48IDA: Fuel pressure

walt347 · #1 (**permalink**) 04-10-2003, 12:57 PM

What would be the best fuel pressure for a 48IDA system ?

I assume 3.0 to 3.5 psi. Is this correct ?

Your advice is appreciated.

Best regards,
Walter

427Aggie · #2 (**permalink**) 04-10-2003, 02:37 PM

anything above 3 is a risk...I actually run 2psi on my system....above 3 and you can blow out the seals.

Matt

zimmy · #3 (**permalink**) 04-10-2003, 09:55 PM

I run 2.5 on mine. Be sure to run a pressure return line to keep the carbs from leaking when you turn them off hot. Do a search on webers to see the past threads that talk about this phenomenon and its avoidance.

walt347 · #4 (**permalink**) 04-25-2003, 10:50 AM

Matt, zimmy & CalMetal

Thanks for your advice. I ordered a fuel pressure regulator (from Pierce - already got it) and I installed a fuel return line in order to be on the safe side.

Walter