Driver/Cockpit adjustable fuel pressure regulator

[mike Stob]

I have been looking for a fuel pressure regulator for EFI that is remotely adjustable by the driver in the cockpit. Does one exist?
Thanks

[Racer71]

I’ve never seen one although I wonder if you could use a shock adjuster cable like we use on our dirt midgets to do it.

[BOOT]

I suppose you could run two diff regs and use electric valves to changeover, shut one off and turn the other on but that sounds like a lot of extra plumbing and so on.

[Dave Koehler]

Someone has to ask. Why?

[MadBill]

<EDIT: Written before seeing any of the above replies.>

IF this is for a race car (or you don't mind punching a hole in the floor of your street wheels) I think you could adapt a standard regulator. Per these examples: https://www.google.com/search?q=efi+adj ... e&ie=UTF-8
the regulator could be mounted convenient to hand, the lock nut replaced by a knurled knob and a short T handled Allen wrench epoxied into the adjuster shaft.

For safety you would want to mount it underfloor, perhaps in the trans tunnel, and sealed to it to reduce the chance of fuel entry in case of leakage. There would however still be the possibility of leakage around the adjuster shaft into the passenger compartment, so another approach would be to use a longer T wrench( or knob pressed onto the Allen hex) with some sort of locking mechanism working on it, leaving the entire regulator well below the floor.

Yet one more approach might be the use of a brake bias adjuster mechanism such as: https://www.google.com/search?q=cable-o ... e&ie=UTF-8 to turn the adjuster. Their knobs can usually be locked, preventing fuel pressure drift.

BTW, for safety, an isolated pressure gauge should always be used. I've been pi**ed on by a leaky mechanical gauge and it's not a pleasant experience, even without any subsequent 'rapid thermal degradation'.