http://shop.accel-ignition.com/ignit...uper-coil.html

 

looks like truck coils painted yellow for $60 a pop

 

Hi bud
I was after some accel coils for a c5 , if you search for c5 coils on that site it only has ignition wires and a few other items but no coils listed
so I gave up .

Those truck coils may not fit , or the connector might be different.

Might be worth asking them before you order .

Think they do list c6 coils afaik so I assume a c6 is different than the c5 ??.

Cheers

 

yes the connector at the coil end is different but you can use any newer style coil harness and it works just fine, the other end where it plugs into the engine harness is the same... they are probably a waste of money like the msd coils

 

Ah well done mate.

All I know is accel coils were included in a pulley upgrade kit for my f150 lightning and seem fine , no probs so far

Will be moving coils to behind the fender on my c5 , so not bothered what they look like , so going with my LS6 stockers for now .

Thanks for the connector info c5/c6 that could be real useful in the future

 

Stock coils from a late 2002 build here, why do you ask?

I threw the rest of this stuff because I was bored, not because I should be running my mouth about things electrical .

If it helps, I talked to a factory rep from MSD about his brand of coils. He said that his coils offered no performance advantage. I would expect a company in this type of business would simply look into the number of potential customers with all the LS engines around and decide a slice of GM's pie would be a cost effective product to bring to market. No new understanding in coil designs I am aware of.

I don't think the spark energy is a problem because the stock spark plug electrode was changed to a less conductive material in favor of longevity with the 01 upgrades. Increased spark energy seems to be the only benefit the link mentioned on the new product, you didn't mention the reason you asked , so I guessed. I also reason a more powerful coil was within GM's understanding at the time of the build, if needed.

I once increased my spark energy, just adding on new cool stuff to an old car because I could, not because I had understanding or a plan. I had old stuff, MSD sold new shiny stuff.
As it turned out, my old points had a phenolic resin distributer cam follower, and just before my trip, I put in a new set of points with a more common nylon cam follower. On my trip the extended runs with a hotter spark heated the plastic cam follower enough to deform, closing the trigger gap, and stopping the car. Once the car was stopped it would cool and produce the original gap setting by the time I got there.
THat was a tough one for me to figure out until the snubber got enough heat and wear combined to give obvious visual clues. I'm strong on obvious, the rest can be a problem.

Just remember all electrical circuits require balance. Changing one dimension of the circuit will effect the entire circuit. Sometimes it matters, like when guys put in a super amp and it kills the alternator. With coils the increased spark energy has to come from somewhere in a system designed for a different winding on the coil than the higher powered replacement. Although to be fair, I suspect a company of this success, would bump the specs enough to have something new to sell, without destroying the intended usefulness in a stock circuit balance, that would be bad for business, and they are not that.

I was looking into coils on the advice of other owners. I have a stock motor that needed wires and plugs and the replacement results had me looking at the only other known old age consumable parts, the coils. I only hear the slight irregularity at idle, the power feels smooth. I suspect a tired coil, but with no moving parts, only the insulating properties change with age to effect performance. I need an electrical test within my abilities to check for out of spec , although if coils were cheaper, I would just listen at the cylinder with my el cheap o brand mechanics stethoscope and see if a new coil helped in that location. I might do that anyway, as the discharge tests I have come across are beyond my equipment and easy understanding. However, I don't often gamble and without a valid test, It's a dice roll for the cost of the coil.