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Old 04-03-2009   #187
GregCrowe
 
Join Date: Sep 2004
Location: Oklahoma
Posts: 111
Default Re: 91 ZR-1 Cutting Out Under Load

Quote:
Originally Posted by scottfab View Post
Greg, sure glad you nailed it and really glad you hung onto the car.
I am curious about the Summit coils. Did they take them back?
What size wires are you using? 7mm or 8mm?
Since the summit coils were not subjected to high temperatures I am curious about the failure mechanism. If the primary to secondary winding ratio is large enough over stock then the secondary voltage could be exceeding the insulator breakdown voltage of the wire insulation.
(hotter spark)
The measured resistance seems to indicate this but there are other explanations behind the measured values. (quality and diameter of wire)
I sure would like to cut one of those summit coils apart.
Root cause analysis stuff.
Thanks
Scott
Yes, Summit took them back. I'm using new GM plug wires, think they're 8mm. I think the problem with the Summit/Accel coils was the 2 connection slots. They were too lose, didn't squeeze the terminals that plugged into them.
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