just got tunned
Registered User
iTrader: (15)
Joined: Aug 2005
Posts: 12,522
From: Salinas, CA
Car Info: 1997 Acura Integra GS Sedan
iClub Silver Vendor
iTrader: (12)
Joined: Mar 2003
Posts: 8,228
From: 631 Railroad Ave. Fairfield, CA
Car Info: A Laptop
Generally a crack in the exhaust housing won't cause boost to drop like that.
Is your wastegate ported? An over-ported wastegate can cause this. A boost leak or a pre-turbo exhaust leak could also do it. Finally the stock boost control solenoid can become insufficient to run appropriate boost levels, especially if the wastegate was ported when it didn't need to be.
Thanks
Is your wastegate ported? An over-ported wastegate can cause this. A boost leak or a pre-turbo exhaust leak could also do it. Finally the stock boost control solenoid can become insufficient to run appropriate boost levels, especially if the wastegate was ported when it didn't need to be.
Thanks
Registered User
iTrader: (15)
Joined: Aug 2005
Posts: 12,522
From: Salinas, CA
Car Info: 1997 Acura Integra GS Sedan
a buddy of mine's sti had a crack in the exhaust housing, wouldn't hold more than 12 lbs, then he bought another one, cracked too, wouldn't hold more than 16 lbs...
Thread Starter
Registered User
iTrader: (4)
Joined: Jul 2006
Posts: 527
From: Oakland
Car Info: White 05 STI and Silver 05 FXT
i took of my turbo today at work and there its a big *** crack from the wastegate all they way around to the upippe part of the turbo. so its gunna go warranty. i am so happy
Thread Starter
Registered User
iTrader: (4)
Joined: Jul 2006
Posts: 527
From: Oakland
Car Info: White 05 STI and Silver 05 FXT
i have a 2005 STI with Helix catless TBE DP wrapped, Gruppe-s headers coated, Titek up-pipe coated, AP ver2, 255 fuel pump, GP moto silencer delete, After MAF hose, and a couple of other silicone hoses. so my first tune was all bad since i had a cracked turbo so i got the VF39 warrentyed. I went back today to GST. here are my numbers from the first tune compared to my tune today. base run is my first tune( on right12/6/07) and test run is today 12/20/07 on the left.
so with my new turbo i gained 23.1 whp and 28.4 FT-lbs torque. i can really feel the differance in the power then before when i had the cracked turbo. i am happy with everything that GST(mike and greg) has done for me to get my car to this point.
so with my new turbo i gained 23.1 whp and 28.4 FT-lbs torque. i can really feel the differance in the power then before when i had the cracked turbo. i am happy with everything that GST(mike and greg) has done for me to get my car to this point.
Former Sponsor
iTrader: (14)
Joined: Sep 2006
Posts: 3,246
From: Hayward, CA
Car Info: WRX, EVO, MSP3
Glad it all worked out for you Zak, makes a difference having a turbo that doesn't have a crack from the wastegate port all the way to the uppipe flange.
Mike
Mike
Thread
Thread Starter
Forum
Replies
Last Post
ryball
Sacramento & Reno
15
Dec 8, 2005 06:06 PM