i think so too.

i honestly think if we push the boost up a little, 24-26psi, we should be able to see 425-450awhp on pumpgas. i'm gonna give it a try sometime next week. i gotta put the car back together today with the STG3 turbine wheel.

PM's sent

 

Sick kits..

Kevin

 

Is this turbo basically a dual-ballbearing version of "The Big Kahuna"?

If so, what effects would a .82 a/r turbine housing have compared to the .63 a/r turbine housing used in your tests?

Also, is the "p-trim" wheel the same as the "stg5" wheel?

 

you're good this is exactly that, a ballbearing "Big Kahuna"

the .82 a/r at this hp level would not be benificial imo, it would just move the powerband futher up in the rpms.

the P-trim wheel is actually much bigger than the stg5 wheel. the stg5 is a bit smaller than an O-trim turbine wheel.

on Friday, i threw in the STG3 version of this turbo, and have to say that it has a much better powerband for the factory cams. ~4k-7k, very steady hard pull to the top on the same boost pressure. the p-trim would be more suitable for a setup with big cams, running it up to ~8k, and looking for big #'s (700+awhp).

should be able to get the car on the dyno tomorrow night. i'm going to test the stg3 @ 22psi, for a direct comparison to the P-trim. then im gonna crank up the boost and see how much power can really be made on 91 octane pumpgas
i really think 425-450 awhp on just pump gas is possible....

 

Updates peak?

Kevin

 

WHat size downpipe is used for the t3-to4r?

what size v-band flange is used?

 

the PeakBoost kit comes standard with a full 3" ss downpipe.

the upper downpipe and lower downpipe are connected with a 3" vband

this makes the installation a snap. one thing we really work towards with all of our turbo systems is the easiest intall and removal possible.
with the PeakBoost system for the EVO, the manifold, wastegate, turbo, dumptube and upper downpipe are all assembled outside of the vehicle. once these parts are assembled, you just have to bolt the assembly on to the head...

i've had this kit off sooo many times, that i was actually able to install it in about an hour and a half.

 

Any updates.....

 

1 hour 1/2 to bolt on the head or 1 h 1/2 put the kid together and mount on the head ? J/K

Nice kit, any GT3071R or 76R result?

bump

 

Bump for an Update on TO4r Downpipe cost and availability.