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I’m running an O320 A2A on my S1. When I bought it, it had the PS5 BD. It had recently been overhauled with the orange seals but I never could get it to idle correctly. After calling Mikes fuel metering out of Tulsa we discovered that the PS5C is the only real solution to a pressure carb for the O320 engine.
The problem I’m having now is that pressure carb is designed to run 8 to 14 psi inlet pressure from the fuel pump. The Tempest on the plane now runs 15-18 psi. After researching all the different mechanical fuel pumps that say AC spruce sells they have a low, 4-8 psi/mid 15-18psi/and a high 21-32psi. So nothing in the range for my application.
After a little online research I see some other pump manufacturers, like AC, Thompson and Romec. At this point I thought I’d throw it out to see what pump setups were common with the O320/PS5C. I know it’s been a popular combination in the past. Mike’s tech said The carb would have a rich problem with anything over 15psi.
thanks for the input.
The problem I’m having now is that pressure carb is designed to run 8 to 14 psi inlet pressure from the fuel pump. The Tempest on the plane now runs 15-18 psi. After researching all the different mechanical fuel pumps that say AC spruce sells they have a low, 4-8 psi/mid 15-18psi/and a high 21-32psi. So nothing in the range for my application.
After a little online research I see some other pump manufacturers, like AC, Thompson and Romec. At this point I thought I’d throw it out to see what pump setups were common with the O320/PS5C. I know it’s been a popular combination in the past. Mike’s tech said The carb would have a rich problem with anything over 15psi.
thanks for the input.
