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Avery: As far as we know the Super A didn't have more hp than the A The engine specs are identical. A lot of folks that had both tractors when they were relatively new, will tell you the addition of live hydraulics actually cut drawbar and belt horsepower on the Super A, versus the A. The Super A was never tested at Nebraska, thus there is really no official test saying it was more horsepower. I've owned 6 offset tractors in my lifetime, can't actually say each one had a bit more horsepower over the last model. My tractors were 3 Super A, 2 - 130s and a 140. 100, 130 and 140 should have had more horsepower from the C-123 engine however larger tires, basically offset the increase in power. Right now, I still have a Super A, 130 and 140, on hard ground the SA will give the other two a hard run on a drawbar pull, with the right driver might even outpull the 130 and 140. The 130 and 140 do get an edge on soft ground where flotation is important. I know there was a just for fun tractor pull on a hard track a few years back. I took my Super A, watched those guys with bigger tires spin out before I did. Had they held that pull in a plowed field, I'd have taken the 130.
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