Originally Posted by zipper06
What do you have your barrel valve leakdown set at, I would suggest around 22 lbs. also i would run a highspeed bypass valve set around 70 lbs. The nozzles are big enough (IMO) The nozzles are flowed at 65 lbs.
I would think with a -1 pump you should be running a pill some where around .080 with that size motor.
5 gals of fuel in 10 mins. is definately excessive, also when idling i would suggest you close off the fuel shutoff 1/2 way. I and most of the people i know do this and drive up thru the staging lines with the fuel 1/2 shut off, this helps with the milking of the oil, and puts some heat in the motor before the run.
JMO
Zip.
Thanks Zip.
My barrel valve is at at 24% leakdown.
The reason I started with this configuration is that it gave the best HP and torque on the dyno. It was run on the dyno with no high speed bypass.
Ron's recommendations were much leaner and when I tried using them last season, the car keopt stalling on me after the burnout or at the top end when I release the accelerator pedal.
I tried pulling the fuel shut off out half way, but as the engine leaned the idle RPM climbed to over 2200 ( I probably pulled it out too far). I didn't have a lot of time to experiment with the proper setting to lean it out.
The fuel pressure seems excessively high to me. The more pressure, the more fuel through the orifice (pill) and also more to the main jets. The system in at 60 psi idling.