My apologies in advance if this is inappropriate for this forum



I want to let you guys know that there is now a new Fuel Pressure Regulator might be a direct bolt-on to the fuel rail for the FD and even the Gen2. I can't seem to get a hold of an OEM FPR to measure against. This unit already bolts to the Miata, and has a pretty good chance of bolting up to the FD. If you have an OEM fpr you could sell, or kind enough to measure, please let me know.





It has the following features:



*Direct Bolt-On to the factory of aftermarket fuel rail with no additional fuel connections

*Piston-based actuator without a diaphragm to fail

*Re-buildable with new seals

*Elimination of diaphragm reduces noise and pulsation in the fuel rail

*Will support over 1000+ HP

*Interchangeable bypass orifices to accomodate upgraded higher flow fuel pumps

*Adjustable static fuel pressure via a turn screw

*Dedicated Port for 1:1 ratio per pound of boost

*Boost-only chamber for a total of 12:1 ratio only if needed.

*Infinitely adjustable rising rate ratio from 1:1 to 12:1

*Retain fuel pressure in rail, so that you don't have to prime the fuel pump on the next startup

*Sealed chamber for direct injection of Nitrous to raise fuel pressure. Partioned from vacuum and fuel.



http://www.synapseengineering.com/Im..._packaging.jpg



More info can be found here : Synchronic FPR