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#1 |
![]() Join Date: Mar 2010
Location: Colorado Springs CO
Posts: 76
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I just had cats installed yesterday. Let me tell you, it's awesome not smelling like exhaust anymore.
Took the car on a 270 mile road trip, and it felt really down on power a couple of times. Once, it wouldn't rev past 4500. Felt like the power key was off. When I would push in the clutch on mountain switchbacks, the rpms would drop and kill the engine. Happened twice, scary stuff on a mountainside. When I got it restarted, I could again rev through the full range. So my question is, do I need a new chip burned after installing cats? Also seems like these issues may be unrelated, as I was at 9000-10000 feet at times. Car is 1992, SW headers, cats, B&B gen1 exhaust, haibeck chip for all mods but cats. Thoughts? |
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#2 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,696
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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#3 |
![]() Join Date: Mar 2010
Location: Colorado Springs CO
Posts: 76
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I will check the pumps today. Injectors, coils and fuel filter were done 4 yrs and 7,000 miles ago. I think I'll replace the filter anyway.
I'm not sure of the cat manufacturer, but the body is 4" in diameter and about 4 to 5" long. They are those spun body cats. Part is 56956. |
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#4 |
![]() Join Date: Mar 2010
Location: Colorado Springs CO
Posts: 76
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Fuel pressure: 45psi KOEO, 42psi at idle. That is quite low, isn't it?
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