Oliver 77 Max RPM

OliverPuller428 · Aug 5, 2015

Hi, Im new to the site. I figured this was the place to come to pick the brains of experienced Oliver owners. I currently have a 1950 Oliver 77. I Just started tractor pulling with it and I am learning the ropes. A few days ago I adjusted the governor spring on the throttle linkage to get more rpm's out of the tractor. I was wondering what is a safe "Full Throttle RPM" for a stock tractor. I adjusted the governor hoping to achieve more power. Tractordata.com shows the tractor was rated for 1600 rpm from the factory. I have heard of other oliver pullers adjusting the governor linkage because its a free and easy way to achieve more power. I did some research and talked to a fellow puller would said that the tractor should be able to handle 2200 rpm's at full throttle. Advise would be appreciated. Thank you.

Sprint 6 · Aug 6, 2015

I don't know a practical max, but the Super 55 maxed at 2200 factory. Similar engine to a 77, just two less cylinders. Check your rules, though since you are new. In my area, most antique classes only allow 200 over stock.

Dblair · Aug 6, 2015

I wouldn't go to much without a steel flywheel .

BM · Aug 6, 2015

1550 engines were just a updated 77 engine. They were set at 2400 rpm.

Traditional Farmer · Aug 6, 2015

I've seen them run with a wire hooked directly to the throttle and held wide open for the whole pull.

OliverPuller428 · Aug 7, 2015

Thanks for the advise. I'm going to set the governor so that the engine turns about 2,200 rpm's at full throttle. I'm going pulling this weekend so we'll see how it does.

Oliver 77 Max RPM

OliverPuller428

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Sprint 6

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Dblair

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BM

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Traditional Farmer

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OliverPuller428

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