The coil wire may be breaking down with heat, but so could the coil. I've seen coils arc from bad coil wires - even though the coil was good. The wire could be gaining resistance with heat - and the joules have to go somewhere - kinda like lightning if there's no easy path to ground.

Frank

Last edited by FrankR; 10/11/05 02:32 AM.
'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum