Custom Turbo MPFI 300

[Anonymous]

I am soon looking to purchase an early 90's F150 4x4 and I got an itch to use a garrot T60 HiFi Turbo I have in my garage. I will be custom fabbing a sheet metal intake and also a custom turbo header. I will be porting the head extensively and I will also have Ed Curtis grind a custom cam for the application. I am using a 70mm Throttle Body with a Pro-M 75mm mass air meter and 42lb injectors. Im looking to run around 15psi through a custom intercooler. I will be running a single 3.5" exhuast all the way back through a borla 3.5" muffler. This is the first time attempting a turbo build on a 6 cyl but it looks easier than the 5.0 and 5.8 mustang projects I have done in the past.

 

[Asa]

how much HP are you looking at making?
because 42lb injectors sounds like overkill... but that's mainly going by the fact that we rarely need the 19lb injectors...
i could be wrong though

 

[Anonymous]

because 42lb injectors sounds like overkill

Yea but don't forget that hes only running 6 cylinders. It would equal 8, 32 lbs injector if on a vee eight. 400 hp is what the injectors will beable to supply for fuel. Thats not out of the question with a turbo'd 300. This should work out real good.

 

[Anonymous]

Thank you for all your replies. As far as a horse power number Im really not sure because it is going in a 4x4 truck so I am shooting for torque more than anything else. Im hoping for 450-500 lbft or torque. The cam is going to be ground to lean more towards torque than horse power. Like I said this is my first turbo 6 cyl so Im just gonna see what happens. Im sure even if I miss my goal it will still be more than enough for what I need.

 

[Anonymous]

guys-
19-24 lb'ers are basically stock (yeah- some are 16), so a 42lb would be good, but I'd wait to run some flow #s first. You say T60 hiFi? Which frame is it- T4 or T3? Some guys get the T3 hifi confused w/ a T4.

42 wouldn't be overkill- provided you had something to drive it. Are you planning on keeping the EEC?

I'm running 55lb on my OHC (in sequential mode) w/ a GT35R turbo- If I can push enough air w/o making excessive heat, I'll be able to make 550hp. 300hp w/ aa T3 on a 300 should be easy...

 

[Anonymous]

MAF, you using a 96' EEC-V and wire harness then? or a 95-96 Calf. EEC-V/wire harness? those are the ONLY 300-6's that came with MAF, the others all use EEC-IV no MAF. 42# injectors should suffice but might be too small for 15psi boost (I've got 42# injectors on my 3.8L V6 and with 12psi @ 350rwhp I'm @ ~85% duty cycle) . I'm going with an EEC-V and wire harness off of a 96 f-150 for my turbo/blower setup (haven't decided to us my spare M90 eaton or buy a small t4 turbo yet) for my 89' EFI I6