Discuss 1971 351c fuel injection? on AllFordMustangs.com, the place for Mustang enthusiasts.
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So i found out that everything will work minus the fuel rails, well, everything i planned on using. now i just need to know if i got everything, if i am missing something, please, let me know. thanks in advance.
Unless you want port injection I highly reccomend the Fast Fuel injection kit, its works really well and for 1700 at summit(who will meet ebay pricing) its really effective. I used Massflo and while its really good the Fast system works just as well - even better in some ways (the only real difference is the wet intake vs. dry - meaning dry flow air only and wet is fuel in suspension with the air. I think the ford stuff must come from a 5.8L(W) or at least the computer since the 5.0 and 5.8 both share the 351C firing order. If you use a TFI style distributor it must be for a 351W and the shaft must be cut down about 1/2 inch or so. the 351C&W use the larger diameter oil pump driveshaft so the 305/5.0L stuff wont fit. I never tried the edelbrock kit so can not speak of it. Is is worth doing?====oh yeah. Good luck
iv'e heard you can use a 460 tfi distributor or a 5.0 gear swapped distributor, is that true? i'll let you know how it turns out, i won't be getting it done until sometime in the summer. oh yeah, i forgot, i got a hold of the guy at trickflow and he said it would all work minus the fuel rails. then i just have to go get it dyno tuned once im done
the 460 tfi will fit as a direct swap. I reccomend you relocate the tfi unit to the firewall in aheat sink though, the rangers, tbirds and so on did this in the later 90's to final model run with the 5.0's the tfi overheats and shorts out - google it. you can probably get rails from summitracing.com, good luck. oh, suggest you use a pump for a 96 Econoline van - Awesome pump and whisper quiet.
That I dont know, they are different than mass flow in the ecu for sure. How much will you spend with all this other stuff? how much difference in expendiature to the Fast at 16-1800? all new wiring, sensors, handheld programmer and you dont need the host of other stuff. I know money is always tight but what if it runs but runs like crap then what? I'm just trying to be the devil's advocate thats all. If you dont flash the ecu it may not support air and fuel flow for a 5.8, might run really lean and melt something - like a piston? it may run closed loop and be worse than a flodded carb I really dont know, what do the "experts say"?
My advice to you is save just a little longer and go with Kit with proven results, customer supprot, warranty; your setup may even be better but who knows?
I am going to have to get it dyno tuned, and convert to mass air, its going to cost me quite a bit, but I think it would look pretty cool. it's confusing and will cost a ton, but, i don't know. we'll see.
no denying the coolfactor but for the FAST kit being speed density it really works great. the expense with a conversion to mass flow on a 351C is the wiring and computer programming.I have heard people say the 5.0 gt A9L is plug and play but I believe it may not be that simple. If the IAC(idle air control) sees that much more air go by it may try to close and then reopen to prevent a shut down resulting in surges from 200 to 1400 rpm, Ive seen 5.0' s do this with a bad iac motor. the RJM harness is 575 and the computer 275, then 29lb injectors, 75-90mm throttle body, tps, iac, map, temp probes x 2, rails, regulator, tfi dist, a Cleveland manifold with injector bungs(that is hard to find- really) you just ran past 2K. my massflo kit was 3200,
I think the fast kit might actually be your best value and its all new parts and support and warranty. by the time i ran all my lines in 6N SS hoses i was nearly at 4K - no kidding.
I think that is the way to go, the 90's A9L (I think) is the best computer out there. Speed density is not as good as mass flow wihich has a few more inputs to the computer and the computer is outstanding. Mass flow requires a mass airlflow sensor(hot wire type) Intake air control (motor or valve ) MAP sensor, 2 O2 sensors, temp sensor, Intake Air temp sensor, and TPS throttle position sensor. A used intake will have all of this stuff already on it and they very seldom fail. Do some google searches, it will really help you. I will ask my brother who is really up on this for a definite answer for you.