Does a Catless up pipe shorten turbo life
Guest
Posts: n/a
I am thinking of adding a Helix up pipe to my WRX ’04.
Does the cat in the factory up pipe protect the turbo in any way? I’m thinking flames and such flashing off of the exhaust valves might shorten the turbo life expectancy. I would like the added power and maybe spool up with this up pipe mod, but I don’t want to replace my stock turbo prior to its time.
Am I thinking about this too much, or what?
Thanks for the help!
Does the cat in the factory up pipe protect the turbo in any way? I’m thinking flames and such flashing off of the exhaust valves might shorten the turbo life expectancy. I would like the added power and maybe spool up with this up pipe mod, but I don’t want to replace my stock turbo prior to its time.
Am I thinking about this too much, or what?
Thanks for the help!
VIP Member
iTrader: (9)
Joined: Nov 2002
Posts: 3,928
From: ...a craphole in No.County San Diego
Car Info: MMVI AW WRX STI
No, that's resetting the ECU.
At least on 02/03's, you need two "CEL fixes" when messing with exhaust components. One is a 2.2k ohm/0.5W resistor for the EGT sensor in the uppipe, and the other is a splice in fix for the rear O2 sensor to prevent "Cat Inefficiency" trouble codes from being thrown.
At least on 02/03's, you need two "CEL fixes" when messing with exhaust components. One is a 2.2k ohm/0.5W resistor for the EGT sensor in the uppipe, and the other is a splice in fix for the rear O2 sensor to prevent "Cat Inefficiency" trouble codes from being thrown.
If anything, the catless up pipe will lengthen the turbo. The cat produces so much heat that is actually hard on the turbo. Also if anything was to break from inside the cat, it would go straight into the turbo and ruin it. Definitely buy the up pipe!
Guest
Posts: n/a
Originally Posted by Littleboyblue
...The cat produces so much heat that is actually hard on the turbo.
VIP Member
iTrader: (6)
Joined: Feb 2003
Posts: 6,155
From: Alaska
Car Info: R.I.P 03 aspen white wrx
Originally Posted by RCFerrara
I've read several places, most recently on MRTPerformance's site (http://www.mrtrally.com.au/performance/howbov.htm), that "turbo RPM is based on a "thermal load" NOT rpm as some people think". I guess I always thought that engine RPM and Turbo RPM are directly related. From what this website is saying, it sounds like heat is necessary. What am I missing here? Thanks.
cause after its warmed up and i rev it its puffs for a sec then clears up.. ive done a compression test and the engine seems to be in good health....
just a thought
edgar,
Last edited by zumnwrx; Jun 16, 2004 at 09:08 PM.
Registered User
Joined: Feb 2004
Posts: 246
From: Your friendly neighborhood Marine Corps recruiting station! (Pearlridge Mall by Banditos)
Originally Posted by mexicanpizza
No, that's resetting the ECU.
At least on 02/03's, you need two "CEL fixes" when messing with exhaust components. One is a 2.2k ohm/0.5W resistor for the EGT sensor in the uppipe, and the other is a splice in fix for the rear O2 sensor to prevent "Cat Inefficiency" trouble codes from being thrown.
At least on 02/03's, you need two "CEL fixes" when messing with exhaust components. One is a 2.2k ohm/0.5W resistor for the EGT sensor in the uppipe, and the other is a splice in fix for the rear O2 sensor to prevent "Cat Inefficiency" trouble codes from being thrown.
-Neale


