I just recently purchased twin turbo headers & turbos for a 5.0 302 f-150. Now I just need something that can feed the fuel requirments engine will need under boost. I am not sure what to do. At first I was just going to purchase a Vortech FMU 12:1 ratio but I heard you can only run these safely at 5-6 psi and 7psi is pushing it. I plan to run mine a 10-15psi and was then thinking about getting aerometer fuel pressure regulator but not sure if this would work for as much boost as I plan to run. Not sure what size fuel injector #'s to get either and dont want to waste money testing different ones out. I know that I am going to install an intank 255lph pump to keep up with turbos but as for FMU, Fuel Pressure Regulator and Fuel Injector #'s I am at a loss. If anyone knows what a good combination would be please help me out here. Also I was planning on getting a mass air conversion kit from IST with an 80MM MAF Meter that is tuneable for almost any size injector. If anyone has an IST MAF conversion kit on their truck could you please let me know if it is actually worth the money. If no one has tried IST MAF conversion anyone at least tried a Laptop Tuneable MAF Conversion kit from Dunne-Rite Performance. Any help would greatly be appreciated.

 

I would say your best buy would be to look at the twin turbo 5.0 mustangs and see what they have setup. I can't imagine that the injectors they use and so forth would be that much different.

 

what tranny is in your truck? if its an auto you will need a bauman stand alone unit to run the tranny so you can run mass air.

if you run the proper size injector, massair meter and get it tuned then an adjustable fpr or fmu would not be needed.

 

I am running stock E4OD transmission with a 3500 stall torque converter that can handle up to 500hp. I know for a fact the dunne rite performance maf conversion kit needs a stand alone unit to control E4OD trans but the the IST MAF conversion kits dont as you can control shift points, fluid pressure and shift firmness with a laptop computer. But I am not sure how well tuneable their kits are for engine modifications like boost. As for bauman stand alone kit can you control shift points, fluid pressure and shift firmness. If so where can I find one. As for injectors I was thinking about getting somewhere between 36# to 42# injectors. No longer getting FMU was looking at aeromotive fuel pressure regulator that has a fuel pressure guage attached to it. You mentioned that fpr would not be needed if it were tuned properly but would it hurt if I got one that was a little better than stock.

 

Don't make guesses when it comes to forced induction. Buy these two books: Turbochargers by Hugh McInnes and Maximum Boost by Corky Bell. Each one has good info that build on each other. There are formulas that you can do that will tell you injector size based on calculated airflow and BSFC. They also have formulas for calculating airflow from the turbocharger; any turbo, and how to read compressor maps. The Turbo Forums.com is a good online source for all things turbo. Read through their forums and FAQ's.

 

as for the bauman

Baumannator TCS Electronic Transmission Control System

 

i would run the Baumanator setup and then get a wiring harness etc.. from here and run a mustang mass air ecu
rjminjectiontech.com