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09-11-2002, 06:26 PM | #1 |
Scooby Specialist
Member#: 12223
Join Date: Nov 2001
Chapter/Region:
MAIC
Location: Pittsburgh Pa
Vehicle:2005 WRX |
Going catless on stock boost control = boost spike?
Not sure on this one. Im going catless very soon. I will be running on the stock boost coost controller for now. How much spike or boost creap will I encounter?
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09-11-2002, 06:46 PM | #2 |
Scooby Specialist
Member#: 9923
Join Date: Sep 2001
Vehicle:2005 Legacy GT RIP MBP WRX |
1 cat with a 3 inch turboback, no spiking at all on the factory BC and restrictors.
jb |
09-11-2002, 07:33 PM | #3 |
Scooby Specialist
Member#: 12223
Join Date: Nov 2001
Chapter/Region:
MAIC
Location: Pittsburgh Pa
Vehicle:2005 WRX |
I have one cat in now. I am replacing it with a catless downpipe.
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09-11-2002, 11:43 PM | #4 |
Scooby Specialist
Member#: 12223
Join Date: Nov 2001
Chapter/Region:
MAIC
Location: Pittsburgh Pa
Vehicle:2005 WRX |
ttt
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09-12-2002, 04:37 PM | #5 |
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Join Date: Aug 2002
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I have one cat in the down pipe now and will replace it with a aftermarket high flo piece soon. I don't have a prob with boost spikes. But when i put the vf-30 on the fbc would bounce the boost from 15-10 psi in higher gears though this seems to be going away( ithink that the computer is smart)
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09-12-2002, 05:42 PM | #6 |
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There will be no spiking. However, the overall boost might go up a bit. I'm running vishnu up-pipe, turboxs turbo back with race pipe (catless) and getting about 15psi.
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09-14-2002, 10:00 AM | #7 |
Scooby Newbie
Member#: 11318
Join Date: Oct 2001
Location: Harrisburg PA
Vehicle:2002 WRX WR Blue Pearl |
Ya, boost will go up
I just put a vf23 on a catless 3inch exhaust and my boost was going upto 18.5psi. So I had to use an MBC o controll it.
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09-15-2002, 01:06 AM | #8 |
Scooby Specialist
Member#: 9193
Join Date: Aug 2001
Location: California
Vehicle:2002 WRX Silver |
I am also wondering about this issue. I am running full catless exhaust system, and have not experienced any boost spikes.
However, I want to add a boost controller, will it be safe? Also which MBC will be a good choice? |
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