18 replies to this topic

[Chris11]

Hydros suck

[tater195]

Well my options right now are a 45mph straight axle, weak gear tx and hydros. Out of what I have to work with, I think it the best for a strong puller that wont break

[Dieselcubmike]

Not quite sure where the speed is coming from? But im sure that 45mph might not be possible. Cannot for-see a hydro running that fast before it gets thrashed. I dont even think My diesel with a little bit of work done with big gears and pretty hefty sized over driver are turning the wheels that fast. Now maybe, just maybe, a pro mod twin or a pro stock diesel could be over 50mph wheel speed but for a tiny stock hydro even with pulley swaps wont be able to match that. If you have a gear drive transmission your better off using that. That hydro will suck up all your horsepower. Im sure chris can chime in with this as well as some of the other pullers.

[tater195]

I didnt say the hydro would spin the tires that fast. 14" tires, 3" on the engine, 10" on a kart axle at 3600 rpm comes out to about 45 mph, assuming you have the hp to hit the top limit.
The hydro at 3600 rpm top speed will be around 4 with 14" tires. Cant remember where I got it. I think it came out of roper. 3/4" keyed axles. It probably wont be over 150#. 4.5" wide ags. 400# or less with a heavy operator. Dont know how much it would pull on a dead sled. I think it would pull 600+on a transfer