Just a curiosity question, but my impression from reading posts in different threads here at OTT, is that the L2501 shares the same mechanical parts (other than the engine/HP) of its two bigger brothers in the series.[snip}
the engine can make quite a bit more power, but you also gotta remember it's application. L2501 is a sub 25hp tractor, and it's original thought was to take advantage of the 25hp threshold for the dpf, and that has been it's success.
next issue. Transmission. It's designed to run X ground speed at X engine rpm. When you modify the engine, you place more torque on the transmisison, clutch, drive train. Is it gonna take it?
Is this not the case?
I specifically remember a guy that posted about possibly adding a turbo to a L2501, and he claimed it would handle the extra HP just fine, since the larger tractors share the same mechanical components. No idea if true or not...