yes it is, especially if you are interested in increasing power with cam, heads and other aftermarket parts.

i converted my 83 f150/351w to 88/89 speed density. does exactly what i want it to do, pulls my race car to the track with little of no maint. cheers, garsten

 

to use a mustang harness you will need it lengthend. it wont fit correctly from the start.

if you were to poke around on the Lightning forums you would find that most are still running speed density and prefer it over mass air. speed density will work just fine running aftermarket heads,intake,throttlebody,headers etc.. Cam choices just need to have a 114*lob seperation or more. this may require a custom cam made or in the lightning guys running the 302 ho cam with 1.7 rockers and getting great results. of course this is also on a 5.8 not a 302.

also you cant run a adjustable fpr on speed density. the computer will not like it unless you are using a tweecer.

know also that running that Ecam even with Mass air will require a chip or dyno tune to get running properly.

good luck

 

How would I go about converting to MAF? How would I wire it. Ya I know I am being a PITA but I have the cam here and figured if its not to hard I will convert it to MAF. Anyone have any wiring diagrams and a list of what will all be needed. I have all the wiring and the Computer what else would be needed? I have a few more days to get everything figured out so any help would be great thanks guys.

 

what year mustang did the wiring harness and computer come from? did you get the mass air meter? was it manual or automatic? what is the 3 charactrer code on the computer? if the engine is from an 88-93 stang, i would spend $30 and get the book by probst on ford eec-iv covering these year systems...it's worth every penny. cheers, garsten

 

fordfuelinjection.com should show you everything you need and how about lengthening.

what i dont understand is why you continue to think you need to run this cam. your going to get it installed and hate it and will not run right then spend more money removing and doing what has been suggested many times.

 

It came out of a 1989. I dont have the Mass Air Meter. I can get it the Junkyard the motor came from is like a 5 min drive from me. I think the car was a auto I would have to check on it. The 3 character code I am not sure. How would I check on that?

 

I didnt say I was set on doing it. I just want to find out everything to do it. I didnt know bout all that so I would like to learn about it all on future referances. If its going to cost way to much I wont do it and sell the cam and put the money toward some gears. I just like to learn about everything I can when i dont know about it. That way I can stay clear of it and have the knowledge. Sorry if it all came off wrong.

 

what tranny is currently in your truck now?

 

personally I love the E303 cam in my truck. Yes it was a pain to get everything working right but I think it was worth the effort. That's just my opinion though



Jim

 

It has a 5 spd in it. I not sure what kind I would have to look. It was an origanl 4spd but the owner before swapped in the 5spd. I noticed someone here has ran a cam with the lobe seperation of 112 and he only has problems on startup.

 

For the record here a few roller cams that are known to work well with Speed Density EECIV. Generally durations below 216/220.

........Cam # .............Lobe Cent....... Dur@.050...... Adv Dur.... Lift@valve
CompCams 35-510-8........112............ 208/216........ 258/266..... 533/544
Crane 444211..................112............ 208/216........ 262/270..... 530/530
CompCams 35-308-8........114............ 210/215........ 266/270..... 533/533
Crower 15510..................112............ 212/212.........275/275..... 531/531
CompCams 35-349-8........ 114............ 212/218....... 264/270...... 512/512
CompCams 35-310-8........ 114............ 215/220....... 270/276...... 533/544
Crane 444211.................. 112............ 216/220....... 270/278...... 533/544
OEM 5.0HO..................... 115.............211/211....... 266/266...... 444/444

These cams below work with SD, but run rough and require more tuning(chip).
CompCams 35-305-8......... 114............ 215/225....... 270/284...... 533/533
CompCams 35-351-8......... 114............ 218/224....... 270/276...... 512/512
Crower 15511.................. 114............. 218/224....... 278/282...... 468/486

 

Out of those cams what would put out more low end TQ?

 

Without plugging them into Desktop Dyno I'm guessing, but I'll make an educated guess. Best low rpm torque comes from a combination of highest lift and shortest duration, with least amount of overlap. That would seem to point to the 35-510-8, but the 35-308-8 has a wider lobe center(less overlap) so it may be slightly better. The other thing is that flow increases on the stock Ford head is all over by 0.500" lift, so a cam with more is a waste.. unless you have other heads. That makes the 35-349-8 a more sensible cam for stock or stock-ported heads.

The cam I have is the flat tappet Crane 444232...114...206/214...268/276...448/464.
It produces axle twisting torque in a 351 right off idle.. literally. I really need some traction bars because I keep damaging U joints. All these cams have similar profiles but with more lift, so they should all produce similar results.

 

Hows the idle with that cam? Does it have a good lope or a pretty small one?

 

None at all.. smooth as a baby's bottom. I know everybody assocoates the lumpy idle with a performance motor, but spitting and stumbling on an EFI motor means the computer doesn't have control, and that usually means poor performance and fuel milage. Some may miss that sound I guess, but I'd rather have that smooth idle-to-redline powerband that EFI offers.