My MSD 8247 LS2 Muti-Spark Blaster Coils Project
 

""Since most of us don't have the time to read the whole thread, I created a word document with just my inputs in hopes to make it easier to understand.""

After reading Jeff’s (mazdamaniac) posts in the Corvette LS1 Ignition Coil Project https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/corvette-ls1-ignition-coil-project-137423/ I decided to pursue the same concept but instead of using GM LS2 coils I went with MSDs 8247. :eyetwitch

http://www.msdignition.com/pdf/8247.pdf

Take a look at this website for more information regarding the LS1 and LS2 coils.

http://www.megamanual.com/seq/coils.htm

I purchased four MSDs 8247 LS2 Multi-Spark Blaster Coils on eBay for $245 including shipping.

So far, I plugged one MSD coil to the leading (L1) side by individually connecting each wire to the four MSD coil pins.

The car started right away and with an inductive timing light I checked the spark output. I revved the engine up to 8k rpm several times while checking the timing light for spark output and to make sure that the spark duration/ratio was constant (sorry but I don’t have an oscilloscope). Everything looked OK.
BTW Jeff is has logged hundreds of miles thus far on his RX8 with the LS2 coils with no issues whatsoever.

I'm waiting for four D581 plug connectors to arrive so I can fabricate plugs for MSDs and splice into the OEM coil wires. Once installed I’ll take the car for a spin and will update the thread with pictures. I hope to have everything installed by the end of the week pending arrival of the D581 plug connectors. :eyetwitch

Got an email this morning to notify me that the D581 connectors are on their way and should arrive no later than Saturday, I hope. The price for the four D581 connectors was $26.68 including shipping.

Also, I went to Home Depot yesterday and purchased a few pieces of hardware to fabricate the bracket for the MSD coils. Total expense $7.58 :eyetwitch

After less than two hours of fabrication here is the bracket I was able to fabricate at home with just a hacksaw and a couple of wrenches. :eyetwitch

More bracket pictures. :eyetwitch

Looks good Juan, but curious............why not the Mazsport ignition?
I think it would still fit where you are located now because of the SC????? I'm not sure though.

Just to clarify that my OEM coils are not located on top of the engine since I’m running a Pettit Racing Super Charger. My OEM coils are located just behind the radiator where the bottom of the OEM air box used to be. See pixs. :eyetwitch

Cheaper I guess?

no ignitor box required, I'm talking to an electronics firm about offering a plug & play adaptor harness than anyone can buy ;)

Excellent question Dave. Because thus far I have only spend $279.26, the benefits of MSD Multi-Spark and the benefit of just replacing a bad coil by purchasing it in the open market. Also, it would it be way cheaper if I would gone with Jeff’s route by using the GM LS2 coils. Keep in mind that this is an experimental project and time will tell if it will work but most important, would it be reliable? :eyetwitch

Good luck Juan!

Looking forward to more pics...
8)

Looking good bro. Let me know how it works out for you.

brackets look nice.. good luck with the project

Oh yeah.......that was silly of me! :banghead:

Update, connectors arrived in the mail today. I assembled the connectors with 16 (eight inch long) pair of wires and later plugged them to the coils. Everything is now ready for swapping the coils tomorrow afternoon and hopefully have them tested on the car tomorrow evening. Will update tomorrow night along with pictures. Stay tuned. :eyetwitch

Sweet! Good luck..

good job!!! :)

beers :beer:

Well people I gave it my best shot.

I think I should get an E for Effort and a big fat S for Success.

I don't have a video camera, just a digital camera that can take 30 seconds non-audio clips. The first clip shows starting engine, revving and back to idle. The second clip shows me holding an inductive timing light while my son revved the engine. Enjoy. :eyetwitch

http://www.youtube.com/watch?v=KKiHamaW4L0

http://www.youtube.com/watch?v=3IwHIbn9TuE

I will take the car for a drive tomorrow and provide more feedback. Right now where I live is raining like hell and under a tornado watch. Therefore, no need to take any chances on the road. Tomorrow is going to be a beautiful cool air Florida day. :eyetwitch

There's no sound but I can hear your engine crying :tear:

Coils look nice thou

Are you running without the air tray over the radiator fans? That should mess up your idle when the fans are on.

looks awesome Juan....you did a great job...
was it a tight fit putting the maf back on?

PS..i know someone who has a video cameria!!

hint hint!!!

Good work. Well done.

Cheers,
Hymee.