What's this?

[318ti_Portugal]

Hi...

I saw this at TMS site.

http://www.turnermotorsport.com/image/engine/engine_e36_fpr_lg.jpg

It's a fuel pressure regulator and it says it can be used on the 318ti.
What would be the use of this? Would it boost the hp?

Regards!

[DustenT]

Hi...
It's a fuel pressure regulator and it says it can be used on the 318ti.
What would be the use of this? Would it boost the hp?

Regards!

Simple answer: No.

It increases your fuel pressure.

[Bluebimma]

http://z31.com/repairs/fpr.shtml

I think you only use an FPR for better tuning...I.E. Forced induction systems for leaning and richening.

[DustenT]

http://z31.com/repairs/fpr.shtml

I think you only use an FPR for better tuning...I.E. Forced induction systems for leaning and richening.

True, but you would want a Rising Rate Fuel Pressure Regulator, not one like this.

[Bluebimma]

True, but you would want a Rising Rate Fuel Pressure Regulator, not one like this.

Thanks, i stand corrected.

[pdxmotorhead]

The picture is of a manifold pressure referenced regulator.
It would help by allowing you to tune fuel pressure to optimum for your engine. As opposed to taking the stock one with its settings.

You wouldn't likely see much more power but it would help for instance on a built motor with new cams that may need tweeking to get the right pressure at a given RPM, sometimes new cams effect manifold vacume in a manner that causes the stock unit to go lean or rich..

It should work with Forced induction but you'd have to check its specs. It needs to adjust from vacume through positive pressure, not all of them do, thats what would make it a true rising rate...