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Topic: 83 5.0 CFI.. EEC-III or EEC-IV? (Read 5233 times) previous topic - next topic

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #15 –
Quote from: Shadow;368222
no wonder these cars old had 140hp.. they were set up so retarded.. playing with this thing is NOT going to be fun.. lol

No they had no power because the auto makers were scrambling to to meet safety, emissions & MPG requirements mandated by the Fed, performance took a backseat... The thought in in the late 70/early '80s was V8s were good as dead so performance research went into the 2.3 OHC, those had been turbocharged using a carb as early as '79... By '83 V8 performance was making a strong come back via carbed Mustangs... As far as performance, the EEC-III system was already obsolete by the time it was introduced... 

Swapping to EEC-IV is no doubt the way to go, one of these days parts for the III system will be impossible to find...

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #16 –
Quote from: TurboCoupe50;368374
Swapping to EEC-IV is no doubt the way to go, one of these days parts for the III system will be impossible to find...


that's just another plus on top of the other benefits, like diagnostics, tuneability, instant power gain by using an LTD LX setup (HO firing order) and the likelihood of someone being able to chip/tune or at least tinker with the ecu
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver
 

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #17 –
alright, some updates based on the info me and the owner of the car have tracked down through the wonderful world of internet searching ;)

the LTD LX harness and EEC are out the window, 1 of the tech pages suggests not using a factory HO setup in a non-HO factory car, i assume the harness is different.

so these are the specs of the direction it's going (as of now, unless i find someone to tune the EEC-IV)
- 84-85 harness out of a non-HO fox body car (LTD, mustang base or bird)
- non-HO EEC-IV out of the same car
- upgrade to mildly ported E7's (basically just some casting cleanup and polishing)
- same treatment for the intake and manifolds
- HO cam, non-roller (unless for some reason it turns out to be a roller block, which i highly doubt
- true duals with custom xpipe, both running down the passenger side and into a dual in/out flowmaster and exiting in the stock location
- injector upgrade to the 52# LTD LX HO injectors
- POSSIBLY underdrive pulleys, IF i can find a setup that'll keep the 3 belt setup
- a small compression bump (from 8.4:1 to 8.6-8.8:1)
- and a little bottom end balancing
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #18 –
Unless you get a tune you'll need the larger throttlebody and matching EEC for those 52Lb injectors...

The automatic '84-'85 Mustangs had the same(similar?) HO CFI setup to the LSC and the LTD LX... No std CFI Stangs, period...

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #19 –
i found a lot of factory specs on base stangs, saying the base cfi cars were non-ho.. no matter, it'll be a crown vic i rob the harness and EEC from, since there are about 15 of them in my local junkyard. (they're just junk beater cars in this area, there's no fanbase what-so-ever for these cars.. i'm not a fan of them either).. but with the 52# injectors, will be the throttle body they belong in.. i can't find specs on this throttle body anywhere, so i poked around on advance auto's site (or autozone, whichever) and it was the same part number for all cfi cars.. but all LTD's had the 52# injector part numbers.. i'm wondering if the advance or autozone part numbers are incorrect for the LTD or bird and the LTD tb is bigger.. either way, the LTD throttle body is going to be part of the swap, to avoid any complications with any sensors.. the throttle bodies show no obvious difference in barrel size, but it may only be a mm or 2 and basically unseen by the naked eye.. we shall see when i have them side by side and break out my digital caliper ;)
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #20 –
Well I've never seen a '84-'85 CFI 5.0 Stang that wasn't HO, includes a base notch, can't believe everything in the books...

Also I can't believe they didn't use a larger throttlebody with the 52Lb inj... Search around here(if you can get it to work), seems I remember someone playing around with the CFI HO pieces, may have been jcassety...

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #21 –
i'm not saying they are the same TB, i agree that they should be bigger.. but advance or autozone lists the same part number for the bird and LTD.. we'll just have to see once i have the 2 side by side and check them with my caliper. and if all 84-85 stangs were indeed all HO, it means finding a non-roller HO cam will be a breeze. at this point, it's just going with a stock HO cam to keep things from getting too complicated, because i highly doubt my luck is going to turn for the better in finding someone who is able to tune these things, which is a bit of a downer
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #22 –
A page from the 84 Shop Manual. For what it's worth.

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #23 –
see! some guy on 4ep told me all stangs were HO.. this chart shows standard 5.0's in the stang.. i'm stealing this, thanks lol
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #24 –
That chart is BS!  Can someone please explain to me how in hell a 84 Cougar 5.0 CFI can have a 2150 2BL as well as electronic fuel injection.
84 COUGAR/90 HO, 1.7RRs, performer RPM,700DP, equal length shorties, stainless EXH ,T-5,Hurst pro-billet, KC clutch, 8.8/ 4.10s, line-lok, bla ,bla, bla.
71 COMET/289,351w heads, 12.5 TRWs, 750DP, Liberty TL, 9"/6.00s, 11.9x @112 , bla,bla,bla.

Never shoot your mouth off, unless your brain is loaded! ....I may get older, but I'll never grow up!....If you're not laughing, you're not living!  :laughing:

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #25 –
it means either, not both lol
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #26 –
Quote from: Shadow;368292
so far, from the info i've gotten from sbf tech and some googling (and the tidbit of info here), it looks like the best bet is to upgrade to EEC-IV and disguise the harness as the EEC-III setup.. the AC bracket and compressor will hide the distributor module. the rest i can run under the hood to look exactly like the stock EEC-III harness and leave the duraspark III ICM in it's place, with a dumby harness

 
If you're concerned how a TFI distributor will look, you can use a setup from a 94-95 Mustang GT or 91-93 Thunderbird 5.0 with the remote mount ignition module.
Matt
1984 Thunderbird - 89 302 HO, GT40 heads w/ Trick Flow springs, E303 cam, Edelbrock Performer 289 intake and 600 cfm 4bbl, Mustang headers, Jegs o/r H pipe, Dynomax lers, Mustang AOD and shifter, Mustang 8.8 w/ 3.73s, 3G alternator, Mustang front and rear sway bars, KYB SN-95 front struts and shocks, and 11" front brakes.

1988 Mustang GT - GT40 heads, Explorer intake, 70mm throttle body, 70mm MAF, Crane 1.7 rrs, E303 cam, Kirban Kwik shifter w/ Pro 5.0 deluxe handle, aluminum clutch quadrant and firewall adjuster, o/r h pipe, Dynomax lers, 3G alternator, aluminum radiator, and 3.27 gears.
 
1986 Cougar 5.0, 1989 Mark VII LSC 5 speed, 1980 Mercury Zephyr 4 door (sold)

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #27 –
indeeeeeeeed.. i could hollow out the duraspark III and hide the module in it.. interesting.. may just have to do that
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #28 –
Quote from: QUICKSHIFT;368808
That chart is BS!  Can someone please explain to me how in hell a 84 Cougar 5.0 CFI can have a 2150 2BL as well as electronic fuel injection.

Notice the footnote that indicates that the carb is for Canada.

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #29 –
Quote from: softtouch;368827
Notice the footnote that indicates that the carb is for Canada.
....again misinformation....mine is Canadian and came with CFI!  The exception may be for a Thunderbird...who knows?
84 COUGAR/90 HO, 1.7RRs, performer RPM,700DP, equal length shorties, stainless EXH ,T-5,Hurst pro-billet, KC clutch, 8.8/ 4.10s, line-lok, bla ,bla, bla.
71 COMET/289,351w heads, 12.5 TRWs, 750DP, Liberty TL, 9"/6.00s, 11.9x @112 , bla,bla,bla.

Never shoot your mouth off, unless your brain is loaded! ....I may get older, but I'll never grow up!....If you're not laughing, you're not living!  :laughing: