6 cylinder puller-1
New User
Is a 400 diesel flywheel heaver than a 400 gas flywheel???
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gtx1967jewison
Well-known Member
I don't know, but heavy flywheels take more energy to turn so that leaves less to rotate your wheels in a pull.
Lovespullin
Member
The momentum from a heavy flywheel is something some people desire
Anonymous-0
Well-known Member
rule of thumb if you want to turn high rpms you run a light flywheel if you more torque you run a heavy flywheel
north puller
Member
It seems like the idea of stored energy in a heavy flywheel would be a good thing, but if you start putting the idea into real world situations, it just doesn't work.
No matter how you slice it, the more mass you are trying to spin, the more energy it takes. Therefore, the lighter the rotating assembly, the less energy it takes to spin it, and more energy available to go to the tires.
What about a test? Drive your tractor down the track with sled in tow, and hit the kill switch. How far does the stored energy of the rotating assembly take you? What if you did the same test with a new flywheel that was 100 lb heavier? Would you go any further?
Is there enough stored energy to take you through the last 20 seconds/30 feet of the hard pull?
Unless you plan on installing a 5000 lb flywheel, and gearing it up to 5000 rpm, you will never get enough stored energy to make a lick of difference.
No matter how you slice it, the more mass you are trying to spin, the more energy it takes. Therefore, the lighter the rotating assembly, the less energy it takes to spin it, and more energy available to go to the tires.
What about a test? Drive your tractor down the track with sled in tow, and hit the kill switch. How far does the stored energy of the rotating assembly take you? What if you did the same test with a new flywheel that was 100 lb heavier? Would you go any further?
Is there enough stored energy to take you through the last 20 seconds/30 feet of the hard pull?
Unless you plan on installing a 5000 lb flywheel, and gearing it up to 5000 rpm, you will never get enough stored energy to make a lick of difference.
6 cylinder puller-1
New User
400 farmall
gtx1967jewison
Well-known Member
Yep maybe your thumb- certainly not mine lol you can have a 1000# flywheel & won't gain an inch in a pull.
gtx1967jewison
Well-known Member
The 3" you think you've gained at the end of the pull is burned up & then some at the first 100' when the hp is going to keeping that flywheel spinning rather than the tires. You will have a smoother idle & possibly loner lasting engine but certainly not more power to the wheels, not even in that last 5' when your headed rapidly toward zero rpm. But to each his own.
The Dukester
Well-known Member
I was taught that flywheels store horsepower being a rotating mass, but they make no horsepower and may in fact lose a minuscule amount as their weight increases because of increased friction losses.
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