lazy ass efi conversion question

[gibbon]

going to EFI on the triumph. next up is the fuel system

I see there are arrangements which cap the return on the fuel rail, and the fuel pressure regulator is located way back at the outlet of the fuel pump and does everything from there. seems like a simple and easy way to setup a "return" system without meters of hard pipe. but conspicuously the OEM doesn't do it, so what's the story?

[Nominal]

Returnless is actually pretty common in OEM these days.

Some link I found from 2014.

e.g. AutoSpeed - Modifying Returnless Fuel Systems, Part 1

[tortron]

corvette combined FPR and filter was all the rage for engine swaps 5-10years ago. dont need a regualtor on the rail, or a return

[gibbon]

3 minutes ago, tortron said:

corvette combined FPR and filter was all the rage for engine swaps 5-10years ago. dont need a regualtor on the rail, or a return

yeah I think that's the thingy I'm looking at, reasonably priced too. Are there any downsides for a non bleeding edge application? 

[westy]

Needs a valve on the rail to bleed?

[bigfoot]

I have seen it done with a normal aftermarket reg with a tee going to the rail between the pump and the reg, it worked for the burnout the car did. Don't know if they kept it as a permanent solution

[kws]

Certain BMW E46 fuel filters have a reg built into them and return from the filter

https://skunkworks.co.nz/products/e46-m54-fuel-filter

[gibbon]

looks like it's a somewhat common thing now, I make no apologies for being stuck in 1993. but yes looks like I'll go with a nonreturn system to save the extra plumbing

[GARDRB]

https://www.sq-engineering.com/wp-content/uploads/2022/12/Info-Beams-fuel-system-Phil-Bradshore.pdf

[Nominal]

You think they could get his name right - Phil Bradshaw!

[Tumeke]

Not sure if you have seen this, and it's a bit old tech now, but might have some useful stuff still.

https://sites.google.com/a/mintylamb.co.uk/triumph2000efi/