If I use a coil that puts out 60k volts, should the plug gap change? I'm using AC Delco rapid fire #2 plug instead of r44ts. I had been using a MSD coil rated at 40k volts. Whats your thoughts Greg
What kind of ignition do you run? What compression ratio? That all figures into what gap you should run. Coil hype means next to nothing. Generally, if you have a strong ignition, you can increase your plug gap .005 at a time until your engine performance drops off. I have an MSD Digital 6 and MSD 8200 coil. MSD recommends .050-.060 for 10.5:1 compression and down, .040-.050 for 10.5:1- 13.0:1, .035-.045 for 13.0 and above. Now thats with an MSD Digital6. Just changing a coil won't necessarily call for a gap increase if your ignition can't take advantage of the hotter coil.
OK, first off, show me the 60,000 volt coil, please. I've never seen one. Plug gap doesn't change for a different coil. Does for a different system with different coil electronic drivers, though.
I'd be interested in seeing the 60,000 volt coil as well. By the way Dave, my set up was tested as part of a diagnostic tune up the other day (another story which ended badly) and the Crane PS40 Coil showed 30,000 volts through to 5,000 rpm. I'm not sure how they measured it but the guy was pretty impressed. He said that most drop off after the mid range to which I replied "so I've been told"...lol.
Dave I sent you an email and a PM regarding interest in an HEI conversion...did you get them? Greg, I noticed you live in Arnold....I have a couple friends out your way. Buick guys:Brow: Any interest in joining the BCA?
Bill, that is really good for an HEI. Usually, the high zoot, super step through, fast Eddie Bellflower in cap epoxy HEI coils make just at 21,000 volts when they get to temperature, down from about 25,000 when they are dead cold. Sure blows the zillion volt over-hype, full page and magazine article with volts info supplied by the coil company advertizing crud right out of the water, doesn't it! I'll read mail in the morning, as SpamLink (Earthlink) likes to keep me in suspense daily, doesn't send stuff until late at night.
Dave, I know you've said it a zillion times, but what is your recommendation for a coil to use with Holley, MSD, etc ignitions? I have the super-duper epoxied Holley coil they recommended with my Holley ignition. I watched the magic-blue-halo fire around it one evening until I put the plug gap back down to .040". Thanks to your past advice I knew what to do immediately. I'll bet the ricers would pay money for a coil to do what mine was doing!
There's a bunch of musical chairs in coils going around lately, Accel is now made in Taiwan, has developed problems, MSD RED Blaster II is made in Mexico, the 8223 RED Blaster III has just come back to the Americal manufacturer that still makes the 8200 chrome BlasterII, and used to make the Accel, etc, etc, etc. Andover Electrics, Andover, Indiana, IS the premier coil manufacturer in this country, makes the best coils there are. They still make: MSD 8200 Chrome Blaster II MSD 8223 Red Blaster III with HEI type wire post NAPA IC12 (same specs as the Accel they used to make) Crane PS 20 (black) Crane PS 40 (chrome) as tested by our own Bill Stacy, BuickStreet. These coils work!
