so my car is currently turbo swapped. yes its fun, 25 psi on a s20g. but, its not enough for me. yes I know its a cobalt and I should buy something better yada yada yada. I love the car and I really want to improve on it. so here are the plans so far.

M62 with 15psi wastegate actuator to open the bypass valve when the turbo gets spooled up

stock head

stock pulley

stock intake manifold possibly removing the Lumina cores

custom turbo mani

80lb injectors

PTE 6262 JB 3" inlet 2" outlet a/r .83 with 3" vband, using ebay special for test purposes.

3" vband Hahn catless DP

3" Hahn catback

LDK or LHU block

solid lash adjusters with custom cams debating on how mr b results turn out.

DBS or NBS

dual stock heat exchangers

meth

tr12 intercooler

and a unselected set of pistons and rods.


hate away. im still gathering parts and continuing to do research. I know twin charged its a waste yada yada yada . its happening.

 

Why staying stock pulley? Guess you dont wanna blow the tires off too bad? Haha. Good luck fitting three intercoolers! Should be a beast

 

well with all the threads ive read stock or larger pulley is preferred. the goal is to make a hill climb beast. I hate being in the same class as 800+whp cars :/. I think the class system here is retarded. I mainly just want the sc to help me not fall out of boost while cornering

 

also I had the stock h/e, condenser and the Hahn FMIC with no issue so im sure the two h/e and the tr12 will be fine

 

Sounds badass

 

Strap a ko4 in front of that 6262 instead

 

I was actually debating on a compound turbo setup for awhile but, honestly this will be easier to do and cheaper since I pretty much already have a full sc kit. I'm also looking into gutting the intake manifold and not running the water to air system since ill be running meth and the sc will only be making heat when the turbo isn't spooled.

 

Compound>twincharge
Your in for an absolute tuning nightmare either way though
Seems like your overall setup would be less complicated with a couple inline turbos and 1 intercooler

 

ditch the ls4 its not gonna be needed

 

I really don't see it as too much of a tuning nightmare. The turbo and the supercharger wont be controlled by the tune. Unlike most the previous setups were they used the stock actuator for the sc the scs bypass valve which pop after too much boost.

And mr. B I know its not needed, im probably not even gonna port the sc. Or mess with the head right away.

 

Sub'd
Been doing massive amounts of research on doing this for a while now.

 

well im going to start by pulling the current motor down and replacing the rings. then im gonna slap a t3/t4 on it. since I have a few from pulling them off of Hondas ive gotten. mainly to figure out how im gonna run the dump tube and all the charge piping and test if I can get rid of the water to air for meth before I put, the built motor in. poor lsj guinea pig. ill be getting the sc kit here in a few weeks and that's when the fun should start.

 

where is all the flaming? lol

 

I wanting to see it done! I was never around back in the day when zzp sold the kits.

 

I think the benefit will actually be seen when using a turbo big enough to make it worth it. unlike with the kits. I mean its been done ddmworks made a 700whp twincharged lsj atom. and zzp had a good number of high horsepower ones.

 

People ask Smitbag: Why not lsj-t ?

His reply: becuz you can have both lol

In for results and the ***** to the wall attitude lol

 

Rename the thread
Noone knows whats going on in here with that weird thread title

 

changed the title. And with your compound setup were would I fit the turbos since its a pita just getting my 20g mounted up. I'd imagine trying to squeeze a 6262 and a ko4 would be an absolute pita. I'd probably have to cut away the firewall. And yes I know there has been a compound turbo solstice that put down 800 whp. I dont have the same room as the solstice. He didn't even use a ko4.

 

Yeah he used a 2867 i think which is good for almost 400 by itself lol

 

Yes he used a gt28 and a gt42

 

I dont think its actually ever been done in a cobalt
Even though i have no idea what im talking about my first thought would be to put one in behind the motor and one beside it where the fuse box normally would be

 

Yeah youd pretty much have to have a fusebox relocate. If someone made a wrap around manifold itd be dope to put a gt45 right there

 

See twin charging would be much easier. Even though id love to move the fuse box and put a turbo there for a hood exit

 

any update on this?

 

Yeah i hope op didnt give up