Page 9 of 13
Re: Post your winter tractor setups
Posted: Fri Jan 14, 2022 3:00 pm
by Eugen
It's an uninformed guess on my part, but I think 32.4 ft-lb is not correct. Could also be a case of sour grapes on my part
Re: Post your winter tractor setups
Posted: Fri Jan 14, 2022 3:09 pm
by Eugen
oh well, from the horse's mouth, i.e. the JD manual for 316,318,320
I suspect the 18 and 20 HP Onan would have the same torque but at higher RPM.
The formula relating these quantities is:
HP = Torque * RPM / 5252
Therefore
RPM = HP * 5252 / Torque
So the
B43E 31.5 ft-lb at 16 * 5252 / 31.5 = 2668 RPM
The B43G at 3001 RPM.
And the
B48G gets 31.8 ft-lb at 3303 RPM !!!
Can you imagine having that torque at 3303 RPM, translated to the auger?!!!
Oh man, and I really wanted to be happy with just the 14HP Kohler!!!!!
P.S. Take this with a grain of salt though. Max torque is (almost) never at max HP. Still, the fact that these increasingly larger HP engines have almost the same max torque I think it's an indication that it happens at a higher RPM.
Re: Post your winter tractor setups
Posted: Fri Jan 14, 2022 3:40 pm
by Eugen
Re: Post your winter tractor setups
Posted: Fri Jan 14, 2022 3:49 pm
by Gordy
Propane57 wrote: ↑Fri Jan 14, 2022 2:51 pm
Guess I was wrong on the B43E Onan 16 hp torque,
Noel
We are all at the mercy of what someone else wrote or posted on the web
Just hope my sources are correct
Gordy
Re: Post your winter tractor setups
Posted: Fri Jan 14, 2022 3:55 pm
by Gordy
Eugen wrote: ↑Fri Jan 14, 2022 3:40 pm
P216Gpowercurves1.jpeg
hm...
So by that chart it looks like the different #'s we are seeing are for maximum (intermittent use) and continuous use.
Gordy
Re: Post your winter tractor setups
Posted: Fri Jan 14, 2022 4:26 pm
by propane1
So Eugen, you have a good working 14 engine, so another option is to change your gearing on the thrower. It works. That's what you do in muscle cars to get a better time at the drag strip. Change the differential gears.
Noel
Re: Post your winter tractor setups
Posted: Fri Jan 14, 2022 4:30 pm
by Eugen
Eugen wrote: ↑Fri Jan 14, 2022 3:09 pm
The formula relating these quantities is:
HP = Torque * RPM / 5252
Therefore
RPM = HP * 5252 / Torque
So the
B43E 31.5 ft-lb at 16 * 5252 / 31.5 = 2668 RPM
The B43G at 3001 RPM.
And the
B48G gets 31.8 ft-lb at 3303 RPM !!!
Can you imagine having that torque at 3303 RPM, translated to the auger?!!!
Just ignore this. Makes no sense to assume max HP.
Re: Post your winter tractor setups
Posted: Wed Jan 26, 2022 11:47 am
by Doublet
Very Nice tractor and set-up. Thanks for posting!
Terry
Re: Post your winter tractor setups
Posted: Wed Jan 26, 2022 11:53 am
by Doublet
Timj wrote: ↑Sun Jan 09, 2022 12:22 am
Snow duty at home is my 4118 with AHSB48 hydraulic caster.
KIMG0294.JPG
At the cabin it's the NH 1510 tractor loader with Red Devil 5' pto blower
KIMG0144.JPG
At the shop it's a 555 Ford/NH tractor loader backhoe.
And when all else fails a scoop shovel.
I have a 4118 that I am always having problems with the wiring and the safety switches.
Terry
Re: Post your winter tractor setups
Posted: Wed Jan 26, 2022 12:25 pm
by Timj
Doublet wrote: ↑Wed Jan 26, 2022 11:53 am
Timj wrote: ↑Sun Jan 09, 2022 12:22 am
Snow duty at home is my 4118 with AHSB48 hydraulic caster.
KIMG0294.JPG
At the cabin it's the NH 1510 tractor loader with Red Devil 5' pto blower
KIMG0144.JPG
At the shop it's a 555 Ford/NH tractor loader backhoe.
And when all else fails a scoop shovel.
I have a 4118 that I am always having problems with the wiring and the safety switches.
Terry
I have just started to have issues with the neutral safety switch, have to wiggle the travel lever to get it to start sometimes. Not looking forward to what is to come. But I guess with 1300 hours....
Tim