3.0 sho engine airboat build

[turner]

I'm in the process of building an airboat with the 3.0 sho motor,is there a standalone wiring harness out there?wiring is my main scare about this project cause there seems to be a lot of it.also need to flip The intake which requires more wiring issues from what I've read.I couldn't really find a straight answer anywhere on other forums.

 

[sperold]

You will need to adapt the harness and engine control module from the body of the car the engine was removed from.
That is your cheapest choice.
People have abandoned the Ford management system and used aftermarket units that use a different shutter wheel on the crank, so it has been done.

 

[turner]

You will need to adapt the harness and engine control module from the body of the car the engine was removed from.
That is your cheapest choice.
People have abandoned the Ford management system and used aftermarket units that use a different shutter wheel on the crank, so it has been done.

I got the whole car still,with harness and ecm ete

 

[sperold]

There is a lot of information here:

http://www.shoforum.com/index.php?threads/how-to-wire-a-sho-motor-in-something-else.115598/

 

[turner]

I seen that post but I seen that the 3.2 is different,when it comes to which wires to use

 

[Off Road SHO]

It's not that much different and if you have the wiring diagram for that model year, you'll be able to do it yourself.

So are you going to have some sort of gear reduction to keep the prop tips from going supersonic?

Have you built one of these before?

Tom

 

[turner]

No but I have a few friends that build airboats,I'm going to run direct drive for now ,maybe down the road I'll go with a belt or a gearboax reduction.I found a pin out for my ecm and it looks easy enough,but then when I look at my harness it gets a bit confusing,guess I'll just cut out everything I don't need like a/c ,powersteering ete ete.I'll post some pics when things come together a little bit more

 

[Off Road SHO]

I cut all the connectors off my wiring harnes and then built a new harness to match the exact lengths I needed for The Other Woman. SOOOOOOO much easier in my opinion.

The prop can cause the rod and main bearing to take a beating from the 5-6' flywheel that is the prop. Belt drives absorb most of the shock load.

Tom

 

[turner]

Yeah I didn't think about my bearings being beat on,probably have to look into a gear box sooner than I wanted too

What all is needed on the harness to make The engine run? Do I just need the ecm or is the ccrm needed too?

 

[Off Road SHO]

The Relay module is a collection of all the relays that are used to run the engine and the fans and the fuel pump. It's expensive and hard to find so I just put in my own separate relays. In that way, if one goes out, I only have to replace that one.

Tom

 

[rubydist]

the newer Ford products have the power distribution box under the hood with a bunch of plug in relays. I would get one of those from an Explorer or similar and wire it to use those plug in relays. the relays are in the jy by the hundreds and you can buy them new at Ford for like $15 if you have to.

 

[turner]

I just got all the PDF files of the wiring for engine control,seems like its gonna be a lot of work lol,a wish painless performance or a similar company could make me a basic harness.I can prob figure it out but its gonna be a mission...SO if someone can build me a basic harness just to make the engine run,only thing the motor will be running is an alternator I'll pay ya lol

 

[turner]

Heres the wiring diagrams for 1993 3.0 SHO engine control,if anyone is interested

 

[shomethe$$$]

Heres the wiring diagrams for 1993 3.0 SHO engine control,if anyone is interested

I like this one

http://taurus-club.ru/manuals/Ford_Taurus_1994_wiring.pdf

 

[Off Road SHO]

See, I don't get it. How hard can it be to follow the lines and build your own harness. If you can splice two wires together with crimp-on wire connectors or use solder and heat shrink, you can do this. It's like putting a new plug on an extension cord.

Tom

 

[turner]

See, I don't get it. How hard can it be to follow the lines and build your own harness. If you can splice two wires together with crimp-on wire connectors or use solder and heat shrink, you can do this. It's like putting a new plug on an extension cord.

Tom

Oh yeah I can do that part! Its just figuring out what all has to be there I guess,and how some sensors have more than 2 wires going to them makes it a little confusing,and half the harness ive pulled out from under the hood seems to be the ABS wiring ,I can figure it out tho I'm sure

 

[Off Road SHO]

I'm sure you can. Some sensors just need power coming into them and then the return line is measure by the computer. Some sensors need 12v power to operate but take in a 5v signal and return what's left to the computer. I can make another thread titled, "how to wire a 3.0 SHO motor in an airboat" if you need specific step by step.

Tom

 

[turner]

I'm sure you can. Some sensors just need power coming into them and then the return line is measure by the computer. Some sensors need 12v power to operate but take in a 5v signal and return what's left to the computer. I can make another thread titled, "how to wire a 3.0 SHO motor in an airboat" if you need specific step by step.

Tom

Oh OK,yeah that would be awesome!! Lol it would be useful for more than just an airboat too, like mud truck ,drag car ,rock crawler ete

 

[rubydist]

Tom, all you need to do is change the title on the thread you already wrote about putting a SHO motor into something else...

 

[shomethe$$$]

Something is amiss here, if you have the whole donor, why do you need a harness made? You just don't need a harness made.

I don't know if your using a ATX donor or MTX, I had an MTX donor and the wiring was easy. Like I said before it is one 16 pin plug near the trans that goes into the firewall, this is the one that you pretty much have no choice but to cut. Most of the wires go to the dash, ignition, interior fuse box and to the fuel pump, its not that hard to follow with the wiring diagram. You'll have a few other plugs, one goes to the cruise unit, another to the EGR purge system, one to the ABS (not needed), one 8-pin near the brake booster, coolant reservoir level sender and thick plug wire for the fan.

You don't need to make a new harness, the system is pretty much standalone, its like the engineers knew the engine would last longer than the body and knew that people would make this swap over and over. Do not confuse the OP into thinking sensors need this voltage or that voltage, the system is already hooked up that way, all of them have one return wire already routed back to the ECU. It just needs to be powered and grounded.

The only lesson I learned was the charge light on the dash must be hooked up to the alternator plug because it provides a bit of resistance to the charge circuit. I'm not sure why, without this the alternator will overcharge.