want to increase fire(should say ignition fire) in my motor

have looked at most all would like to see people chine in their
experiances with any thing tryed on a 335 series motor

now personally am a big fan of the blaster 2F coil on durasprk
ignitions
direct/good plug ang play and 100:1 windings unlike most manu's
60-75:1 windings

and recently come across msd's relacement for the durasprk box
(not a piggyback like blaster/hyfire/6a)I read 3x the power and
15 degrees of timing ajustment from the dashboard
has anybody tryed them??

sounds nice lots more spark and NO cut wires or ugly adapters

ps what is with all the stick threads?

 

sounds good, but spendy. I ran msd 6a, or 6al I can't remember, it was the cheap one with out a rev limiter. And a Blaster, or blaster two coil, (I guess I can't remember anbything). The coil went out and I got another one that hasn't died yet. The first one only lasted.....well it lasted on 4x4ing trip and died on the way home. The motor was cool by then, so I don't know what happened to it. The second one has been on there for years.

 

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Yea we have the MSD setup
8580 Distributor with 24 adjustable mechanical advance curves ( 6 curves and 4 stops) It Includes all the springs and stops for the 24 possibilities.
6470 MSD 6-Offroad Ignition Control
8680 Adjustable timing control
14001 Accel super coil and spiral core wires.

Its on a 400 bored .030 over with bushed rods and KB-149 pistons
With these pistons the compression height resulted in 1.67 and that yielded a deck clearance of .047
Crane cam and roller rockers, springs, etc
The piston combo yields Static compression of 11.2 with effective compression at approx 8.87 with the intake closing at 65 degrees ABDC. The calculations yield 187 psi cranking compression. We measured 185 with a snap-on gauge. So were close on the calculations.
Anything less than 200 psi is pump gas capable I believe. So far anyway it runs on 91 Octane.
Have a 160 thermostat on a 3 core new stock radiator. It runs 180 to 190 most of the time in 90 degree weather…
Needless to say the MSD is an awesome setup for us.
It allows us to crank the engine with no problems when it hot. We just pull out timing with the dial.
We have the initial settings to match the numerical values on the dial. So we start it at 5 or 6 degrees then crank it to 15 degrees ( 18 degrees is all the way clockwise past the 15 degree mark).
Add 15 & 21 degrees of mechanical advance for total of 36. The distributor is also awesome. With that much compression the ability to change the advance curve is a must. The stock curve was just too aggressive.
Got a tank of gas that isn’t as expected… a little pinging.. just pull out a couple of degrees… no problem….
Engine cool .. want more zip.. put in a few degrees… Oh.. got warm in the weeds .. pull out some.
The possibilities are almost endless.

We didn’t get the rev limiter but I am sure the first axel we break in the mud will seal that deal…

The off-road version is all sealed up and the connectors are water tight. It comes with vibration mounts as well. Once you have the three pieces connected per the diagram, then all you need is battery power and a 12 volt signal from the ignition switch. Then throw all that other ignition stuff away.
The MSD really woke up this motor. We just didn’t have enough fire to keep it lit using the duraspark and the super coil. The MSD will fire multiple times as necessary to cover 20 degrees of the crank up to 3,000 rpm. After that it is a single spark. There isn’t enough time to fire it more than once past 3,000 RPM’s so they say. Of course there is a tach wire as well.
With the off-road unit they have a special rev limiter that plugs into a water tight plug supplied on the control unit.
All the cable needed are supplied..

Seeing is believing!!
Take a stock setup, remove the distributor and ground it in such a way that you can spin the shaft. Take the coil wire and run it to a spark plug that is grounded some where so you can see the ark ( Away from the Battery!!! ). To be fair, get a battery charger and boost the battery voltage to 13.8 volts or so.
Now turn on the ignition and spin the dist by hand and observe. Then add a super coil. There is some difference. Hook a drill on and then spin at say 500 rpm ( simulating engine 1,000 RPM)

Now do this with an MSD ignition. BIG difference !!!!
The MSD will also operate down to 5 volts so they say…

Yea it’s pricey… but it is worth every penny.

The only thing I would do differently is get the smaller distributor (8577). The air cleaner had to be raised cuz the 8580 is taller than the stock distributor.

David

 

You need a distributor with vacuum advance also for efficient running on the street. Otherwise it will kill your mileage.

 

well the msd 5=85/6a=150 and the msd #8778 duraspark
replacement is 160
the 2f coil is under 40 these are summit prices so 10 bucks more
to buy from a good company like paw that lists bronco/400 parts

so 200 and we should have good fire

but back to the point
the blaster2/2f is oil filled and if the thing isn't verticial or the
windings don't stay covered the thing will burn up
the blaster 2 hi vibration is epoxy filled could be mounted upside
down if you like or in the stock location(at a angle strapped to
the motor)

this is the only problem i see with my plans
i have two options fab a new bracket to keep it vert or move it to
the fender well
maybe the rad support as soon as i get a electric fan mounted
what ever is closer and stable

i had one in my 81 escort but it stranded me so i sent it to the shreader coil and all remember it next time you open a can of dinty moore or cambell's * *sobs* *