How To Install Aftermarket Fuel Rail

[darrinspencer]

I have a Neo rb25 and have just fitted a greddy style inlet plenum and have a new set of 650cc siemens top mount injectors. The injectors came with a new HKS style fuel rail.

To use this rail I will have to fit a new remote fuel regulator.

The question I have is, the Neo rail appears to have 2 regulators on it. Is this correct?

They both have a vacuum line from the old inlet plenum.

Do I need to have 2?

Can I just run a line from the fuel filter to the end of the new rail and then run a return line form the rail, thru the regulator and back to the tank?

[darrinspencer]

????

[JonnoHR31]

1 reg is fine, tomei make a good inline reg

[PM-R33]

Can't exactly remember what a Neo fuel rail looks like but the setup should go as follows:

-Fuel filter

-Fuel line from fuel filter to inlet of fuel rail

-Fuel line from outlet of fuel rail to your aftermarket fuel pressure regulator

-Fuel line from aftermarket fuel pressure regulator to secondary factory fuel pressure regulator (Not sure what this is actually called, its the regulator that drops the fuel pressure back down)

That's basically it I believe.

Edited May 11, 2010 by PM-R33

[JonnoHR31]

the best way for it to drop pressure is to just let the fuel flow back to the tank as it normally would anyway. if there is such a thing factory you wont need it with aftermarket stuff

[STATUS]

neo runs twin regs and a damper.

[PM-R33]

Is that the thing im talking about Trent, a damper?

Edited May 11, 2010 by PM-R33

[darrinspencer]

neo runs twin regs and a damper.

So Trent, can I run just one reg then between the rail and the damper??

[JonnoHR31]

yes