Ok heres the deal... We recently aquired an 89 302 out of a truck with this gigantic feul injection setup. It has that two barrel throttle body thing. So here is where I am going with this. How hard is it to install and how expensive is it to install. And how well does it work? It seems better to me. I wouldn't have to buy 500 dollars worth of new manifold and carb and I would get better gas mileage???? It just seems all around better to me. Thanks. -Todd:confused:
That $500 you'll save by not having to get a new manifold will be spent on a hood that will clear the tall Truck manifold. It won't fit under the stock Mav's hood. Just somethign to consider, good luck
COnvert it to a mustang style intake and throttle body. I will have an intake, throttle body, egr spacer, tps, for sale soon out of an 87 mustang. the injectors and wiring should be the same.
That motor is setup for low rpm pulling power with a longer intake track. The cam is done pulling hard at about 4000. It's not like a car motor.
How much for the mustang setup? I might be intersted. It all depends which is all cost effective and reliable. And of course what my dad scott wants to do. I would probably be changing the cam anyway. Would it be better to make it fuel injected or just take all that off and make it carbed?
It would be easier to make it carbed, but better mileage to go with efi. If all you need is the tb, upper/lower intake, egr spacer, tps, and idle air bypass, I will take $100 plus shipping.
Todd, check this one out! You can get stock stuff very cheap. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2413555395&category=34202 You can also try corral.net, there are a lot of stock EFI parts for sale on that site. THe intake in the ebay add is better for the mav because the air inlet is at an angle which will clear the shock tower more easily. Remember, it is easier to get a complete donor car for your parts. With the intake you will need the engine harness, computer, computer harness, fuel lines, fuel pump etc!! It will likely cost more in the end to piece a motor together than buying a donor car! Also, the truck computer probably would not work well with the mustang intake etc. The timing curves etc are better suited for a truck.
I have no idea of what I have to do exactly to make this work. I am only in high school so my cash is limited. What exactly has to be done to make this work?:confused:
I also have a complete EFI system, minus the O2 sensors from a '86 Grand Marquis, 5.0L, with the later firing order. The harness would probably need some work in repairing a couple wires that got slightly burned on the exhaust manifold, but other than that, it ran perfectly. Email me if you're interested, and I can give as much detail as I know.
Again, the marquis is not setup for performance. It is also the 302 firing order not the 5.0/351 firing order unless someone has changed it. In 86, the marquis had a much smaller throttle body and intake when compared to the mustang (52mm vs 58mm). Not much of a difference? Consider that 58mm flows 20% more air! Also, 86 was a bad year for EFI as the mustang also had a much more restricted intake and heads. Find an 87 or later donor mustang or 5.0 HO lincoln Mark VII. Todd, it isn't a matter of hooking up one or two wires, you have to understand the wiring harness and what sources of power are needed where. For example, fusable links, power on or key on only power etc. If you look in the archives I posted a picture of a manual the ford motorsport produces that was invaluable when I made the converison. Good luck.
Thank you everybody very much Thank you very much for all the information everybody has given me on this conversion. I think it might be too big of a task for me to tackle just yet. I still have to work and study. Eventually I will do this but for now I think I am going to go with a carb. Just seems too much to swallow for me just yet. Maybe in a year or two. thank you again for all your help. -Todd
