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Author Topic:   ignition problems
Dirt Maniac

Total posts: 170
posted June 15, 2004 03:12 PM  
has anyone used the hei gm ignition module on their ford ministock. i got a wild hair and decided to try the system as described in steve smiths mustang ministock book. after 6 hours and 150.00 bucks for the echlin parts - we still cant get it to fire.
what gives? i double and even triple checked everything from the wiring to even taking the module back to be checked.

Dirt Freak

Total posts: 303
posted June 15, 2004 06:39 PM  
speedyd1,check your pm`s

Dirt Newbie

Total posts: 1
posted July 04, 2004 02:42 PM  
did you ever figure this out?
The steve smith book is wrong.

Here you go.

1st the mounting screws are the ground. No mounting screws = no fire

3 wires coming out of dist.

Ground the black wire.

Dist end of module is...

Orange wire to W.

Purple/brown(dark colored) to G.

car end of module... this is like DUH C=coil B=battery (igntion switch)

Coil wire to C. Note-if your not using an E core coil you need a capictor

Ignition/battery wire to B.

GM HEI is a great system. It really stablizes the firing pulses over 6500 rpms. Duraspark is actully better below 5k. That is why we switch for the higher RPM's. It is really apparent when using an O scope and looking at the firing trigger.

Hope this helps if you havent already gotten it!

Dirt Freak

Total posts: 370
posted July 04, 2004 08:43 PM  
I agree 13. The firing pulses are much better above 5. And yes the Smith book is wrong. I think you covered all the bases. Secondly use 8mm wires. 7mm get a little hot and tend to hurt continuity with HEI setup. Actually stock wires are better for standard ford box.

Dirt Maniac

Total posts: 170
posted July 06, 2004 06:38 AM  
we finally figured it out. the drawings were definitelt wrong. we swapped two wires and she fired right up. ran it for the first time last week and wow - what a difference.thanks for all the help guys.

Dirt Maniac

Total posts: 175
posted July 09, 2004 12:33 PM  
if you spent 150 to get your car to gm you need to take it all back i done mine for little to nothing and its very clean. a little tip though. the gm ignition will go out eventually if you bolt another one right next to it you will have a backup at all times. it saved me last weekend.

Dirt Full Roller

Total posts: 47
posted August 25, 2004 11:34 AM  
I have found that there are several different gm modules, $15 and up.
Will any work and is there one that is better for this setup.

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