msd install on my repu need help
 

ok im trying to hook up two msd boxes on my repu with elec dizzy. do i diconnect the two yellow wires from the coils and hook them up to the white wires on the boxes? thanks adam

i would only use one MSD box and 3 blaster coils ajnd convert to direct fire... thats what i run and i LOVE it!!

i already have two boxes i get the rest of the wires but the white one not sure if it goes to the ignitor yellow wires and diconnect the yellow wires from the coils or not?

any one have a diagram for old school with electric dizzy?

i thinking the white wire goes to the dizzyes ignitor yellow wire and the black and white wire from the dizzy stays diconnected? thanks adam

i just need to know what the black white wire does from the ignitor and if it says on the coils positive with the msd or just leave it off

dotn use the white wire and the purple and green at the same time. if you need help, call me

I was just gonna use the white wire and hook it to the yellow dizzy wire right

thick red wire = battery
thin red wire = car ignition
black = ground

orange = coil +
black = coil -

purple and green are your trigger wires. I cant remember which is which but do a search under my SN.

white wire = dont use

Ur the best so the purple green goto the ignitor yellow and black/white stripe wires?

you have to eliminate trailing and leading igniters. you can either wire the green and puple wires directly to the dizzy's green and red (I have to double check later this afternoon).

The stock black with yellow stripe is your ignition wire...goes to MSD's thin red wire. this is your on and off switch.

I pmd you my #. call me so I can tell you where to find the wiring diagram OR if you can wait, call me tomorrow since the diagram is nailed in my garage wall for easy reference:lol::lol:

Yep, green wire in dizzy to purple wire on MSD and red wire on dizzy to green wire on MSD

That goes for both msd boxes I have two for for leading coil one for trailing coil

there are two green wires in the dizzy and two red wires in the dizzy does it matter which ones?

If you're going to use 2 MSD boxes, you're going to eliminate the igniters on the dizzy: black box facing the radiator is the leading igniter while the other one facing alternator is the trailing. so in summary, one msd will go to leading and the other to leading. be sure to mark each MSD box say leading and trailing.

why dont you just bring it over next Saturday and I will hook it up for you, or just call me. its a lot easier than going back and forth:lol::lol::lol::lol:

10 4 if I can't get it done I'll bring it by with some brewskies lol. N how do I set the box for 4 cyl mode? Thanks again Mel

post results when all is done please

ok took off the ignitors and ran the red wire on the dizzy to the green wire on the msd and the green wire on the dizzy to the purple wire on the msd and its not working no power at the coils when i put a test light and no spark?

help

The ignitor (black box) closest to the front of the car is leading. The other one is trailing. If you remove the cap, rotor and shield you will see two sets of wires. The green and red that go to the front ignitor is leading. The ones that go to the other ignitor is trailing.

Remove the ignitor and connect the green wire on the dizzy to the purple wire on the MSD. Connect the red wire on the dizzy to the green wire in the MSD.

Do not connect the white wire.

Connect the orange wire from the MSD to the positive of the leading coil.
Connect the black wire in the bundle with the orange wire to the neg of the leading coil.

Give the MSD power and ground.

lol after numerous try's i have up trying to get the msd's set up to work... but its been awhile and i think i decided to give it another go cause i think my j109 are going out and this bypasses them. ok i hooked up both msd's as instructed and nada no spark . i read msd's test procedure's and it said touch the green and purple wires together with the coil wire close to a ground and if it sparks your good, which it does. but once i hook those wires up to the dizzy red and green wire i get no spark from the coil .. could it be i have bad magnetic pickups?

Run a wire from alternator's "B' terminal to the MSD's thin red wire and trailing coil's positive terminal. If the car starts/idles fine, then you need to modify the old school stock ignition system.

i think i just need a new dizzy ignitors and all for now .. u know of one forsale mel?

Got them all. you should just tow it to LA and I will hook it up for you.

i know mel i should im just waiting time by not taking it to you.. i could probably drive it out there... i need an address to mapquest lets see how many miles it is