400 farmall more power March 22, 2020 12:28PM
Has electronic ignition hotter plugs high compression pistons turns out 55 to 57 on the dyno will more fuel help it or what else can I do before spending a lot of $$$
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Re: 400 farmall more power March 22, 2020 01:42PM
Reground cam
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Re: 400 farmall more power March 23, 2020 08:00AM
Little to improve much to be where you want to be, 15 hp doesn't do much except frustrate you. Bore and stroke, - then go bigger than planned first time, it takes 100 plus hp to be competitive in 4500 # 3 - 4 mph classes small tire classes.If you think the stock tractor winning is stock, go home stay there.
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Re: 400 farmall more power March 23, 2020 10:10AM
I know the top tractors aren't stock I even have a pretty good idea on what their turning. I place last year a few times with the setup I have. Just wanting a little more to were I dont have to pull the t/a like I have to sometimes in the 6500lb class. I have two others i pull in the bigger classes so no extra money for the 400 this year. Next year I'll stroke it. I heard a w-9 carb would add 10hp so just curious if there is any other tricks
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Re: 400 farmall more power March 23, 2020 11:07AM
it takes fuel, timing, carb setting, air intake system and air pressure, tires, weight distribution also
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Re: 400 farmall more power March 23, 2020 11:11AM
I know weight and tire pressure does it need more than stock carburetor?
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Re: 400 farmall more power March 23, 2020 11:19AM
Quote
billee,
Little to improve much to be where you want to be, 15 hp doesn't do much except frustrate you. Bore and stroke, - then go bigger than planned first time, it takes 100 plus hp to be competitive in 4500 # 3 - 4 mph classes small tire classes.If you think the stock tractor winning is stock, go home stay there.

It might take 100 plus horsepower in the 4500 lb 3-4 mph class at a national level pull but it sure doesn't take that much at lots of local level pulls..My 110 hp MM U has never embarrassed me at the local pulls in 5500 thru 6500 at 4 mph..I'm a spectator at national level pulls...
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Re: 400 farmall more power March 23, 2020 11:32AM
I was guess our top competitor to be about 130hp at our local pull. Not looking to place every time just be a little tougher. I honestly think the tires are to much for it right now they bite hard. Never spins until you have to pull the t/a
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Re: 400 farmall more power March 23, 2020 11:45AM
Horsepower is a product of RPM and Torque. Focus on increasing (or maximizing) one or both of those factors to get you what you want.
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Re: 400 farmall more power March 23, 2020 11:47AM
Well I've already put a different govenor spring in it also
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Re: 400 farmall more power March 23, 2020 01:43PM
YOU can open up the ventura in the carb you you have thin the throttle shaft and shave the head and while your at it clean up under the valves a little and get a grind put on the cam as Patches said all of that shouldnt cost over 350 dollars
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