Cobalt Racer

I'm also interested in know'n where this setup would leave tha 2.2 auto LT balts. If this setup works (without future damage), then I'll grab that setup. But I'm not willing to increase performance if trans or something else fails or need replaced in near future. Not worth tha trouble, imo.

BlackBoltSS28

When are they going to come out with the software for the auto trannys. Who is trying to make it?

sanger11

tranny cooler, which one is everyone using and why?

yellowltcoupe22

hp tuners is supposedly working on the auto tune but i hear they've been saying the tune will be out for it soon for a year now so nobody really knows for sure if they are going to actually ever make the tune or not..

im not sure which one everybody has been using but if your going to try to turbo an auto balt then you will need one to keep the trans cooled down from the clutches in the trans slipping cuz there isn't any tune for the auto to adjust the the shift points and the way it shifts with more hp..

Halfcent

There is a great deal is misinformation and assumption going on here. Let me clarify. HPTuners does in fact already support tuning for the General Motors TCM (trans control module) model T42. They do not have support of the ECM (engine control module) model E16. The problem is that you can not tune the TCM directly. It has to be done through the ECM. Since HPTuners doesn't support the ECM, you can't tune the TCM either.

Trans fluid coolers are very common, simple devices. A well known brand is B&M. They are used to help with the added heat load imposed on the trans due to the extra power. Most of that heat is generated by your torque converter during acceleration.

yellowltcoupe22

well correct me if im wrong but the trans is gonna slip some under boost during normal driving conditions cuz you can't program the tcm for increased line pressure for the add hp from boost and i may be wrong bout this to but i would think that any time it slips it would cause more heat to be produced. your right bout the torque converter generating more heat but i just think my theory woul be correct to though. as i said correct me if im wrong. i dont want to be givin stupid and incorrect info to others.. by the way halfcent did you ever turbo your auto 2.2?

mkulrey13

iTrader: (39)

Thats what the shift PLus kit is used for, increases the line pressure and makes your shifts instant. Please search this topic my buddy has this installed and works wonders.

yellowltcoupe22

yea i've heard it would help but would probably not completly fix the problem if it was boosted though..

Halfcent

Yes, clutch pack slippage will generate friction heat. But that only occurs during the shift. Once it's in gear, there is no slip. The largest heat source remains the converter.

The Shiftplus unit will increase the shift pressures, which lessens the slipping. But there are additional factors that a flash tune can do. Like modify the shift points (when it shifts), and you can remove certain limiting factors like torque limiters.

I have not turbo'ed my car yet. I still wish to. There are many factors that have stopped me from going forward for now, but they are not permanent.

yellowltcoupe22

im thinking really hard about turboin mine im just worried about the long term on the trans and dont want to get all that done just to have to turn around and buy new trans all the time cuz i would just take the kit off and get rid of it.. i was hopin that i could find some one on here that has done it wnd find out how its held up so far but it looks like i may end up havin to be the risk taker and try it out myself..

yellowltcoupe22

halfcent how sure are you that the tuning from the garrett alpha kit will work on the 2.2 auto? im thinkin very serious about gettin the turbo after taxes..

dbzman087

Ya, i gave up on waiting for a tune and traded my cobalt in last friday for a 04 srt-4

yellowltcoupe22

yeah my buddy has a 03 srt-4 that slung a rod a while back and i've tryed to get him to come off of it but he's bout to fix it and start drivin it again.. lol i was tryin to get it cheap..

Mr.N00bLaR

iTrader: (7)

It would work on both auto and manual trans, just for the engine. (..right?)

yellowltcoupe22

nobody has been able to give me a straight answer on that yet... im hopin to get a good answer to that pretty soon..

mkulrey13

iTrader: (39)

err. the alpha kit WILL work on your auto balt. The tune thats included is for MOTOR only. WIll not affect your tranny. Like i posted in another thread, get a tranny cooler and B&M shift+ and you will be fine.

yellowltcoupe22

thanks man.. that just answered alot of peoples questions bout that..