Q: Ford Solenoid Switch in Lieu of Mopar Starter Relay?
The only reason I would do so (and am) is if you are cleaning up the engine bay and re-wiring the car. A so called "Bosch" relay is fairly standardized, although there are differences, IE some are single "throw" only (normally open, close on energize) and some have double throw (normally open and normally closed) and there are different sizes. But there are a series that are "common."
My rework looks like this:
The vent has been replaced by a cut down mustang vent, the big relay box is built up from two Jeep units, with an aftermarket fuse panel above, and the Holley HP EFI at the bottom.
In the relay box you can see a micro and a larger relay, put there to test clearance for the vent. The box has room for several. They will "do everything," starter relay, horn, security, ignition, fuel pump, and two for high and low headlights.
This is what most of us call a "Bosh" relay.
Most parts stores sell variations, as well as single relay mounting sockets. Other aftermarket make multi--mount sockets, people like Hella and many others.
Below is "standard" layout for wiring
Power for the load is brought in on 30, power out to the load (starter) is out on 87
85 and 86 replace the "push on" terminals on your starter relay, IE they are the coil. One caveat........some of these have a built in diode and you must make sure you get 85/86 hooked up the right polarity. Worse, there seems to be some with the diode reversed from "most popular." Many don't have one.
The only reason I would do so (and am) is if you are cleaning up the engine bay and re-wiring the car. A so called "Bosch" relay is fairly standardized, although there are differences, IE some are single "throw" only (normally open, close on energize) and some have double throw (normally open and normally closed) and there are different sizes. But there are a series that are "common."
My rework looks like this:
The vent has been replaced by a cut down mustang vent, the big relay box is built up from two Jeep units, with an aftermarket fuse panel above, and the Holley HP EFI at the bottom.
In the relay box you can see a micro and a larger relay, put there to test clearance for the vent. The box has room for several. They will "do everything," starter relay, horn, security, ignition, fuel pump, and two for high and low headlights.
This is what most of us call a "Bosh" relay.
Most parts stores sell variations, as well as single relay mounting sockets. Other aftermarket make multi--mount sockets, people like Hella and many others.
Below is "standard" layout for wiring
Power for the load is brought in on 30, power out to the load (starter) is out on 87
85 and 86 replace the "push on" terminals on your starter relay, IE they are the coil. One caveat........some of these have a built in diode and you must make sure you get 85/86 hooked up the right polarity. Worse, there seems to be some with the diode reversed from "most popular." Many don't have one.