First thing we have to do here is tell you that the audio in the video is kinda of sucky. That’s not a deal breaker for us though because it is good enough to hear this single cylinder engine punishing the atmosphere with noise and we also get a look at the mean little bastard bolted into the front of a mini-pulling tractor. We’re not sure what class this combo runs in or what the rules of said class are, but we want to see this tractor get to work. Why? Did you miss the part about this being a once cylinder engine with both a Kenne Bell screw blower AND a healthy sized Garrett turbo on it?!
Somewhere under all of the awesome piled onto it, is a 150ci flathead engine. We have to imagine that the block and rotating assembly are all 100% custom built because as we’re sitting here typing this there’s nothing coming into our minds that exists in the world as a stock 150ci one lunger. We’ll need your help in learning what class this machine fits into so we can try to dig up videos of the tractor actually hooked to a sled and flinging dirt halfway to the moon. We’re reaching out to the people that posted the video to see if the combo has ever been run on a dyno or anything. We have run angry v-twin pulling engines and even some single cylinder dyno video before but we’ve never encountered one like this. The induction system alone looks epic in this quickie cell-phone video!
Your mission if you choose to accept it is to watch this video and then tell us what the hell we’re looking at. Oh, we’re going to run outside and size up our lawn tractor for how to mount the blower as well. DO WANT!
PRESS PLAY BELOW TO SEE WHAT COULD BE ONE OF THE MOST POWERFUL ONE BANGERS WE HAVE EVER SEEN!
Brian…all knowing savant of the world of pistons, you have to find out more about this motor! Unless it’s a typo and it’s really 150 cc instead. 🙂
Years ago I was at a mini tractor pull. A guy there had a completely home made engine ,with a blower on it. He used the back part of a 454 crank and cam. And he built the rest of it. He used a large belt drive on a chainsaw to start it. it was quite impressive .As ,this engine is very impressive.
Zoom Zoom.
https://www.youtube.com/watch?v=OyC7vI651uo
And a Roots Blown one.
https://www.youtube.com/watch?v=vP1mYcWZhj4
Ride along another Roots blown one.
https://www.youtube.com/watch?v=mJVDKN0ubKw
There was never very many Open tractors built and I don’t believe National Quarter Scale Pullers recognizes it as a class any longer.
As CPR stated, there never were a lot of those tractors, but they were impressive.
If I recall correctly there wasn\’t a displacement limit. Weight limit on the class single cylinder, flat head alcohol fuel.
Every one that I ever say was built by someone with a machine shop. Crankcases, cylinder blocks, heads, cranks, etc were all custom made, often from billet.
The big cui, and being single cylinder gave them quite a \”thump\”.
I was at a tractor/engine show in Clio Michigan early 2000\’s. I was watching lawn tractor pulls. M-T pocket pullers event. I hear the snottiest sounding thing Ive ever heard start up. After talking with yhe guy briefly. He tells me its a cylinder from an airplane engine mated to homemade crankcase. Feeding it with a 671. The guy couldn\’t keep it on the track. The tractor was pretty much unmodified just stripped down old p.o.s. Been looking for videos for years of it with no luck. Which brought me here. Anyone with any info on it would be great.