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| TECH Support Technical Support for your RX7, Open 24/7/365. Post your problems and see if someone can help! |
03-27-2005, 09:24 PM
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#1
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Junior Member
Join Date: Mar 2005
Posts: 2
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Boost Spike Damage
I need some tech troubleshooting after a very large boost spike. I've been running 13lbs and a very unfortunate situation led to a 28lbs spike.
The only reason my engine is still running is because I think my Garrett GT35R turbo popped before I had time to even react to the spike...I'm thinking good thing it did. I assume it popped because I no longer have boost. So my first question is, can a turbo be dead even if it still spins? I pulled it off the car and I can spin the wheel without any noticeable damage to the fins or bearings.
Second problem is that I could not get my engine over 5K rpms. It starts, idles, and runs fine till that point. I was thinking the damaged turbo was restricting airflow, but since it spin ok I'm having second thoughts about my motor being ok. Do you think I damaged/popped my motor too?
My last question is, do you know where I can get a GT35R...Cheap!! (.82 A/R Turbine) Thanks for your help.
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03-28-2005, 04:48 AM
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#2
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Full Access Member
Join Date: Apr 2004
Location: Austin & Waco Texas
Posts: 553
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I would bet that your turbo survived and that your motor popped if not you're really lucky.
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03-28-2005, 08:28 PM
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#3
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Junior Member
Join Date: Mar 2005
Posts: 2
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I do consider myself extremely lucky. The pressure popped off a hose and not my turbo or motor, which are surprisingly working just fine. I never want to do that again.
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03-29-2005, 06:52 PM
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#4
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Full Access Member
Join Date: Apr 2004
Location: Austin & Waco Texas
Posts: 553
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Good thing you were slightly leaking boost then. Pressure test the system and seal up those boost leaks, if it was properly sealed something else would've blown.
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03-31-2005, 04:22 AM
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#5
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Junior Member
Join Date: Mar 2005
Posts: 2
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Don't forget to put the hose on the wastegate.
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05-08-2005, 06:33 PM
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#6
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Junior Member
Join Date: May 2005
Location: washington
Posts: 4
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Re: Boost Spike Damage
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Originally Posted by zizrac
Second problem is that I could not get my engine over 5K rpms. It starts, idles, and runs fine till that point. .
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What does your motor do when you try to rev it past that point?
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05-09-2005, 04:43 PM
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#7
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Full Access Member
Join Date: Sep 2004
Location: Manitoba, Canada
Posts: 194
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Originally Posted by AusTexRex
Good thing you were slightly leaking boost then. Pressure test the system and seal up those boost leaks, if it was properly sealed something else would've blown.
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I wouldn't call a spike to 28lbs a slight leak  [/i]
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__________________
Turbo lag was created to give V8's a chance.
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05-09-2005, 10:47 PM
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#8
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Full Access Member
Join Date: May 2004
Location: NV
Posts: 1,059
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"Second problem is that I could not get my engine over 5K rpms. It starts, idles, and runs fine till that point. I was thinking the damaged turbo was restricting airflow, but since it spin ok I'm having second thoughts about my motor being ok. Do you think I damaged/popped my motor too?"
Ck'd your wastegate/actuators?
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__________________
Drive safe and Sane
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