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Re: Is MSD the best?? [Re: fast68plymouth] #2583514
11/27/18 01:23 AM
11/27/18 01:23 AM
Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
hemi-itis Offline OP
I Live Here
hemi-itis  Offline OP
I Live Here

Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
Originally Posted By fast68plymouth
Uuummm....... the engine is going 27% faster than the driveshaft?
Where in the run was that happening?

Not the finish line I hope.

I never programmed the DS sensor,that was at the shift.


HEMI-ITIS has no cure.
My condition is fully BLOWN!!
Re: Is MSD the best?? [Re: hemi-itis] #2583676
11/27/18 02:26 PM
11/27/18 02:26 PM
Joined: Jan 2008
Posts: 2,363
Cotati, CA
Dave Hall Offline
top fuel
Dave Hall  Offline
top fuel

Joined: Jan 2008
Posts: 2,363
Cotati, CA
With the HVC-II coil #8261, MSD recommends a .020 plug gap. Guys running boost and high amp mags run .010 or less.

Re: Is MSD the best?? [Re: Dave Hall] #2583700
11/27/18 03:12 PM
11/27/18 03:12 PM
Joined: Mar 2007
Posts: 3,285
West Coast, USA
jbc426 Offline
master
jbc426  Offline
master

Joined: Mar 2007
Posts: 3,285
West Coast, USA
Originally Posted By Dave Hall
With the HVC-II coil #8261, MSD recommends a .020 plug gap. Guys running boost and high amp mags run .010 or less.


This is the first time I saw this. I had that coil and it melted the tip off the rotor. I was running .040 gap. Makes sense why it would burn up the cap & rotor now, but I bet the phasing being so far off didn't help either.


1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
Re: Is MSD the best?? [Re: hemi-itis] #2583722
11/27/18 03:40 PM
11/27/18 03:40 PM
Joined: Jan 2008
Posts: 2,363
Cotati, CA
Dave Hall Offline
top fuel
Dave Hall  Offline
top fuel

Joined: Jan 2008
Posts: 2,363
Cotati, CA
The 8261 is a racing coil made in house. Not needed on a street car. The 8251 works great with a 7 series box on the street. I've been running one since about the turn of the century.

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