Added el header and 73mm intake lost power
 

2007 sti
engine mods-
gtx3071r
process west tmic
dynamics 1000cc injectors
3in turbo inlet hose
255 walbro fuel pump
invidia bellmouth catless dp

BEFORE-------------------AFTER-
38mm ewg---------------44mm ewg
eq uppipe ----------------tomei uppipe
AEM cai-------------------tomei el header
----------------------------kstech 73mm big MAF
------------------------------------------------
330whp 320whp

compression leak down test was good.
tuned by EQ. Ed said when he turned up the boost it would knock. Up the timing it would knock. knock sensor might be bad.

Does anyone have any ideas of whats going on with my car.

What about going back to the 38mm wastegate?

I don't think that would effect peak power. On that note my old ewg was on the uppipe and now its on the turbo. But I still don't think that would change anything

Find a new tuner

How could you ask us what your problem is if we don't know any history on your car. Your tuner didn't seem to even be any help.

[QUOTE=awdorgtfo;3517104]Find a new tuner

How could you ask us what your problem is if we don't know any history on your car. Your tuner didn't seem to even be any help.[/QUOTE]


I thought I gave enough of the history above. What else is power related?
The car was running top notch before the installation. The only things that have changed are the parts listed above. The motor was built a year and a half ago. The motor is good. Most sensors have not been changed.

The car still runs good just less hp.

I was hoping someone else has had the same problem and had it fixed.

Did you retune?

[QUOTE=Heedz;3517708]Did you retune?[/QUOTE]

and were both tunes by Ed? if you are comparing 2 numbers on different dynos this thread is useless

did you retune????? im sure ed would have help you figure it out if you would have asked him

ya it was retuned. He had to detune it cuz it was knocking. In the last few days ive noticed it hesitating from time to time. So im thinking its the knock sensor, I hope. Has anyone here ever had their knock sensor go out on them?
Thank you for your input

[QUOTE=bmxhotsauce;3517734] im sure ed would have help you figure it out if you would have asked him[/QUOTE]

I talked to him. He said he wasn't 100% sure on what the problem is. He said it could be the sensor (not his exact words). I figured someone out there has had this problem and would know what to do. To save me time and money.

Go to a different tuner? Never a good thing when your tuner has no idea why your making less power or why it's not running correct.

Lol cause it was knocking LOLs

Smh...

I would check out the knock sensor & make sure you have good gas in the car. Is that on 91oct?

Ask Mike @ GST Motorsports and he's having a tuning special for Memorial Day! Yay!