Stock 5.0 upper vs HO upper intake

[jfl1960]

Those of with 5.0l are usually well aware of Tom Moss. Be very careful following his work, he does caution you it's really easy to ruin an intake. It's still a waste of time without doing a cam at least. Better off going with an Explorer intake. You going to spend the money on a tilt front end and a 9" but don't want to spend good money on an intake? 200 hp is not squat in todays world, the latest V-6 Mustangs or others will run circles around you - sorry but that's more reality.
Dave

Jut got into ford stuff this year, never turned a wrench on a 5.0L until a 12 months ago or so, it's not surprising I didn't know who Tom Moss is, he sure has got some skills, and likes to share his knowledge. As for the tilt front end I built it myself and narrowed my own 9", along with fabing my own engine mount adapters and much more. 225 hp from this motor would be fine for now, wish I had tons to spend but hell I am just a working stiff having some fun. as time goes by I will eventually get bigger and better but for now this stuff is FREE and so I figure why not use it.

The reality is that this is an 86 non-HO motor with limited potential and in present condition about 150 screaming ponies, lol, bumping that up by 75 or so horse without spending any money on parts,except for gaskets, is a wise move in my mind and well worth it. An explorer intake will cost me at least $200.00 to $300.00 from ebay (looked around locally for one and they think they are gold, want like $300.00 to $400.00 for them, just not happening) plus s/h and I am in Canada, once duty and crap is added it will be like $400.00 to $500.00, and what would I gain from it, nothing because the motor will not take a big enough cam for this intake to actually work at it's peak. I think spending that money on my other motor for something like forged pistons or a nice NOS kit, or new intake for the new motor etc... would be wiser money spent, just my opinion though.

 

[dangerranger83]

My 200hp is enough for me, the going to FI would be for better mileage but from what I'm getting now, i have done 40 miles on just over an 1/8 of a tank, which shocked me due to i filled up the other day and got my gauge working again today. I was getting 30 miles to 3/8 of a tank but a carb change is so far paying itself off.

A nice upgrade i would like to do is go to a set of pedestal roller rockers, good for a couple more horses.

Sent from my rooted SPH-D710 using Tapatalk 2

 

[jfl1960]

My 200hp is enough for me, the going to FI would be for better mileage but from what I'm getting now, i have done 40 miles on just over an 1/8 of a tank, which shocked me due to i filled up the other day and got my gauge working again today. I was getting 30 miles to 3/8 of a tank but a carb change is so far paying itself off.

A nice upgrade i would like to do is go to a set of pedestal roller rockers, good for a couple more horses.

Sent from my rooted SPH-D710 using Tapatalk 2

Danger if you can get the parts cheap enough then go for it, if it doesn't work out then switch back to carburetor, roller rockers at the correct ration are a great upgrade on any motor. Just think once you go to efi then you can drop in a car starter for those cold days, lol.

 

[Mac]

Danger if you can get the parts cheap enough then go for it, if it doesn't work out then switch back to carburetor, roller rockers at the correct ration are a great upgrade on any motor. Just think once you go to efi then you can drop in a car starter for those cold days, lol.

I didn't mean to be harsh at all but wanted you to be well aware. Good luck, sounds like you're heading in the right direction.
Dave

 

[jfl1960]

I didn't mean to be harsh at all but wanted you to be well aware. Good luck, sounds like you're heading in the right direction.
Dave

 

[jfl1960]

The stock Mustang TB's were 55mm and 60mm for the HO's, that's the nominal dims. Not sure that I'd bother porting the manifold at all. The '86' should be SEFI, not batch but still a SD system. Batch fire fired two sets of four injectors at a time. HO cam will run fine with the non HO comuter, just change the spark plug wiring. Bigger injectors if going to a HO cam, 19#. Chnge in TB doesn't require an increase.
Dave

So your saying that the SD non ho computer will work as long as I am using Speed Density or for both Speed Density and Mass Air Flow?? Would be nice to be able to use my computer from the 1989 Crown Vic I got the wiring harness from, and it is SD.

 

[dangerranger83]

Being that my truck is my only vehicle I cant just try it out and if it doesnt work then switch back. Plus with a child on the way in the next 3 weeks, I have done all the major mods I can to the truck for awhile.

 

[bobbywalter]

damn i deleted my response

 

[jfl1960]

Being that my truck is my only vehicle I cant just try it out and if it doesnt work then switch back. Plus with a child on the way in the next 3 weeks, I have done all the major mods I can to the truck for awhile.

I hear ya Danger, sucks to be broke and wanting to do mods, well family is more important, good luck with the new arrival your in for a fun ride.

 

[Mac]

Basing my coments per a book on "How to Build and Modify EFI 5.0 Fords" The HO cam is really kind of tame, not much duration and a wide LSA, those are what usually cause problems. Looked again and it says "Should Work" but might cause idle stumbles. Maybe the Explorer cam would be better.
Dave

 

[jfl1960]

Basing my coments per a book on "How to Build and Modify EFI 5.0 Fords" The HO cam is really kind of tame, not much duration and a wide LSA, those are what usually cause problems. Looked again and it says "Should Work" but might cause idle stumbles. Maybe the Explorer cam would be better.
Dave

Thanks for the reply Dave, I found the same info after I posted the question to you, looks like a new computer will be needed, hmm explorer cam... maybe will price both the computer and cam and least expensive wins, but the computer will also run my next motor so gotta do some thinkin on that one. Found it on http://oldfuelinjection.com, explains bank and sequential injector firing orders and how their respective computers work:

Bank Firing Injectors
� Bank fire means that the injectors are divided into 2 groups. On V8 engines cylinders 1 4 5 and 8 open together and cylinders 2 3 6 and 7 open together. This creates an equal distribution of fuel atomization inside the intake manifold.
� This usually works just fine on engines, in fact you can buy an after market programmable fuel injection management systems that is bank fire and can support 1000+ horsepower engines.
� Bank Fire program is not dependant to the firing order of the engine. The injectors do not match the spark order of an the engine equal distribution of fuel atomization inside the intake manifold still exists Idle quality and fuel economy can not be as greatly tuned as Sequential can.

Sequential Firing Injectors
� Sequential fire means one injector is fire a while the intake valve is open. This creates an equal distribution of fuel atomization inside the one intake manifold runner during the intake stroke of that cylinder..
� The programmed time of when to open a injector is matched to the camshaft grind profile. People get into trouble here because camshaft swaps that do not match the program can affect low RPM stability of the engine.
� Sequential Fire program is also matched to the firing order of the engine. If the injector order does not match the spark order of an engine low RPM stability of the engine will be lost. High RPM will still create an equal distribution of fuel atomization inside the intake manifold. But idle will suffer poorly.
� Sequential Fire program gives greater ability to program better idle quality and fuel economy, but it must be all matched in the program for these gains. There is NO performance gains to be had from sequential firing injectors.

 

[bobbywalter]

this amazes me.

 

[85_Ranger4x4]

Basing my coments per a book on "How to Build and Modify EFI 5.0 Fords" The HO cam is really kind of tame, not much duration and a wide LSA, those are what usually cause problems. Looked again and it says "Should Work" but might cause idle stumbles. Maybe the Explorer cam would be better.
Dave

IIRC the Explorer cam is a little "truckier" than the Mustang HO cams. A tad more for low end power.

 

[Mac]

this amazes me.[/QUOTE
And why is this? Looking again and the early HO's were SD and ran the same cam as later so--------is there a problem or not. Every different car computer runs a different fuel map.
Dave

 

[bobbywalter]

this amazes me.[/QUOTE
And why is this? Looking again and the early HO's were SD and ran the same cam as later so--------is there a problem or not. Every different car computer runs a different fuel map.
Dave

theres way way more to the firing order issues and the way the o2's deal with it.


processor specific calibrations are potentially huge from years and models, too many to know.

its old and simple on the abc combinations and known performance combinations, but the amount of wrong data still out here is shocking. i have moved away from it and am not as sharply versed.

the truck cam which ended up being basically universal in the mid 90's with the advent of sefi and maf slowly implementing across the f series line with windsors and is what is found in the explorers lays down too soon for me. it does have lower grunt, but use-ably better when compared to even a stock ho cam in daily driving conditions i dont agree with...with rockers and timing things change of course.




past all of that, the original poster and danger ranger for instance are not going for max performance and do not have huge mod engines.

i would be tempted to run a 90 351 truck sd bank setup and call it a day.

run a 2 1/4 headpippes into a single 3 in and more then likely live happily with the results.

port matching the regular car intake is fine if that is what you have. going to the junkyard and getting a explorer intake would be ideal, but seems the op does not have that option.


i know i can produce the working setup i describe for less then a decent carb. prices are way up from what they used to be and like carbs old obd1 efi trucks are getting harder to find here, and carb setups nearly impossible at the u-pull yards.

still likely pull it off under a 100 bux though for whats required.