On a second thought, if you have this much money to build your car, considering either selling it for a 6MT or doing a 5AT>6MT conversion.

 

what about it i Upgrade the Auto Tran like add Valve body + Troq converter

i think sound like okay what you think

 

Not for the power levels you are looking for cause youll need a fully built trans.

 

What I have read b4 those things can handle 600whp

And I want to know water Meath / injection is it good to fix for twin turbo or not needed

 

A built tranny is a definite must for anything over 400whp IMO. Still wouldn't trust it at 600whp.

 

My 5AT has been holding up fine in the low 500s wtq/whp going past 25k miles now. Fully built by GTM though. I don't think you can get to 600 whp easily on a 3.5L motor with either of those turbo kits on pump gas on a 5AT. Drivetrain loss is 20% vs 15% for an MT. A 5AT is faster though, especially with FI.

 

Correction, I wouldn't trust it at 600whp, even 500whp, doing track days every 2-3 months along with daily driving putting 15k on the car in a year. Road racing puts tremendous stress on your car and with two turbos..so much heat is generated. If you don't plan on road racing you'd be fine but no matter who built the transmission I would never do it again. The parts I had were no different than GTM's, and it was fully built. Huge cooler, valve body, clutch packs, brake band..it couldn't take the stress.

 

okay Guy if i want to GO for 6 speed Tran, what i need to change?

where i can found 6 speed dash decor inside the car cuz i tried to find 2005 only i got 2003-2004 and for 6speed stock tran how much i can run WHP ?

coupe http://picasaweb.google.com/lh/photo...UoRevmzOntbIyQ

 

Over 1000whp on the stock trans, if you want to know what you need search Canadian has a thread on his conversion.