Hey I'm new to the forums but am having trouble with my fuel set up for my turbo as in how should it be set and tuned for 225hp.

right now i have the current parts:

log style SlowBoy Racing exhaust manifold
greddy type r bov
greddy turbo timer
Stainless Steel Downpipe from Slowboy racing
Slowboy racing 420a front mount intercooler kit
tial wastegate
t3/t4 garrett turbo
walbro 255 high pressure fuel pump
fuel lab Fuel pressure regulator
stainless steel fuel feed and return lines
greddy racing ti-c catback exhaust
basic gauges...egt,a/f ratio,boost,volts

what else would i need to achieve the goals im looking for? any and all help would be appreciated =]

i am looking into either the AEM boost controller or greddy profec II idk which one is better though

i just started not to long ago...lol, but someone will correct me if I'm wrong,


330cc injectors, and a sfmu should be somewhere around 250whp...

what kind of sfmu are you running? vortech 12:1 fmu or somethin else?

Originally posted by 98eclipse_rs-t
what kind of sfmu are you running? vortech 12:1 fmu or somethin else?

Yes, Vortech is the best if not the only lol, 12:1 or 10:1(don't know) your going to have to do some research there, check the wiki...or someone with the knowledge will post it on here...

i thought you needed another type of management if you used injectors of 270cc?

as far as i know your not going to need any other type of managment for up to 330cc injectors...

What I've been told is,
330cc injectors
SFMU
Walbro 255lhp Fuel Pump
FPR (Fuel pressure regulator)
and i think that was it to run a nice idleing 420a turbo up to 15psi...

alright so i basically need the bigger injectors and im looking into a vortech 12:1 now

Originally posted by 98eclipse_rs-t
alright so i basically need the bigger injectors and im looking into a vortech 12:1 now

WAIT...lol i forgot you didn't mension a built bottom end, this was said to me considering i have a built bottom end (eagle rods, je pistons) so in your case, you prob can't put 15psi...so in your case 6-8psi is good w/o destroying your internals, now if you had forged internals, you could do the 15psi and prob make 300 to 350HP...

i figured, im just trying to get 225whp for now, and planned on building the bottom end at a later time..im just trying to figure out the best fuel set up for that.

If you just want to make around 225hp on a stock bottom end, run low boost with a SFMU setup. You can prob get away with 270cc injectors, in which case you can just run the SFMU and wont need any other management tools. An idle fuel pressure of around 45-50psi should suffice.

You can go as high as 330cc on an SFMU setup, but you will want to lean out idle a bit which can be achieved using an SAFC. If you go any bigger with the injectors, your idle fuel pressure will have be too low and your spray patterns will be garbage. That is when a real management unit like MSnS can come in handy.

Good luck!

alrightt thanks for the help!

however if i did end up going with the 270cc injectors and the 12:1 vortech would i be able to run 7-8 psi boost on the motor at any point without a problem? assuming that low boost on a stock bottom end is 4-6 psi?

It depends on how big your turbo is. There are many variations of the t3/t4. Safe on a stock bottom end on a 16g is around 8psi, if you have a bigger turbo then its a little lower.

Originally posted by Slo2g
It depends on how big your turbo is. There are many variations of the t3/t4. Safe on a stock bottom end on a 16g is around 8psi, if you have a bigger turbo then its a little lower.

so if i had the following:
big 60 trim turbo
log manifold
je pistons 8:8:1
eagle rods
thicker head gasket
arp head studs
turbo return line
turbo feed line
intercooler
piping
silicone couplers
stock head
wastegate with spring set at 12 psi
hks bov stage 2
wideband
obx intake manifold
obx fuel rail
rc 330cc injectors
vortech sfmu 12:1
eBay fpr
walbro 225lhp fuel pump
unorthodox yep
fidanza stage 2 clutch with flywheel
hallman mbc

Do I need anything, ANYTHING ELSE?

im pretty sure i have a t3/t4 with a .57 trim

can i run 8psi on that with the stock bottom safely?