Goal is about 400 to 450 at the tire. Hi 10s with no spray or what ever it takes to get there. So that means I will be pulling the engine out this weekend. The transmission was one thing I was wondering about but I do have a 4t65 to take its place. Not sure might be good for business to modify the stocker. Aftermarket engine management appers to be a must for the level I want to run. Guess I can piggy back the stock ECU so I dont give up all the street manners. Seems that the blower or the aftermarkets wont be enough so Looks like I might need a turbo to get it done. You guys might think I am crazy but I think hi to mid 10s can be done in this car and still drive it with no downsides. Its 700lb lighter than my buick. I am very tired of seeing the imports do it. I have tuned many of them trust me they are spending big to run the numbers.

 

whats everyone's take on spraying these things? I don't think it's a bad adder for 500 bucks for a nice kit and a safe 75 shot .

I also think that AEM needs to get on the wagon and start dishing out some EMS's for these lil guys .

 

talk to victory_ss he is the middle of doing a major project with a twin turbo setup

 

No one has ever used aftermarket engine management on these cars? Give me the blower to make the power. I will get it tuned.

Its all about moving air. You can use boost if the blower will go that hi or if the blower maintain the same manifold pressure you can rev the **** out of engine. Both will make HP gains.

 

you sound like me before i bought my cobalt i had it all planned out but i guarantee your plans change once new stuff comes out (blower swap, turbo, people running high 11's) **** by the summer you might decide you want a used mach 1 (if i could do it over again thats what id be in)

 

first off i never said anything about tuning... second off, im not counting my chickens but Tag is working on the twinscrew swap and has at least 5 downpayments of somethin like $1500 each. third... its not a whipple .. fourth -- there really isnt any need for the sarcasm jus cuz someone disagrees with you-- he said it himself hes looking for 400-450 at the wheels.. do that reliably with the stock blower...

and he can turbo.. now that aint no damn "dream"

but in the mean time.. ill keep dreamin about that the whipple fairy hopefully leaves me a special twinscrew nickel under my pillow tonight

if he does all the supporting mods first.. by that time hopefully the twinscrew will be out.. and **** the tag turbo kit is in production as we speak...

 

LOL , I think we all have that problem . You tell yourself ok I'm gonna save up for stg4 then like a week later a freakin turbo kit from hahn racecraft comes out . so then you say ok I'll turbo it and it will be sick , then someones like oh hey I made 5000000000 hp with cams , a head and spray . aaaaaaaaahhhhhhhh **** it I'm buyin a back halfed race car !

 

Yeah, I would say turbo would be the way, The twin screw swap would be at its limits to do that.....swaping to a built 4t65 would probally be cheaper than building the F35 and will be way more reliable. Talk to Jim@TagRacecraft about a turbo swap, he is a vendor here, and I believe he even has a cobalt in the shop getting a turbo put on it...
To build this engine to about 600hp, you wont need to change a whole lot but once you past that mark, lots of the internals will need to be changed.....things will start getting a whole lot more expensive....

Here our some links, I believe you can buy these build books too......
http://www.gm.com/company/gmtunersou...build_book.htm
http://www.gmperformancedivision.com..._articles.aspx

Good Luck and once you are done.....we will NEED pics and videos, eh??

 

Anyone know much about the M90 off the 3800 cars. I have one here that looks like I could adapt to fit my 2.0. I have seen the GTPs in the low 12s.

 

Bates makes two sets of springs, neither of which I would upgrade to. The first are single coils that are good to up to 7500 rpm, not much of an improvement for the effort invovled. The Bates dual coils need to be run with solid lifters. Go either Ferrea or Supertech imo.

 

STAY AWAY! if you want to stay s/c and make lots of power.....Go with the 1200ax swap that TAG racecraft is making

https://www.cobaltss.net/forums/tag-racecraft-132/official-blower-interst-thread-40808/

 

You will have a $40,000 econobox when you are done, but with a lot of money I am sure you can hit the 10's. I doubt it will be very streetable though. You will have to have huge fuel injecters, and I have heard that the 60lbers are barely streetable as it is. I thing you will need bigger than that to create that kind of power. I belive even a new crankshaft too, one of the redline guys snaped his in two on his second or third pull on the dyno. He was putting down a little less then 400hp at the wheels. Good luck though.

 

A new crankshaft?? The stock LSJ Forged crank is good for about 600hp(same with the rods), it is very Strong....their must have been an explanation for that redline guy, cause there is no way that it should break with less than 400whp.....

The car should still be streetable with those power numbers but it won't be like driving a stock 200hp FWD car, It will be like driving a 400-500+HP FWD monster but it will still be streetable....

 

Actully I don't think our stock crankshaft is good to 600hp, but that is my opinion. And have you ever drove a 10second fwd car on the street. Not a daily driver by a long shot. A 10 second cobalt is possable, but reliabilty to drive on the street I think not. He would be braking **** left and right. Also hope he does not have emision laws in Ohio, would never be able to regesister it. This all IMO, will not be able to convence me otherwise.

 

first, I doubt he will see 10s with only 400-500whp but it could happen....there is a guy on HIC mag(Jason Whitifield) that built a 1000whp cobalt thats running 9s and this is a qoute from the mag "He was quick to tell us that this car is not a regular car but that he is building a streetcar. He said that if he feels the urge to have an In-N-Out burger, he may just jump in the cobalt, run down the street and drive through to pick up his meal. The car will have an entire factory interior, and it will start and run just like a regular car. The one big differance is that when Whitfield cranks the starter, it will fire to life over 1000hp (to the wheels) and be capable of running 9s in the quarter mile."

Their are many SRT4s, STi's, EVO's, etc... pushing over 500whp and they are daily drivers.... I have driven in a few fast cars that are driven all summer long: 10s Camaro w/ 383 stroker... ; 11s Mustang with built 351(he has a new cam and did some head work, he is hoping to get 10s this year, he also has a Pinto drag car that runs 9s but it isnt street legal) I havnt driving in a FWD with those power levels but my friend with the stang knows a guy at this performance shop that has a SRT4 that dynoed a little over 500hp and is running low 11s, he also drives it to work everyday.

I am not tring to start a flame war.... I am just tring to point out the facts.

 

Aftermarket engine management fixes all injector and other tuning issues. The 2.0 can make the power and I believe it can be done in a street car. The only grey area is the transmission. I am not sure the 4T65 will fit in the cobalt format. cant seem to find anything on the NA cobalt automatics. If they use the 4T60 the 65 will fit. If I need to use a turbo the automatic will be a better choice. I am also now considering spray. Build the car with the 62 blower and spray it to get where I need to go. I have had turbo cars for years and they have thier issues too. With nitrous the car could be even much more streetable and I could leave the stick in the car. From what I read you can get to 300 with the 62 maybe a little more. I know I can spray 100 or more to the car. 400 450 can be done it seems to me. Would be nice if I can adapt the m90 as it looks to supply enough air for 400 then spray it. Who knows at this point its all ideas. Engine is coming out of car today with now 147 miles on the clock. The car is so fun to drive I almost hate to do it.

 

If you want a blower swap, I would stay away from the M90, Look into the 1200ax Twin Screw swap Tag is making....I posted a link on Post 36....Check it out, They will also make a Turbo kit for you if you want.....lots of the guys making +/-300whp with the M62 are having problems keeping AIT down, They have to run LOTS of water and meth to do so....The Twin Screw is way efficent than the Roots type blowers.....
1200ax = 350-400+whp without spray

 

hey stangkiller why dont you give me some money so i can race too

 

When you stop spending your money on that sexy stuff in your sig you can afford to do it yourself.

 

I'm guessing around 260whp with those mods on GM tune, pistons probably will hold up a little further north of 300whp but who wants to explore the limits.


why would you buy new tires already when the stock ones are already dope? thats why you cant afford to race, you buy stuff you dont need, hahaha no offense