i need to get a tune badly

[svt94cobra]

im thinkin i might go with a reputable mail order chip if i can get any good recomendations...anyone have any ideas?

[LilRedLX]

not sure I like the "off the shelf" stuff......another thing, is this the combo your gunna keep?

I knew a dude a long time ago that changed his computer to an early EECIV versus the one that came in the 94 - 95 Cobras. He picked up mega power. My dad had a 95 CObra and that thing could not get out of its own way.

Another guy I knew changed his 93 Cobra computer to a non-Cobra and picked up 30hp (dyno proven). Some guys knew him......Gene Deputy's wifes car.

You ought to think about these things and maybe not do ANYTHING if your gunna spray it or force feed it, I wouldn't do anything till you figured it all out.

Good luck!

[svt94cobra]

not sure I like the "off the shelf" stuff......another thing, is this the combo your gunna keep?

I knew a dude a long time ago that changed his computer to an early EECIV versus the one that came in the 94 - 95 Cobras. He picked up mega power. My dad had a 95 CObra and that thing could not get out of its own way.

Another guy I knew changed his 93 Cobra computer to a non-Cobra and picked up 30hp (dyno proven). Some guys knew him......Gene Deputy's wifes car.

You ought to think about these things and maybe not do ANYTHING if your gunna spray it or force feed it, I wouldn't do anything till you figured it all out.

Good luck!
i have actually heard that the cobra computer is a pos before but it was always hear say...since you say you know people who have done so i may have to try it out...i work at a shop so it shouldnt be a problem finding the parts and riggin em up :thumbsup: thanks

[LilRedLX]

Dude....its no rigging job. They sell a conv. kit that allow that to take place. Its kind of a hassel I was told. Its no here-say....its the real deal. Not sure where to look for that kit or even what its called.....but its out there and it DOES work. After you goto that kit, chip become easier to come by and cheaper to do.

Don't quote me on this but I believe the 94-95 have EECV and not EECIV. In 96 they went to ODBII-EECV. The 94-95 both have the OBDII connection but does not work with Insp spftware.....something about the drive cycle.

A serious tuner like at Anderson Motorsports or Mike Merillo (sp) can tell you more.

Good luck!

[Blue91]

94-95 are EEC-IV, and Pro M made some sort of conversion harness to put an A9L style eec in to replace the sn95 eec's. I'm not sure if they still offer it or how much it costs. I think it's kind of expensive though. These days, not sure if any other company makes anything that's plug n play.

The 93 cobra eec (x3z) is a very toned down eec, and is easily replaced by just putting an A9L or A9P in and putting a MAF on the car to match the factory 24lb injectors.

[svt94cobra]

sweet...this has to be one of the most helpful tech forums ive been on yet, most of the other sites the tech forums usually struggle and it takes forever to get a reply...thanks again guys

[LilRedLX]

yeah.......a looooong time ago I was talking to Gene Deputy (nice guy) and we were talking about his wifes car. Her's was just like mine......he was telling me about the dyno time they got on the car. This car was rated at 235hp. Thats a friggen joke. Mine was bought at Jack Roach Ford when I was a private in the Army back in 93. BONE stk it ran a 13.9 @ 99mph at HRP. The 93 Z28 had just come out and it was rated at 275hp and yet NO ONE could get a 13-anything.

Gene was telling me the car was WAY under rated and that his ol' ladies car ran a bullet 75mm MAF (24lb rated) with an earlier yr computer. He found that the stk computer was taking out all the timing at certain rpm levels. WTF!

Back when Nick Fields owned Street Performance (off of Hempstead) there was a guy there that owned a 95GT.........he had done alot of work to the car (heads, cam, intake, TB, MAF, exhaust and so on) and the car was sloooooow! They did some testing with the SNAP ON Motis and saw the same thing that Gene was telling me about. They took that next step and went to an earlier yr computer.........then BAM! The car felt like you were spraying it all the time. What a friggen difference.

This computer thing is no myth.......its proven science and I've seen it FIRST HAND. I have no idea what Ford was thinking.

[63T-Bolt]

You would be supirsed to learn the 94-95 J4J1 (cobra only) computer is a very good starting point for the Sn95 cars. Alot of your tuners use its base program and do their work off it since it adapts very well. With my tweecer and a fairly healthy engine (185's, 230+@.050 cam, system max intake) I have been able to get my 94 cobra to idle rock solid and hopefully gain some power at the rear wheels, track times will tell. As far as the pro-m kit, it was called a PIH standing for Plug In Harness i believe. They have 2 versions of this kit and for 300+ dollars IMO you are better off going with a custom tune over it. The 1st generation was a true plug and play ordeal, while the later one you have to remove pins from the eec harness and so forth making it a real mess and leaving alot of room for mistakes. Hope this helps some.

[LilRedLX]

63T.....you sound very sure of what you say. While I disagree, I suppose thats how it goes. I would be interested in hearing more about this from others and see what the "experts" say. I have NEVER heard that the computer of a 94-95 Cobra to be a good program. I have NEVER ridden in either yr. that ran like ANY thing like the 93 Cobra. In fact, I have never ridden in a 94-95 that had several mods that ran as good as a 93 stock. After seeing what I've seen I would have to argue this one till being explained why I've seen these things.

[Blue91]

Pat... the BASE of the tune is fine, but like you said, they then make changes. The STOCK tune in the eec is CRAPPY and pulls timing and does other crappy stuff. No one said you can't use the eec and then put a totally custom tune in (based on the original eec parameters). Afterall, that's what a chip/tune does right? Take a base tune and expand on it to meet the needs of the car.

I could find you a ton of 94-95 cobra's that have outran stock 93 cobras, lx's, etc. It's not impossible to do with a 94-95, even if ya haven't seen it yourself. It's probably fairly common.

[63T-Bolt]

63T.....you sound very sure of what you say. While I disagree, I suppose thats how it goes. I would be interested in hearing more about this from others and see what the "experts" say. I have NEVER heard that the computer of a 94-95 Cobra to be a good program. I have NEVER ridden in either yr. that ran like ANY thing like the 93 Cobra. In fact, I have never ridden in a 94-95 that had several mods that ran as good as a 93 stock. After seeing what I've seen I would have to argue this one till being explained why I've seen these things.

The #1 reason for this is due to Vehicle Weight. My 94 was 3,500lbs with me in it, 3/4 tank of gas, and already has aluminum heads and such to lighten the car from what it was in stock trim. A 93 is more around 3,300 with the stock cast iron heads. Other than the weight issue they 94-95 cobras respond just as well to any simple mods like the 93 does.

[svt94cobra]

The #1 reason for this is due to Vehicle Weight. My 94 was 3,500lbs with me in it, 3/4 tank of gas, and already has aluminum heads and such to lighten the car from what it was in stock trim. A 93 is more around 3,300 with the stock cast iron heads. Other than the weight issue they 94-95 cobras respond just as well to any simple mods like the 93 does.
so i will be alright if i go get a good tune with my stock computer??

[Saleen91]

One of the biggest factors, IMO, for making the 94-95 EEC's such slugs is that Ford enable a tip-in retard. On the T4M0 (94-95 5 speed GT) the timing goes down to a whopping 5^ of timing on tip-in!!! I've been told it was implemented to help lengthen the life span of the already weak T-5.

Add to that 1^ less timing at WOT than the 87-93 EEC's have along with a heavier car and you start to see why they were slower cars from the factory. The J4J1 (Cobra EEC) has more timing across the board. Not a lot, usually 1-2^ in most spots, but it's enough to help out. However, it still has the weak 5^ tip-in.

All of those things can be changed with a custom chip/TwEECer/etc.

[LilRedLX]

I didn't know the perameters as Saleen put it.......but the timing thing is what I've been told and seen. This is exactly what I was discribing. As far as seening ALOT of 94-95 Cobras outrun the stk 93 Cobra.....I have yet to see that. In some cases (back in the day) the stk 94-95 CObras were running what lightly modded 88-93 LX and GT's were running (maybe 14.4 - 14.6 at 99-97 mph). Gene's wife's car with only the computer change, the matching MAF, and a cat back run 13.3's with stk tire. THATs A HUGE DIFFERENCE IN COMPUTER!

Its an interesting topic.......I am only speaking of what I've seen and heard......I could be completely wrong but I don't think so. If I am wrong why did ANYONE make the conversion kit? Alot of work for nothing?

[Blue91]

B/c a lot of people back then didn't have access to chip tunes / custom tuners. It was easier to just swap to the diff eec.

As far as time differences... again, the 94-95 cobra's had the same motor, less total timing, tip in retard, heavier weight, compared to the STOCK 93 Cobra. Of course it'd be slower, side by side. Throw in a better eec for the 93, driver differences, different weather, etc, and it's comparing apples to oranges.

Bottom line, there's no need nowdays to swap to a completely different eec. There are products out there that allow you to put pretty much any program you can imagine on the eec and alter a ton of parameters to make it what you want.

[svt94cobra]

sweet...thanks alot guys, ill stick with my stock eec and just tune it up right ;)

[LilRedLX]

Back to the origianl question.........should he buy off the shelf or custom? Based on this long conversation..............I think the unanimous vote is for the custom!

[Blue91]

Based on this long conversation..............I think the unanimous vote is for the custom!

Aye from me.

[bluethunder]

94-95 are EEC-IV, and Pro M made some sort of conversion harness to put an A9L style eec in to replace the sn95 eec's. I'm not sure if they still offer it or how much it costs. I think it's kind of expensive though. These days, not sure if any other company makes anything that's plug n play.

The 93 cobra eec (x3z) is a very toned down eec, and is easily replaced by just putting an A9L or A9P in and putting a MAF on the car to match the factory 24lb injectors.



Fred, They still offer that Pro-M conversion through Tommie Vaughn. ordered one last week for a friend that did heads and cam and it wqorked great!

[Redsnk95]

I am in favor of a custom tune or using a tuner like the TwEECer or PMS. IHMO, why take a stock processor out to replace it with another stock processor? Why not take that money and put it towards the custom tune? I have a J4J1 in my car, and never had any problems with it. With h/c/i/s-trim I was able to get the car to idle on its own just fine, and ran some 11.50s on 17in radials with the stock EEC. The Tip-In does suck, when I had a TwEECer I could feel an immediate difference when I changed that Tip-In with the 5spd. JMS or Ben both can do good mail order chips and get pretty close. Personally, if you can find a local chip burner and get on the dyno that is the best way.

Troy