Corvette LS1 Ignition Coil Project..
02-08-2008 | 06:22 PM
#27
well maybe I'll learn something new then because I'm looking at the prescribed setup page and I don't see how it will interface properly on an RX-8 Renesis:
http://www.msdignition.com/pdf/6304.pdf
http://www.msdignition.com/pdf/6304.pdf
02-08-2008 | 06:38 PM
#28
Thread Starter
04 Silver GT
Joined: Jan 2005
Posts: 111
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From: Alberta Canada
well maybe I'll learn something new then because I'm looking at the prescribed setup page and I don't see how it will interface properly on an RX-8 Renesis:
http://www.msdignition.com/pdf/6304.pdf
http://www.msdignition.com/pdf/6304.pdf
Ignition controller isnt needed . We already have that.. .
Tell you what .I'll see if I can get a wiring diagram..
I'll get back .
Last edited by ltrx8; 02-08-2008 at 06:48 PM. Reason: wrong link provided by user
02-08-2008 | 06:44 PM
#29
Thread Starter
04 Silver GT
Joined: Jan 2005
Posts: 111
Likes: 0
From: Alberta Canada
Actually the part # 6302 dual coil ignitor... Ahh I'm even beginning to see how this is gonna work
http://www.msdignition.com/2007/light.html
This is why I need two dual coil ignitors..Leading and trailing.
http://www.msdignition.com/2007/light.html
This is why I need two dual coil ignitors..Leading and trailing.
Last edited by ltrx8; 02-08-2008 at 06:49 PM.
02-08-2008 | 06:49 PM
#30
Well, no.
Anyone that would bother to read my threads on the subject (having experimented with the RX-8s ignition system pretty extensively for the last 3 years), would see that the OE coils have a trigger cycle and dwell that is unique.
Even if you get the coils to fire (which is the easy part) the ignition timing will be off and will get more and less off as the RPMs change (the hard part).
The end result is sudden, unpredictable detonation.
Anyone that would bother to read my threads on the subject (having experimented with the RX-8s ignition system pretty extensively for the last 3 years), would see that the OE coils have a trigger cycle and dwell that is unique.
Even if you get the coils to fire (which is the easy part) the ignition timing will be off and will get more and less off as the RPMs change (the hard part).
The end result is sudden, unpredictable detonation.
02-08-2008 | 09:15 PM
#31
Thread Starter
04 Silver GT
Joined: Jan 2005
Posts: 111
Likes: 0
From: Alberta Canada
Well, no.
Anyone that would bother to read my threads on the subject (having experimented with the RX-8s ignition system pretty extensively for the last 3 years), would see that the OE coils have a trigger cycle and dwell that is unique.
Even if you get the coils to fire (which is the easy part) the ignition timing will be off and will get more and less off as the RPMs change (the hard part).
The end result is sudden, unpredictable detonation.
Anyone that would bother to read my threads on the subject (having experimented with the RX-8s ignition system pretty extensively for the last 3 years), would see that the OE coils have a trigger cycle and dwell that is unique.
Even if you get the coils to fire (which is the easy part) the ignition timing will be off and will get more and less off as the RPMs change (the hard part).
The end result is sudden, unpredictable detonation.
Last edited by ltrx8; 02-08-2008 at 09:33 PM.
02-08-2008 | 11:24 PM
#32
Well, no.
Anyone that would bother to read my threads on the subject (having experimented with the RX-8s ignition system pretty extensively for the last 3 years), would see that the OE coils have a trigger cycle and dwell that is unique.
Even if you get the coils to fire (which is the easy part) the ignition timing will be off and will get more and less off as the RPMs change (the hard part).
The end result is sudden, unpredictable detonation.
Anyone that would bother to read my threads on the subject (having experimented with the RX-8s ignition system pretty extensively for the last 3 years), would see that the OE coils have a trigger cycle and dwell that is unique.
Even if you get the coils to fire (which is the easy part) the ignition timing will be off and will get more and less off as the RPMs change (the hard part).
The end result is sudden, unpredictable detonation.
I confess I have yet to read much on the subject.... Will get on that
02-09-2008 | 12:12 AM
#33
Sorry MazdaManiac but its gone from the LS1(mk ultra project) to the MSD (dual coil ignitors) and (Blaster coil) project.. for reasons mentioned in this thread. Check it out..What you say above is correct (I searched) if you have any Idea why or how this new arrangement would have negative effects . Please get back to us..It would benefit other members as well. I also edit alot because I broke my hand the last time we chatted .lol
Then, run two inductive pickups to a scope and free-rev the engine through the full RPM band and compare the plots. If they are in sync, you are golden.
Having done that with a few different possibilities, I found that most third-party coils produced plots that went in and out of sync.
02-09-2008 | 05:09 AM
#34
Sorry MazdaManiac but its gone from the LS1(mk ultra project) to the MSD (dual coil ignitors) and (Blaster coil) project.. for reasons mentioned in this thread. Check it out..What you say above is correct (I searched) if you have any Idea why or how this new arrangement would have negative effects . Please get back to us..It would benefit other members as well. I also edit alot because I broke my hand the last time we chatted .lol
then time to start a new thread with the right heading...
as the topic here failed... btw, you failed....
beers
02-09-2008 | 12:39 PM
#35
Thread Starter
04 Silver GT
Joined: Jan 2005
Posts: 111
Likes: 0
From: Alberta Canada
For any members who wish to follow this up
NEW THREAD IS " MSD Ignition Project " in aftermarket performance section.
Last edited by ltrx8; 02-09-2008 at 12:50 PM.
02-09-2008 | 12:57 PM
#36
Thread Starter
04 Silver GT
Joined: Jan 2005
Posts: 111
Likes: 0
From: Alberta Canada
Well, what I would do is hook up whatever coil/ignitor combination you are planning to experiment with in tandem with the stock coil and run it to a plug that is just grounded on the block.
Then, run two inductive pickups to a scope and free-rev the engine through the full RPM band and compare the plots. If they are in sync, you are golden.
Having done that with a few different possibilities, I found that most third-party coils produced plots that went in and out of sync.
Then, run two inductive pickups to a scope and free-rev the engine through the full RPM band and compare the plots. If they are in sync, you are golden.
Having done that with a few different possibilities, I found that most third-party coils produced plots that went in and out of sync.
I do believe thats why pn#6302 (dual coil ignitors)come into play .But I'll know more as we progress..MazdaManiac do you or anyone else have any idea how or why tech would suggest the dual coil ignitors? . I think each one handles leading and trailing spark, but I'm sure you or others know more about this kind of thing.Please get back. Also feel free to check out new thread started on topic as instructed by swoope " MSD Ignition Project" and post any info you might have there..
Last edited by ltrx8; 02-09-2008 at 01:16 PM.
02-14-2008 | 05:39 PM
#37
LS2 coils
LS2 coils:
The fit, they work and are directly compatible with the RX-8 electrically.
The only issues are plug wires (you must make your own), wiring harness (same) and fabrication of some brackets (need I say it?).
The fit, they work and are directly compatible with the RX-8 electrically.
The only issues are plug wires (you must make your own), wiring harness (same) and fabrication of some brackets (need I say it?).
02-14-2008 | 05:58 PM
#38
well that didn't take long 
I was going to mount them down on the side of the engine in the sparkplug area with the shorty plug wires, then build an adaptor harness for the wiring connections
guess I should have only let you have four instead of all eight, my bad
there's always the MSD LS2 route though
congrat's on proving it out
I was going to mount them down on the side of the engine in the sparkplug area with the shorty plug wires, then build an adaptor harness for the wiring connections
guess I should have only let you have four instead of all eight, my bad
there's always the MSD LS2 route thoughcongrat's on proving it out
Last edited by TeamRX8; 02-14-2008 at 06:03 PM.
02-14-2008 | 06:32 PM
#39
Big thanks to you, Mark. Had you not made your stuff available, I probably would have dragged my feet a few more months at least.
The MSD version of these coils would probably be even better. At some point I'll probably try a set of those as well.
I haven't done any significant tests of these coils efficacy in reducing misfires or handling richer mixtures, but I'll get to that on the dyno this weekend.
The MSD version of these coils would probably be even better. At some point I'll probably try a set of those as well.
I haven't done any significant tests of these coils efficacy in reducing misfires or handling richer mixtures, but I'll get to that on the dyno this weekend.
02-14-2008 | 10:55 PM
#45
Cool! Sounds like a great lower-priced alternative to Mazsport solution... I think the next time my coils fail I'll get a set of LS2 coils regardless of any plans for FI...
Oh and while you're fabricating a custom mount, why not get the coils farther away from the engine block to avoid exposing them to heat and possible increase reliability? A while back you were asking about what to do to dress up your engine bay... Make a mount that conceals that rats nest of wires and get some nice bright red plug wires
Oh and while you're fabricating a custom mount, why not get the coils farther away from the engine block to avoid exposing them to heat and possible increase reliability? A while back you were asking about what to do to dress up your engine bay... Make a mount that conceals that rats nest of wires and get some nice bright red plug wires
02-14-2008 | 11:12 PM
#46
I've got red plug wires!
Doing an LS2 coil swap will not typically cost much less (if any at all) than the Mazsport solution. (Depending on your bargain-hunting capability! Thanks Mark!)
However, since it doesn't require an external igniter/converter, it can be used by folks that are restricted in the types of mods that they are allowed.
Doing an LS2 coil swap will not typically cost much less (if any at all) than the Mazsport solution. (Depending on your bargain-hunting capability! Thanks Mark!)
However, since it doesn't require an external igniter/converter, it can be used by folks that are restricted in the types of mods that they are allowed.
02-14-2008 | 11:37 PM
#47
I've got red plug wires!
Doing an LS2 coil swap will not typically cost much less (if any at all) than the Mazsport solution. (Depending on your bargain-hunting capability! Thanks Mark!)
However, since it doesn't require an external igniter/converter, it can be used by folks that are restricted in the types of mods that they are allowed.
Doing an LS2 coil swap will not typically cost much less (if any at all) than the Mazsport solution. (Depending on your bargain-hunting capability! Thanks Mark!)
However, since it doesn't require an external igniter/converter, it can be used by folks that are restricted in the types of mods that they are allowed.
I did a quick search of ebay and saw sets of LS2 coils go for $300 ish
02-15-2008 | 01:58 AM
#50
Registered User
Joined: May 2007
Posts: 225
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From: Last exit in New Jersey
wow, i'm glad i've kept up on reading through this. i almost started ignoring it when the original plan changed a million times. nice job on making a nice alternative work. if you make a connector kit, i'd be in line for one.