Page 1 of 2 12 LastLast
Results 1 to 10 of 19
  1. #1

    Default Weight to HP ratio??

    Is there an ideal Hp to weight ratio on CUT's?? you might have "not enough" or "too much" power.

    thanks

  2. #2
    Elite Member
    Join Date
    Sep 2003
    Posts
    4,144
    Location
    New Brunswick, Canada
    Tractor
    Kubota L5030 HSTC, MF 5455

    Default Re: Weight to HP ratio??

    What is the best brand of truck? You have to be more specific. What do you want to do? Mow? Loader work? discing? Snowblowing?

    My rule is you can't have too much hp or weight until you can't pay for it or can't get it to where you need it.
    Ken

  3. #3

    Default Re: Weight to HP ratio??

    Ill be doing loader work and snow plowing. No mowing.

  4. #4
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    48,575
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Weight to HP ratio??

    Just doing some quick math, I took the approx weights and engine HP for my tractors, and they turn out like this:

    1966 IH cub 14hp / 14xx lbs
    NH 1920 33hp/ 3500 lbs
    ford 8n 27hp / 2800 lbs
    YM 1700 ? 20hp/ 1800 lbs

    That is floating about 10 pounds per hp. I've noticed the japanese tractors tend to be a bit 'thinner' and the chinese /korean/indian tend to be 'thicker'.. guess it is due to the metalurgy of the castings.. needing bigger /thicker heavier castings to achieve the strength , etc.

    Soundguy

  5. #5

    Default Re: Weight to HP ratio??

    Soundguy, which of your tractors is the most usefull?? I noticed the NH 1920 had the most HP, but it weighed the most. Do you ever feel it was ever underpowered?

  6. #6
    Veteran Member
    Join Date
    Jun 2003
    Posts
    1,184
    Location
    Denton, TX
    Tractor
    BX 2200

    Default Re: Weight to HP ratio??

    Probably the most accurate way to derive this is by doing a calculation along the same line, and calculate the relationship of HP to #/in2 of tire contact.

  7. #7
    Super Member JerryG's Avatar
    Join Date
    Apr 2000
    Posts
    7,201
    Location
    Northwest Arkansas
    Tractor
    MF 1440-4 PowerShuttle

    Default Re: Weight to HP ratio??

    Agriculture industry standard is 90-120 lbs per PTO hp. This is to get the power to the ground.

  8. #8
    Super Member
    Join Date
    Apr 2000
    Posts
    6,225
    Location
    central New York
    Tractor
    all makes and models

    Default Re: Weight to HP ratio??

    In the ag world we are just learning the new gross horsepower ratings as we had always used PTO horsepower when we talked and the ratings are still using that at the 90 to 120lbs. For lawn work we look for less weight yet. For the work you are descibing more would be ideal but yet the rest of the time if there is any you would feel that it is fat.

  9. #9
    Platinum Member
    Join Date
    Jul 2003
    Posts
    523
    Location
    Cape Cod, MA
    Tractor
    JD 4410 eHydro & 430FEL w/ 4N1 bucket & pallet forks

    Default Re: Weight to HP ratio??

    When I was researching tractors (before buying my JD 4410) I did a number of plots. Here's one that plots Weight vs PTO HP for popular CUTs from kubota and John Deere.

    The data indicates the ratio for both manufacturers is running about 105 lbs per PTO HP.
    Attached Files Attached Files

  10. #10

    Default Re: Weight to HP ratio??

    Thanks for your chart. I am assuming that PTO hp is the closest to rear wheel hp??

    Looks like I might be upgrading to the L4330.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.