Help me pick an ECU (speed density)

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Help me pick an ECU (speed density)

Unread postby Lazymod » Tue Oct 09, 2018 10:05 pm

Hey gang, I’m new here and am having a little trouble finding a good starting point for my setup. I’m rebuilding my 1969 351w with a stack injection intake from Procomp. This makes it necessary to use a map sensor, so I’ve been looking to find a suitable speed density pcm that can be tuned for ~500hp and run a 4r70w.

What I’ve found is that 95 bronco/f150/lightning would probably be the latest models that have something that may work, is there a better solution? I would love to have edis8 running, but not a necessity. Is there a eec-v option for speed density? Or can a eec-v put maf into limp mode and run a map sensor?

Sorry for the noob ?s
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Re: Help me pick an ECU (speed density)

Unread postby decipha » Tue Oct 09, 2018 10:29 pm

I do not know of any speed density ecu strat's that control a 4r70w, all the bigger truck stuff is going to be an e4od which is completely different

no, any maf ecu isn't going to support map. Someone could very easily rewrite the maf code and create a map transfer function along with a VE lookup table to compute an air charge but it would be quite a bit of work and would take a significant amount of time to get the code side repeatable.

your best option would be to get an 03/04 luxury sedan ecu and just run it in fail-safe with no maf nor map. Can control a 4r70w and you'd run your edis - coil on plug.
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decipha
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Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
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98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce

Re: Help me pick an ECU (speed density)

Unread postby Lazymod » Tue Oct 09, 2018 11:01 pm

Darn, I was hoping there was a pcm I missed somewhere.

If I skip edis Can I use a pcm made for a 5.8/e4od and change the settings to allow use of a 4r70? I’d like to just run with one system if possible

Thank you for you help
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Re: Help me pick an ECU (speed density)

Unread postby decipha » Tue Oct 09, 2018 11:20 pm

no

what i mentioned above is "one system" ?
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decipha
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Posts: 15501
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Ponthieux
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce

Re: Help me pick an ECU (speed density)

Unread postby Lazymod » Wed Oct 10, 2018 7:55 am

Oh my bad, I assumed you were talking about running some sort of piggyback setup when you mentioned “fail safe no maf nor map”. I guess I have some more reading to do, I can’t understand how it would run without knowing how much air is flowing.

I’m looking into COP retrofit Windsor’s now, and that looks better than edis8 honestly. Plus obd2, which may be easier to program. Thanks for that tip.
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Re: Help me pick an ECU (speed density)

Unread postby Lazymod » Wed Oct 10, 2018 10:32 pm

Okay I can’t find anything on running fail safe, I guess that’s best left for the tuners. Can you verify that you could write a tune that would run the efi/edis/4r70 on an ecu like the FIT0? With no map sensor? Thanks again
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Re: Help me pick an ECU (speed density)

Unread postby decipha » Thu Oct 11, 2018 1:46 am

all ecu's have a fail safe when the maf or the map fails so your not stranded on the side of the road. You can dial it in to make it run acceptably if need be. I've done before in a bind and it works well. Not perfect but better than a carb lol
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decipha
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Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Ponthieux
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce

Re: Help me pick an ECU (speed density)

Unread postby Lazymod » Fri Oct 12, 2018 12:09 am

Okay, apparently these individual throttle bodies prefer an alpha-n setup anyways.

What actually happens in a fail safe operation? Can we run IAT and ECT still? Is there a simple way to disengage sensors I don't need? Also I'm wondering if you ever use hptuners on these eecv cars, and if it's worth a shit. I want to be able to use the same tuning rig on my 03 gmc if possible
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Re: Help me pick an ECU (speed density)

Unread postby decipha » Fri Oct 12, 2018 5:37 am

yea alpha n is what youll have

yes iat and ect are critical inputs and required

yes simply disable them

no hptuners only supports the 03 cobra afaik (and possibly lightnings, with other mustangs in beta last i heard) with very minimal support at that and its extremely slow, you also cannot do realtime tuning with it either nor would you have the support to do what you need for your application

I understand the convenience of using one device but there isn't any that fits both bills. That would be akin to using a hammer on a nail and a screw. Yeah you could maybe make it work but its much more logical to use the better designed tool for the specific job. Tunerpro with my RZASA strat is the most supported ford strategy ever created. You simply cannot possibly get anything that's even remotely close to that level of control.
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decipha
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Posts: 15501
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Ponthieux
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce


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