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9/4/11 1:59am - Original Message: 'ignition wire resistance specs'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 830
So what's a "good" resistance spec for HEI ignition wires?  I replaced mine several years before the rebuild I'm doing now with a good set.  There are not many miles on this set - less than 2K.  They were a bit oily, but they cleaned up nice with gentle degreaser and the jackets and boots are in physically good shape.  I measured the resistance of all and calculated resistance per length.  Very consistent at about 42-44 ohms/inch for all wires.  (500-525 ohms/ft).  Seems low compared to some of the specs I've seen on the internet (good) but the specs I could actually find on the internet were all over the place and none specific to HEI systems (bad).  I think I'm going to keep 'em since they're a good set and they're direct fit for my car (routed underneath with original shielding).  Thoughts?

Thanks, Dave


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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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9/4/11 11:59am - Reply: 'Re: ignition wire resistance specs'
rraider1
Former Member
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
I think what helps you know they are ok they all read the same, it would be obvious if one was bad the resitance would be way off. my 2 cents. but I am brokeWink I belive the resistance will be different between the 7mm wires and 8mm

|UPDATED|9/4/2011 8:59:14 AM (AZT)|/UPDATED|


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Bob R
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9/4/11 3:25pm - Reply: 'Re: ignition wire resistance specs'
daveo76
Standard Member
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 830
Thanks, Bob.  I agree - consistency is good in this case.  They are 8 mm wires, FYI.  

____________________________________

 

1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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