Aeromotive fpr tuning - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Sr20KoukiS14 · 09-02-2010, 11:23 PM

I have an s13 sr20det with the j4 ecu with a stock tune. It has a 300zx maf, its been bored .20 over, stock 370 injectors(which i have read that they are more comparable to a 400cc size and that the tt 300zx injectors are actually smaller because of the way the flow), walbro fuel pump, aeromotive fpr, stock manifolds, fmic, an innovate RC-1 wideband, and stock t25. What I want to know is, can I tune my engine by raising the fuel pressure manually at the fpr. I know that a higher fuel pressure can sometimes hurt stock injectors, but i just want to tune with out touching the ecu. Old school tuning more or less. How much boost can I run with this kind of setup???

09-02-2010, 11:23 PM	#1
Sr20KoukiS14 Leaky Injector Join Date: Feb 2010 Location: Missouri Age: 34 Posts: 141 Trader Rating: (0) Feedback Score: 0 reviews	Aeromotive fpr tuning I have an s13 sr20det with the j4 ecu with a stock tune. It has a 300zx maf, its been bored .20 over, stock 370 injectors(which i have read that they are more comparable to a 400cc size and that the tt 300zx injectors are actually smaller because of the way the flow), walbro fuel pump, aeromotive fpr, stock manifolds, fmic, an innovate RC-1 wideband, and stock t25. What I want to know is, can I tune my engine by raising the fuel pressure manually at the fpr. I know that a higher fuel pressure can sometimes hurt stock injectors, but i just want to tune with out touching the ecu. Old school tuning more or less. How much boost can I run with this kind of setup???