BBS Single Turbo options

[battman]

I am currently looking at a Garrett T04s 60-1 .84 A/R turbo for my setup. I am looking to make 550 to 600 hp with it. What do you guys think? Any other turbo suggestions? Engine: 880 casting 350 Scat forged crank Scat rods Forged 8:5:1 pistons World Products Sportsman II heads Comp Xtreame Xfi 276 cam TPIS mini ram with 42# injectors Controlled by 12200411 ODB2 GM ECM with EFI live custom OS

[junkcltr]

What crank trigger wheel and cam sensor setup are you going to use with the 411 ECM?
Expensive tuning software for the 411. What made you decide to go with OBDII?

EDIT: I will be surprised if the 42#/hr injectors make it up to 600 FWHP. What BSFC do you plan on having at peak RPM? Since you are going with a SEFI ECM, then you might as well go with 60#/hr or bigger injectors. The sky is the limit with SEFI and injector size. Oh yeah, the 255lph (67 gph) Walbro at 13.5 volts starts to run out of flow around 600 FWHP at stock fuel pressure with boost.

[battman]

Vortec L31 crank sensor and timing cover and vortec dist with cam sensor. I already have the harness ready to go and i already have EFI live. the reason for the 411 ecm, sequential fuel injection and the 411 ecm can run with a two bar map and custom boost OS. so it looks like I am surpassing my fuel system limits at 600FWHP. The reason on the 42# injectors is that I already have a set of new ones on hand.

[junkcltr]

If you keep the fuel pump voltage up you will be OK with that.
If you can get a BSFC of .50 then the 42#/hr will make it to 600 FWHP at stock fuel pressure. At worst you can use an adjustable fuel pressure regulator and turn it up from 43 psi to 53 psi. Just keep an eye on the curve for the 255 lph Walbro because fuel flow gph decreases as pressure increases. You are very close to exceeding the limits of the pump and injectors at 600 FWHP depending on your engine BSFC. Most old chevy V8s I see run around .55 BSFC.

Example:
-> FUEL INJECTORS <-
43 PSI fuel pressure (stock TPI)

90% injector duty cycle
straight gas
(42*8*.9)/.55 = 550 FWHP <-- .55 BSFC
(42*8*.9)/.50 = 604 FWHP <-- .50 BSFC

-> FUEL PUMP <-
(42*8*.9) = 302#/hr of fuel ---> 302/6 = 51 gph ---> 51*1.2 = 60 gph fuel pump requirement (20% margin); 43 PSI+boost PSI
If running 10 PSI of boost, then you have 43+10 = 53 PSI of fuel pressure that the pump sees
Look at the APE engineering voltage vs. fuel flow for the 255 lph pump. You will see 600 FWHP is about the max. for it using boost.

[WheelsUp84z]

I dont know if i see that 60-1 supporting enough air for 550hp with that combo. You would probably need something with at least 70mm inducer..the MP t-70 with a .68 AR should spool quick and get you to you're goals, there's plenty of mustang guys in the 10's with that turbo on a pretty much stock motors.

[junkcltr]

Yeah, that 60-1 will be blowing a lot of hot air but with a normal turbine it should spool like a mother. A 70mm inducer would fit better.

I see that Dave@majectic over at turbomustangs has a special for the Borg Warner S400 with a 1.01 turbine for $565 with no core charge. HP is just about endless with that unit..........peak of 98 lb/min. I forgot, you wanted 550 - 600 HP. Rear wheel or flywheel?

[WheelsUp84z]

i have a tv8102 for sale over on TM.com as well 78mm wheel, 1.23 AR t6 flange.. its freshly rebuilt and i'm only looking to get $350 LMK.

[junkcltr]

A T66 would work out nice.

TM.com has a "for sale" page? I can't seem to find the link for it. I made a turbo header for my truck that will fit a T6 diesel flange and an adapter to mount T4 turbines on it so I can try out some of the turbos I bought. That TV8102 is tempting, but how many turbos does one need.

[battman]

I think there is a restriction on wheel size to around 61mm on the BBS header due to hood clearence. I would like to know if anyone is running anything bigger on the BBS. i would love to go bigger if possible

550 to 600 at the fw

[junkcltr]

Check out the "Last Run..." thread from BBSDesigns. I think TurboTPI said he fit a Garrett GT4294 on the BBS single header. That has a 70mm inducer. The map is good for up to around 800 FWHP.