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Car not hitting target boost

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Old Sep 14, 2009, 09:59 PM
  #16  
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Originally Posted by javip1986
same problem here. bad cat. I took out the clogged up one and welded a test pipe. Mine was only holding 13 psi. What you can do is take out the exhaust from the 02 dump back, go for a ride and check your boost, without the downpipe hooked in.
kirkklau, you should do this ^ and report back.
Old Sep 14, 2009, 10:34 PM
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Green is WG pressure (hose from pressure source connected to EWG)

Blue is Solenoid at 100% WGDC or MBC fully closed (both had same result)

- Bryan

Last edited by GST Motorsports; Sep 14, 2009 at 10:40 PM.
Old Sep 16, 2009, 03:23 PM
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dead cheap cat.

- bryan
Old Sep 16, 2009, 03:36 PM
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game over man, game over! nothing like having a 90% or so blockage in your exhaust.
Old Sep 16, 2009, 03:59 PM
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Holy crap!

Good catch, that's yet another reason to switch to TP!
Old Sep 16, 2009, 04:01 PM
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How did the cat die or get clogged? What's it supposed to look like?
Old Sep 16, 2009, 04:05 PM
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Originally Posted by LaXGSR
How did the cat die or get clogged? What's it supposed to look like?
Could of been a bunch of reasons. Bad quality, defective, too hot, etc. It came to us like this so we have no idea how the car was running before.

We've never had any issues with quality metal substrate cats and we have pushed them pretty hard before. (redline time attack street cars, etc)

- Bryan

Last edited by GST Motorsports; Sep 16, 2009 at 04:15 PM.
Old Sep 16, 2009, 04:26 PM
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Originally Posted by GST Motorsports
Could of been a bunch of reasons. Bad quality, defective, too hot, etc. It came to us like this so we have no idea how the car was running before.

We've never had any issues with quality metal substrate cats and we have pushed them pretty hard before. (redline time attack street cars, etc)

- Bryan
Thanks Bryan, I just noticed he was running the Ultimate Racing metal cat. I thought that was stock cat at first so got more worried. Have you seen any stock cat failures?
Old Sep 16, 2009, 05:13 PM
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bryan,

is it my HFC?

kl
Old Sep 16, 2009, 05:27 PM
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bryan,

do you have time this week (9/19 sat) or next week (9/26 sat) to tune my car after the cat problem is fixed. i am curious to know what my car can make with the cat fixed.

pls let me know

thanks

kirk
Old Sep 16, 2009, 07:07 PM
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instead of not reaching the boost, i overreached the boost that i set up, i BOOM POWED into 30psi...but with the HKS WG, it sort of fixed the problem
Old Sep 17, 2009, 08:01 AM
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Awesome, can't wait to see the NEW results! Do away with the catalytic BS. Haha
Old Sep 17, 2009, 08:07 AM
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wow that is the first time i have ever seen that happen to a hfc.

either defect or cheap quality.
Old Sep 17, 2009, 01:27 PM
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how could it be the cat is my question... Aftermarket cats are way more free flowing then stock ones and the ultimate racing metal substrate is claimed to withstand 750hp or so
Old Sep 17, 2009, 04:59 PM
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Glad to see you figured it out.
Myself, I still havent figured out why I cant boost.


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