Fuel Pressure Regulator Setting

[jtys]

helo everybody.....hmm...kinda agree wit V8_nutter dat ur FPR setting is 2 low, shud b higher. My wira 1.6A wit aerospeed adjustable FPR setting....idle at 49 psi WOT at 57 psi. And mine r all stock. Maybe u nid 2 consider ur output(exzos size) 2 match ur mod. Probably 2 much resistance there. Coz mine is 2" piping wit a center compressed box(hope I got dat rite) n a S flow muffler.....pretty happy wit it. My max rev so far is at 7k rpm..... :)

jus my 2 sen....

 

[drexchan]

mine,

Stock engine, 4-2-1 head, catcon, 1.5" mandrel bent piping, center muffler, 1.5" mandrel bent piping, end straight through muffler.

All taken from Wira SE (mine is normal wira sedan).. so consider stock also lar..

with 38/46 psi, top speed 170 km/h
with 32/40 psi, top speed 185 km/h

how to explain?

 

[jtys]

wah drexchan...terra la ur car....if i folow ur setting mine get very slugish....y ah?