As it says in the subject. I need help choosing the correct Facet Electronic Fuel Pump for an A Series 1310 to be fitted with a Stage 2 head, AC RS Cam (Power from 1200 - 6500 RPM), about 80-85 lb/ft? Stage One Kit.
Carb will be HIF44 with whatever needle comes in the Stage One kit.
Facet do several versions, SS501, SS502 etc all rated at varying PSI's, the problem is I don't know what PSI I need? To much and I'll flood the carb, too little and I'll suffer fuel starvation!
Any help would be appreciated,
P.S. Haven't been on this forum for ages, I used it extensively about 5 years ago and helped me to become a pretty good metal panel fabricator to restore my Mini (Thanks to TonyBMW's panel thread).
Hi, I think you are confusing capacity and pressure. Pumps produce flow, pressure comes from resistance to flow. SU carbs don't like more than 3 or 4 psi, that leaves a choice of 25 or 30 (US)gallons per hour. If you want more capacity you will need a fuel pressure regulator. Any of them is capable of supplying fuel to 2 HIF44 carbs on the RV8 at 150bhp as a comparison.