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Chevette Coil - Dwell Settings

Posted: Mon Dec 12, 2011 12:14 pm
by chevette
Hello

I have run MS1 with fuel delivery only on a Chevette for a year or so, and am upgrading to MS2 for Ignition.
The MS1 Setup uses a TBI unit from a Fiero 4cyl Iron Duke Engine, all I had to do was make an adapter plate for the 4 bolt to 2 bolt and has been very easy and reliable.

The Chevette uses a 4-pin HEI setup with remote coil and uses the same huge 8cyl housing distributor run from the crank, except using a 4point VR sensor instead of 8. The signal is clean. However, I'm hoping someone has already setup a coil similar to the one I'm using, and I can forward me some dwell settings. The coil is marked 8M12, and I believe is common for V8's.

Re: Chevette Coil - Dwell Settings

Posted: Wed Dec 14, 2011 5:20 am
by WASyL
have You read this one: http://www.megamanual.com/ms2/GM_7pinHEI.htm :?:
4 pin module - electronic ignition, but doesn't do computer timing control, top left
So propably You will need to swap to 7(samll) or 8 pin ignition module.
As for dwell, i use MSD Streetblaster2 remote coil and use dwell at around 2-2,5 ms, my setup is TPI alike but all of these are simmilar

best regards