Need more fuel...RRFPR?
Guys,
I have pretty much maxed out my 550 primaries and 1200 secondaries when I run 18 psi at the track. I am running a upgraded Denso fuel pump, stock fuel lines and the stock FPR.
Is there much to be gained from going to an aftermarket FPR or switching to larger fuel lines? Or should I bite the bullet and go with 850 primaries and/or 1600 secondaries?
I thought around 450 RWHP would be enough but it looks like I need to find fuel for another 50 hp so that I can keep those Skylines in my rearview mirror.
Cheuk
I have pretty much maxed out my 550 primaries and 1200 secondaries when I run 18 psi at the track. I am running a upgraded Denso fuel pump, stock fuel lines and the stock FPR.
Is there much to be gained from going to an aftermarket FPR or switching to larger fuel lines? Or should I bite the bullet and go with 850 primaries and/or 1600 secondaries?
I thought around 450 RWHP would be enough but it looks like I need to find fuel for another 50 hp so that I can keep those Skylines in my rearview mirror.
Cheuk
Get the adjustable fuel regulator before adding more pumps. An extra 10% fuel pressure might be enough to give you the fuel you need!
On my engine I previously had 550cc primaries and 1000cc secondaries and this gave me enough fuel for 23psi, 8000rpm and C16.
I have a Malpassi regulator.
On my engine I previously had 550cc primaries and 1000cc secondaries and this gave me enough fuel for 23psi, 8000rpm and C16.
I have a Malpassi regulator.



