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#11

Following up.

I replaced the TFI module and PIP sensor. The TFI is in a Motorcraft box but the part does not say Motorcraft on it. The PIP sensor is a Standard Motors from the local O'Reillys store.

Ignition problems are cured and the car pulls strong again even with 20 psi boost. We'll see how the parts hold up.
'85.5 SVO
'84 Turbo RS Capri
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#12

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..............[Image: thumbs-up_1f44d.png]
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#13

From your original post:
"Is it worth the expense of going in a different direction such as distributorless or coil-on-plug?"
Initially I was tempted to repeat what most of us already know:  The stock Ford ignition electronics are very good, and way strong enough to deliver a robust spark to a boosted combustion chamber.  I never saw a need to "upgrade" to MSD box or COP system.  Are the "upgrades" good?  Probably COP is better, shorter wires, etc. Some people bag on MSD.
Certainly a crank triggered ignition will deliver a more stable spark than any gear-driven distributor.  But short of a race engine it likely won't give you the $$$ worth of improvement that you will spend.
Evidently your engine is now running great at 20lb of boost, so I would say no "upgrade" is needed.
'66 Datsun roadster, 2.3T, 255 LPH Walbro, PiMP, FMIC, Bob's 3", T-5Z, Bo Stage 3 head & 2.1 cam.
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#14

One reason why a lot of guys go the COP route is for intake manifold clearance .
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#15

(12-08-2020, 09:17 PM)TurboRagtop Wrote:  From your original post:
"Is it worth the expense of going in a different direction such as distributorless or coil-on-plug?"
Initially I was tempted to repeat what most of us already know:  The stock Ford ignition electronics are very good, and way strong enough to deliver a robust spark to a boosted combustion chamber.  I never saw a need to "upgrade" to MSD box or COP system.  Are the "upgrades" good?  Probably COP is better, shorter wires, etc. Some people bag on MSD.
Certainly a crank triggered ignition will deliver a more stable spark than any gear-driven distributor.  But short of a race engine it likely won't give you the $$$ worth of improvement that you will spend.
Evidently your engine is now running great at 20lb of boost, so I would say no "upgrade" is needed.

I agree the stock Ford ignition is quite good. On 5.0 Windsors, I've run lots of nitrous oxide and boost over the years and the Ford TFI has done just fine.

If I could keep buying Motorcraft parts which would last another 30+ years, I wouldn't have asked the original question. Unfortunately, those Motorcraft parts are rare or non-existent so I figured I would ask the hive mind here in the temple of the 2.3T.   Big Grin
'85.5 SVO
'84 Turbo RS Capri
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#16

(12-09-2020, 01:48 AM)Mike Croke Wrote:  ..........the hive mind here in the temple of the 2.3T
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LMAO!   Big Grin
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#17

Best thing I did was relocate the TFI module to the fender to get rid of the heat. Mounted it with a modified TFI stock remote heat sink and built my own cable with a burned out TFI. Easy to do if you have a soldier gun. At least I will get more mileage from the good TFI's. Next, I'm relocating the unit to the grill for max cooling. I honestly think someone could build TFI modules from scratch as good as the original Ford units.
86 Ranger 2.3EFI DD got 86 xr4ti transplant, home port head, RR cam, rotated upper, flipped E6 exhaust, 040 SRP Pistons, T3, intercooler, AT
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#18

Screw the OEM Ford stuff. This product from LMR is worth every penny. If (When) that parts store unit dies, order this one. Or, do it now and save the hassle. It's on my list of first ten things to do to a 2.3L when you buy it.

https://lmr.com/item/PDI-000555/1986-93-...ion-Module
1987 TC - Goldie - Gone but not forgotten
1988 TC - Blue/Blue 5MT Check-off car, trying to save...
Sold the Coupe (hated it), Crushed the 85.5 (rust).
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#19

(11-22-2021, 03:54 PM)Jon (Mr. IHI) Wrote:  This product from LMR is worth every penny:  LINK
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I'm not convinced that that whatup gee-whiz TFI module is any different from all the others that roll off the assembly lines "over THERE", Jon! Virtually all the aftermarket replacements tout the same so-called "improved features" (increased dwell, hotter spark, yada, yada). Did you read the two negative reviews?  <shrug>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#20

The way inductive ignition works, a replacement TFI module really can't do much.  With a 4 cylinder more dwell is at least physically possible until higher rpm, but stock TFI dwell generally does a very good job of maximizing ignition energy within the limits of a single inductive coil.   

The last few years alot of people that have never had persistant TFI problems now do, and nothing they can buy seams to help.  I have had 3 people go CAS/COP (v8 customers) because suddenly they can't keep a TFI.   One of them was a front/remote mount turbo v8 setup.   Factory TFI modules had lit the thing at 15psi and e85, and worked great.

After his last horded OE TFI finally died, he tried 3 parts store ones including new "motorcraft," then went CAS/COP. That dyna mod product has at least bean around a while, and there is a small chance it is at least better made, especially if they did a giant batch of them 15 years ago.
86 Mazda RX7, 2.3 swap, t5, MS3 sequential, BW EFR 6758
"If you can't dazzle them with knowledge, baffle them with bull sh*t"
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