Fuel Pressure Regulator

[swany]

Can anyone help please found out today why my 325 m tech was running like a bag of poo, injector seals were leaking so replaced them, tried to set the emissions and its runnin stupidly lean, i've been told the pressure reg is fooked, is it a good idea to uprate seein as i gotta buy one or stay standard? love to hear everyones opinions thanks.

[Ziggy]

Standard. Uprated ones won't have any benefits unless you want to set your car on fire... Ask E30Adam.

[Kos]

they work on modded engine where extra fuel is required, what happened to adams car??

[Ziggy]

they work on modded engine where extra fuel is required, what happened to adams car??

It caught on fire. Twice! Won't mention the brand name as I'm not 100% sure on it, but it wasn't a cheap knockoff. Others are probably better though...

Like you said, they're only of benefit on a seriously modified engine anyway (as in more than Adam's 2.8 ), so standard's the way to go here (in my opinion)...

[Kos]

i always used FSE, must have been an electrical prob somewhere??
hey ho, shit hapens!!

[Dan318-is]

FSE is pointless as it does not tell the ECU how much fuel is being injected, it just injects extra anyway; this is what i have heard

[Kos]

on a standard engine yes, on my M3 it was needed with the extra injectors. it also heped out when using nitrous and going willy with the jetting,

it just ups the fuel presure a little, it will help if you have a high flow airfilter and running a cam.

[Dan318-is]

interesting

so basically the moral is: unless your engine is of the hook dont bother?

[Kos]

yep

[Turbo-Brown]

so basically the moral is: unless your engine is of the hook dont bother?

Even then, unless you're unbelievably lucky and the added fuel exactly matches the requirements of your mods, it's a stab in the dark.

Leave it standard, or if you really want bore wash, take the standard reg off and give it a squeeze in a vice. Will up the fuel pressure nicely and costs you nothing (except a re-bore, new rings and pistons etc.)

[swany]

thanks for all the advice, i think i'll stick with buyin a standard one then, i've got some mods such as stage 1 head, stainless system, panel filter, but i don't think theres enough call for that regulator,