Hi I'm working on building 2 tractors one drag tractor and one pulling tractor has anyone ever built one of these before I have a Honda 20 horse v twin that I plan on twin turboing with two carbs using smart car turbos very small turbos only using 4 lbs boost each for the drag mower and for the pulling tractor I have a 20 hp b&s ic opposed twin that runs on alky right now the question I have is what would the best trans be for both of the tractors money is not an option as I already have two grand into the Honda and about fifteen hundred into the b&s twin I plan on building tube frames for both and using go kart steering so it will be safer at higher speeds also what size pulleys should I use and has anyone ever used dual or step pulleys before
#2
reynoldston
Just seem to me you would be better off with a CVT or snowmobile style clutch for the raceing and for pulling just a pully style clutch. Now what we have found on our pulling tractors is a havey flywheel work better.
Just seem to me you would be better off with a CVT or snowmobile style clutch for the raceing and for pulling just a pully style clutch. Now what we have found on our pulling tractors is a havey flywheel work better.
For the racing tractor I planned on running a chain type with torq converter since it is a horizontal shaft motor would that still work ? And for the pulling tractor I have the lightest fly wheel made should I replace it with a stock type it runs at 6500 rpm now all internals are aluminum the pistons are also .30 oversized
#4
reynoldston
racing we are not into but pulling yes. Our tractors are full size farm tractors and one of our first place pullers has a 200 lb. flywheel. You want a heavy flywheel for pulling to keep your engine momentum up not like racing as a light flywheel for faster RPMs. Our pistons and rods are custom made and run a 12 to 1 compression.
