The multi engined tractors are badass machines alot of horsepower working the sled down the track, Me,My Brother and Bestfriends enjoy watching the super mods at our local county fair 💯
I always thought they used torque converters because they didn't use a clutch pedal when starting off. How many rpm does the tractor need to start at? How do they adjust this centrifugal clutch without a pedal?
son of a gun! centrifugal clutches. I have wondered for awhile how that was done. must be some serious money in that gearbox, driveshaft, and rear. whats the combined peak torque of the them 3 monsters. couple thousand foot pounds?
I wonder if tq could be spread over a wider rpm by having slightly different gear ratio for each engine... So that as 1 engine hits peak power the next is say a thousand rpm behind rpm behind, then the third. This way instead of having one crazy peak number of the combined engines you get more of a constant pull. Probably a job for a clockmaker.
That would only work if all 3 or 4 or 5 engines were guaranteed to work. Often, one in the process breaks a blower belt or something along that line. If that happened to a middle engine, the results would be catastrophic.
@@badgear I thought that was the show!!! ;-) I still go back watch that one tractor heave it's engine onto the track for fun. Okay so how about a shutdown with sudden loss of power. One way sprag clutches, to save engines.
A couple of guys have tried something like that. One way Joe Eder triee was using two Chevrolets and two Hemis. On produces more torque and the other more HP. But nowadays it has become more of a HP game to get yoyr speed up. Plus the mods are having a harder time getting the power tonthe ground than ever before.
they're loud and violent and powerful. i love them. A 100HP traction engine can pull more, i dont know if they have a sled that will stop one yet but they should soon
A 100hp traction engine will pull more??? The sleds will stop articulating tractors no problem. On a good track, they have trouble stopping these. They can't stop them on a shorter indoor track.
@@badgear ua-cam.com/video/FuJbfrcFKyU/v-deo.html.... 150 case pulling 44 Bottom John Deere Plow. If the tractor shown here can pull 44 i'll eat my hat, on video, for you, no hesitation, you can even choose the hat.
Oh I got you. Pulling power is a factor of weight. That big Case weights what 40,000 pounds?? These weigh 7200 pounds. IF you could build one big enough and mount enough motors to weigh 40,000 pounds, it could pull a 800 bottom plow. But then you run into Price's law & it would start eating engines. A 7200 pound, 150 horsepower Case, John Deere or whatever could barely budge the sled these tractors pull on a short track.
That’s some crazy shit. An older technique is fixing engines inline where the front engine has a sprocket on the flywheel (or on its hole pattern maybe without the flywheel) and the rear engine has a sprocket on the crank pulley. Then you fix a beefy double row chain onto both of them, so they’re rigidly fixed together.
The multi engined tractors are badass machines alot of horsepower working the sled down the track, Me,My Brother and Bestfriends enjoy watching the super mods at our local county fair 💯
Huh never knew that. I was always curious about how that worked. Thanks
I always thought they used torque converters because they didn't use a clutch pedal when starting off. How many rpm does the tractor need to start at? How do they adjust this centrifugal clutch without a pedal?
It must feel amazing to drive one of these
Guess my hydrostatic, multi-pump, multi-stage hydraulic motor theory is out. Getting the driveline angle dead on must be total hell.
Who makes that gearbox?
son of a gun! centrifugal clutches. I have wondered for awhile how that was done. must be some serious money in that gearbox, driveshaft, and rear. whats the combined peak torque of the them 3 monsters. couple thousand foot pounds?
They are high rev engines so probably 4000 lbft.
I wonder if tq could be spread over a wider rpm by having slightly different gear ratio for each engine... So that as 1 engine hits peak power the next is say a thousand rpm behind rpm behind, then the third. This way instead of having one crazy peak number of the combined engines you get more of a constant pull. Probably a job for a clockmaker.
That would only work if all 3 or 4 or 5 engines were guaranteed to work. Often, one in the process breaks a blower belt or something along that line. If that happened to a middle engine, the results would be catastrophic.
@@badgear I thought that was the show!!! ;-) I still go back watch that one tractor heave it's engine onto the track for fun. Okay so how about a shutdown with sudden loss of power. One way sprag clutches, to save engines.
A couple of guys have tried something like that. One way Joe Eder triee was using two Chevrolets and two Hemis. On produces more torque and the other more HP. But nowadays it has become more of a HP game to get yoyr speed up. Plus the mods are having a harder time getting the power tonthe ground than ever before.
Oh yeah. That thing definitely has a few hemi's
How are jet engines connected to a driveshaft?
I will do a video on it.
Must be some amazing payouts at these events, cant be typical drag racing purses by no means😂
Actually they are not very good at all. The major companies in the motorsports business have abandoned motorsports.
@@badgear so pretty much like drag racing then.
Now how can I put this is a road car
they're loud and violent and powerful. i love them. A 100HP traction engine can pull more, i dont know if they have a sled that will stop one yet but they should soon
A 100hp traction engine will pull more??? The sleds will stop articulating tractors no problem. On a good track, they have trouble stopping these. They can't stop them on a shorter indoor track.
@@badgear Yep, a 150 Case (150HP) has the record
Has what record??
@@badgear ua-cam.com/video/FuJbfrcFKyU/v-deo.html.... 150 case pulling 44 Bottom John Deere Plow. If the tractor shown here can pull 44 i'll eat my hat, on video, for you, no hesitation, you can even choose the hat.
Oh I got you. Pulling power is a factor of weight. That big Case weights what 40,000 pounds?? These weigh 7200 pounds. IF you could build one big enough and mount enough motors to weigh 40,000 pounds, it could pull a 800 bottom plow. But then you run into Price's law & it would start eating engines. A 7200 pound, 150 horsepower Case, John Deere or whatever could barely budge the sled these tractors pull on a short track.
That’s some crazy shit. An older technique is fixing engines inline where the front engine has a sprocket on the flywheel (or on its hole pattern maybe without the flywheel) and the rear engine has a sprocket on the crank pulley. Then you fix a beefy double row chain onto both of them, so they’re rigidly fixed together.
Too much horsepower now for that setup.