Quote:
Originally Posted by scott70
So I pulled out my dui small bodied hei and replaced it with a msd 8528 RTR dist. Also installed 8.5mm FAST wires at 25 ohms. Using the same coil Flamethrower. 18 degree advance bushing and a medium and a light spring that at the moment is totaling too early(around 2200) so i will put 2 mediums in and try it. 32 total. Reading around 14 initial.Anyways i went out to try it and now if you punch it while cruising slowly in 1st it will roll the tires some and wont break them loose at all cruising in 2nd and go WOT. With the DUI dist it would blow the tires away cruising in 1st or 2nd gear and just floor it. Doesnt skip or miss while running through the gears. It does seem to run a little rougher initially when you first start it . Checking voltage Ive got 12.2 at the batt with key on and 11.77 at + side of coil. Running Ive got 14.5 volts at the battery and 12.65 volts at the + side of coil. Will it run right with these voltages?
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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.