Rising Rate Fuel Pressure Regulator, Has anybody used one before?? Options

[jeffrosie]

When turbo'ing my 3SFE engine, what if I use a 2:1 rising rate fuel pressure regulator to help correct fueling for the increased air flow.
With a 2:1 RRFPR, the inline fuel pressure will increase by twice as much as std as boost increases and the regulator sees boost pressure. So, effectively, the 32psi odd will increase to 64 psi odd at 1 bar as the increase is linear.

[boosted185]

If you have big enough injectors to support the new power gains, along with a higher rate fuel pump, a FPR is not necessary. And just out of personal experience, RRFPRs are J-U-N-K with a capital "J"!!!!!!! I've seen rocks that have more potential at being useful than one of those things. If you want to be able to control your fuel pressure, bite the bullet and but an actual adjustable fuel pressure regulator. But like I said, with the correct injectors, and a better fuel pump, an FPR is not necessary.