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03-13-2017
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#111 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: Rough running
Bring it to Chicago.
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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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03-14-2017
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#112 | |
 Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: Rough running
Quote:
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03-15-2017
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#113 |
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Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
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Re: Rough running
Well this thread is going to flipped upside down.
I just recently purchased a NOS 1991 PROM. I wanted to try out a stock tune on my car and see how it reacted. It is very interesting how the car reacted. No stumble at all under the exact same conditions as before, and I noticed that the BLM/INT's were more consistent side to side. With my Haibeck tune the INT's get way off from side to side, and during a decel drops to a really low number. The stock tune never got below 115 on INT or BLM's. Very interesting. It appears the O2 sensors worked better as well. The car did backfire quite a bit during deceleration. I will attach the datalog. This points me to a tuning issue for my Decel, tip in, stumble issue. To look at the datalog you will need to change from .pdf to .xdl file extension. Could someone review and compare?
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Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
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03-16-2017
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#114 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: Rough running
There are 2 stock chips for every year. Do u happen to know the "broadcast code" for the chip u bought?
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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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03-16-2017
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#115 |
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Join Date: Feb 2016
Location: Carterville Illinois
Posts: 852
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Re: Rough running
Sorry your having such issues.....But DAMN I love the sound of your Beast! I'm running a stock chip and sometimes get a backfire on acceleration but never on decel....
Last edited by rush91; 03-16-2017 at 10:51 AM. |
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03-16-2017
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#116 | |
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Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
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Re: Rough running
Quote:
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Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
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03-16-2017
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#117 | |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: Rough running
Quote:
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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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