Marine definition

Anything not covered in the other forums.
rusty_lawrence
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Novi 2000 intercooled S/C

Marine definition

Unread post by rusty_lawrence »

How hard is it to develop a definition a definition for the marine eec-iv? I have a definition for mine with BE that’s locked down as a one off, but it’s not really helpful for others that want to tune these setups.

I guess if you can’t get a new quarterhorse it may not add value

No emissions, no AC, no ps, no o2s. Just a basic speed density setup with 24lb injectors. Full time open loop.
decipha
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'19 F-150 3.3L

Re: Marine definition

Unread post by decipha »

Not hard just time consuming.

Most of the speed density stuff can be tuned with a1c or c9c1 especially if its just open loop where fueling doesn't really matter.
rusty_lawrence
Posts: 86
Joined: 2021 Jun 03, 14:46
Location: New Orleans
Vehicle Information: 1994 F150 Lightning
WAY1 / SMD-221
408w / AFR heads / Ported GT40
Novi 2000 intercooled S/C

Re: Marine definition

Unread post by rusty_lawrence »

These EEC use EFI-MA39C. Would A1C or C9C1 work with that hardware code?
decipha
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'19 F-150 3.3L

Re: Marine definition

Unread post by decipha »

No idea only way to know is to test it
rusty_lawrence
Posts: 86
Joined: 2021 Jun 03, 14:46
Location: New Orleans
Vehicle Information: 1994 F150 Lightning
WAY1 / SMD-221
408w / AFR heads / Ported GT40
Novi 2000 intercooled S/C

Re: Marine definition

Unread post by rusty_lawrence »

I’ll see how the bin opens on that def.

One more question on these. For guys just needing stock replacements, You can’t get a reman ecu anymore. Guys are chipping mustang ECUs with the same hardware code and the oem tune to get a working replacement. With Moates going under I guess SCT chips are the only way to keep this up. But is there a way to program the eprom?
rusty_lawrence
Posts: 86
Joined: 2021 Jun 03, 14:46
Location: New Orleans
Vehicle Information: 1994 F150 Lightning
WAY1 / SMD-221
408w / AFR heads / Ported GT40
Novi 2000 intercooled S/C

Re: Marine definition

Unread post by rusty_lawrence »

Or a place that I can send a few off and have it done?
decipha
Posts: 4950
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
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'19 F-150 3.3L

Re: Marine definition

Unread post by decipha »

its not going to open in that def with anything usable as its a different strategy

moates was the only eprom programmer that I knew of although that was a hush hush operation not publicly known
rusty_lawrence
Posts: 86
Joined: 2021 Jun 03, 14:46
Location: New Orleans
Vehicle Information: 1994 F150 Lightning
WAY1 / SMD-221
408w / AFR heads / Ported GT40
Novi 2000 intercooled S/C

Re: Marine definition

Unread post by rusty_lawrence »

ty. so just start with a fresh base tune on either the A1C or C9C1, through it on a chip and plug it into the oem ecu and see what it does? nothing else i can check before? wiring diagrams?
red5.0fogger
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Vehicle Information: 1986 Mustang GT, Stock block, TFS 170 Heads , N41 cam, ported cobra intake, nitrous, T5 , 3.73s

Re: Marine definition

Unread post by red5.0fogger »

What if you use an 86-88 ecm from a speed density mustang and just crank up the fuel pressure to simulate the 24 pounders.
decipha
Posts: 4950
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'19 F-150 3.3L

Re: Marine definition

Unread post by decipha »

wiring on all eec-iv speed density of that era should all be the same but yeah wouldn't hurt to check

load the file on there and log with it and see if it polls usable data and doesn't freak out then you can see if the inputs and outputs are functioning correctly
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