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05-13-2011
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#31 |
 
Join Date: Nov 2010
Location: Omaha
Posts: 403
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Re: Finally getting my ZR-1 back from Corey's!!!
Thanks Jerry. You have to love the ZR-1 community, such a good group of guys.
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05-13-2011
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#32 |
 
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,394
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Re: Finally getting my ZR-1 back from Corey's!!!
You know, they really are. And trust me when I say Corey probably won't sleep tonight worrying about your car!
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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05-14-2011
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#33 |
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Join Date: Jan 2004
Location: Portland, OR
Posts: 1,057
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Re: Finally getting my ZR-1 back from Corey's!!!
Hmmm oil getting onto headers is most likely the header stud, cam cover or possibly the cam position sensor. Ticking - likely an exhaust leak - quite possibly at the header gasket given the other symptoms. Smoke = burning oil. Rough running is likely a result of the exhaust leak throwing off the O2 sensor.
My best sight unseen guesses.
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Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 |
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05-14-2011
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#34 | |
 
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,632
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Re: Finally getting my ZR-1 back from Corey's!!!
Quote:
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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08-15-2011
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#35 |
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Join Date: Nov 2010
Location: Omaha
Posts: 403
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Re: Finally getting my ZR-1 back from Corey's!!!
Just thought I'd update this to let anyone that was interested know the answer. Turns out it was one of the "new" injectors stuck open. Swapped the originals back in, and it's running better. Will be sending the new ones back to Jon for him to check, they were rebuilt and apparently if they sit "dry" too long they can have issues.
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08-15-2011
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#36 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: Finally getting my ZR-1 back from Corey's!!!
I had the same issue at first with one from Jon.. he will take care of you..
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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08-15-2011
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#37 | |
 
Join Date: Feb 2010
Location: Pendleton, IN
Posts: 3,904
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Re: Finally getting my ZR-1 back from Corey's!!!
Quote:
Love the yellow!!!!!!!!!!
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1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project |
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08-15-2011
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#38 | |
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Join Date: Jul 2009
Location: Redding Calif
Posts: 223
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Re: Finally getting my ZR-1 back from Corey's!!!
Quote:
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1994 ZR-1 # 0102...SOLD |
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08-15-2011
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#39 |
Join Date: Aug 2008
Location: Houston 90 Red ZR-1
Posts: 2,320
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Re: Finally getting my ZR-1 back from Corey's!!!
Hmm! My 90 makes 357rwhp with just top end porting only. And I'm still running stock cats and manifolds with a Borla. 360rwhp seems pretty week with all the work you've had done. I would think you should be higher than that.
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08-15-2011
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#40 |
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Join Date: Jun 2010
Location: back in lone pine
Posts: 591
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Re: Finally getting my ZR-1 back from Corey's!!!
the lower than average figures are most likely due to corey not being ablr to put the timing in the car he would like to . nice thing about corey is he tunes the car safely so it will live. the borla is costing you at least 15 rwhp as i have tested just about all the cat back systems out there . if you removed the resonator and added a x pipe or balance tube you power woiuld get to where it should be .jmho
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