Care of clarionmagna i am looking at doing a few extra mods shortly specifically cams and emanage and was wondering so far as getting a FPR goes whether or not i need to get one with a guage or not. Now with these mods i wish to set it up as user friendly as possible by setting and leaving it. is neccessary to see a guage????

personally, dont buy the malpassi unit. Get the magna adapter (got mine through philcom) and go to your local performance shop and grab a turbosmart FPR. They are the goods and aussie made. went to their factory the other night and was very impressed. its a pretty good unit

You dont need to get a rising rate remember. it does need a vacuum source at the top however.

You want less fuel pressure not more too, but only a dyno or a friendly member with a wideband o2 sensor can really adjust it safely to get power gains.

Without a pressure guage, you've got pretty much no chance of adjusting it properly. Rising rate is okay (means you don't need to replace it when you turn on the boost :badgrin: ), but basically it won't work as a rising rate regulator until boost pressure is produced.

To be honest though, if you're getting the emanage, I'd be very surprised if the FPR is nessecary. As discussed, my car has been tuned on 3 occasions with the emanage and 1.7:1 RRFPR fitted, and not once have they adjusted the FPR - leading me to understand that the emanage has more than enough functionality to control all the fuelling requirements on the engine.

To be honest though, if you're getting the emanage, I'd be very surprised if the FPR is nessecary. As discussed, my car has been tuned on 3 occasions with the emanage and 1.7:1 RRFPR fitted, and not once have they adjusted the FPR - leading me to understand that the emanage has more than enough functionality to control all the fuelling requirements on the engine.

Yeah, I think it was in your cars thread I really went in to detail about them. I will dig it up whe I get to work.

Here it is (http://aussiemagna.com/forums/showthread.php?t=38733&)

The thread covers a bit of ECU info but mainly fuel pressure.

In point forum (although its only 2 pages of thread)

You want less fuel pressure
You want leaner fuel mixtures
You NEED to get a WB02 sensor to adjust it to any reliable benifit
You do not want MORE fuel pressure
Rising rate increases fuel pressure at a given rate (1:1 is 1psi more fuel pressure per 1psi of boost)
Rising rate will not be used on an NA motor

Exactly. I never understand WHY people keep upgrading the FPR - if you can pull 235kw out of it (with a supercharger) why the heck would you replace it?

Stock is not always bad... mkaay.

yeah i'v heard that it gives you greater response, and when combined with an e-manage, gives more points of adjustment.

Also on the 3L motors (24v) it can help to eliminate the dreaded flat spot which can occur when you improve the breathing of the motor (intake/zorst).

I have one, and constantly play with the fuel pressure to try to improve economy/performance. In my opinion, these should only be fitted to 3L(i believe 3.5L injectors r bigger), or cars with more serious mods, like cams of forced induction.

later:cool:

Benny you have it all wrong. They are a crude way to lean out motors.

With an adjustable ECU then there is no reason other than to increase the injector scope a little higher.

Here it is (http://aussiemagna.com/forums/showthread.php?t=38733&)

The thread covers a bit of ECU info but mainly fuel pressure.

In point forum (although its only 2 pages of thread)

You want less fuel pressure
You want leaner fuel mixtures
You NEED to get a WB02 sensor to adjust it to any reliable benifit
You do not want MORE fuel pressure
Rising rate increases fuel pressure at a given rate (1:1 is 1psi more fuel pressure per 1psi of boost)
Rising rate will not be used on an NA motor

thanks TC, after reading this (and previous post)and making some calls to performance shops telling em what i wanna do i conclude that there is no need for an aftermarket FPR at all.

Thats no problem at all :) Glad to help.