i currently own a 1992 f350, 4x4, reg cab long bed, with a 351w and a zf5 s542 5 speed trans. the truck runs okay as the 351 was rebuilt (i have no idea on the specifics of that one ) at some point and the 5 speed was swapped in by my brother and i a few months ago. id like to gain some power due to the small block one ton not really having the get-up-and-go that id like, i also haul cars once in a while and would like a decent amount more passing power. i would prefer not to swap to diesel or big block since i just put so much effort into the zf5 which will not bolt up to a 7.3 or 7.5. from my research it seems that a turbo kit for a fox body mustang can be retrofitted, but i have a few questions about fuel, electronics, and other things of the sort. im looking for about 350hp, hoping to reach that with about 6-8lbs of boost. from what ive seen a windsor is a fairly low compression motor, therefor perfect for a turbo. i have seen many kits out there and id like to go ahead and have an intercooler for reliability. a t3/t4 turbo would probably be a good size. but i am very open to suggestions, your input is welcome here!
-thanks, SHELBYGT0

 

You could add a turbo or supercharger pretty easily with an FMU to boost fuel pressure and an MSD box to handle ignition retard, with boost kept to the mild end of the spectrum there would be no other EFI changes necessary outside perhaps a higher capacity fuel pump. The only other hurdle to overcome is plumbing all that into the dual throttlebody truck intake, but if you were to swap that to a single TB car style intake you would get better airflow along with eliminating that problem.

 

Well that's good to hear, I would either put a y in the dual intake pipes or just get a big single throttle body. I was mainly scared of the while speed density thing, would it run without switching to mass air? And if so would I need to and how could I tune it?

 

Superchargers were common on the older speed density mustangs so it'll work remarkable well actually. There are no single round throttlebodys that will just bolt onto the truck intake unfortunately.. you may be able to adapt an oval TB with some machining or a custom adapter plate.

 

awesome!, i was also considering upper intake manifold off of a foxbody with a single hole throttle body, im not sure how all that would work, and i believe the ports within the windsor intake are ovals and mustangs are rectangles (or vise versa) but i have a friend that works at a performance exhaust shop, he does alot of turbo manifold stuff so ill probably just get him to fab me up some sort of adaptor. is there anything else i need to worry about? thanks alot for helping me out here btw!

 

You can's bolt a Mustang upper on the truck lower.. nothing lines up, but with forced induction there is no need of those big long runners so if you could fab up a box upper you can make any throttlebody work. There are also lots of mustang style single throttlebody intake systems for the 5.8 motor like the Professional Products Typhoon.

 

FYI the ZF-5 trans will most certainly bolt up to a 7.5 or 7.3. There are quite a few trucks with that driveline combo from the factory.

 

Nevermind my mistake. The big block zf-5 has a different bell housing than the small block version.

 

Alright, thanks Conan!, I'm probably gonna get going on this project in the next few months, I'll try to put up some pics. It seems my biggest problem is going to be routing exhaust from the heads to the turbo, I'm thinking two passenger side shorty headers. Then convert the front of the motor to basically to a mustang (moving he power steering pump, alternator and such) and hopefully I can route around the oil filter without too many headaches. Haha. I'll look into that proffesional products typhoon. Thanks again bud!
-SHELBYGT00

 

Do the speed density Mustangs have a MAP sensor? And if so, how does it function with intake pressure instead of vacuum?