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QMCMSS · 05-09-2015

Trying to get my mind wrapped around my chip. I am an old school guy with a couple classics they are carbureted and no computer. I recently purchased a 91 ZR1 and love the car. She came with Corsa exhaust, Top end ported, and a Hailbeck chip, stock exhaust manifolds to keep the environment safe here in California. On Marc's website it explains what the chip does to improve performance to what I assume is a stock motor. Do I need a new or modified chip to maximize the the changes from Stock on my car. . I wanted to have the car dynoed but have discovered its not so easy. All the dyno shops I spoke to said they would be happy to sell me a few runs but they were unable to make changes because they couldn't communicate with the Chip/ECM. I guess on newer cars they communicate directly with the ECM via the OBD connection and can make changes on the fly via computer software something I guess you can't do with my 1991 antique. If I do a couple runs can I send the data to Marc and ask him make a chip for my car then i would be back to the dyno for more runs to see if they worked seems expensive and inefficient. I live in the SF bay area and would love to find a dyno that is familiar with the car but as yet have had no luck. I'm not afraid to work on the car myself but haven't got around to installing the chassis dyno in my garage yet. The car has a high rpm (about 5500rpm) miss under a heavy foot, just got some NGK 3690's to put in next week, if that doesn't solve the problem I will check out the coils as soon as I figure out where they are. I'm guessing to adjust timing I need a new chip, I'm also assuming based on his website that the Hailbeck chip changes fuel air ratio and advance all along the curve. Finding stepping into a new world is exciting and fun. Thanks all for your great posts I'm learning a lot from them.

05-09-2015	#1
QMCMSS Join Date: May 2015 Location: Benicia, CA Posts: 27	The Chip Trying to get my mind wrapped around my chip. I am an old school guy with a couple classics they are carbureted and no computer. I recently purchased a 91 ZR1 and love the car. She came with Corsa exhaust, Top end ported, and a Hailbeck chip, stock exhaust manifolds to keep the environment safe here in California. On Marc's website it explains what the chip does to improve performance to what I assume is a stock motor. Do I need a new or modified chip to maximize the the changes from Stock on my car. . I wanted to have the car dynoed but have discovered its not so easy. All the dyno shops I spoke to said they would be happy to sell me a few runs but they were unable to make changes because they couldn't communicate with the Chip/ECM. I guess on newer cars they communicate directly with the ECM via the OBD connection and can make changes on the fly via computer software something I guess you can't do with my 1991 antique. If I do a couple runs can I send the data to Marc and ask him make a chip for my car then i would be back to the dyno for more runs to see if they worked seems expensive and inefficient. I live in the SF bay area and would love to find a dyno that is familiar with the car but as yet have had no luck. I'm not afraid to work on the car myself but haven't got around to installing the chassis dyno in my garage yet. The car has a high rpm (about 5500rpm) miss under a heavy foot, just got some NGK 3690's to put in next week, if that doesn't solve the problem I will check out the coils as soon as I figure out where they are. I'm guessing to adjust timing I need a new chip, I'm also assuming based on his website that the Hailbeck chip changes fuel air ratio and advance all along the curve. Finding stepping into a new world is exciting and fun. Thanks all for your great posts I'm learning a lot from them.