Is this how I install an FMU

[Doya]

Do I put a T fitting going to my fpr and run a line to the vacuum port on the fmu. Next do I take the stock return line off the fpr and put it on the outlet of the fmu. Then do I run a hose from the fpr to the inlet of the fmu. Let me know if this is the correct way.

[Chris28]

Lol, no.

The FMU totally replaces your FPR. In fact, the FMU is just a Rising Rate Fuel Pressure Regulator (RRFPR). Take off your stock FPR, put an isis/nismo fuel rail adapter on it, run the outlet of that adapter to the fuel inlet of your new FMU, the FMU's outlet goes to the fuel line that was previously attached to the stock FPR, and the vacuum line that was on the FPR goes to the vacuum nipple on the FMU. Easy as pie.

[Doya]

I feel stupid That is how my friend said he installed it on kis honda, I didn't think that it would be that much of a difference. Thanx BTW do you get your A/R straightened out?

[driftin_sr20det]

I'm pretty sure you leave the stock fpr in place to keep fuel pressure during vacuum situations, and the fmu only comes into play when boost is present. Atleast that's what Vortech says, its basically a second regulator in the line before the tank.

[480sx]

Yea, chris, your wrong man.

The FMU doesnt replace the FPR, it acts in conjuction with it. Only active when boost is applied. It retains the extra pressure that the FPR trys to bleed off in boost.

[Chris28]

Hot damn I'm sorry man! I thought it replaced the fpr. Sorry for the misinformation!

[Doya]

I still don't know how to install my fmu

[Chris28]

Well if it's in-line then the outlet from your stock fpr would go to the inlet on the fmu, then the outlet to your fuel return line. Just put a t-fitting on the fpr vacuum line and run it to the fmu as well.

[Razi]

This is basically how it works.Cut stock return line, and stick the halves into the FMU.Then find a vacuum source for the FMU, and Tee into it.

Hope it helps.

[virus77]

the OP had it right in the first place.... save your money and get some real fuel management though... my $.02

[Doya]

BTW, I was just wondering, do I have to use a 8:1 fmu because a friend gave me a brand new 12:1 vortech for free and I would hate to buy one when I already have one.

[virus77]

Depends on what turbo you are using to be honest. On a small turbo at 8 psi it might be fine, if you are running a big turbo at 8 psi its going to be pushing a lot more air at the same pressure. Try it if its free and if you are way to rich swap it out. I put a 8:1 on a customers S2000 and it was way to lean, the 12:1 worked good for 7 psi on that particular setup.

[Doya]

The turbo I'm going to be using isn't that big, it's a T04E Hybrid. Anyone know how fast these spool up. The specs are:

Compressor .49 A.R. Compressor .50 Trim 6 Blade Type T4 Compressor Wheel

Turbine Specs : Turbine .63 A.R. Thanx
Modified by 95ka24de_zenki at 8:32 PM 7/2/2009

[Carl H]

install it in the trash can.then save some money and buy some proper injectors and a tuned ecu.

[maryjane]

no incorrect info is being told to you, you leave your stock fpr, run the return line that exits your fpr to the bottom port on the fmu, then the port that exits the side of the fmu goes to the hose your fpr normally ran to,

[blueballa]

install it in the trash can.then save some money and buy some proper injectors and a tuned ecu.

[discosteak]

install it in the trash can.then save some money and buy some proper injectors and a tuned ecu.