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Discussion Starter · #1 ·
OK,i have a 69 302 with a 351w cam(13726548 firing order)and have the EFI setup of a 86 Lincoln TC 302 NON HO(15426378 firing onder)that i want to install on the 69 engine.Do i have to change the cam back to a 302 one to match the firing order of the 86 computer
 

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There is another way. You could re-pin the harness down at the computer where it plugs in. There are wireing harness diagrams out there if you search for them. You could also plug it in and see how it runs, but I'd bet idle could be rough. Some of the cars and trucks use a bank fire method where all 4 injectors on each bank fire at the same time. cylinders 1, 2 and 8 are already pinned correctly. Just a thought.

<font size=-1>[ This Message was edited by: Ronbuell on 2/20/06 8:02am ]</font>
 

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You could also just rewire the individual injectors for the correct 351 order.
 

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Discussion Starter · #7 ·
Throttle body fuel injection first appeared for the 302 on the Lincoln Continental in 1980, and was made standard on all applications in 1983. Electronic sequential fuel injection, roller lifters, and a steel camshaft came in 1986
 

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Discussion Starter · #11 ·
tbolt,
You can use a computer from:
86-88 Mustang (speed density)
86-92 Mark VII.

Both of those vehicles had speed density H.O. motors in them which used the 13726548 firing order.

If the 351 cam you are using is aggressive, the speed density computers I mentioned will not work. You'll have to convert the car to mass-air
 

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The injector firing order on a speed density computer does not matter as they are bank fire. The 86 Lincoln came with 14lb injectors and a restrictive upper manifold. They also had a 50mm throttle body. You need to get the upper plenum ,EGR spacer and 60mm throttle body from an HO motor. You would also need the 19lb injectors. You will also need a speed denisty computer from an HO motor. If you use the set up you have the motor will be starving for fuel.
 

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Yes,an H.O. intake is better than the standard intake.They're on E-Bay ALL of the time for cheap.It's cheaper to buy the whole set-up than piece by piece.I bought an H.O. Mustang upper and lower,spacer and throttlebody,fuel rail and injectors for $50.00 last year.I've since went to an Explorer intake (which I think is actually the way to go for bang for the buck.
 

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On 2006-02-23 10:21, raheed2 wrote:
The injector firing order on a speed density computer does not matter as they are bank fire. The 86 Lincoln came with 14lb injectors and a restrictive upper manifold. They also had a 50mm throttle body. You need to get the upper plenum ,EGR spacer and 60mm throttle body from an HO motor. You would also need the 19lb injectors. You will also need a speed denisty computer from an HO motor. If you use the set up you have the motor will be starving for fuel.
Wrong answer... With the introduction of port fuel injection in '86, all systems in passenger cars(not trucks) are SEFI.

Otherwise you are right on...
 

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Discussion Starter · #16 ·
Model Year Chassis Induction

Thunderbird/Cougar/Continental 84-85 Fox CFI
Thunderbird/Cougar/Continental 86-88 Fox SEFI
Continental 86-87 Fox SEFI
LTD Midsize 84-85 Fox CFI High Output (not recommended)
Mark VII 84-95 Fox CFI
Mark VII LSC 85 Fox CFI High Output (not recommended)
Mark VII, non LSC 86-87 Fox SEFI
Mark VII LSC 86-87 Fox SEFI High Output
Mark VII, all models 88-92 Fox SEFI High Output (integrated cruise control)
Mustang/Capri 5.0 automatic 84-85 Fox CFI High Output (not recommended)
Mustang 5.0 86-05 Fox SEFI High Output
Crown Victoria/Grand Marquis 84-85 Panther CFI
Crown Victoria/Grand Marquis 86-87 Panther SEFI
Crown Victoria/Grand Marquis 88-01 Panther SEFI (integrated cruise control)
Town Car 84-85 Panther CFI
Town Car 86-87 Panther SEFI
Town Car 88-90 Panther SEFI (integrated cruise control)
 

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Forget repinning the EEC harness or rewiring the injector harness(same difference), SEFI systems will lean out half the cylinders and over richen the other four with this trickery.

First off you need a cam to match the EEC(computer)firing or vice versa.. IF you engine idles 17" or more of vaccum, a speeed densety system will be fine. Otherwise you need a mass air system or milder cam. Next is how much HP does your engine produce(approx). The 150hp (14lb inj) Lo Po system used on evey 5.0 engine other than the LSC and Mustang can support approx 170hp before leaning out. The Mustang/LSC 225hp HO system that uses 19lb inj can support approx 250hp(the '86 Mustang and '86-'87 LSC used a 200 hp system that has the more restrictive upper intake and unique 58 mm throttlebody).

Remember I'm talking SPEED DENSETY SYSTEMS HERE...

Also IF your engine uses a flat tappet cam you MUST use a distributor with a cast iron gear(5.0 EFI truck) as the steel gear for the roller cam will destroy the can gear in 8-10K miles.
 

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Discussion Starter · #18 ·
Injector HP Chart for Typical Performance Engines
The following chart indicates recommended injector size for typical naturally aspirated V8 performance applications. A BSFC of 0.45 and duty cycle of 90% is used for the following recommendations. Use the formula above to calculate your injector size if a different BSFC and duty cycle is required
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Injector Size/horsepower


14 lb./hr up to 225
19 lb./hr 225-300
24 lb./hr 300-385
30 lb./hr 385-480
36 lb./hr 480-575
42 lb./hr 575-670
50 lb./hr 670-800

The following chart provides maximum horsepower levels based on injector size and various BSFC values. Note that this is at 100% duty cycle and 43.5 psi; raising the fuel pressure will increase the maximum horsepower. See the text below for fuel pressure and injector flow calculations.




<font size=-1>[ This Message was edited by: 64TBOLT2 on 2/25/06 6:10am ]</font>
 

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What was the HP of the 69 Mustang that you are converting. I don't belive that you will be able to get more than 175 to 180 with the set up you are talking about. I have a 90 lincoln TC with the 5.0. It came stock with 150 HP and the same set up you have the only difference is the 90 computer has integrated Cruise. I converted to 19lb injectors and the upper Manifold from an HO mustang. The stock SD computer did not do well with this co I converted to a mass air. using the computer from a 91 merury marqui which has the integrated Cruise. When I go to bigger heads and cam will change to a mustang A9L computer and have to rewire the cruise. This is because the Merc computer was originaly set up with 14Lb injectors works great except has a problem at WOT. If I were you and converting to fuel injection I would definitly go with mass air set up as they are much better equipped to deal with different cams and such. There is a lot of info about this at www.fordfuelinjection.com.
 

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Another thought the lincoln TC upper intake points to the left and when upgrading as I did larger throttle body and EGR spacer there were several mods I had to make. Much easier to use the upper intake from a HO motor which were set up to the right. You still can use alot of the sensors lower intake fuel rails etc that you already have. Plus all the after market product are made for the Mustang/ Mark VII set up.
 
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