Traitor... that was GM for putting an s/c on a 4 banger. (an originally t/c'd motor btw) and don't you worry those s/c badges are already gone my friend.

hopefully I can drive my car again one of these days. Starting to hate the monte and it;s 8-10 mpg

 

Garrett GT2871R suits the Cobalt 2.0L quite nicely. Fast spool times, and great top end for the power range you are shooting for.

 

that is your answer

 

Thats what ill be using a GT2871R and hoping for about 350WHP. Anyone got pics of where to drill the oil pan for the oil lines for the turbo??

 

I would also like to find out where to drill in the oil pan. Thats pretty much the hardest part of the install in my opinion.

 

****, i wish that was the hardest part of the install.If your putting together a custom kit,the oil return is cake.lol.

 

Oil return is already available to you. I'm hoping the hardest part of my install is this week. I'm hoping to be able to order my coolant and oil lines on monday, then it's just putting it all together and tuning it to kick ass!

 

If your going for mid 300s on pump gas the 2871 is a great choice. If you want more go bigger...and prob have to tear into the motor.

 

way harder then you think.

any i already ran across a flaw in the system.

 

LOL thats an understatment...there is so many flaws in the stock ECU its amazing the car runs at all once you mod it. Like the 2 bar VE table for example

 

do you care to elaborate.......please??

 

dan we need to either do a full OS re-write or go open loop stand alone...i'm getting tired of this dam thing.

 

Im ordering that sensor today. Let me try the OLSD setup and see how it works.

BTW head is done...rebuild this weekend hopefully

 

good to see the machine shop finally got her done.

PM'd

 

is the Precision SC50 good for 350 to 370whp?

 

for the guys that are currently running a turbo did you do any modifications to the fuel system??

 

Highly suggest you invest in an LSD before going over 300whp

 

really not needed

Tho when i get full boost on the slightest corner in 1,2,or 3 it just spins the inside tire lol

 

Eh you're right but would help drastically in a drag race and any other racing.

 

Ill ask again, is the sc50 good for 350 to 370whp without overboosting the *****.

 

LJ, I think the honda guys are using the SC50 and getting those numbers and more on their 1.8L's. I found that on the Honda-Tech forums since I have a 16G turbo'd Integra. The SRT-4 guys are getting 400whp+ from their .50trim on 22psi.

 

just ****** look it up....

any and all manufactures will give a HP range per turbo....and then graph you car out with PR and CFM on the compressor graph and see what eff% island you fall into...move your boost number around untill you hit max/high eff% and go from there.

take the power you want at the wheels, factor in drive train loss and see if that number is with in manufacturers range....

if the turbo will make the number you want then you have a turbo pick and you know what boost number you'll have to run for a base line

dont ask, do the research and you'll have all the answer you want.

 

+1...I know I spent 2 weeks researching my turbo and 06black has more time then me into his choice. Both our turbos drive exactly the way we predicted thru the charts and numbers

 

tis true guys. I for one am just using a smaller turbo for now to get the tuning bugs worked out, well that is if I ever get my car back this year lol.

 

Please don't complain The '73 GMC I've been driving gets 6-7 mpg.... if the planets are aligned properly

I'm also getting sick of you guys ***** footin around! Once I get a '03-'04 Cobra, I'm seriously thinkin about throwing a GT35R on my car, just for ***** and giggles (I'd never ever drive it again duh to stupid amounts of lag, but it would have 650 whp! )