Originally Posted by northiam
What would the minimum fuel pressure be under prolonged WOT? I have a standard mech pump and appears to be leaning out at full load.
NFI. But in another thread recently it was generally agreed that mechanical pumps can't keep up after 5000 rpm. Mine had leaned out to 14.4 A/F ratio by 6900.
Thats why an electric pump and 1/2" line with regulator are being installed tomorrow. Then its off to the dyno again shortly to crack that magical 250rwkw figure.