What to expect with a new gasser
Looking at a new gas class A on the Ford F-53 Chassis and am wondering just what to expect. Would need a 5K toad which would put me up close to the GCWR of 30K. All this from a 320HP 460 Torque gas ...
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427435 wrote:SoCalDesertRider wrote:
30,000 lbs combined weight. That's alot for a gasser, even a tuned up V10.
I can imagine my International 4800 loaded/pulling at 30K gross, but with a V10 gas engine, producing half the torque of the 800+ lb-ft DT466E diesel that it has. Man, that would be sad cookies, on even the small hills...
I would look for a rig built on a medium duty truck chassis, with a big inline-6 diesel.
Good medium duty diesel engines to look for: Cummins ISC 8.3, International DT466E 7.6 and DT530E 8.7, CAT C7
Maybe it's time for another hp vs torque discussion.
Torque turns the wheels. Hp determines how fast they turn. :)
Indeed. Every motorhome has a device in it that increases torque at the expense of shaft speed, with several different settings. Generally they can also be set to increase the shaft speed while providing reduced torque. This device, of course, is the transmission.
Assuming the engines are producing similar amounts of power, the V10 would be running at twice the rpm if it is producing half the torque of the diesel engine. They'll surely sound different under the load (the V10 sounding rather more frenetic), but they'll propel one up a hill equally well assuming they have suitably matched drivetrains.
As the V10 is naturally aspirated and most diesels are turbocharged, the gas engine will lose noticeably more of its power at high altitudes.
