someone had asked about a picture of an EFI in a maverick. mav man and ??(can't remember the other one) thanks for the help with picture resizing
That is beautiful!!! That just got me real excited!!!!Thanks for the pic. I am picking up a scrapper 87 5.0 stang. I am definetly going to use the engine....Will be a long project though.
Will, that is the one drawback with using EFI. I'm using stock mav exhaust manifolds just to avoid a further mess! Part of the problem is I'm too cheap to pay for a painless or windsor fox wiring harness. However, I have recently found out that the wiring kits are dropping in price substantially. Worth looking into if you are considering this swap. The other problem is that I retained virtually all of the systems that were on the 91 Mustang. That includes the EGR, TAB and TAD solenoids (which are not hooked up to a vacuum source so the computer only thinks they are working) and the canister purge valve (the thing that draws air out of the gas tank charcoal canister in the engine bay). By doing this I don't get a bunch of error codes from the computer. That is part of the reason it looks so crowded.
M.A.V. you still have more room than I do! I'm sure the engine I'm currently running would likely explode if I wound it tight enough to use that tunnel ram!
right now i just want to get the 302 in the mav with a carb and tear the shiznit out of the tires then i'll look for swap parts. has anyone looked into the edelbrock efi setup for the 5.0?
Jeremy It is worth swapping in the EFI but it isn't all that straight forward. I don't know if you are aware of this so forgive me if you already know, but the 86-88 stangs are speed density meaning that the computer calculates the proper amount of fuel to "squirt" into the engine. 89-and up use mass air which squirts fuel into the engine based on the amount of air that passes through the mass air meter. You can't modify the speed density without modifying the computer as well. It will dump in the same amount of fuel regardless of cams, intakes etc. On the other hand, mass air can be modified, to an extent, without changes to the computer. Of note, mass air was introduced in california in 88. It is fairly easy to convert speed density to mass air especially if you are keeping things basically stock. The stock mustang injection parts are quite cheap and can be found on ebay or the mustang corrall. I have attached a pic of the manual I used to do the swap. Well worth the 5-10 bucks.
are you running the speed density or mass air?i bet it must feel good to have the reliability of efi in the old one!
Yeah K Merring, I know you've done that. I'm just kidding you a little. It is a good feeling to finally get it running! And, since nobody else is interested in mavericks except the folks on this board I have to get the accolades from somewhere!
I run mass air in the Comet but don't rule the speed density system no good. It was used in a lot of Ford company cars up thru 92 or so. The Mustang HO engine with speed density pulls my Mark VII around pretty well for 3900 lbs, AOD and 3.27 rear gear and over 23 milesper gallon on the highway.
Thanks, efi mav, that book looks like it will save a million headaches. I Have an 86 efi mustang with speed density, so I am Very familiar with these engines. Many people feel that stock for stock speed density is faster, and that speed density will handle most small mods ok, as my mustang has. However, do anything major to it, and speed density is a waste of time. Since the mustang I am picking up will be speed density, I can go 2 diff ways, keep it mostly stock, and likely still turn high 14's in a mav, or modify it, which will require me to buy an upgraded mass air kit. did you stick with a c4, or go with the t-5? If you stayed with the c4, what is your gearing like out back, and what are your freeway rpms? I love the c4, but I also like the freeway and 3.73's too.
