this is just kinda open ended BS curiosity.
if you were going to put in either a 4bar fpr or white injectors (one step up in my case) which would you go with, and why?
what are the biggest advantages and disadvantages to each.
bring on the let me google that for you.

4bar Fpr Or A Size Up Injectors
Started by randomdude, May 21 2009 11:15 PM
4 replies to this topic
#1
Posted 21 May 2009 - 11:15 PM
my 854T5 with a nice list of mods was totaled by a dumb girl driver :(
1991 780TIC-RARE!-named "roxanne" by the GF.-more pressure-less restrictions-plenty of suspension bits to come!
1991 780TIC-RARE!-named "roxanne" by the GF.-more pressure-less restrictions-plenty of suspension bits to come!
#2
Posted 21 May 2009 - 11:16 PM
why do you think you need larger injectors?
1998 S70 T5M
Built motor, Nira i3+ EMS, GT35R, Tial 40mm Wastegate, Tial BOV, FMIC, 630cc injectors, 3" exhaust, Quaife diff, singlemass flywheel conversion, Spec stage III+..blah blah..
Built motor, Nira i3+ EMS, GT35R, Tial 40mm Wastegate, Tial BOV, FMIC, 630cc injectors, 3" exhaust, Quaife diff, singlemass flywheel conversion, Spec stage III+..blah blah..
#3
Posted 21 May 2009 - 11:23 PM
From my immediate experience, upping the fuel pressure will make no difference if you don't have a tune that can use the extra flow. If you have a standard FWD fuel pump, you may run out of pump capacity.

1998 V70 XR M66 10cm2Hotside/Garrett 60-1 Built T5 Motor '03 Ported Head EnemY21Cams TurboTuner 710cc Inj, DP back Dual Magnaflow 14834's May 2011 355WHP(@6400rpm) 347WTq(@4400rpm)@22psi Now with LGSpeed Header & Custom Intake Manifold! BIG 31x12x3"FMIC Currently sporting a vented piston!!!
#4
Posted 21 May 2009 - 11:49 PM
neither...
'97 850 T5; K&N cone filter, IPD Sway Bars, Powerslot Slotted Discs, Strut Brace, IPD Poly upper engine mount, Voodoo mbc, MSD Blaster SS, Magnecor Spark plug Wires, Autometer Boost gauge on A-pillar, Pioneer Head unit, pioneer 5 1/4" up front and pioneer 6"x9" in the back, Rockford 450w amp, ~600 MTX 10" Sub, pioneer back door speakers, and 3.5"clarions in the dash
projects: Porsche 2.8 race, Porsche 2.0 race(complete), Porsche 3.2 street (complete), Porsche 3.4TT street(complete), Porsche 3.0 street (complete), Porsche 3L twin-plugged carbed street rocket(complete)
2K Motorsports
projects: Porsche 2.8 race, Porsche 2.0 race(complete), Porsche 3.2 street (complete), Porsche 3.4TT street(complete), Porsche 3.0 street (complete), Porsche 3L twin-plugged carbed street rocket(complete)
2K Motorsports
#5
Posted 21 May 2009 - 11:56 PM
randomdude, on 21 May 2009 - 11:15 PM, said:
Both if you have a tune for it, neither if you don't. Other ways to increase stock fuel, like a HP pump.
I picked a pretty circuitous route and arguably cheated slightly, but I'm going to get there
1995 854 T5M Click for Mods
2005 S60 2.5 T
2010 XC60 T6 AWD
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