Kubota Gross HP vs Net

[Agrantina]

With as many different brands as there are for CUTs under 45hp I figured most of the ratings where for competition between brands.. Yes it is amazing what weight will do in the right places on a tractor. The 3240 I have pulls a disc way better than the 7 HP more older tractor I was use to.. 4wd and about 1200lbs makes WAY more difference than 2wd and lesser weight..... I do like the draw bar HP rating- but as Phil stated most CUT use PTO HP more than draw bar power...Yes I am getting a tiller and may retire that old 7ft disc!

AndyG

 

[PHILIP8N]

I'm kind of surprised that they don't give torque numbers.

Torque can be calculated from hp. TQ = (HP x 5252) / RPM.

Philip

 

[PHILIP8N]

I'm kind of surprised that they don't give torque numbers.

Here is the complete curve for your L4240. Philip.

 

[Agrantina]

Phil- where did you get that? I have the babyG L3240... In my hot rodding days HP was speed and Torq was calc in how many sets of rear tires you went thru :laughing:

AndyG

 

[PHILIP8N]

where did you get that? I have the babyG L3240:
AndyG

Here is the curve for the L3240. You may be able to find online, but we use alot of Kubota, Deere, Cummins, and Cat engines here where I work, so I had the referance data on hand. Philip.

 

[Samandothers]

Phil
THanks for info on HP for L4240 also the HP education.

 

[Haywire]

I'm kind of surprised that they don't give torque numbers.

Yea, all the small lawnmower type engines are rated in torque instead of HP now. I heard that was mandated due to mfgs fluffing their numbers. When I was a kid, a 22" cut 3.5 hp mower would really lay down the grass. The last push mower I bought claimed 5hp I think and it was down right disappointing.

Ian

 

[bigbull338]

your gross engine hp is based on 2500rpms.the pto hp is usually 5 to 10hp under the engine hp.

 

[PHILIP8N]

your gross engine hp is based on 2500rpms.the pto hp is usually 5 to 10hp under the engine hp.

This is an extremely vauge statement and would not consider it standard for any comparisons. Are you talking about one specific model or for every tractor in general? Philip.

 

[kuboman]

Gross engine hp is basically meaningless. As a rule pto hp is about 15% less than gross power and draw bar hp is 15% less than pto whether you are talking 20 hp or 200hp.