I have an 05 5AT, right now my current mods are Nismo CAI, Unorthodox SS pulley set, motordyne 5/16" spacer, Megan headers and Invidia G200 exhaust.
I also have 5zigen hyper 5zr rims, toyo proxes t1r 245/35/19 in the front and 275/35/19 in the rear.

My question is with the Stillen stage 3 Supercharger, will I be pushing 400WHP? Also what kind of times would the car be running 1/4 mile. I want to get to 11.99. Is this feasable?

 

no you wont get close to 400whp and no you wont get in the 11,s with a stillen.i have a stage 4 that is 341whp amd thats about all you will get.but it does have a ton of torque right from the get go.if you want 11,s you better go twin turbo and get a valve body and torque convertor upgrade.i ran a 13.41 on stage 2 but still havent run it with stage 4 yet.and im an auto too.

 

With the stillen or any SC for that matter you'll have to remove the under drive crank pulley. And with the stillen you'll lose the plenum spacer, the stillen replaces the intake plenum. Also theres different opinions on weither or not headers are a good thing with a stillen kit. Your best bet would be a turbo kit or if you really want a SC get a vortech.

 

headers will rob your boost... so you loose hp. but, (and this is something i haven't seen yet) if you get a utec, you might be able to fix this...

the ud pulley will work against you, because you'll spin the sc pulley slower (just like the accessories that are being underdriven as well), which will lower your boost also.

 

SO, will I need a TT kit to get 400whp, I also heard that the TT kits are bad for auto's is this true? Besides the turbo kit, would I have to upgrade any of the stock internals?

 

Your 5AT will probably not last long at 400 WHP. Get a VB and TC upgrade at least. Call Level Ten or Forged Internals for more information.

 

what kind of tq are u making?

 

i cant find my dyno sheet anymore but im 100% sure it was 318rwt.

 

damn, the stillen makes more tq than vortech.

 

As I said before, the Stillen SC is a great kit for what it is. But to go anything over 340 rwhp, you will need to get it elsewhere.

We have done severall TT (JWT) kit installs on 5at's on G35's, 350's, and FX35's, built motors and stock, all starting at about 375whp and going up to 500whp.,no problems. It is a good idea to do a valve body upgrade.

 

The Stillen Stage 4 is pushing 341whp and 318 rwt on an AT...very nice and better than I thought, with the Stillen power curve on the low/mid end its gotta be a fun ride!

 

Those numbers are for the non rev up versions and corresponds to the stage3 rev up kit. I suspect when they release their stage 4 for the rev up, it should be about or over 350.

 

that is a lot of power... all i need is a newly designed hood.

 

one thing i noticed on the 07's, is the hood clearance is about 4 more inches higher around the battery (and brake fluid cover they remembered). it might be easier to sell them on a s/c than us.

 

Any word on Stillen and the new sedans 07-08's for their SC?