SuperEco06

I know this topic is pretty beat up, but I wanted to know if anyone has converted their car from the returnless system and how their cars performing now.

Area47

you're not the only one that is curious.

RedlineBrian

Neither are you.

SuperEco06

the biggest issue that is of interest to me is how converting fuel systems effects tuning

victory_red_SS

iTrader: (2)

I will be if the car ever gets done. Even then, as far as tuning goes, mine may not be a good example.

SuperEco06

haha, victory how is your car coming anyway, i heard of a rumor that its gonna be done by january, I wish i had the money to go rwd :-(

so back to fuel systems, anyone?

victory_red_SS

iTrader: (2)

Maybe the end of January. If you don't get an answer by then I will tell you how it worked

SuperEco06

haha, sounds good man, let me know if that shop decides to do a conversion kit, i'll be first in line.

someone must have converted toa return style system, theres been talk about it for months.

bc3tech

alphaJaguar was heading up the return-style conversion on RLF.... dunno how far it went tho.

denlou

Just curious, what are the advantages of such a system? They must be good in order to warrant that kind of investment into them, no?

victory_red_SS

iTrader: (2)

Constant fuel pressure.

Sw4y1313

So if i were to be running 2 fuel rails, could i just run a Y connector off the main fuel line and split to both rails, then have it Y together again before the pressure regulator, or would i need to run 2 seperate regulators. I plan on keeping the stock rail pressure, but with having secondary 65lb'ers on top the 24's in it, i want a constant pressure.

AlphaJaguar5

lol still working on it

I'm in school full time, work 25 hours a week and play DII College hockey so I wouldn't hold your breath if your waiting for me. I'll have updates every now and then but its down low on my priority list right now.

Z Speed

hey alpha can u pm me the number to flowtechnics..... I wanna get ahold of them for the cams and possible a head over the winter

distillion

has anyone ever tested the fuel pressure at wot?
ie, tap a gauge in the fuel rail, ect?

Jmc007

Yes, fuel rail pressure is constant to 60 PSI (specs says 55 to 60) whatever at idle or higher (highest) rpms (on a dyno).

AlphaJaguar5

my_bd tested at the schrader valve and it read a constant 58psi across the board. I sent him an end cap to test there but there were problems with the size i tapped it at so he had to retap it and I dont know what happened after that.

distillion

what was his setup?

SuperEco06

anyone know of anyone else running his setup off hand?

knwldge54

^That's the only reason I'm not gonna mess with this.

pierre

IIRC he had 3-5 PSI drop from idle to full power.

Pierre

distillion

interesting.
we will be looking at my fuel pressure saturday for my setup.
2.7, 60s, tune, ect.
if im not mistaken fuel pressure is suppose to rise at wot?
also what is the "danger zone" in psi drop for our cars at wot?

distillion

just tested mine last weekend, dropped from 76to70 from idle to wot.
just thought id share.

06blackg85ss

iTrader: (1)

well with my turbo setup, car idles at 61 psi, and goes up to @70 wot with no pressure drop.

distillion

hmmmm.
i wonder what the reason for that is.
also the fitting in the fuel rail, what if you drilled a tiny hole through it to allow more fuel to pass?