can the coils be relocated?
#26
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I f $350 will deal with the 7-9K power problem on a lot of cars ( like mine ) It will be a no brainer. I replaced all 4 coils and dyno'd about 8mos later and it didn't change a thing. To do a proper comparison though I would have needed new plugs at both dynos to rule them out.
A dyno with coilpack A new plugs...followed immediately by a dyno with coilpack B would let us see if it makes a difference.
Silver8...did you get any datalogs to compare dyno's to in car values...I wish that the data would show us something that explains how these engines are so different
A dyno with coilpack A new plugs...followed immediately by a dyno with coilpack B would let us see if it makes a difference.
Silver8...did you get any datalogs to compare dyno's to in car values...I wish that the data would show us something that explains how these engines are so different
#27
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Originally Posted by Spin9k
MM, what did this setup do for you? Better top end power perhaps? And what do you expect from adding the other two?
This is very important, BTW. Many of the "plasma" or capacitive options trigger on the leading edge, which is not acceptable.
The AEM is switch-selectable for leading or trailing edge of the pulse.
The expectations are better fuel economy at cruise, smoother idle, faster throttle response and indestructable coils that provide more power at high RPM and, therefore, potentially more power over a wider range.
Here are the coils themselves:
#29
Keep working guys ---please. I KNOW there are a lot of people out there with stressed or burnt coils. If $350-$400 would take care of that---you will have a a lot of peoples thanks. I beleive a good set of spark plug wires ought to be included with a upgrade like this. It may not make a good running car put out more on the dyno but it would sure fix a problem and make the car more bullet proof.
If coils and wires are a problem at this mileage then I would rather fix it right than band aid it again.
olddragger
If coils and wires are a problem at this mileage then I would rather fix it right than band aid it again.
olddragger
#30
Momentum Keeps Me Going
Originally Posted by MazdaManiac
On the AEM, I am going to do the trailing the same way..
This thread seems to have some other ideas as well might be worth investigating http://ausrotary.dntinternet.com/for...7f095fea8f9485
e.g. this http://www.autronic.com/page_files/direct_fire_cdi.htm
Last edited by Spin9k; 02-05-2006 at 07:09 PM.
#31
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Originally Posted by TeamRX8
yep, except there's now a better alternative; less draw, more output
and they takeoff at very high rpm, the engine vs prop rpm is handled through a geardrive reducer
#32
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Originally Posted by Nubo
Can you be more explicit -- what do you mean by less draw?
Originally Posted by Nubo
Isn't that what I said?
Last edited by TeamRX8; 02-05-2006 at 10:41 PM.
#33
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Originally Posted by Spin9k
MM you may want to read this thread... they seem critical of AEM stuff http://www.rx7club.com/showthread.ph...hlight=AEM+CDI
Not a good idea.
TeamRX8's idea is a good one that we will experiment with as well.
There should be some good science on all of this by the end of March.
#35
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Originally Posted by TeamRX8
the spark energy doesn't just appear out of thin air, the coil draws it from the electrical system
Also, is there such a thing as TOO MUCH spark energy -- i.e. frying the plug electrodes, arcing to ground, etc?
Thanks
#36
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We hope to provide those answers soon, but I do not expect there to be any need to rewireupgradethe factory harness. There will be a wiring interface required as well as mounting them because my preference is to get them in a bit more open and less heat intense area. The GM coils also require different sparkplug wires because they have a unique GM connector/boot. They are available as universal kits from the usual manufacturers
#43
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BTW, the diagram would come from a separate RX-8 wiring manual. It's not in the general RX-8 service manual. I need to be able to decipher the OE coil wiring in order to fabricate a jumper harness between the RX-8 wiring harness and the new coils. They are not simple plug & play in that regard
#44
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Dang, my IOUAbeer tab is getting bigger and bigger that's great Spin
gotta thank my buddy swoope for his support too
now if I can only find a connector that duplicates the coil connection so that the harness doesn't have to be spliced
gotta thank my buddy swoope for his support too
now if I can only find a connector that duplicates the coil connection so that the harness doesn't have to be spliced
Last edited by TeamRX8; 02-14-2006 at 01:07 AM.
#46
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Just the thread I was looking for ... I am looking into the hks twinfire ignition and was wondering about replacing coils (makes sense to me ), but I am not that confident about installing myself (coils)..The suspense..Great thread all!!
#47
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I haven't done anything yet between work, being iced in, and all around just too d-mn cold plus the whole host of other custom parts I'm trying pull together for my RX-8
I need either a coil wiring connector or a coil itself so I try to match the wiring harness connector. I want this to be plug & play with an adaptor harness. Unfortunately the RX-8 coil wiring is not on it's own smaller harness. I do not want to cut up the factory harness if I can help it.
I need either a coil wiring connector or a coil itself so I try to match the wiring harness connector. I want this to be plug & play with an adaptor harness. Unfortunately the RX-8 coil wiring is not on it's own smaller harness. I do not want to cut up the factory harness if I can help it.
#48
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Originally Posted by ltrx8
Just the thread I was looking for ... I am looking into the hks twinfire ignition and was wondering about replacing coils (makes sense to me ), but I am not that confident about installing myself (coils)..The suspense..Great thread all!!
#49
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Originally Posted by Spin9k
Could you tell us exactly what you bought, perhaps someone can help?
The issue isn't with what I bought, I have the adaptor harness for that side of the system.
The issue is coming up with an electrical connector that duplicates the OE Mazda coil connection that I can splice into the replacement coil adaptor harness. Once I can acquire those connectors the electrical system will be plug & play because I'll be able to plug the adaptor harness into the RX-8 engine harness in place of the coils. Then it's just a matter of physically mounting the coils. Unfortunately that coinnector is integral to the coil body, so I can't just cut & splice it. I have to find a duplicate connection that can be spliced into the harness.
So close yet so far ...
Last edited by TeamRX8; 02-22-2006 at 11:48 PM.
#50
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sorry, that information will not assist me with what I need
here is the OE coil setup:
I want to be able to unplug the four OE coils and plug the new adapter harness into their connectors. The adaptor harness is already connected to the four replacement coils with the proper OE connectors
so it's the connector on the RX-8 coil that I need to duplicate for the adaptor harness, shown below:
BTW, I discovered that I already had all those electrical diagrams, I should spend less time collecting and more time reading through what I have, LOL
.
here is the OE coil setup:
I want to be able to unplug the four OE coils and plug the new adapter harness into their connectors. The adaptor harness is already connected to the four replacement coils with the proper OE connectors
so it's the connector on the RX-8 coil that I need to duplicate for the adaptor harness, shown below:
BTW, I discovered that I already had all those electrical diagrams, I should spend less time collecting and more time reading through what I have, LOL
.
Last edited by TeamRX8; 02-23-2006 at 12:39 PM.