I need your old functioning stock coils

Turbo II Rotor · \r\n \r\n \r\n 01-30-2010, 11:47 AM\r\n \r\n \r\n

If anyone here has been following my dyno adventures, you'll probably recall me saying that Dave and I made huge gains in power with small changes to AF's in the 10-5-11.5 range as we crept up to .8L or 11.7-11.9. We believe this is due to the ignition system being sub-par in terms of spark current and energy. I'm running 4 LS1 coils (D580's) and for a long time they were considered an upgrade from stock and on par with the stock+CDI box setup. Unfortunately I have yet to find any back to back dyno graphs or true data concerning these or other coils. I'm frankly tired of internet legend and ass dyno's and want to put an end to this once and for all. Here's my plan

Over the winter I'm changing a few things on the setup including injectors and coils. Which ever coil I decide on will be the one that we tune with until the L's and turbo's are dialed in, most likely a new Bosch coil. Then the fun begins and the bullshit ends.

Over the winter I'll be modd'ing my harness to accept a DTM connector for the ignition setup so we can swap coils and plugs in a matter of minutes while on the dyno. I'll also be building my own spark plug wires and they will all be of the same wire so no one can butt in and say, dude, your wires sucked, that's why X coil didn't do as well, that's what I use and they're AWESOME! There will be none of that at the end of this test. I thought about contacting someone with an occiliscope, but I think real workd results will work better.

I plan on testing -
Stock 2nd gen coils
Stock 3rd gen coils
Stock RX8 Coils
D580 coils
D510 coils
and a set of top secret Bosch coils

My car will be the test mule and the testing will be done at my expense. I will NOT be giving any road/ass dyno feedback. The only things that I will be able to provide are back to back dyno sheets with in a few minutes of each other, comments on idle quality and starting ease. We'll probably do two runs on each coil just to make sure the results aren't some type of fluke. In other words, actual numbers to despense with internet lore.

So, here's what I have/what I need. I have a set of stock 2nd coils, the D580's, and I'll be fronting the coin for the Bosch coils. What I need from you guys are your old stock 3rd gen coils, old stock RX8 coils, and if anyone is feeling generous, OR if you're planning on upgrading to the D585 coils (LS2 Yukon Coils - I've been told by a few people that the D510C coils - latest gen LS7 engine - outperform the D585's) perhaps you can front for the D510C's and I can test those for us. Of course you'll get them back after the test and I can throw in the connector housings, pins and seals that you'll need to do the wiring for fronting the cash for these coils, probably ~$20 worth of electrical cripe. No chinese knockoffs though, Tyler

They can be purchased from RockAuto (returnable withen 30 days) for ~$68 each or AC-Direct (don't know thier return policy) for $62 I think...

So, who's feeling generous for the greater good of the community?

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