Deleting the distributor - TCCoA Forums
 
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post #1 of 15 (permalink) Old 04-01-2012, 09:41 PM Thread Starter
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Deleting the distributor

So I've got the green light on doing an SC swap on my newest project car, my new question is what do I have to change, splice, switch, etc... to convert over to EDIS, instead of distributor?

Thanks,
Chris

-1996 Pearl White Thunderbird 4.6 Sport 4v with many mods:
Current Best: 13.583 @ 103.74 10/2014.
227hp/241tq measured on calibrated mustang dyno, tested at full vehicle simulation with inertia enabled, no number skewing.
-2001 White Ford F-250 Super Duty 6.8 V10, 4-door, 4x4, Limo Tint, BFG KO2's, Bilstein 7100 Remote Reservoir Race Bypass Shocks, 6" Spring lift, Kenwood Double Din, K&N Intake, FlowMaster Exhaust
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post #2 of 15 (permalink) Old 04-03-2012, 05:16 PM
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Easiest fix would get a 94/95 SC EEC or a 96+ N/A EEC and the 94/95 engine harness. Though it might be possible with a 89-93 SC ICM and the pre 96 N/A EEC. Either way your front cover and balancer must match the DIS system (either 89-93 style or 94+)

If all else fails get a bigger hammer!

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MPII w/ Plenum,90mm MAF, 85mm TB, 40# Injectors, 255 lph FP, Double IC w/fan, SCT Chip (Tuned by Jerry),3/4" Raised Top, F52-TT TC, SilverFox AOD 550, SPT-R VB
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post #3 of 15 (permalink) Old 04-03-2012, 06:17 PM
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If you're swapping to an SC motor, won't you be getting the EDIS setup along with it, or am I not understanding what you're planning?

Josh Keady

1994 Super Coupe ('93 5.0L swap), 1990 Tbird 3.8L, 1982 Honda CB900F, 1972 F-100 SportCustom 4x4, 1970 Chevy Custom Camper / 20
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post #4 of 15 (permalink) Old 04-03-2012, 09:42 PM Thread Starter
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I believe the engine is coming with the EDIS setup such as the coil and reluctor and such however it is a simple engine harness swap or is it a complete engine bay harness swap or both. I figured I would need the 94/95 EEC, or at least a chip to control the engine. I am mostly wondering from the firewall forward what mods will have to be done. I'm just not sure where all the wiring for the EDIS comes from and where the wiring from the coil and distributor set up comes from, I haven't looked that far into it and during swaps I see no one messing with any of it or asking anything about it.

I've done the 4.6 SOHC to 4.6 DOHC swap and that was cake. This seems a bit more in depth lol. Of course all of this is assuming that everything goes smoothly with the acquisition of the motor from a member here. Hopefully everything he recalls being there is still there, obviously I figure I'll have gaskets to change, misc sensors, fluids, odds and ends as far as components go but I'm trying not to get hung up on the electrical side of this. I have an ASE in electrical however I just over analyze everything first. I suppose worst case I could search for and pick a 94/95 sc of its harnesses however I just wanted to know what needs to be swapped if anything.

-1996 Pearl White Thunderbird 4.6 Sport 4v with many mods:
Current Best: 13.583 @ 103.74 10/2014.
227hp/241tq measured on calibrated mustang dyno, tested at full vehicle simulation with inertia enabled, no number skewing.
-2001 White Ford F-250 Super Duty 6.8 V10, 4-door, 4x4, Limo Tint, BFG KO2's, Bilstein 7100 Remote Reservoir Race Bypass Shocks, 6" Spring lift, Kenwood Double Din, K&N Intake, FlowMaster Exhaust
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-2005 White GMC Sierra 3500 6.6 Duramax, Dually, 4-door, 4x4, Limo Tint, BFG Commercial T/A's, Rancho RS9000XL Shocks, Kenwood Double Din, K&N Intake, Banks Monster Exhaust
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post #5 of 15 (permalink) Old 04-03-2012, 10:07 PM
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If it's a '94/'95 motor, just find an SC of similar vintage from which to pirate complete harnesses. I don't know about the EDIS N/A 3.8, but I know the SC has sensors (e.g. crank position sensor) that the older 3.8s have no provision for. Seems to me that the SC has a knock sensor, as well. Just find an SC, get the whole left side (as you face the car) engine bay harness (that goes through the firewall to the ECM), and the engine harness, and call it a day.

Josh Keady

1994 Super Coupe ('93 5.0L swap), 1990 Tbird 3.8L, 1982 Honda CB900F, 1972 F-100 SportCustom 4x4, 1970 Chevy Custom Camper / 20
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post #6 of 15 (permalink) Old 04-04-2012, 09:19 AM
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My big questions is how do you plug the hole?

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post #7 of 15 (permalink) Old 04-04-2012, 09:25 AM
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Quote:
Originally Posted by RCReevesPhotography View Post
My big questions is how do you plug the hole?
JB Weld It's like Bondo for Engines!


I learn more about cars every day!
I do it just because I still want to know HOW and WHY!!! Quit learning=die. Be informed as to WHAT, rather than learn,=brain-dead already.
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post #8 of 15 (permalink) Old 04-04-2012, 09:32 AM
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Quote:
Originally Posted by RCReevesPhotography View Post
My big questions is how do you plug the hole?
Seems to me that you'd also have to put a stub out of a distributor in there - since the disty is what drives the oil pump in most pushrod motors!

RwP
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post #9 of 15 (permalink) Old 04-04-2012, 12:38 PM
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It does. On 3.8l with DIS, the camshaft syncronizer assembly replaces the distributor. It has the CMP sensor on top.

-Rob
RIP '94 Amber Fire Pearl Metallic Thunderbird on Bullitts [email protected]
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post #10 of 15 (permalink) Old 04-04-2012, 05:37 PM
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Considering the 94/95 SC does not have a external Ignition Module you will need a EEC that has provisions for this. If you want/need a knock sensor then SC EEC if not any 96+ 3.8 EEC should work, both most likely will need repining.

Not knowing off the top of my head if the 96 EEC has IAT sensor or uses the MAF could be an issue (while if it does I believe you could repin the MAF and pull the signal form the IAT).

If all else fails get a bigger hammer!

93 SC Tbird
MPII w/ Plenum,90mm MAF, 85mm TB, 40# Injectors, 255 lph FP, Double IC w/fan, SCT Chip (Tuned by Jerry),3/4" Raised Top, F52-TT TC, SilverFox AOD 550, SPT-R VB
96 1/2 XR7 Sold and Salvaged
93 5.0 Tbird
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post #11 of 15 (permalink) Old 04-04-2012, 05:45 PM Thread Starter
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Quote:
Originally Posted by bowez View Post
Considering the 94/95 SC does not have a external Ignition Module you will need a EEC that has provisions for this. If you want/need a knock sensor then SC EEC if not any 96+ 3.8 EEC should work, both most likely will need repining.

Not knowing off the top of my head if the 96 EEC has IAT sensor or uses the MAF could be an issue (while if it does I believe you could repin the MAF and pull the signal form the IAT).
I honestly couldn't care less about knock sensors by the time they do there job it's too late.

96 EEC does have an IAT sensor and a MAF.

-1996 Pearl White Thunderbird 4.6 Sport 4v with many mods:
Current Best: 13.583 @ 103.74 10/2014.
227hp/241tq measured on calibrated mustang dyno, tested at full vehicle simulation with inertia enabled, no number skewing.
-2001 White Ford F-250 Super Duty 6.8 V10, 4-door, 4x4, Limo Tint, BFG KO2's, Bilstein 7100 Remote Reservoir Race Bypass Shocks, 6" Spring lift, Kenwood Double Din, K&N Intake, FlowMaster Exhaust
Amber_Murder's Daily Driver.
-2005 White GMC Sierra 3500 6.6 Duramax, Dually, 4-door, 4x4, Limo Tint, BFG Commercial T/A's, Rancho RS9000XL Shocks, Kenwood Double Din, K&N Intake, Banks Monster Exhaust
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post #12 of 15 (permalink) Old 04-04-2012, 07:05 PM
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Quote:
Originally Posted by bowez View Post
Considering the 94/95 SC does not have a external Ignition Module you will need a EEC that has provisions for this.
The 89-93 have the DIS module located above the AC compressor. On the 94/95 they are on the Fender near the air filter box, like on most 94/95 4.6 vehicles. They both use an external DIS module but the late model ones are less prone to failure.
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post #13 of 15 (permalink) Old 04-04-2012, 07:14 PM
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Quote:
Originally Posted by SCTbird1994 View Post
The 89-93 have the DIS module located above the AC compressor. On the 94/95 they are on the Fender near the air filter box, like on most 94/95 4.6 vehicles. They both use an external DIS module but the late model ones are less prone to failure.
C160 & C170 in this 1995 3.8L picture (from the sticky at the top of the 3.8L thread)?

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post #14 of 15 (permalink) Old 04-04-2012, 07:21 PM
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C160 & C170 in this 1995 3.8L picture (from the sticky at the top of the 3.8L thread)?
Yes, the Ignition / Distributorless Ignition module, it says DIS right on it.
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post #15 of 15 (permalink) Old 04-05-2012, 05:07 PM
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Well I stand corrected, my bad.

With 94/95s using a ICM I'd use one of their EECs. You might be able to use any EEC but I don't know if the N/A have provisions for the BAP--or if you really need it.

If all else fails get a bigger hammer!

93 SC Tbird
MPII w/ Plenum,90mm MAF, 85mm TB, 40# Injectors, 255 lph FP, Double IC w/fan, SCT Chip (Tuned by Jerry),3/4" Raised Top, F52-TT TC, SilverFox AOD 550, SPT-R VB
96 1/2 XR7 Sold and Salvaged
93 5.0 Tbird
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