Hello everyone. A few months ago i started to piece together a few items for a turbo upgrade. I am shooting for over 400whp with decent spool time.
Let me start off by listing the aftermarket supporting mods i have:
dejon intercooler piping
dejon SRI
synapse catless downpipe
crazysteve intercooler
Snow Performance stage 2 meth kit
Tuning is done by Ryan at P&P tuning with a Hptuners/trifecta tune

I recently acquired a Precision 5457 "50 trim" with aftermarket O2 housing, adapter, and oil lines for a VERY cheap price. This turbo has been handed down from Boostking to FF ACE to PT5457 to me. I currently have this set-up on the stock exhaust manifold. I have done some research on turbo upgrades with stock manifolds and i have come to the conclusion that the stock manifold does not flow efficiently for a larger turbo. Look at the facts. Badbaltguy (20g), Boostking (Precision 50 trim), FF ACE, PT5457 have all had upgraded turbos on the stock manifold and ALL have cited crappy spool times.

My findings are no different. I have shortened the wastegate rod as far as it will go and spool times have definitely got better but still not ideal. Pics and updates to follow

Stock turbo coming out


and this is what went in. Currently on 27psi and 2nd gear and 3rd gear are useless


turbo installed

 

in for updates/pics

 

lol that last pic is of it installed on my car. ya it wasnt spooling till around 4500 for me when i had it. glad you finally got that oil line you got shorted on from the other guy

 

yes the last pic is your car until i can get my own shot lol. It is spooling better now. I shortened the wastegate rod as far as it can go. Spool up starts at about 2500 RPMs now

 

well i guess you hinting at another exhaust manifold, which one you getting

 

well since my turbo has a DSM flange i am very limited. Only companys that offer an exhaust manifold with a DSM flange for a cobalt is Vulcan ($325) and Hahn ($499). Probably going with vulcan

 

pretty pricey but good stuff

 

$325 is pricey? is there a cheaper place for manifolds? Also I got the turbo/O2 housing/adapter/oil lines for $800 shipped so it evens out

 

depends on what your income is. highschool kid would consider it pricey i dunno maybe its the alcohol typing

 

haven't been in high school for some time I'm not the typical 18-20 year old cobat owner. Im an old fart lol

 

i sorta know what you mean, i make a good bit but it all goes toward tuition

 

oh i remember that time lol now it's more like wife/kid/mortage/3 cars lol

 

great thing Treadstone is coming out with a turbo manifold for our cars to run 50 trim turbos.

 

good stuff.. we should combine cobalts to make a super cobalt

 

yes but unfortunetly they will not make a DSM flanged exhaust manifold

 

Have you looked at Dejons website they have an adapter for about 230

 

thats what i have on now. It doesn't work that great. The stock manifold should NOT be used with a bigger turbo