V6 To V8 Distributor Wiring Help
#1
V6 To V8 Distributor Wiring Help
I am just about finished with my 3.1L V6 To 5.7L V8 swap in a '91 RS. I installed an old style 350 with a vaccuum advanced and a coil-in-cap distributor. I only have a plug on there for the pos & neg to the coil. Problem is I have 2 plugs that were on the V6 harness. One was the pos & neg to the external coil and the other was a four wire plug to the pickup module on the distributor. If anyone could help me figure this out, I would appreciate it, thanks.
#2
Supreme Member
Re: V6 To V8 Distributor Wiring Help
the four wire plug you no longer need, ignore it, it goes to the computer,
you need a ignition switchcontrolled hot wire for the BATT spade on the HEI cap and you need your tach wire for the TACH spade on the cap,
and thats all- very simple
figure out which is which on the v-6 harness
spade crimp connectors fit the spades in the cap, or you can salvage the plug ends from a parts car or truck from 75-86
any left over wires tape the ends up or remove the computer and entire passenger side harness if you dont have lockup converter
good luck
you need a ignition switchcontrolled hot wire for the BATT spade on the HEI cap and you need your tach wire for the TACH spade on the cap,
and thats all- very simple
figure out which is which on the v-6 harness
spade crimp connectors fit the spades in the cap, or you can salvage the plug ends from a parts car or truck from 75-86
any left over wires tape the ends up or remove the computer and entire passenger side harness if you dont have lockup converter
good luck
#3
Re: V6 To V8 Distributor Wiring Help
I found the wires and hooked them up. I am now not getting any spark when I turn it over. I re-checked all my grounds, all the grounds that connect to the bellhousing are on, I have a battery to engine ground, and an engine to chassis ground.
I tested them all and i get the complete circuit beep from my meter. When I check the power and ground wires that go into the cap, I get a complete circuit, but when I turn the ignition on or when I crank it, I loose the complete circuit.
What else can I check or what am I missing? I know its only something stupid, I hope someone knows.
I tested them all and i get the complete circuit beep from my meter. When I check the power and ground wires that go into the cap, I get a complete circuit, but when I turn the ignition on or when I crank it, I loose the complete circuit.
What else can I check or what am I missing? I know its only something stupid, I hope someone knows.
#4
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Car: 89 Iroc z camaro
Engine: 350 TPI
Transmission: Auto
Axle/Gears: stock
Re: V6 To V8 Distributor Wiring Help
I know this is an old thread I just hope someone looks, could a v6 distributor with a v8 cap make your tach read wrong? Mines off horribly and the guy I bought it from said he replaced the distributor, is there a way to tell wich one I have?
#5
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Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
One Night CAP Too Many
If the engine runs you have the correct cap.
There is circuitry in the dash near the tach.
It’s contained on a small plug-in PCB or integrated in the main board.
On or near the PCB you’ll see a capacitor, replace it.
Also on the PCB you’ll see a resistor chip.
Desolder pins 4 & 10.
Use a 500K potentiometer.
Solder it across traces 4 & 10.
Move the potentiometer to half way.
Start the engine and compare the tach reading with a test equipment quality tach.
Dial it in, unsolder the potentiometer, measure it and install a matching resistor.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Didn’t Jump The Start, The Flagman Was Late
.
There is circuitry in the dash near the tach.
It’s contained on a small plug-in PCB or integrated in the main board.
On or near the PCB you’ll see a capacitor, replace it.
Also on the PCB you’ll see a resistor chip.
Desolder pins 4 & 10.
Use a 500K potentiometer.
Solder it across traces 4 & 10.
Move the potentiometer to half way.
Start the engine and compare the tach reading with a test equipment quality tach.
Dial it in, unsolder the potentiometer, measure it and install a matching resistor.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Didn’t Jump The Start, The Flagman Was Late
.
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