high peformance igntion coil
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Junior User
Joined: Feb 2004
Posts: 67
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high peformance igntion coil
im thinking of buying a 60,000 volt coil from jcwhitney. my question is with my point-style igntion system will the new coil cause any damage? will it increase peformance at all?
Postmaster
Joined: Jul 2003
Posts: 3,934
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From: iowa
to your question, I don't believe it will cause any damage or really increase performance. If you get the coil and have good plugs and wires it might help. But i look at it this way. If you had a big carb it should do more than have a smaller one. The increased spark would burn up the excess gas but if your motor runs lean or good I don't see how it would help a lot. It might allow you to richen the mixture and will provide more power increases then but the mpg would suffer. But it does when you talk power anyway!
Post Fiend
Joined: Sep 2000
Posts: 8,238
Likes: 3
From: Oregon
No. A hotter igntion/coil will not damage anything. It can reduce the lifespan of plugs, points, etc. I hadn't seen a 60,000 volt coil before either and I certainly would think twice about buying ignition components out of jc whitney. There are more bad "performance" coils out there than good ones.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
I've done the cheap coil thing (Accel). My MSD keeps me happy. If you need more spark than that then get an MSD 6A. No coil alone can match it or any of its equivalents.
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Posting Guru
Joined: Jul 2003
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From: Colville, Washington
The points are the limiting factor in getting any increases out of a hi-output coil, because the points control coil saturation time via the dwell. That's why ANY electronic ignition will put out more voltage than a points system , and more consistently.
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Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Originally posted by Putt
The points are the limiting factor in getting any increases out of a hi-output coil, because the points control coil saturation time via the dwell. That's why ANY electronic ignition will put out more voltage than a points system , and more consistently.
The points are the limiting factor in getting any increases out of a hi-output coil, because the points control coil saturation time via the dwell. That's why ANY electronic ignition will put out more voltage than a points system , and more consistently.
My brother was telling me a story of his old mustang (I'm thinking it was a '72) that used points. He would run it up around 7000 rpm, and it had power up there! Anyway, he tried cheap points, and there was fire shooting out the exhaust at that engine speed. So the quality of them does matter.
I like to use Blue Streak points on my truck, with an Accell Super Stock coil. It puts out 42,000 volts, which is more than stock, but wont fry anything. It seems to work good.
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Go to carquest, and ask for their premium points. They'll give you Blue Streak points, which are the best IMO. That's what my brother ran in his mustang FWIW.
If you dont have a dwell tach, get one, as it's essential when you set points. Set the dwell to 28-30 degrees.
Good luck!
If you dont have a dwell tach, get one, as it's essential when you set points. Set the dwell to 28-30 degrees.
Good luck!
Posting Guru
Joined: Jul 2003
Posts: 2,232
Likes: 1
From: Colville, Washington
I agree the point quality is important and Blue Streak is as good as it gets. The prob is after running for a while the dwell changes due to point and rubbing block wear--it doesn't change with electronic and it is more than what you can get with points.
Senior User
Joined: Feb 2004
Posts: 123
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From: North Carolina
Lose the points FAST! get a good reman electronic pick up DIST and at least a dura spark module. I would go with the MSD 6A if you can swing the money right now. also remember that even with a stock electronic IGN ststem you are limited by the amount of DWELL or coil build up time. any after market CD system is the tops. Capacitive Discharge uses a bank of capacitors to store the juice not the coil. if you go with a CD system remember to use quality wire and use 10 guage to feed the box from the BATT. this is where the capacitors get thier juice, so dont skimp on the wire guage here. last but not least GOOD GROUND connection.
Cargo Master
Joined: Oct 2003
Posts: 2,833
Likes: 4
From: Jefferson, Iowa
I have a MSD blaster 2 coil, and i do not see much performance difference, but easier cold starts, once the engine is running for about 5 seconds, it will sit there and idle just fine with the choke off. It is leaned up about as far as a can get it without burning out my exhaust valves.