CDI Coils -- What're you running?
09-25-05, 06:19 PM
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CDI Coils -- What're you running?
I've just purchased an Autronic R500 to run my FC, along with some 2003 Honda CBR 600 F4i coil-on-plug motorcycle coils. I'm curious to see what coils everyone else is running (e.g. Mercury Marine, MSD, Crane), and how many othe r people are using a Coil-on-Plug configuration. If you can, post part numbers as well.
The part number on the coils is: Denso 129700-3881/Honda 30700-MBW-611
The part number on the coils is: Denso 129700-3881/Honda 30700-MBW-611
09-26-05, 05:36 PM
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Originally Posted by enzo250
You will need to use plugs that have removable tips on them. That just made your spark plug choice very limited. i would use a different coil.
What coils are you running?
09-26-05, 06:05 PM
#4
I have used alot of coils all with good success. MSD Blaster SS coils, Mercury Marine coils, MSD HVC coils, and crane PS92 coils. All have worked very well. HVC's seemed to have the biggest spark. But the marine and blaster ss coils both worked flawlessly with meth and over 50psi boost so there's no need to spend all that money for them..
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10-25-05, 11:21 AM
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Update: I decided to pick up some Mercury Marine coils. The modifications to the CBR600 coils looked like they work properly, but I wanted something definite to bring the car up with.
Here's the information on the units I picked up:
Mercury Marine
339-832757A4
I bought them from OldMercs; they shipped quickly and were professional.
http://www.oldmercs.com/ignsys.html
Here's the information on the units I picked up:
Mercury Marine
339-832757A4
I bought them from OldMercs; they shipped quickly and were professional.
http://www.oldmercs.com/ignsys.html
10-25-05, 11:54 PM
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I've seen those MSD SS Blaster e-core coils fail.
Lots of people complain about them - for <$40 each, you get what you pay for!
If I had the money, I'd go all MSD HVC's.
On a budget, I'd go with the Crane Cams PS or LX series coils.
-Ted
Lots of people complain about them - for <$40 each, you get what you pay for!
If I had the money, I'd go all MSD HVC's.
On a budget, I'd go with the Crane Cams PS or LX series coils.
-Ted
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10-26-05, 12:33 PM
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Originally Posted by cardzrule
You gotta use aftermarket ignitors with those coils?
10-26-05, 12:35 PM
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Originally Posted by RETed
I've seen those MSD SS Blaster e-core coils fail.
Lots of people complain about them - for <$40 each, you get what you pay for!
Lots of people complain about them - for <$40 each, you get what you pay for!
11-15-05, 08:00 PM
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I'm in the process of upgrading my ignition system so I've been getting my thoughts cluttered by the possibilities.
Two questions I pose:
1) Are the Mercury coils of extraordinarily low primary resistance?
2) If so, will driving such a low resistance coil lead to overloading/overheating most CDI units (i.e. MSD, Crane)?
Two questions I pose:
1) Are the Mercury coils of extraordinarily low primary resistance?
2) If so, will driving such a low resistance coil lead to overloading/overheating most CDI units (i.e. MSD, Crane)?
11-20-05, 09:35 AM
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I have used Crane LX-92 with my 500R. No problems there and I dynoed 580hp@the flywheel. My 500R has the high power mod and the coils seems to hold up well. I have 4 of the mercury's lying around too, but havnt got around to using them.
11-23-05, 08:28 PM
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OK, got the four Merc Marine coils from oldmerc.com. First thing that I did was measure the primary coil resistance on two of the coils, it was .4 ohms. This is far more than I expected and more than most aftermarket coils. I have no way of measuring the secondary resistance. Perhap some in the audience know this importance coils spec, and would like to share it.
That said, I'm not sure why ANY aftermarket CDI would have any trouble firing them. Though the proof will be in the pudding when I dyno the new setup, and unexpected deployment may put those results off for about 18 months.
That said, I'm not sure why ANY aftermarket CDI would have any trouble firing them. Though the proof will be in the pudding when I dyno the new setup, and unexpected deployment may put those results off for about 18 months.
Last edited by carlos@the-rotary.net; 11-23-05 at 08:31 PM.
11-25-05, 07:11 AM
#14
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Originally Posted by carlos@the-rotary.net
First thing that I did was measure the primary coil resistance on two of the coils, it was .4 ohms. This is far more than I expected and more than most aftermarket coils.
I think some of the "hotter" aftermarket coils run under 0.2-ohms.
I have no way of measuring the secondary resistance. Perhap some in the audience know this importance coils spec, and would like to share it.
That said, I'm not sure why ANY aftermarket CDI would have any trouble firing them. Though the proof will be in the pudding when I dyno the new setup, and unexpected deployment may put those results off for about 18 months.
-Ted
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