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Welcome to FordPinto.com, The home of the PCCA => General Help- Ask the Experts... => Topic started by: pintoguy76 on December 14, 2009, 10:16:32 PM

Title: 87 turbocoupe engine into 74 pinto
Post by: pintoguy76 on December 14, 2009, 10:16:32 PM
I need a wiring diagram or something that will show me how to hookup the wiring of an 87 2.3T into my 74 pinto. I am using an 85(?) XR4TI (from auto trans car) harness which i have switched the wires around in the computer connector already to use an LA3 computer. The computer I purchased actually is an LB3. I have a large VAM to go with it. This pinto has a point type ignition, so the voltage from the ignition switch will be 6v. I will have to dig out the resistor wire and I assume the ECU will be controlled off that wire. Thats about as much as I know at this point.

The next question is the fuel pump. What is the required pressure and volume? If the pump I buy has more than the required pressure, I'm assuming the pressure regulator will reduce the pressure to the proper level, correct?  Will this engine be able to utilize the stock pinto lines? (I believe they are 5/16") I don't plan on getting too wild with it power wise, at least anytime real soon, so i'm not worried about having a fuel system (pump and lines) to support a 500hp monster (figuratively speaking).

The stock engine is a 2.3 in this car so it will bolt right in. Might be some clearance issues with the intake, even if its not much (it is the low style intake). I know there will be clearance issues with the  turbocharger and the inner fender as well as with the battery and heater motor. I think a center mount header will eliminate those issues and if not, I will eliminate them another way. This car is a wagon, so I really don't want to move the battery into the back, inside the cab. I also don't want to lose my heater (car is NOT ac). I don't mind cutting a few holes in the inner fender, but if it can be avoided it would be great.

Also, I was told the engine I bought had a ranger clutch on it and that it was stronger than the TC clutch. Will that clutch mate up to a T5 and is it really stronger than the stock TC clutch? I have never heard that before so I thought i'd double check.

I think that might be all I need to know right now. Can someone help me any?
Title: Re: 87 turbocoupe engine into 74 pinto
Post by: Wittsend on December 15, 2009, 02:27:22 AM
Hello, I have done a similar swap. If you search my postings under "wittsend" you may find pertinant information, pictures etc.

But to breifly answer some questions:

Integrating the 87-88 harness into the Pinto is rather complicated. I basically disected out the ride control, abs etc. and then transfered the remaining harness and fuse box as a near separate sub system. It was a LOT of work taking many days.

Yes, within reason the regulator will handle the fuel pump pressures. I used a F-350 inline pump mounted externally under the rear seat area.

Yes, the turbo does create a fitting problem. My battery area was rusted out and I fashioned a new, larger panel to both effectively repair the area and compensate for the turbo. it is not stock in appearance.

I have a wagon too. I mounted the T/C window wash tank under the front fender. Then I used the T/C battery tray in the drive side front of the car.

I own a Sunbeam Tiger and found a quick fix for the heater motor clearance.  I replaced it with a MGB motor (as we do in the Tiger). It simply requires slotting two mounting holes and reversing the wires to the fan.  The cage is smaller the motor runs backwards (from design) but it still blows a sufficient amount of air. You will have to trust me on that.

I tried to find my relevant post, but I have too many and am short on time.  However, I have posted pictures and many methods of what I did regarding your questions and many more. So, take a few minutes to find them. Bill from Conn. also has great info posted. There are others as well.

All the best, Tom


Title: Re: 87 turbocoupe engine into 74 pinto
Post by: pintoguy76 on December 15, 2009, 03:01:57 PM
Thanks for the info. I will look for your posts.


I plan to use an 85 merkur harness that i have, not the 87-88 TC harness so that will make it much easier.

Would it be possible to modfiy the turbo outlet elbow to put the oxygen sensor in another spot to eliminate the heater problem?

Also I read somewhere that the IHI turbo itself has wastegate clearane issues? Know anything about that?
Title: Re: 87 turbocoupe engine into 74 pinto
Post by: Wittsend on December 15, 2009, 10:39:51 PM
Honestly the MGB fan swap is SO easy.  I guess you could move the O2 sensor, but it is likely a lot more work. I also had to slot the 90 degree O2 housing and rotate the bottom inward to get exhaust pipe to frame rail clearance.  The end result of that was it also rotated the O2 sensor closer to the fan!

Yes, The IHI wastegate has clearance issues even with my modified inner fender.

I found a few pictures:
Fuel pump shows mounting location.
MGB replacement heater motor (two pics).
Inner replacement panel. Everything behind the front of the motor mount has been replaced. The area where the panel is welded in just above the frame rail is significantly lower than the original. yet as low as it is, it barely clears the wastegate diaphram even though I indented the area for clearance.

Tom
Title: Re: 87 turbocoupe engine into 74 pinto
Post by: kenbaker on December 17, 2009, 12:59:33 AM
Here are a few answers to your problems.
-Hi pressure lines off of a tuarus or other ford car.
-The turbo will be where your battery is now, so remove the battery and pound out the fender wall with a hammer.  Works well trust me!
-Put the battery in a moroso box behind the drivers seat.
-you want a powerful fuel pump  I used one for a mustang SVO.
-42 pound injectors off of I think a 944 porshe turbo work on the intake.
-The hood you will need a scoop.  The five liter mustang one works well, even with the intercooler.
-check out racer walsh!!!!!!  lots of turbo stuff