Installing Fpr On Rb20?

[Aaron BNR32 GTS-T]

i have a turbosmart FPR and im installing it to just get the most out of the little rb20 injectors

with a tune, i can install and everything but wondering which fuel line to use....

obviously they have an inlet and outlet on the fuel rail but the inlet coming from the fuel pump

seems to go to the back of my fuel rail (firewall side) and then seems to come back threw

the front of the rail (radiator side) back to the fuel tank. it also has 2 little regulators

just wondering which hose to attach the regulator to?

i cant upload files cause im on a tafe computer so i hope people understand!

cheers

[T04GTR]

on the fuel rail, unbolt the stock reg. use the adapter you bought with the reg for the nissan fuel rail, that with the new efi hose you have. that goes the the side of the ts reg. the bottom of the reg goes the the tank.

[Aaron BNR32 GTS-T]

thanks but which reg? front side or back side? i have 2 on mine <BR> and the standard rail pressure at idle is around 36psi isnt it?

Edited September 14, 2011 by Aaron BNR32 GTS-T

[JonnoHR31]

the standard reg is at the front (cyl 1) of the rail. the other thing is a damper. so basically you want the reg in the return line.

standard base pressure is 43psi iirc

[Aaron BNR32 GTS-T]

ok so replace the reg at the front

and the base pressure is 43psi?

cheers for the help jonno

[JonnoHR31]

yer, base pressure is with 0 vacuum/boost so set it with the car off then check it with the car running and vacuum hose removed. set it to 43psi for now then when its on the dyno getting tuned you can raise it as required

[T04GTR]

yes... did it come with a fitting instruction sheet?

[Aaron BNR32 GTS-T]

na didnt come with instructions but just threw me off seeing 2 little regulator things lol

and is the base pressure 43psi? cause i read somewhere it was 36psi????

[blind_elk]

Base pressure is 3bar, so 42-43 psi.

[JonnoHR31]

36psi would be roughly what you'd see at idle with the vac line hooked up. BASE pressure (0 vacuum) is 43psi on all twin cam RB's, always set it with the vac line removed

[mattis96]

if you have a dual entry fuel rail can you install the fuel pressure gauge on the end where cylinder 1 will be? as the middle will be the returm and the back will be the feed, thanks and sorry for high jacking.

[JonnoHR31]

you can install the gauge anywhere before the fuel reg, so yes