larger throttle body on speed density?

[mtkawboy]

I emailed Ryan @ fuelinjection.com, sorry for the confusion. He told me what I thought all along to change to mass air. Better & cheaper plus I have called all those chip guys with no luck at all. I should have started with the right car in the beginning.

 

[Ryan]

The ONLY time you are forced to use a Ford Speed Density computer is....................
90-95 Trucks with the E4OD transmission
Those are a PITA because of the E4OD, Mass Air costs $1000-$3000 to do it correctly.
there are a few options for tuning with those SD computer, but it still costs $350-$800

So if you can get Mass Air for less than $350 you are better off.

Plus on top of that, if your motor truely needs computer tuning, you really need Mass Air to help out. Speed Density tuning is a lot of work or a lot of money.

There is a reason the aftermarket (and my harness) is designed for the famous 89-93 Mustang computer. It's that good

 

[SaddleUp]

Why do you have to buy the entire car?
Computer $125
MAF sensor $25
MAF pifgtail $10
VSS pigtail $7
------------------------
total $167 to convert a SD system to Mass Air

Where can I get the MAF sensor for $25. The local parts store quoted me over three times that even with my discount. (My MAF sensor is bad so I'm running the 5.0 SD ECM on my 5.8 until I get another one at a reasonable price)

As to the E40D can't a person set it up with the Mustang MAF system and then add an aftermarket tranny computer? Even at $500 for the tranny computer it seems like that would cost less. Or maybe that is what you were referring to.

 

[j.r.nice]

I have always been a carb guy......now you have all made me curious. I have an 89 FS Bronco with 351 (FI). What type is mine?.... and what kind of mods can I do for some hp gains

thanks

J. R.

 

[Ryan]

Where can I get the MAF sensor for $25. The local parts store quoted me over three times that even with my discount. (My MAF sensor is bad so I'm running the 5.0 SD ECM on my 5.8 until I get another one at a reasonable price)

$1.75 curent bid:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2481672775&category=33557
you didnt look very hard

As to the E40D can't a person set it up with the Mustang MAF system and then add an aftermarket tranny computer? Even at $500 for the tranny computer it seems like that would cost less. Or maybe that is what you were referring to.

still got wiring, most people don't like wiring, injectors, MAF, mass air computer, tuner or chip
you just spent $1500+ on the swap

I have always been a carb guy......now you have all made me curious. I have an 89 FS Bronco with 351 (FI). What type is mine?.... and what kind of mods can I do for some hp gains

Go to http://fullsizebronco.com/, or wait for Bronco Driver magazine

 

[SaddleUp]

$1.75 curent bid:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2481672775&category=33557
you didnt look very hard

So I can add it to the other two I have here? No thanks. I'll watch the bidding but I have spent way too much time watching bids on Ebay for the items to go way out of control. (It took several weeks to get a decent deal on my ECM) As to the MAF the first one that arrived was missing the sensor itself. Chalk one up to not checking the wording closely. Since it was a throw in with injectors I did not complain much. The second one arrived complete but it looked as though it had been soaking in salt water for a few weeks. I tried it anyway several weeks after it arrived (Since the first ECM I received was not what I was looking for) with the Mustang ECM that took several weeks to get. By the time I was able to check it enough time had passed that it was useless to try to do anything about it when it did check out bad. (And no, cleaning did not fix it)

 

[mtkawboy]

I bought the entire car so I could sell everything else and end up with the motor and trans for free. I guess that was stupid of me

 

[Ryan]

Sombody used a 5.0L Explorer MAF sensor with sucess. It's larger than the Mustang MAF too

 

[SaddleUp]

I bought the entire car so I could sell everything else and end up with the motor and trans for free. I guess that was stupid of me

Ya, I guess we need to get smart and start spending money when we don't have to. My first 5.0 came out of a 90 Grand Marquis that I bought for $200. I milked every penny I could out of it before I hauled it to the shredder.

Funny story, Just this last weekend we (my brother) bought a 1988 F250 for $300. Before we even had it loaded he had the bed sold for $110. When the guys pulled the bed they gave him another $5 for another bracket. At this point he has $185 into the whole thing. Scrap will bring in at least $50. He should be able to sell the 10" rear end for at least a couple hundred and the drivers door is good as well. Granted it was a bit of work but he now has what looks to be a sound 351W with all of the fuel injection parts on the floor of his garage. He will probably go SD SEFI on this for now since we already have an extra ECM. Later we will add MAF when another ECM comes our way.

I guess I better call him and let him know we were stupid to do it this way.

 

[SaddleUp]

Originally posted by Ryan
$1.75 curent bid:
http://cgi.ebay.com/ebaymotors/ws/e...;category=33557
you didnt look very hard

Current Bid: $41.00
Shipping: $11.00
Time remaining: Over 8 hours.

 

[Ryan]

88 F-250 computer is not SEFI
88 F-250 harness will take a lot of work to fit the early Bronco.
Truck intake won't fit under the hood

 

[SaddleUp]

88 F-250 computer is not SEFI
88 F-250 harness will take a lot of work to fit the early Bronco.
Truck intake won't fit under the hood

Point 1, As mentioned already we have a SEFI ECM already so it isn't necessary that the F250 ECM even work.

Point 2, Not really, Not much more than what mine took when I put the wiring from a 90 Grand Marquis in it. Just because most people do not like to or are afraid to get into the wiring does not mean it is that difficult. Just about the only thing that will require more work is separating out the injectors. As to the harness itself it will be completely redone anyway for a custom fit. If all else failed we would simply throw out the truck harness and completely build a new one from scratch.

Point 3, Want to make a wager? I'll bet it will fit under the stock hood without modifying it at all. Before you take this bet consider the fact that I never said it was going in an "Early" Bronco.

Point missed, By getting the entire vehicle it can cost considerably less than buying each individual component. By watching for a good deal it is often possible to recover enough money to make it so the parts you want end up being free or in many cases to make more money back than what was spent in the first place. Granted I would not do this just for a MAF sensor I would do so to get all of the EFI parts.

 

[Ryan]

I didn't miss your point, you missed the title of this topic. My statment was that you can mix and match parts. You don't have to use all the parts just because Ford did. The question was about a larger throttle body, then performance add-ons. You won't find any performance parts in trucks or speed density cars.
Your point of buying a cheap junker and selling it off doesn't answer any part of this topic. Sure it's a great idea if you simply want EFI for extremely cheap.

There is no SD SEFI computer that will run a 5.8L engine. Sure it might start, but it will run dangerously lean, and the engine will fail. Might as well put a carb on the engine.

My comment about the harness fitting the vehicle was based on the early bronco. This is an early Bronco forum, I assumed you were talking about one. Who knows what you're talking about, I think you're simply trying prove something. I know how much work is involved in building harnesses. The truck harness has the computer on the wrong side for a bronco, not a big deal but the entire harness would have to be re-built. Not many people want to cut every wire. Not many people have to skills, tools, or suplies to build a quality harness.

 

[SaddleUp]

I didn't miss your point, you missed the title of this topic. My statment was that you can mix and match parts. You don't have to use all the parts just because Ford did. The question was about a larger throttle body, then performance add-ons. You won't find any performance parts in trucks or speed density cars.
Your point of buying a cheap junker and selling it off doesn't answer any part of this topic. Sure it's a great idea if you simply want EFI for extremely cheap.

There is no SD SEFI computer that will run a 5.8L engine. Sure it might start, but it will run dangerously lean, and the engine will fail. Might as well put a carb on the engine.

My comment about the harness fitting the vehicle was based on the early bronco. This is an early Bronco forum, I assumed you were talking about one. Who knows what you're talking about, I think you're simply trying prove something. I know how much work is involved in building harnesses. The truck harness has the computer on the wrong side for a bronco, not a big deal but the entire harness would have to be re-built. Not many people want to cut every wire. Not many people have to skills, tools, or suplies to build a quality harness.

Your right I got off the subject of this post for which I apologize to the person who made the post. I think the question was answerred earlier on that the TB could be changed to a larger one. The only thing that seems clouded is whether or not a change to MAF is in order or not.

 

[Ryan]

probably not needed. Mass Air will yield better responce, a little more power, better idle quality.
AND the big advatage is the ability to keep all those increases over time while the engine ages.

piston rings fail, oil blow by, gunk build up on the valves and inside the intake....
Mass Air will learn and run the engine almost exactly the same as these happen. thats why you see so many cars 150,000+ miles, blue exhaust, sputtering down the road, and the driver is cluesless.
Speed Density can try to learn, but is handicaped by the factory preset programing.

Mass Air still won't help you if you get crazy with the cam, install rice-burner injectors, or increase the displacment.
need to re-program the computer.