Computer options to handle engine upgrades?
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Mountain Pass
Joined: Apr 2015
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Computer options to handle engine upgrades?
I recently picked up a 91 f150 with the 302. I would like to do some upgrades to it to make some more power. The two main things on my list are long tube headers and a cam.
Back in the early 2000s, I had a 91 5.0 Mustang that I did these mods too and more. It struck me that the 91 F-150 is not mass air like my 91 Mustang was but is speed density. I think I have seen people switch to the Mustang mass air computer in these trucks but I don't think that will work for me because my truck has an e4od transmission and that wasn't ever in a Mustang.
Does anyone know what options I have if I wanted to do the cam and other mods since I have a computer controlled transmission?
Back in the early 2000s, I had a 91 5.0 Mustang that I did these mods too and more. It struck me that the 91 F-150 is not mass air like my 91 Mustang was but is speed density. I think I have seen people switch to the Mustang mass air computer in these trucks but I don't think that will work for me because my truck has an e4od transmission and that wasn't ever in a Mustang.
Does anyone know what options I have if I wanted to do the cam and other mods since I have a computer controlled transmission?
Cargo Master
Joined: Mar 2007
Posts: 2,811
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Why would you recommend a stock replacement cam for someone that wants more power? I know, this sounds like it's going to turn into an argument, but I have no intention of that. There has got to be a good street/truck cam better than stock and not tailored to racing.
FTE Chapter Leader
Joined: May 2006
Posts: 12,335
Likes: 1,312
From: Central Mississippi
I converted to MAF with stock components & I run a 5.8 & E4 for about $300. But it takes skill & will need tuning. when you hit the limits.
I used a 512 Comp cam ($400 these days), Gt-40 heads, ported 5.0/5.8 hybrid intake, cobra rockers (near un-obtainable) & flat top pistons, shorties, etc.
190 hp/265 trq on SD, 210+/260+ on MAF, no tuning (all rear wheel dyno results)
Problem is, you'll never be satisfied & will keep pushing your limits.
Every body says "I just want a bit more oomph" & then....
I used a 512 Comp cam ($400 these days), Gt-40 heads, ported 5.0/5.8 hybrid intake, cobra rockers (near un-obtainable) & flat top pistons, shorties, etc.
190 hp/265 trq on SD, 210+/260+ on MAF, no tuning (all rear wheel dyno results)
Problem is, you'll never be satisfied & will keep pushing your limits.
Every body says "I just want a bit more oomph" & then....
Lead Driver
Joined: Sep 2002
Posts: 9,519
Likes: 2,028
From: North Texas
The one Conan pointed out is vastly larger than the peanut flat tappet cam the 302s had stock. I swear they were around 177/183 duration and about 0.390" lift at the valve.
I use a HO cam with 1.7:1 Crane Cobra rockers. Beyond cheap stuff when I got it. Works well for my needs.
E7 heads are still are the major cork once the exhaust is opened up. Buying real heads costs big bucks, yet yields big power gains.
Thread Starter
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Mountain Pass
Joined: Apr 2015
Posts: 125
Likes: 9
I converted to MAF with stock components & I run a 5.8 & E4 for about $300. But it takes skill & will need tuning. when you hit the limits.
I used a 512 Comp cam ($400 these days), Gt-40 heads, ported 5.0/5.8 hybrid intake, cobra rockers (near un-obtainable) & flat top pistons, shorties, etc.
190 hp/265 trq on SD, 210+/260+ on MAF, no tuning (all rear wheel dyno results)
Problem is, you'll never be satisfied & will keep pushing your limits.
Every body says "I just want a bit more oomph" & then....
I used a 512 Comp cam ($400 these days), Gt-40 heads, ported 5.0/5.8 hybrid intake, cobra rockers (near un-obtainable) & flat top pistons, shorties, etc.
190 hp/265 trq on SD, 210+/260+ on MAF, no tuning (all rear wheel dyno results)
Problem is, you'll never be satisfied & will keep pushing your limits.
Every body says "I just want a bit more oomph" & then....
Thanks for the reply and info! How did you go about making a Mass Air computer work with an e4od transmission?
FTE Chapter Leader
Joined: May 2006
Posts: 12,335
Likes: 1,312
From: Central Mississippi
It's a factory build. 94-95 5.0 trucks with AODE & E40D are MAF.
To run a 94-95 5.8 truck MAF it's a straight harness & computer for the trans (they are specific)
To run a existing 5.0 maf truck 5.8, drop in engine & correct flex plate.
To run a earlier truck, you need computer & harness removed completely by unplugging with ZERO cuts & transferred.
To run a 94-95 5.8 truck MAF it's a straight harness & computer for the trans (they are specific)
To run a existing 5.0 maf truck 5.8, drop in engine & correct flex plate.
To run a earlier truck, you need computer & harness removed completely by unplugging with ZERO cuts & transferred.
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FTE Chapter Leader
Joined: May 2006
Posts: 12,335
Likes: 1,312
From: Central Mississippi
There is another option called pimpx from a small independent company called stinger.
It uses open source Megasquirt tech.
It will literally run anything EEC IV. The pimpxshift (about $1400) version will run any computer controlled ford trans on the stock harness (with a few mods).
I use it now. If you are marginally computer savy, it will do anything the major manufacturers do & much more.
It uses open source Megasquirt tech.
It will literally run anything EEC IV. The pimpxshift (about $1400) version will run any computer controlled ford trans on the stock harness (with a few mods).
I use it now. If you are marginally computer savy, it will do anything the major manufacturers do & much more.
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Thread Starter
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Mountain Pass
Joined: Apr 2015
Posts: 125
Likes: 9
Are you saying I could get a 94 or 95 5.0 truck computer and it would be mass air already and run my e4od?
FTE Chapter Leader
Joined: May 2006
Posts: 12,335
Likes: 1,312
From: Central Mississippi
Yes. But are you the doit-yerself' kinda' guy? You'd do better aiming for 94 though.
Could be done with your 91 harness, I think, but not 100% sure the path.
Because if your looking for easy, it is not for everyone & the end result is still going to start getting sketchy once you get over 300hp at the flywheel.
Gains are not that major. But I also wanted sequential injection. First version I did by adding wires to existing 94 5.8 SD harness.
It developed a 5 volt reference issue I couldn't find so I harvested a complete 94 5.0 MAF harness & plugged it in.
I did it because I'm cheap & I could. And I bought the pimp as soon as I could save up my pennies.
But there are some working with dwindling resources of EEC IV tuning like Moates
Could be done with your 91 harness, I think, but not 100% sure the path.
Because if your looking for easy, it is not for everyone & the end result is still going to start getting sketchy once you get over 300hp at the flywheel.
Gains are not that major. But I also wanted sequential injection. First version I did by adding wires to existing 94 5.8 SD harness.
It developed a 5 volt reference issue I couldn't find so I harvested a complete 94 5.0 MAF harness & plugged it in.
I did it because I'm cheap & I could. And I bought the pimp as soon as I could save up my pennies.
But there are some working with dwindling resources of EEC IV tuning like Moates
Thread Starter
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Mountain Pass
Joined: Apr 2015
Posts: 125
Likes: 9
Yes. But are you the doit-yerself' kinda' guy? You'd do better aiming for 94 though.
Could be done with your 91 harness, I think, but not 100% sure the path.
Because if your looking for easy, it is not for everyone & the end result is still going to start getting sketchy once you get over 300hp at the flywheel.
Gains are not that major. But I also wanted sequential injection. First version I did by adding wires to existing 94 5.8 SD harness.
It developed a 5 volt reference issue I couldn't find so I harvested a complete 94 5.0 MAF harness & plugged it in.
I did it because I'm cheap & I could. And I bought the pimp as soon as I could save up my pennies.
But there are some working with dwindling resources of EEC IV tuning like Moates
Could be done with your 91 harness, I think, but not 100% sure the path.
Because if your looking for easy, it is not for everyone & the end result is still going to start getting sketchy once you get over 300hp at the flywheel.
Gains are not that major. But I also wanted sequential injection. First version I did by adding wires to existing 94 5.8 SD harness.
It developed a 5 volt reference issue I couldn't find so I harvested a complete 94 5.0 MAF harness & plugged it in.
I did it because I'm cheap & I could. And I bought the pimp as soon as I could save up my pennies.
But there are some working with dwindling resources of EEC IV tuning like Moates
Yes, I am do-it-yourself guy but unfortunately my time is somewhat limited so the simpler, and cheaper, the better!
Ideally this round of upgrades would be under 300 flywheel but may end up wanting to do more later down the road like aftermarket aluminum heads, stroker motor, higher compression, etc.
I had also thought about contacting Moates to see if and what they could do.
Is the '94 truck computer and harness the easiest most direct way to go then? If so, is it still sketchy after 300 flywheel or was that one of the other options? Is it just sketchy because it would need tuned after 300 flywheel or is there some other limiting factor?
FTE Chapter Leader
Joined: May 2006
Posts: 12,335
Likes: 1,312
From: Central Mississippi
All I can say is post #8.
The pimpxshift is the most cost-effective, ease of installation with what you have in the truck, and has the ability to be tuned with output growth of the engine and has technical support at the current time.
I suggest you do a search on "moates closing"
The pimpxshift is the most cost-effective, ease of installation with what you have in the truck, and has the ability to be tuned with output growth of the engine and has technical support at the current time.
I suggest you do a search on "moates closing"
Thread Starter
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Mountain Pass
Joined: Apr 2015
Posts: 125
Likes: 9
All I can say is post #8.
The pimpxshift is the most cost-effective, ease of installation with what you have in the truck, and has the ability to be tuned with output growth of the engine and has technical support at the current time.
I suggest you do a search on "moates closing"
The pimpxshift is the most cost-effective, ease of installation with what you have in the truck, and has the ability to be tuned with output growth of the engine and has technical support at the current time.
I suggest you do a search on "moates closing"
It does sound like the pimpxshift is the way to go. It's just tough for me to justify spending $1400 on that when that is about how much $ I have in the truck! lol I wish it weren't so complicated, and expensive, to get a choppy idle and a little more power out of these trucks.
Dang, I didn't know Moates was / is closing. I know a friend of his so I'll reach out to him to see if he can help.
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