Aftermarket Fuel Regulator for Gen2

How fuel regulator funtion ?
Fuel regulator is using vacuum to pull the diafragm which hard press a
spring and let fuel to flow back to tank . If the diafragm close (low
vacuum)that mean pressure will occur at fuel rail and force fuel to
inject thru nozzle (injector) .If diafragm open (high vacuum) mean low
pressure at fuel rail and small amount of fuel will be injected ( during
low revving and idling ) .

Stock fuel regulator only apply 2.5kg/cm2 and consider very low
pressure . As we know during high revving vacuum will act very low and
diafragm will open widely . Thus very low pressure at fuel rail and cause
lagging ( RPM climb very slow ).

Aftermarket fuel regulator is adjustable , not like stock one .
For NA will normal fuel piping , pressure always set at 0.3psi . More
than enough already .

Why must high pressure ? FC will increase ?
FC won't increase if you used to set pressure at optimum point . High
pressure will force fuel to inject and split into many small dot if
compare to stock one . If injected fuel can turn into many many small dot
will allow fast comburstion due to fuel dot very even in air . Fast
comburstion will keep your revving very fast . During high revving even
vacuum below low , aftermarket fuel regulator still can maintain
appropriate pressure and revving very consistent .

Gen 2 facing revving slow during gear 2 and gear 3 , fuel regulator
really can help to eliminate this problem .