Quote:
Originally Posted by Schurkey
1. Put the DUI back in. Clearly it works better.
2. Why would the MSD need more voltage than the "small-bodied HEI"? Especially when using the same coil.
3. 12.2 at the battery with key on seems far too low. I'd expect 12.5 or better. What's wrong with your battery/charging system? Or do you have a high electrical load when the key is on? I'd be looking for 12.6--12.7 with the key off--no load.
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I've got 3 gauges in the car that light up when you turn the key on. Maybe I didn't have the right voltage before and the msd is more sensitive...I don't know. As I ran the car the batt sitting voltage came up some and the running volts went down a little. Like youd expect.
Im going to try working with it some more and If it doesnt respond I will throw the dui back in and see if the punch comes back. its not like it lost a bunch of power. But it did go from lighting up the tires by just punching the throttle rolling in 2nd to not even a squeak now.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007
(cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD
1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.64 @ 87.3 mph on slippery street tires.Bad 2.25 60ft.Owned since 86'
Last edited by scott70; 07-12-2021 at 09:31 PM.
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