hey my fellow evo enthusiast,
I have a 2004 evo8 gsr and soon about to install my evo9 turbo.I was wondering what numbers to expect with my upgrades already on the car after installing the 9 turbo and get retune.this is my short list of upgrades:

Megan Racing 3" TBE
Helix 02 housing
walbro 255
Licp
K&N intake
evoIX bov
SMC meth kit
competition 6 puck clutch
hallman mbc

The reason for me asking this is simplly because when i take my car for the retune i don't wanna hear no excuses from the tuner just need the car to make what it should i know alot factors can affect this but atleast i will get an idea.also my car is still pretty new with only 48k miles.I will be happy with 360whp thank you guys for your response.

 

Maybe 10-20whp more than you have on the stock 8 turbo.

 

well i will be tuning to ard 27 to 28 psi on 93 so if i can reach 350-360 will be cool.

 

360 is possible with the 9 turbo, but not with your mod list, & not reliably. You would have to really crank up the boost on that little turbo to hit that power on pump gas. More than likely, you'd have to switch to E85 to make it happen. Make plans to buy cams to get more power next.. The way your car sits now, I'd be happy if you honestly crack 300 on a mustang dyno...maybe 310 on a good day.

Edit: do keep in mind, a stock Evo 8 dyno's with about ~225hp at the wheels. So expecting a 130+HP gain with your mods + 9 turbo is honestly, unreasonable & wishful thinking.

 

it made 300 whp and 317tq on the 8 turbo and we had some boost problems on the dyno so hope something good can come out of this.

 

With cams you can hit 360 without a problem.

 

How much boost are u running on your current setup? Must be a pretty aggressive tune to make that much power with so little mods.. Would u happen to have a dyno chart? I'd be interested to see your powerband.

 

He has a meth kit which makes the pump gas a little better. do you run 50% meth? Id think if you were at 300 you should be around 320-330. What kind of pump gas? 91 or 93?
I have similar mods with a IX and I make around 340. Without meth. So idk.

 

tune was on 93 octane, i am using straight meth m1, the only thing i will me missing is cams but i can't do that until i have extra cash in my pocket.

 

On E85 and 30 psi i did 386whp on a mustang dyno, so over 400 on a regular dyno

 

hey i didn't retune yet, did u make that # with or without cams?

 

You're in NY. Why don't you just take it to STM? Your number will be guaranteed the best from what you have and you won't get "excuses".