Originally Posted by MrDude_1

there are several reasons they're put down so easily.

first off, even by their over-inflated advertising claims.. the power per dollar is VERY VERY VERY low... you dont get anything you can see, feel, or even consistently measure.... but it costs alot.

second, its a solution to a problem that doesnt exist.
on a conventional V8, you have one coil, firing 4 times every engine revolution.... LS1s have 8 full strength coils, that can fully charge and fire once every two revolutions... plus theres no gap in the distributor cap to jump.. plus the wires are only a couple inches long compared to feet... and the entire ignition system is basiclly a crank trigger system, because thats where the PCM is getting the engine's crank angle from.
this all adds up to an accurate ignition system with enough power for huge HP forced induction guys... they do have a couple PCM tweaks as they approch 1000hp.. but the issues are things like the dwell set in the PCM.. not the coilpack hardware.

third, why do race cars have two MSD boxes, with a switch?
because while they're great for what they do.. all MSD parts (along with 99% of other aftermarket parts) are not tested as well as OEM.. they just cant justify the cost in testing to the same extremes... so they may or may not be as reliable as OEM.. but we know the reliabilty of the OEM components.

so when people talk about the MSD coils, the question is... why?

Originally Posted by Country Boy

People have put down 1k HP with stock coils...

Originally Posted by jam01

hey i agree they are expensive, i was only trying to give my opinion on my past experience with them. nobody gave this guy a real answer. i also agree that stock coils are fine, and as far as race cars having two i think they are more prone to breakage and they have a spare just in case.and as far as oem you can thank nafta for poor quality.