Can't lower fuel pressure below 64psi
08-23-2008, 06:17 AM
#1
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Can't lower fuel pressure below 64psi
B18c5 motor with a Jackson Racing Supercharger setup. Fuel mods are:
JRSC Fuel filter
255 lph Fuel pump
AEM Fuel pressure regulator
RC injectors
I tried to adjust the regulator down but the lowest the fuel pressure drops to is 64psi. Does anyone know why in the world I wouldn't be able to adjust it any further?? That is entirely too much presure for a honda motor.
JRSC Fuel filter
255 lph Fuel pump
AEM Fuel pressure regulator
RC injectors
I tried to adjust the regulator down but the lowest the fuel pressure drops to is 64psi. Does anyone know why in the world I wouldn't be able to adjust it any further?? That is entirely too much presure for a honda motor.
08-23-2008, 08:03 AM
#2
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Re: Can't lower fuel pressure below 64psi
What size hoses are you using? I haven't done the math, but a small hose in conjunction with a big pump could act a little like a regulator and bottleneck your fuel pressure. I may be wrong. Good luck.
08-23-2008, 09:36 AM
#3
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Re: Can't lower fuel pressure below 64psi
Thanks for the input. As far as I know it is the stock lines from the pump to the fuel rail, from there it is a 1/4 line to the regulator then the stock return line.... I have no idea what could be causing it...
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