugs, and Injen CAI and I would have him by about a car and that's it..From 40 is our strong point, I would drop her in 2nd and jump on him a bit an then creep ever so slightly till I got about a half car to a car on him and that was it..Same outcome from a dig also. With a quick run on my Interceptor Gauge, it showed me doin the quarter at about 13.7. Sooo..I think with those mods, and a good tune, he should be hittin low 13's maybe high 12's with the DR's IF he doesn't snap an axle, or burn-up the clutch

 

The clutch is almost toast now, lol.

I explained it like 3 times. He is keeping his smaller pulley and biiger injecotrs for more boost. He has full exhaust with some sticky rubber and a short throw shifter. He wants to get the Intense Stage 3 for tuning purposes. There are many people on these boards who buy stage kits and upgrade to smaller pullies and bigger injectors. Smaller pulley = More Boost. Need more fuel to run more boost safely, so the big fuel injecotrs are used then.

 

In that case, if he doesn't replace the clutch before-hand, then he might as well hand the win right over.

 

Yeah running crazy speeds like that was fun as hell!!! ... I mean wow that guy is fast

 

Don't take this the wrong way, but the reason people keep bringing the tuning issue up is that the PCM needs proper tuning to get the 60's to work correctly. To swap to 42's is fairly easy because the PCM is setup for that size injectors (but does require a tune). The 60's on the other hand need the MAF tables altered because the PCM isn't preprogramed to run anything other than 34# and 42# injectors. It makes a significant difference.

 

SRT4 will win. those cars are just stupid fast. What i like to refer to as the poor mans super car. Takes very little money to make em 12 second cars. Get it on camera or something and then put it on youtube, it might be close. I dont want any of that gey **** where you tell a story of the race because its always embellished