77 standard puller info

olliejps · Jun 25, 2015

I have a gas 77 standard that I am thinking of pulling in the local antique pulls. I was wondering if anyone else has pulled with one and results and advice. Our rules restrict much to be done on the engine, but allows for bigger tires. I can go all the way up to 18.4-26 and still sneak in the class, but is that too much tire?? It has been rebuilt at one time is putting out 50hp on dyno at allowable rpm. thank you for any information!!!

A.P. · Jun 26, 2015

A lot depends on what weight classes you intend to pull in, what (if any) modifications are allowed to the tires, the chain length and angle to the sled and the type of track. I would think you should be okay from the 3750# (maybe 3500# depending on how the tractor weighs out) through the 5000# (maybe 5500#) classes before you run out of power. The light class(es) you will probably be able to pull in 2nd gear and the heavier ones in 1st. As with anything, your mileage may vary.

Good Luck!

olliejps · Jun 26, 2015

Thank you for the input.

Yes I would be looking at the lighter classes for sure. I know the rowcrops with higher tires are better, but its something different than all the others going down the track. Not a big deal to win, but would like to be close to the winner!

A.P. · Jun 26, 2015

A lot can be learned to improve your performance. Learning to balance the tractor depending on the sled, weight class and track conditions would be a good place to start. For some people this means keeping a notebook (a good idea) of what was right or wrong and where you placed your weights.Spend time studying the track. Where are people spinning out? Are there high or low spots that the tractor dips into or the sled get stuck min or hung up on. Sometimes a different line down the track can avoid these or add a few feet or inches to your pull which can improve your placing. How much air pressure you are runniung is another good thing to keep track of. You want the sidewalls of the tires to wrinkle a little bit and the tires to squat some. Check the spot where your tires spun out as you pull out of the hole. If the hole in higher in the center than towards the edge you need more tire pressure. There is more than one winning setup and they can vary significantly from time to time. The single most important thing is to have fun and not get discouraged.

Good Luck and let us know how you do.

bock · Jun 27, 2015

very good advice, short wheel base tractors are a little harder to balance but can be done

olliejps · Jun 27, 2015

Thank you very much for the input, definitely some things to pay attention to that I didn't know!! Lots to learn and play around with. I have a cockshutt 770 that I pull once in a while, but I didn't want to put weight brackets on it after all the time put in it restoring it. But yes, I have seen huge differences in tracks just in the bit I have done with it.

I will keep you guys posted on how it works out!

77 standard puller info

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