beachFC

iTrader: (13)

Searched for about 15 minutes, but couldn't exactly come up with a definitive answer.

Short mods list:
Rebuilt s5 jspec(not running yet)
Intake/exhaust ports about as big as they can get
RA classic seals, solid corners etc.
RTEK 1.7
750cc Seccondaries
Stock prims
Walbro 255

I have an aftermarket FPR that I'm wanting to run, but am sorta skeptical about running it along with the stock FPR.

1: Is it possible, or even worth it to run an aftermarket FPR with the stock rails+FPR?

2: Can/should I just cut the stock FPR off, and weld a barb onto it?

misterstyx69

iTrader: (142)

use the s4 TII rails and heighten it with 4mm spacers to the secondary rail
(check out Rising RPM - Home They will mention this on their aftermarket rail setup)

beachFC

iTrader: (13)

So just banjo the primary, and barb the secondary?

M14x1.5 is the size I need for the secondary correct?

misterstyx69

iTrader: (142)

RETED has all the info on the other forum where he converted it all to A/N Fittings.

It may even be in the Archives,but hey..your dilemma.my suggestion.
I got a gallon of oil to clean up after a blown sender...Yay..

GrossPolluter

iTrader: (1)

There is no point in running 2 fpr.
Use the s4 t2 fuel rail and do a pulsation dampener delete.
I did not want to redo all of my fuel line from the pump to the rail, so I kept everything 5/16", but with AEM fpr. I am only expecting 300whp range

beachFC

iTrader: (13)

Okay, now I'm getting pissed off.

I can not, for the life of me, find an m12x1.25 to 5/16 barb fitting for the secondary rail.

I may run a m12x1.25 to AN-6, then an AN-6 to 3/8 barb fitting. But then I'd have to shove the 5/16 fuel line onto the bigger 3/8, and I'm not real comfortable with that.


What the hell is everybody doing to run FPR's on S4 rails?? This is turning out to be pretty annoying.

2-N-D-pink

iTrader: (27)

They remove fpr and pulsation damp along with the secondary banjo bolts and such...then it's a matter of using AN fittings right on the rail. Unlike the s5...everything is removable on s4 rails...they are also aluminum so they get pretty when you polish them.

clean87

iTrader: (1)

maybe this will help, this is what i did

FC3S Pro v2.0: Mods - Fuel System

i bought all fittings from summit, good luck

misterstyx69

iTrader: (142)

THAT is what I was talking about,.all parts listed to do it right there

misterstyx69

iTrader: (142)

by the way,.,an engine will lose 4 litres in 10 seconds through a 1/8th sender hole!..