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anyone looking to give advice ,show pictures of there projects in progress and
hotrod tech ...
Latest Activity: Mar 16
Started by walter young Oct 13, 2014.
Started by jason deussen. Last reply by Keith Baumgarner May 18, 2014.
Started by Russell A. Sweet Jan 31, 2014.
Hey guys, I have not posted much in a while. I am just did the Dyno tuning on the Charger yesterday.It made 841 HP and 830 Torque to the wheels.I am still working on the hood when I get it done I will post pics
And you need to check your coil before removing the resistance, as the Pertronix or MSD both like 12v. to them, but not all coils have enough built in impedance to remove the resistor. If your coil doesn't have enough internal resistance, it will melt down if given a full 12v. input.
I'm referring to spark output to the plugs, which isn't controlled or set by the distributor, but can be affected by coil output. The MSD 6A and 6AL both put out a very high voltage spark, which is magnified from whatever the coil puts out. The MSD box puts out between 520dcv-540dcv primary, and about 135-145 millijoules of spark output.
That 2nd number and the multiple spark feature are the real keys to making an engine perform; especially in a engine set up for hi performance where often idle rpm create a rich situation, or suffer from a spark that's too cold at wide open throttle.
I can get their Flame Thrower coil, paint it up stock Ford colors (Black with a yellow/mustard top), and remove the resistance wire to get the full 12v to the system.
Remember I'm trying to keep things looking as stock/original as possible, as least to the casual observer. These Shelby American guys can tell with a glance if you dont have the right radiator cap, but its not them I am worried about. Not going to put it in a concourse show. But I do want to show it, after its had a few 11 to 12 second passes down the track. The motor in its stock version already did a mid 13 pass.
The Pertronix is better than points, but it wont come near to the voltage output your 6a does! You can hide it under the dash, and get an extender plug to run wiring to the engine bay.
Yes, thats why its called MSD 6a, by MSD Ignition. But its a big red box that is hard to hide on a car you want to try to make look stock. The Pertronix 71281 Ignitor III Adaptive Dwell Control for Multiple Spark with Digital Rev Limiter all fits under the distributer cap, and only has one extra wire that goes to the positive side of the coil, along with the standard ground (black) that goes to the negative side. Put them both in a black heat shrink tube and a casual glance will not be very obvious that it is even there. Pertronix advertises for the Ignitor III:
I currently only have the Ignitor II. No Multi-spark (aka MultipleSparkDischarge) , No REV Limiter. I'm just looking for the MultipleSparkDischarge/Multi-Spark though, with out the big red box.
Are you aware that your 6a box already does a multiple spark?
The MSD produces full power multiple sparks for each firing of a plug. The number of multiple sparks that occur decreases as rpm increases, however the spark series always lasts for 20° of crankshaft rotation. Above 3,000 rpm there is simply not enough "time" to fire the spark plug more than once, so there is only one powerful spark."
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