D-Jet Fuel Pressure Regulator, How high should it go? Options

[GregAmy]

What should be the maximum capability of the stock D-Jet pressure regulator? Mine only goes to 36.

If that's normal, is there another similar-format regulator that can go up to around 45psi?

Background: Microsquirt project. Was hoping to use the stock regulator, but now need something that I can easily mount in the same location, if possible. Injectors I'm using are rated at 43.5psi.

Discuss!

[GregAmy]

Since we're going deeper into the design...

And, by the way, before we get too deep into this I wanted to recognize the assistance I've received from EricP, @Montreal914 . He has his own build going on but we've been swapping info back and forth. Thanks, Eric!

My design basis an over-riding "prime directive": use as many stock components as reasonably possible, and try to design it such that anyone can install it. I also have a design cost of <$1500 in parts. Unless someone wants to take this design and sell it as a kit for the community (and if you do, please contact me), I plan to do a full write-up of parts build lists, sources, design, and instructions.

Toward this, my goal is to use the "stock" fuel pump and pressure regulator, if at all possible.

I got the pump I'm using from Chris Foley at Tangerine; it is a 2-port replacement for the factory 3-port. He thinks it's the Bosch 69133. I've yet to find any specs on that pump but I havne't looked hard; I was working under the impression that the limiting factor here was the regulator. Maybe that was a flawed ASSumption.

More later; time to go to work to pay for all this. - GA


EDIT: Current plan is to tune the engine to 35psi, with "255" as the flow number for the injectors.