Thanks to Mike and the guys at Gruppe-S, my car is done for the time being.

05 STi, helix catted dp, borla hush, borla header, walbro fuel pump, k&n panel filter, utec

272hp
300tq


Stoked w/ their work and the tune...now it's time to spend my $$$$ on track time.

 

do they use dynamics or dyno jet?

 

Gruppe-S has a mustang dyno

 

great #'s alan

-preston

 

Congrats Alan.

Hey Preston, I hear you have some pretty decent numbers too..

Mike

 

Congradulations, good numbers, what RPM is your torque peak?

I'm 322 ft-lbs at 3750

 

3750.

Mike

 

Yup, sure do. I was amazed to be honest. I will go scan the dyno chart right now

 

thats awesome numbers for a stock turbo, great job glad they got u sorted out cause when i left it was late already and mike still had your car to tune, compare your numbers to that poorboy bolt on garret turbo in the sacramento forums once agian good job

https://www.i-club.com/forums/showth...1&page=7&pp=20

 

to be fair, we are still at 16.5 psi on the top end

should be over 300 once its turned up to 22-24

 

(atc5) Alan's car was running 17.5 psi taper down to 13.5 up top..... I guess is not fair by a STOCK turbo and 1 more psi ...

 

i guess the headers make a HUGE difference

 

difference being that the GT30 is below its efficiency where as the VF39 is in the middle of it

when we have the turbo running where it needs to be, there will be a lot better numbers coming from the setup

 

I remember a wrx with the stock 2.0 engine and a GT30 making 270ish untuned...on a dyno dynamics dyno... at 17psi... But I guess it's a different beast...


I think Krinkov made near 340whp at 18psi... I believe it was on a GT30 turbo also...

 

true..

honestly its rather useless to argue about "what if..." and "when we ..."

when the car runs like it should be, and it will, there will be new numbers and dyno sheets posted

until then, no use arguing about what "this turbo" should be doing or "this setup" is better then "that setup"