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RX-7 1st Gen Specific (1979-85) RX-7 1979-85 Discussion including performance modifications and technical support sections


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Old 05-24-2009, 07:38 PM   #1
leknaw
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These are the parts I used:

80 dizzy
3 good ignitors
3 MSD blaster coils
red & green wire
30 amps relay, (Radio Shack)
1 tube Heat sink
1 set Taylor custom wires, and 2ea Taylor repair kits
Some old connectors, ignitors boots
Electrical repair kit, (plugs, connectors & insulators), wire stripers
1 piece of aluminum about 2.5 x 4 in
1 ground strap
custom brackets

I chose the 80 dizzy because the wires are long enough and it was laying around for another project with MSDs.
After looking at my crowded engine bay, I chose to place the trailing coil by the battery, since is the only place that I have enough room.
I placed both leading coils in the stock position and will make a bracket for the trailing.
I made two long (36") leading plug wires with the Taylor repair kit.
Ran the 30 AMPS relay hot wire from a 30 AMPS fuse on my added fuse block. Ran the switched wire from a plug I found by the brake booster.
Cut and polished the aluminum plate, traced and drilled the holes for the ignitors screws, as well as the holes for the wires going to the dizzy.
Covered the back of the ignitors with the heat sink and placed them on the aluminum plate.
Ran the red and green wires from the coils to the ignitors and then to the dizzy as described by Jeff's write up.
Conducted a voltage test. Voltage is only going to be present on the coils and the B & C of the ignitors, (were the plugs with boots go on).
I had to crank the car a couple of times and move the distributor around to get it gone. Once it fire up, I had to adjust the fuel/air misture a bit.
After adjusting the timing the car idles nice and easy. I accelerated it several times and it is obvious as to how much quicker it revs up. I have yet to take it on the road. I have to place the battery tray back in place, ( I took t out to clean it and coated with rubber undercoating), and secure the trailing coil.
I am getting a custom battery box with a mount for the coil made up this coming week.

Hope this is helpfull and not at all confusing.
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