Tuning Limits of the EEC-IV for Foxbody Mustangs with Moates QuarterHorse

[@marklowe7431]

Quarterhorse is an awesome product. Used one for a while now. Inexpensive and very good.

[@BigPermGarage]

Thank you for sharing some knowledge

[@Go4BrokeOffroad]

I've had a tweecer for 6 years and have never used it. Im glad someone is finally helping some of us out. Owned a ms3 pro and had it up and functioning in a couple hours.

[@hotrodray6802]

Still valid and interesting 👍👍👍😎

[@wkornf]

damn dude your videos are incredible. been looking for this information for years. I'm planning on doing a 99 with SCT. does most of this apply on the newer model? Thanks! planning on watching rest of your stuff

[@LeechMotorsports]

Thanks man. A lot of the concepts and theory are somewhat applicable, but the mod motor strategies are very, very different than the fox stuff. Definitely more complicated, but you just have to take your time going through everything in the strategy. Start by looking at a stock tune, and work your way logically through changes one at a time.

[@deezypnw9284]

me too bro ! haha

[@ryanjamieson8779]

Dude, huge! purist, and I had my cobra s-trim tuned on the eec-iv, i've learned a TON about the eec system, it's interesting!

[@LeechMotorsports]

Awesome man. Yeah these computers can go pretty far if you’re patient. A fox with a blower is always a good time.

[@ryanjamieson8779]

@@LeechMotorsports Here's one for you, quick question? stock 93' cobra motor, V3 @ 11.5psi, LMAF, 42's, 340lph, and afpr.. the car is sitting at 11.6 a/f on the tune. I added a powerpipe, so just as a hypothetical, if the powerpipe was in fact, to increase boost pressure, will the computer know to add more fuel, if the MAF reads more air, but isn't in a pegging situation and given the injectors can actually send more fuel?

[@LeechMotorsports]

Ryan Jamieson yes. As long as you haven’t pegged the MAF and don’t run out of fuel pump or injector, it will continue to add fuel based on the higher area of the MAF transfer curve. However, it is possible your tune before could be super dialed in, but with more airflow, you’re now in an untuned area of the MAF transfer. So you may experience a slight lean or rich condition at the top end. But a simple adjustment to the corresponding MAF cells will get you fixed up.

[@jimbo987]

i could of used you a year ago 8 foxbody builds, this last was nothing but headaches, im at the stage where chain is wrapped around the harness hooked to a tractor... this will be the first ever opposite of what i usually do, im going old school with controlled leak box

[@johnhargreaves5272]

Another great video! On the fan control I personally have done several. from factory they only have the hardware to have high speed fan control. high speed only works off of speed and ECT. Which is a great easy cheap mod for majority of the cars. for low speed you need to add an IC and then you will control of low and high speed. low speed Is based off of speed, ect, and ac parameters. I have sourced some IC from other ECM to try low speed but just haven't done it yet. What I will get people to do is add a trinary switch for AC or other ECT switches if low/high speed control is desired.

[@LeechMotorsports]

Right on. That’s seems like a good strategy. Would you by any chance know where to get a pile of unused ford style terminals? I’ve not been able to find them, but they must still be available since pro-m sells stuff like the MAF conversion harness that’s already pinned.

[@johnhargreaves5272]

@@LeechMotorsports I dont have a new source. I just have been cutting up old harnesses (trucks, town cars, explorers, etc) Also you can move some pins around on the existing car. Been awhile since I done one but i believe i have taken the pin from the air pump system and moved it over for fan control before. Also most of the EECIV ECUs have the IC chip needed for low speed fan control. I have a lincoln ECU with two chips. Just need to find a good way to remove them from the board. Has not been high on the list of things. Once I can remove the chips then I can install in a foxbody ECU and have full low/high speed fan control based on speed, ECT, and AC.

[@LeechMotorsports]

john hargreaves some how I knew that would be your answer. Lol. But nothing wrong with it. If it works it works.

[@johnhargreaves5272]

Haha I dont run a shop so running across some old junk harnesses works for me for awhile. With moving pins and scavenging from one old harness can last me a long time for the small demand of tuning old foxes. Haha I will look around though for sure. My first place would be to just ask the guys at moates. Being you work in a shop having a supply of new pins to add in would be beneficial and time saving I am sure.

[@LeechMotorsports]

john hargreaves no shop here man. That’s the stuff dreams are made of. I got a 2 car garage, a couple toolboxes with basic hand tools, a laptop, and a six pack. I don’t even use impacts unless it is the only way to break something loose. This is purely a hobby for me.

[@last302]

Just watched video one and im hooked. Any sn95 cbaza stuff in the future?

[@LeechMotorsports]

Yeah I’m planning to do some cbaza specific videos soon. Anything in particular you’d like to see a video about?

[@last302]

@@LeechMotorsports tuning is still new to me. Im using a tweecer r/t that ive had for years and wanting to use the T4M2/U4P2 base tune from Decipher. Im watching your other videos to help me learn. Probably the biggest people want to see is how to dumb down cbaza and the differences between cbaza and Gufx?

[@LeechMotorsports]

Yeah the T4M2 is not a bad starting point, but like everything else, will still need some work based on the specifics of your combo. But I like those two topics... Gufb vs cbaza and simplifying various aspects of cbaza. I also would like to highlight some parameters many don’t know exist in CBAZA due to the differences between the Core Tuning, Sailorbob, and free CBAZA strategies. All 3 are very different.

[@kevin_nagle]

Matt, what about the Anderson PMS? That has the sequential fuel & timing capabilities.

[@LeechMotorsports]

The Anderson pms is something I generally steer people away from, primarily because they no longer support it. And frankly, for a street car, the factory computer with tuning is going to yield better results.

[@chrissanders2562]

Its also cfi with the 2 injectors.

[@collinaustin4164]

Thank you for this video! I bought a QuarterHorse from Moates a couple years ago but I have not yet installed it. One thing I am curious about, I have the A9P Computer still in my 1990 fox which has been converted to a T5 manual. Using the Quarterhorse and binary editor, am I able to change the parameters in the A9P computer to make it operate identical to the A9L computer? Or would it be better to find an A9L and go from there instead?

[@LeechMotorsports]

You can make the A9P computer run the GUFB/A9L strategy. It’s what I’ve been doing on my turbo car for several years now.

[@LeechMotorsports]

Let me know if you’d like some help putting together a base tune for it.

[@collinaustin4164]

@@LeechMotorsports just installed the quarterhorse chip, now I'm just waiting on the registration file for my binary editor license. I'll be getting in contact with you

[@pcwizzy460]

Most 80s EEC-IVs are 12MHz, about 1990 or so they went to 15MHz.

[@Texasknowhow]

Great video. The pace is just right, you are covering what we all want to know. Good stuff. I am just getting into the tuning of my various vehicles and so I started googling just about anything about the EEC-IV ECM. Stumbled on your video here, really glad I did. Sub'd and gave it a thumbs up man! QUESTION - I've done the EGR delete and I'm keeping the ECM happy with a voltage divider plug I've made at the EGR position sensor harness end. But my understanding is the stock map will be pulling some timing during the cruise areas of RPM range when it thinks the EGR valve is open - where in the system (using BE or TunerPro RT) do you disable the EGR turn on function; or do you???? TIA, Clay

[@LeechMotorsports]

There is a setting in the tune where you specify EGR type. There is a dropdown to choose from and there is an option that just sets it to none or disabled. By doing that, it will get rid of all the egr logic in the tune. Then you can remove the egr delete plug.

[@Texasknowhow]

@@LeechMotorsports - Great, I knew there had to be something like that. So if I now use the analog input for a wideband O2 sensor, will it still be available to monitor? Thanks again!

[@LeechMotorsports]

Yes. It can still be logged. You just have to go to user preferences and setup the transfer function for your wideband and map it to the EVP.

[@Texasknowhow]

@@LeechMotorsports Perfect! Thanks for the replies and keep it up man, love the channel and content. Clay

[@chrissanders2562]

Is there a way to look at the numbers on the case of the computer and tell what its from? My 84 Lincoln has remanufactured one out the 80s and i feel like its not the right one.

[@deezypnw9284]

Any recommendations for what i should use for tuning a 2.5 twin spark 4cyl with 2.3 turbo components on a 1998 Ranger ?

[@LeechMotorsports]

I would definitely recommend going out to the Core Tuning website and looking at the list of strategies in their database. If they have support for your strategy (I can almost guarantee they do), that’s probably going to be your best option. They have complete packages that include hardware, binary editor software, and access to the strategies in their database. These strategies are very complete. Ben Head at Core Tuning is the guy you should contact.

[@deezypnw9284]

@@LeechMotorsports I appreciate you taking time to respond and help out . I also found an old thread a guy had the same set up on a SCTx4. I didnt think that unit alone could handle it being the the software is an extra $350.. I am new to MAF and VAM tuning. I only have Hondata Kpro experience on my Honda. Truck needs some power for some sand fun..

[@deezypnw9284]

Map pressure tuning and fuel units not VME

[@tylerhouk4685]

been considering a moates quarter horse for my 95 mustang for tuning untill I save up for a Holley system. would moates work good for stock bottom end 302 with trick flow 170 heads. 36 pound injectors. 510 lift cam track heat intake 70 mm throttle body and aftermarker fuel regulator just trying to make it street drivable till i get full computer

[@LeechMotorsports]

We can have you remote tuned on that setup with everything you need for considerably less than the Holley. It will drive better with stock computer than a Holley. I as long as all your stock efi stuff is in good shape I’d strongly encourage you not to invest the cash and energy in Holley efi unless it’s just really something you want to tinker with.

[@tylerhouk4685]

@@LeechMotorsports well if you can do remote tuning to get me up and going so the car isnt just sitting in the garage id go that route. my stock computer and everything is in good shape

[@dennisparker7541]

89 ford bronco 5.0 HO. 325 stroker kit gt40p heads. Zf5 manual transmission. Question: is there a way with quarterhorse/ binary editor/ eec-analyzer to disable the auto transmission in the hog0 computer?

[@LeechMotorsports]

Not sure. Never tuned that strategy. What all was the hog0 used in from the factory?

[@dennisparker7541]

@@LeechMotorsports it was in a 94 F150 not sure but supposedly similar to the vex1

[@zd302gt]

On the X3Z bin file im using in Binary Editor the Mass Air Transfer units it is using is lb/min. Since the computer limit is 2,350 kg/hr would it be safe to say that I can just convert that to lb/min and that would be my limit? Im coming up with 86 lb/min.

[@LeechMotorsports]

Yep. Your thinking is sound on this one. You got this.

[@zd302gt]

Awesome! Thanks for the killer educational videos!

[@davesperformance88]

Is this tunerpro rt software your using?

[@LeechMotorsports]

No, this is Binary Editor from Core Tuning, without question the best software for tuning eec-IV setups.

[@chasecary92]

Hey Matt would you happen to have a link for everything I will need for the quarter horse kit? I see all different sites with all different prices. I just want to buy everything all at once

[@LeechMotorsports]

Contact Ben Head at coretuning.net. He has everything you need there from software, to chips, to widebands. And their team provides great support in the event you have any issues with getting things installed and to the point where you can begin tuning and logging.

[@LeechMotorsports]

And tell that cranky old bastard Matt Harrison says hello!

[@chasecary92]

@@LeechMotorsports thanks man, I greatly appreciate you!

[@jrhageman1]

can anything be done with an 89 F250 w/ 5.8l , Trying to figure out how you can get the BLM info from a OBD1 ?

[@LeechMotorsports]

What computer is in the vehicle?

[@rpalaniz]

Do you Sell Custom Tunes for the A9L with a Moates Quarterhorse?

[@LeechMotorsports]

Yes I do. Please email me at [e-mail] with information about your combination and your tuning goals. We will recommend a solution that makes the most sense for your budget and desired level of participation. Often, our customers want to learn as we go through the tune process. That’s what really sets us apart. We love to teach how this stuff works. No secrets or “locked” tunes here.

[@johndoe-zb8bm]

@@LeechMotorsports Is the moates quarter horse a piggy back chip for the a9l? I'm confused, Extremely new.I know it said connects to the j-3 port. Is it any good??

[@LeechMotorsports]

Correct. It is a piggyback chip and has a usb cable coming out of it for laptop connectivity. It is the best tuning device for stock computer applications.