7-Pin Module Help
Thread Starter
Junior Member
Joined: Aug 2011
Posts: 11
Likes: 0
7-Pin Module Help
I currently have a 4-pin HEI distributor.
I want to convert to a 7-pin module so I can get a clean square wave RPM signal for my Fitech Meanstreet.
Research says that pins C and A on the Weatherpack plug need to be jumped together for the distributor to work. These pins correspond to pins B and E on the module per the diagram I found.
What does jumpering these pins together do electronically to make the distributor function without the EST module?
If I jumper these pins, can I still get a square wave signal from pin R?
Also, will the distributor still function normally as if it still had the 4-pin module?
Just to clarify, I want to retain the original mechanical and vacuum advance. I am just looking for a clean square wave RPM signal for the Fitech ECM. This particular Fitech is not capable of timing control.
I want to convert to a 7-pin module so I can get a clean square wave RPM signal for my Fitech Meanstreet.
Research says that pins C and A on the Weatherpack plug need to be jumped together for the distributor to work. These pins correspond to pins B and E on the module per the diagram I found.
What does jumpering these pins together do electronically to make the distributor function without the EST module?
If I jumper these pins, can I still get a square wave signal from pin R?
Also, will the distributor still function normally as if it still had the 4-pin module?
Just to clarify, I want to retain the original mechanical and vacuum advance. I am just looking for a clean square wave RPM signal for the Fitech ECM. This particular Fitech is not capable of timing control.
Joined: Mar 2017
Posts: 4,255
Likes: 427
From: Portland, OR
Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: 7-Pin Module Help
Just use the coil negative. That is the RPM signal.
GD
GD
Thread
Thread Starter
Forum
Replies
Last Post