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ChadS
06-12-2004 08:52:10
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Re: Re: Re: ChadS, want to hear more on gov. trick in reply to Hank, 06-11-2004 14:56:18
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Here is what happens with a stock spring in the farmall governor when the load gets heavy, one day I was working on a H on the dyno, looking for more lug in the engine, dad cranked it down, and I wtached the linkages, the governor gave up, and shut the carb down before the engine died,, thus, causing the engine to die even faster!! All I can think of is that the weights in the governor overpowered the spring, and shut it down, following the rpm drop. it was a characteristic that I found in every tractor I did the same test on. Dad and I searched for 3 years to find the right combination and dimentions of spring that worked, When the spring is installed, the tractors were alot more snappy in throttle responce, gained 3 hp just by swapping it out! Now when the engine lugs down in the same mannor, the governor keeps the carb open throughout the rpm ranges, wide open throttle reponce in changed, just for the simple fact, that the weights dont over ride the spring. when the pan drops, or the load gets heavy, the governor sences the drop, and opens the carb to wide open postion, cause when you are under that kind of load, the carb better be open all the way, and in 95% of the tractors out there, what I described, is what is happening. Ok ,it changes the responce time in the governor to the carb, it really helps on the torque curves on the dyno,, where when you lug it past 540,, the HP will increase mabe 3 or 4 hp over the 540 reading,, now it will be 10-15hp jump with a spring change, if you rejet the carb with it, the results will be higher. So when the engine does not die off so fast,, that could mean an inch between 1st and 2nd place!! Hope this helps! ChadS
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