Re: tractor pull

Posted by Pete76NY on July 27, 2010 at 23:08:35 from (66.194.51.233):

In Reply to: tractor pull posted by c-man on July 27, 2010 at 20:00:17:

c-man...the info I am going to give you is based strictly upon my experience in "strictly stock" and Division I NATPA pulls (no performance mods, no hanging or suitcase weights, only stock wheel weights in stock locations.)
Our Super C is bar none my favorite tractor to take to a pull; you have a chance to be competitive or win (unless someone shows with a good Ollie Super 66) in more weight classes than you would think. I start ours at #3000 (ours has fast hitch which if you have also they will probably make you lock in place...talk on that later,) and while it is competitive at this weight it usally gets beat by a straight C with no Fast Hitch as this allows them to have some wheel weights on, thus putting the weight in a slightly more useable position. At #3500 with some weights on it gets much more competitive and as you add weights and hit #4000 and #4500 that"s where they really excel! At #5000 you will see the Super Hs get a little weight added and they start to come on (the only straight H that should be able to beat you if it is truly stock at any weight is one that has the "creeper" 1st gear,) but I pull ours as far up as #5500...you will be competitive and under the right conditions can occasionally steal one at that weight.
2nd gear is a tad tall, but I use it in the #3000 class as I will spin out long before I power out with no weights on...1st gear in all other classes.
We run 12.4 x 36 6 ply Coops that are old and hard, usually around 4-6 psi depending upon the track condition (of course if your tires are loaded it changes things a tad.)
We use threaded rod in the holes in the wheel center, bolted in so that you have 6-8" on the inside to bolt half weights on, and about 20" on the out side to slide full weights on (to get up to #5500 you"ll have quite a few weights sticking out!)
The other thing we have done that sounds like it stretches the rules a bit, but stays within them is built a small adapter bracket that slides over 2 of the rods on the outside and allows you to mount a set of front weights on the rear, this allows you to adjust down in even smaller weight increments.
Usually I have found that the front weights mounted in the front cause it to be too head heavy and prevent good weight transfer, although I do run them at #5500.
Make sure your governor spring and bumper spring are in good shape and stiff ( a tad stronger governor spring never hurt anything, just be careful if you are being tached @ weigh in!) A properly functioning Super C governor is VERY fast to come up, so use your throttle as you bog, don"t just throw it all the way forward and go cuz you"ll spin out alot sooner...keep the RPMs up high at first for speed and momentum, then when you feel the governor start to kick in, drop your RPMs as low as possible and keep working your throttle and brakes. Remember a C is light enough that if you have any weight to you, leaning backward and shifting your weight side to side when you start to spin can affect things enough to help sometimes!
As far as locking the Fast Hitch...most places will allow you to simply disconnect the lift lever at the pin on the light bar, but as you ad weight, and play with psi you will lose/gain drawbar height and it is tough to adjust it that way. I simply cap off the hydraulic lines where they screw into the cylinder and install a manual ratcheting turnbuckle type cylinder like they use on tow behind rotary cutters...that way you can jump off while you are on the scale and infinitely adjust the height to be right on the money.
Another thing that helps is to use large washers above and below the drawbar over the drawpin in between the clevis jaws...this allows you to measure to the center of the clevis, and it keeps the clevis from dropping down under load and lowering your hook height.
As you can see, you hit one of my favorite things to talk about: pulling with a Super C! Untill I find an Oliver Super 66 I can afford, the Super C will remain my favorite puller!
Have fun and good luck! Pete

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