single feed Jenveys??

[v8ian]

I am the proud owner of a set of Direct to head 45mm Jenveys for my 20XE, what has me a touch confused is the lack of return capability, as the end of the fuel rail is blanked off from new, how do I plumb it up,? are there pressure regulators with return feeds built in?

[Graham]

I am the proud owner of a set of Direct to head 45mm Jenveys for my 20XE, what has me a touch confused is the lack of return capability, as the end of the fuel rail is blanked off from new, how do I plumb it up,? are there pressure regulators with return feeds built in?

its called dead heading, a lot of car manufacturers do it now, they still have the regulator its just usually immediately after the pump, basically you tee the regulator into the fuel line from the pump to the rail.
up sides, less plumbing to and from the engine. Downside it takes longer to purge the system of air and if you have high under bonnet temperatures you are more likely to run into issue with fuel vaporisation

[katana]

its called dead heading, a lot of car manufacturers do it now, they still have the regulator its just usually immediately after the pump, basically you tee the regulator into the fuel line from the pump to the rail.
up sides, less plumbing to and from the engine. Downside it takes longer to purge the system of air and if you have high under bonnet temperatures you are more likely to run into issue with fuel vaporisation

I'm not a fan of 'deadheading' - I know a lot of OEM's do it, but these have relatively smooth pressure requirements ie. no abrupt changes, whereas performance orientated systems can have significant flow changes causing pressure fluctuations before the 'remote' regulator catches up. I know its a personal thing but i'd always try to get a return into the system with reg. placed on end of rail before return.

Re : the OP issue - most Jenvey rails are drilled either end to allow flow (and a return) from either end to suit installation. What is present on the blank end?

[Graham]

. I know its a personal thing but i'd always try to get a return into the system with reg. placed on end of rail before return.

me too, i always run a return from the rail

[v8ian]

I cant upload a JPG at the moment, but looking at the end of the fuel rail, its got an ally bung in it, and its been staked too, with a 3 sided stake, I would say done properly, not a home made item,

[Graham]

I cant upload a JPG at the moment, but looking at the end of the fuel rail, its got an ally bung in it, and its been staked too, with a 3 sided stake, I would say done properly, not a home made item,

jenvey may of even modified or supplied it like that, new fuel rail isnt expensive to buy........