How easy is it to install an msd box and 2 msd blaster 2 coils. Im not planning on doing direct fire, just 2 new coils and an msd box. Anythign else i will need to order to install this?

 

MSD through the cap equals burned caps and rotors (you'll be changing them a bit more often than before). If I were you, I'd get an FC leading coil and run it direct to the leading plugs; couldn't be any simpler than running an MSD through the cap, but has greater benefits. Then you could move the trailing high tension wires to the leading part of the cap to take advantage of the carbon button.

Well, that was my two cents.

 

when you say more often, do you mean monthly or what

 

Its possible. My friend installed an Accel super coil in his '79 Mustang 2.8 V6 and was going through caps and rotors monthly.

As for the MSD with its multi-spark capability, I'm not sure. Why not just do the direct fire? Since you've got to wire in the MSD anyway, both ways are similar in difficutly/effort. I'd say go for the gusto!

 

how much more do i have to buy for it thou, im kinda limited on cash. Other htan MSD box and 2 new Blaster coils wat else

 

MSD box and one blaster coil or no blaster coils (just keep using the stock Diamond coil for trailing) and one used FC leading coil from your local parts yard or a fellow forum user. Infact, the only real expense will be the MSD box. You could look on eBay for an unopened 6AL for the same price as a new 6A. That'll probably save you $50 right there. The FC leading coil is really cheap. I got mine when I traded a guy some of my leftover 20B stuff.

I don't recommend hooking the MSD to two coils. If you know anything about parallel wiring and the MSD's output characteristics, you'll catch my drift.

 

i was planning on just running the msd on the leading coil

 

I know something about "parallel wiring and the MSD's output characteristics" but I don't catch your drift. Care to elaborate?

 

this dude from the forum got some nice direct fire kits readily available to public.. price is decent too

https://www.rx7club.com/showthread.p...hreadid=320508

 

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damn internet

 

damn internet

 

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Parallel wiring to the coils cuts the MSD's output amperage by 50%. The main problem here is that the MSD takes 12V from the car's electrical system which is a high amp, low volt power source and converts it to aprox 400 volts which is a high volt, low amp blast and is capbable of causing a normal kettering style coil to behave like a simple step-up transformer.

When you hook this high volt, low amp power source to two coils, the already low amperage, to begin with, ends up reduced by 50% by the time it reaches both coils. This didn't sound like a very good idea to me way back when I first read about it on Paul Yaw's site, and it still doesn't.

What you're left with is an anemic spark on both leading plugs which I wasn't very impressed with. I have yet to try the MSD again, but this time with an FC leading coil. It should work better with the MSD's output. The reason why is because the FC leading coil has only one internal primary coil and two secondary coils. Again, I think it will do better because the MSD only has to saturate one coil instead of two, thus this one coil gets 100% volts and amps. The two secondary outputs don't seem to mind sharing a primary coil, even if one plugs is fouled or otherwise has more resistance than the other (my bench testing has sort of 'proved' this, if you will). I can't wait to get the parts to rebuild my 12A so I can try out this ignition system on it.

 

d0 Luck = octo-poster.

 

The voltage (and current) that feeds the spark plugs comes from the coils, not the MSD. All the MSD needs to do is supply enough current to the coil to break the current flowing within the primary winding of the coil. If you measure the voltage spike across the spark plug from a coil fed by an MSD compared to two coils fed by a single MSD, they should both be the same.

 

wow....that was FU*KING awsome.....an octo post

 

I think you misunderstood me entirely. The voltage (and current) that feeds the coil(s) comes from the MSD.

 

Nah there's no need to go with directfire.

Your setup w/ the MSD6A and two blaster 2 coils is the same setup i'm running. I've put almost 2700 miles on the car (everywhere from daily driving, drag racing, street racing, and long distance driving), and it works great!!!

You want to wire up the MSD to the leading ignitor on your dizzy, and to the leading coil as well. The trailing would also benefit from an MSD unit, however you would notice not nearly as big a difference.

I put my MSD blaster coils in the stock location.

If you have any questions feel free to pm me or email me!!

 

I beg to differ. Just because you're reluctant to try it doesn't mean there's no need for it.

Also, even Paul Yaw doesn't recommend hooking the MSD to the ignitors. Who told you to do that? Did you even try the green and purple wires?

Third, who in their right mind thinks trailing needs an MSD anyway? I know some have done it, but it is totally unnecessary. Of course saving money on ignition components has been my stance from the very beginning.

I've tried trailing on and off while driving and didn't feel anything with my direct fire on leading setup (I think the extra leading spark takes over when trailing isn't available... need to dyno test to know if there is a difference).

And finally, you shouldn't put blaster coils in the stock location. They will die quickly. Just ask anyone who tried it and had to buy new coils. The Blasters need to be mounted vertically for some reason.

I wish you luck even though I know your setup isn't as good as it could be. Oh well, it's your car and you can do whatever you want. Have fun out there.

 

People have been running blaster 2 coils in the stock location for years without problems. They are designed exactly the same way as stock coils are.

Have you ever tried my ignition setup exactly how i have it wired?

Robert in california has RACE PROVEN that this setup works best. He has tried all sorts of "direct fire" setups in attempts to gain that extra little oomph at the track. Of course he would, he wants his cars to be faster!!! He has told me time and time again not to waste my time and effort trying to make a direct fire setup. He said this is the tried and true race proven way to improve you ignition setup.

Call me stubborn but i just go by what i know thru a specialists' experience.

And i dont need your "luck" on anything my car runs great and has for 3 thousand miles on this setup.

And yes, mr. sassy pants it IS my car and i CAN do whateve ri want with it.

And i DO have fun "out there"

dood whats with all your snippy remarks, there is no need. I'm just giving this guy an alternative opinion to the one that almost everyone on this forum shares.

All the guys i know who have done the direct fire setup around heree have said "yeah... i GUESS it runs a little better...."

When i isntalled my MSD setup, i was like "HOLY SH**!!!!!" because it made such a huge improvement.

So you like your setup, and i'm fine with mine. No need to be condescending and snippy. Its just another opinion apart from yours. Doesnt mean either one of us is more correct than the other. It just means you've have good experiences with your setup, and i've had great experiences with my setup.

 

FWIW, I ran blaster coils in the stock location without any problems for years. They're the same design as the stock coil anyway.