Cb dist coil

[maui]

For the guys who have it,da ting tell a 30,000 volt coil, so how is it with 7500 rpm and 40 to 45 plug gap with 2500cc and 10 to 1 Comp. Spark seams low to me.

[madmike]

You need to check out jpaull post on page 3
China distributor & tips
Great tread about spark!!!!!!!!!!
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[67rustavenger]

Maui,
Why are you running such a large sparkplug gap?

Unless you have a CDI system in the car.
You should be running a sparkplug gap near .028". That's what I run with the CB MagnaSpark II and the dry pack coil.

And yes, JPaull's "Chinese MSD clone" thread is a wealth of information on ignition systems for VW's.
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There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo!

[Lingwendil]

The CB Magnaspark coil original OEM application is Mitsubishi PN: MD146982, OEM for 1990-1996 Mitsubishi Mighty Max, Dodge Ram 50 with 2.4L 4G64 engine, recommended spark plug gap was .028-.030”

Specs from CB-
Turns Ratio: 72:1
Inductance: 8 mh
Primary Resistance: 1.1 OHMs
Secondary Resistance: 13.5K OHMs
Maximum Voltage: 30,000 Volts
Peak Current: 45 mA
Spark Duration: 2.5 mS

I wouldn’t think it makes sense to go bigger on the gap, it’s not a terribly powerful coil.
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Need replacement filters for original Kadron aircleaners? WIX #42087 is a perfect fit, as is Napa Gold #2087!

[jpaull]

Hey Maui,

The cb magnaspark coil and distributor are like one level above stock. It has a longer duration spark, but the spark is not very intense. It will work for what you have. Its simple and very low cost.

That being said, getting a setup that has a separate CDI as its power supply with a appropriate coil for that spark will be better then running off a coil by itself. Crane, MSD, FAST, etc. You have been working on that 2.5l for awhile, it deserves a healthy ignition. Is worth the time and research.

Mike and Rusty, appreciate the props The thread is a hoot, I think anyone that takes some time to go through it, can come up with a educated decision on what they want, and do it for super low cost and be reliable.

[raygreenwood]

[jimmyhoffa]

[maui]

Yea I running a DUI and hei with 45 plug gap and run good but now the timing is getting iratic so I’m looking around cuz mine one stay 11 years old. Or I could rebuild it.

[c77owen]

I've had some issues with the DUI modules breaking down on VW applications (still love them for our circle track V8 engines). Not sure why since the heat and vibration in that distributor shouldn't be any different than in a V8 dirt track car, but that could be what you are fighting.

[maui]

Mine run super good but da ting is big so I like a small one so when I checked it out it was running a iratic timing on my light 29 to 36 degrees instead of 32 so I figure it’s time for another or rebuild it to new.

[Frank Bassman]

Try a ford tfi with an HEI off a late 80s ford V8.

Plug gaps at 0.045 and better idle and response all around. Coil runs cool too compared to all else. I too had a cb coil before at 0.028 plug gaps and it fried. Not impressed.

-Frank

[maui]

got another DUI/HEI and timing is solid so I'm happy.