Increacing horsepower on wd 45

my first question would be what do you mean by 'out plow'? Are talking ground speed? Not spinning out? Fuel consumption? Acres per hour? I am not familer with the MM UB , my first suggestion would be to use as close of the same plow as possible. If speed is all your looking for  try to up the throttle on your tractor, set the plow to run shallow.

All you have to do is add about 80 cubic inches to the engine, the 5 inch stroke will help. Then add about 1/2 ton of weight to the 45 and you will be close as long as everything is balanced out right. Stock Minnie Moes would walk all over anything out there in the tractor pulls back in the 60's. Since he weighs more than you and is only pulling 2 bottoms, to even things out weight and horsepower wise you should have a 1 bottom 16 inch plow.

You should be OK as you are.  You need a 2-14 mtd plow and add 500 lbs to rear wheels.  If both are stock you have more HP that the UB.  I have a 45 with 2-14's and can go (2)3.75 and (3)5 mph.  You need to get the plow adjusted properly.  I usually plow 8" deep.  So make sure he is plowing at same depth.  -  AL

Put a 1800 governor spring in it.

If you're up for modifying the engine, a set of 170 pistons from AGCO are like 8:1 compression. The OE WD45 is some where around 6.75:1. I was browsing my copy of the D17 parts manual and it lists D17LP pistons at 8.25:1. That would be another choice if they're still available. Use a 170 cam and carb and you should easily up the HP.

ML Pankey is the guy to ask about getting in touch with him. All I know is they are custom grinds. Berry Cam Service in MN is another place to try for a custom cam. Far as I know, you don't have to change the oil pump. There was another thread a day or 2 ago that you can change your bypass oil filtering system to a full flow with a few modifications.

17toy, he's wanting to "Out Plow" a MM UB. The UB had more HP and weighed 2000 lbs more than a 45 and the UB is pulling a 2 bottom plow. It's like apples and oranges.

Make him plow with a 3x14 like you and you should have no problem out plowing him. I don't care that he has a few more ponies or a ton more weight. He will spin too much to beat you. Heard of and seen many time of 45's out plowing bigger tractors. Back in their day the dealers really liked to demo them til the competition quit showing up as I was told by the old AC mechanics I used to work with. By the late 60's you couldn't get the competition to show up at all to plow and be timed with a stop watch. Things switched to large demos of just showing how their outfits worked and not so much as a head to head competition.

A UB moline weghed 6050 lbs was on 13/38 rubber and had 46 pto hp at 283 ci . you get the 13/38 tires and 283 ci  weight up to 6000+ lbs and you will out plow a ub.

all you need to do is get a set of 2 bottom 14" plows and set the depth as deep as it will go and you will out plow him, I do it all the time with my 45 it will be faster and plow deeper than most guys do.

Thanks for all your ideas. The contest is acres per hour at 6 inches plow depth. I own the land so I can pick the field. I have clay and sandy soil. What do I want? I like the idea of the 2 bottom on the wd 45 as I really want to lap him in the field. I have a 2-14 allis plow from my wd so that is no problem. I am not limited by a budget . If I need to put 2 or 3 thousand in the engine I am good with it. Therfore rebuilding the 45 into a 170 is no problem if the parts fit. I have read the d17 and 170 motors use different bearings. I don't know if there is a difference in the heads. Is the compression difference changed by the pistons only like in the super m's and h's or is there a difference in the heads.I read the carberator on a wd 45 is 1 inch while a 170 and d17 is 1 and 1/8 inches bore.  Where do I get the power cam at? Any one have an address. Remember unlike tractor pulling I need to be able to do this for hours and not look modified. I was planning to liquid load the front and rear tires. If I need to I'll put a front loader on it.

Get some farmall H connecting rods, etc,   Lord ,here we go again..........  Got  to win ,money is no object?   IF your  wd45 has a good number on the dyno now, good rubber, loaded tires and a few added wheelweights and a properly set up plow you are gonna smoke him in acres per hour.  3-14's in 3rd gear with a traction booster is all you need . Insist that he pull 3-14's and  have at it.  My .$.02

Gary, He is going to demand he uses his 2-14 Oliver plow. I have always said Allis made some of the best tractors made. I know he has the governor spring and pump cranked up . However he never rebuilt the motor. The rpm and additional fuel will help him. I know he has a real advantage in weight and horsepower. However I believe the mounted plows will expose his traction weakness. Besides, I would hate to have to use my 1932 Allis L crawler to defeat him. Ted

I am confused. If the contest is acres per hour at 6 in depth let him run a 2-14. If he runs as fast as he can go and stay on the seat and you pull a 3-14 in third gear you are still turning 50% more dirt with each pass. He will have to make 3 passes to every 2 you make to turn the same amount of dirt. So he should lose more time turning than you will as well. Now if it were just a drag race it would be a different story. I would think the UB would pull a 2-14 6 inches deep at full speed road gear in concrete if he wanted to. But that's just my opinion. Something you might want to check is how much fuel each tractor uses. I bet there will be a big difference.Billy

Garry its true I believe there is never to much hp.  Yes the 170 ,175 sleeves and pistons will fit . pistons and sleeves have no bearings to be a issue.   I wasnt thinking of using a 8 inch rod in the motor as garry thought I was thinking about . I was thinking alot on details in the head as valves and valve train . smoother radius turns toward  the intake valve etc. I wouldnt get wild with the exhaust valve and port on a small bore size engine .

Edited by mlpankey - 22 Sep 2010 at 8:00am