Added el header and 73mm intake lost power
Thread Starter
Registered User
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Joined: Jun 2011
Posts: 417
From: Concord, CA
Car Info: Flared 2007 STI, EQ built and tuned
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.
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.
Last edited by calitmax; May 10, 2014 at 08:10 PM.
Thread Starter
Registered User
iTrader: (5)
Joined: Jun 2011
Posts: 417
From: Concord, CA
Car Info: Flared 2007 STI, EQ built and tuned
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
Thread Starter
Registered User
iTrader: (5)
Joined: Jun 2011
Posts: 417
From: Concord, CA
Car Info: Flared 2007 STI, EQ built and tuned
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.
Thread Starter
Registered User
iTrader: (5)
Joined: Jun 2011
Posts: 417
From: Concord, CA
Car Info: Flared 2007 STI, EQ built and tuned
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
Thank you for your input
Thread Starter
Registered User
iTrader: (5)
Joined: Jun 2011
Posts: 417
From: Concord, CA
Car Info: Flared 2007 STI, EQ built and tuned
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.
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From: brentwood CA
Car Info: 2015 SWP WRX
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.
Last edited by subi4justin; May 15, 2014 at 09:09 PM.
