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  1. David Ray

    MSD distributor guru

    Ah, the endless "dyno vs seat of the pants" setups. Completely different results, dyno loves excessive timing, and jetting, seat of the pants makes the engine run right. Enjoy the dyno delusion, win that dyno race, it is real world, to some that don't have anything else to attain.
  2. David Ray

    Ballast Resistor

    Wow, "Bewy", not enough personal integrity to post under his own name. Just one of those persons that hangs out at websites and causes trouble for those that are actually helping. Now, oil vs epoxy, lets take a closer look. "Bewy" has stated, or, copy and pasted that epoxy coils run more...
  3. David Ray

    MSD distributor guru

    So, just what is bad about a degrees retard in the upper RPM's???? Answer: Proven for decades, ABSOLUTELY NOTHING, in fact, it is a benefit. I have been doing this stuff for only 43 years now (novice at it, compared to some of the new day "engineers"), and have built/modified just about...
  4. David Ray

    Ballast Resistor

    As far as your efforts to build a better mouse trap, most people are far past even U-L systems, but, for them, no matter what some engineer says, do both stock and Mallory (MOPAR) resistors, there is NO loss in spark efficiency, nor output. U-L is a simple electronic set of points, same as...
  5. David Ray

    Ballast Resistor

    All the moaning I have heard over Uni-Lite failures stems from people NOT running the system correctly is amazing. I never saw Boots Mallory ever run any Uni-Lite without correct ballast resistance. All that came about after Boots died, and some know it all "engineer" spewed that "take that...
  6. David Ray

    MSD distributor guru

    Happy to help.
  7. David Ray

    Ballast Resistor

    Yes, well, when I was directly involved with the initial development of the GM HEI, we did not design the system to be a performance system, it was to build a 50K mile, low to no maintenance, consistently higher output ignition system to fire extended spark plug gaps over points system output...
  8. David Ray

    Ballast Resistor

    The reason the ballast doesn't do as much as RPM's increase, is that the number of spark events becomes closer together as RPM's rise, and when this occurs, less time in micro-seconds for the coil to charge, the points see far less current loading. This is why things like an HEI, other...
  9. David Ray

    MSD distributor guru

    Yup, that is the way a crank trigger works, for locked out mechanical distributors, WHEN THEY ARE USED WITH AN ELECTRONIC TIMING CONTROL BOX. Crank triggers ARE NOT used with mechanical advance curves inside the distributor. So, full race, crank trigger, it is obvious common sense, the...
  10. David Ray

    MSD distributor guru

    If this is truly a strip only engine, it is easy to lock the distributor out, FOR SERIOUS DRAG RACING. Take the gear pin out of the gear, remove the gear and spacers, pull the shaft assembly up, lower the rotor plate on the shaft, and see the single hole 180 degrees opposite the groove the...
  11. David Ray

    Base timing. Really ?

    THE way to do it right, well, here is this, the only way Engines like to idle with between 20 and 24 INITIAL degrees, but don't like starting with that much lead. So, how o get it right? How about 14 initial? Well, not enough. OK, lets fix it, we have the talent. Build a simple degrees stop...
  12. David Ray

    Distributor ???

    Why, yes, the email address is mine, and gives detailed info, with pictures of how to add stops to vacuum advances that have the correct vacuum level for the engine build application, but too many degrees of timing for that engine, A simple stop that separates vacuum level from degrees given, so...
  13. David Ray

    coil without ballst resistor?

    My small-body HEI conversions use a round, oil filled coil, NO BALLAST RESISTOR, and spark plug gaps no larger than .045, maximum. Oil filled coils MUST be "stood up", NOT laid on their sides. Black coils I use, O'Reilly Master Pro, 2-5195 Lets stop calling 'coil saturation time', by its old...
  14. David Ray

    Distributor ???

    8.5 distributor degrees, 17.0 crankshaft degrees, R - right hand rotation distributor. Now, want to make it easy to start, AND get between 20 and 24 IDLE degrees? If so, shoot for 14 INITIAL and add with full vacuum, 10 crankshaft degrees for a total idle of 24 degrees. A very simple degrees...
  15. David Ray

    Slant 6 HEI

    We have Black Widows here, profusely, not so many Brown Recluse. This one came in via a distributor order from Louisiana, and, yes, confirmed Brown Recluse, two days from bite to 1st operation. I took the spider to the operating hospital, 90 miles from my home, all the way to Reno, confirmed...
  16. David Ray

    Slant 6 HEI

    I have almost full function back, still need a couple of months to continue healing. All this happened August 18, 2019, over a year ago. I now get a new left hip in January, finally. Never seems to end.
  17. David Ray

    Slant 6 HEI

    Brown Recluse, dead on target. The first 4 are the bite after 4 hours, then again after 24 hours, then 3rd, just before going into the 1st surgery to fix, Renown Medical Center, Reno. The 4th is the first round after the first surgery, of the incision trying to heal. 5th and last is of the day...
  18. David Ray

    Slant 6 HEI

    I am brand new here, David Ray, owner, tech, developer and tech, DAVE's small-body HEI's. This IS NOT AN AD, it is simply info. I worked for Zora Arkus-Duntov in Skunk Works for a few years, engine design developer. and was lent to the group that designed and developed the large, coil in cap...
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