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95lwrx
04-08-2006, 07:31 PM
i am trying to figure a couple things out here, so first off i'll give you my setup-

94wrx motor swap,auto motor the one rated at 220 and i am also thinking the smaller injectors maybe 380cc? i have upgraded the turbo to a vf28 and fmic, full exhaust,etc. also have a walbro 255lph fuel pump

heres what i am trying to figure out as i pretty much have these injectors maxed out-
1. what injectors work with this motor?
2. i can't just put larger injectors in can i? being different rates and pulses?
3. i plan on getting a power fc, are there any other options for me?

Jaxx
04-09-2006, 03:14 PM
all the old injectors grey/light brown ish are 440cc

easiest fuel upgrade is 90 legacy fuel rails and sti injectors
relitivly cheep too

95lwrx
04-09-2006, 08:26 PM
i really don't think they are 440cc's i don't think i would be out of fuel already if they are 440cc's- i start to run out of effiency at around 16lbs. of boost, on a cold day i heard a real slight ping when boost creeped up to about 16lbs. then i quickly turned down the boost, also gas is not the best all we have is 92 octane.

i have also heard of people using 1.8l fuel rails and i think wrx injectors, in that case i have two 1.8 intake manifolds laying around.

Storm
04-09-2006, 09:41 PM
Where is your fuel pressure is at?

95lwrx
04-09-2006, 09:56 PM
still stock fuel pressure right now, not sure what the stock pressure is. would i just need a fuel pressure regulator to turn up the fuel pressure?

Where is your fuel pressure is at?

Jaxx
04-10-2006, 01:19 AM
*I* am using 1.8 rails and sti injectors (sidefeed) in my g

yes the stockers have been flow tested to 440 at 43 psi .. remember the td05 is a BIG turbo 505cfm a 1 bar (25% bigger then a vf-30)

i used impreza rails and i had to cut off the tabs and weld them on the other side

wrx injectors are top feed totaly differnt

Storm
04-10-2006, 01:54 AM
still stock fuel pressure right now, not sure what the stock pressure is. would i just need a fuel pressure regulator to turn up the fuel pressure?That is one way to increase flow without changing anything else. You don't know where your IDC is at right now so you don't know where the problem lies just yet.

95lwrx
04-10-2006, 09:52 PM
i am just trying to research as much as i can before i do something, all i know is i am running out of fuel, whether it is my injectors or could easily be the ecu, as it is a stock auto ecu with just a VOS chip in it.