cdennyb
Full Access Member
nothin special to report
Well, the ride down south was uneventful. (just like we like it!) I loaded up a full bedroom set, cal king size mattress, box spring, frame, dresser, 2-night stands, and a chest of 4 drawers. Not much weight and tarped it good. (It was supposed to rain on and off and I figured I'd rather tarp it before it started raining.
The trailer was my old 30' flat bed, weighin in at around 1800# plus load. I used the brake on and off the whole trip and had no problems. The finished numbers are this:
loaded at 60 mph, cruising, back pressure (BP) was around .4 psi. With the brake applied fully it started at 11 psi and slowly dropped as the rpm dropped until at 40 MPH the convertor unlocked and the idle dropped to 800 rpm, If I engaged the brake and took it out of overdrive, forcing the convertor to stay locked as it slowed down, at 2800 rpm at 50 or so it was a high of 14 psi and dropped from there as the rpm dropped off. I hope these numbers are of some value to anyone who wondered.
The total area reduction is around 92.4%. I figured the pipe was flowing around 570-580 cfm before the blade closed and then of course the same flow was being forced through the equivelent of a .4 sq inch hole. That's some kinda reduction in flow area.
Well, the ride down south was uneventful. (just like we like it!) I loaded up a full bedroom set, cal king size mattress, box spring, frame, dresser, 2-night stands, and a chest of 4 drawers. Not much weight and tarped it good. (It was supposed to rain on and off and I figured I'd rather tarp it before it started raining.
The trailer was my old 30' flat bed, weighin in at around 1800# plus load. I used the brake on and off the whole trip and had no problems. The finished numbers are this:
loaded at 60 mph, cruising, back pressure (BP) was around .4 psi. With the brake applied fully it started at 11 psi and slowly dropped as the rpm dropped until at 40 MPH the convertor unlocked and the idle dropped to 800 rpm, If I engaged the brake and took it out of overdrive, forcing the convertor to stay locked as it slowed down, at 2800 rpm at 50 or so it was a high of 14 psi and dropped from there as the rpm dropped off. I hope these numbers are of some value to anyone who wondered.
The total area reduction is around 92.4%. I figured the pipe was flowing around 570-580 cfm before the blade closed and then of course the same flow was being forced through the equivelent of a .4 sq inch hole. That's some kinda reduction in flow area.