aftermarket water pump cover/impeller...does it work? why?
I was under the impression that we wanted the intake tract, carb, etc. as cool as possible (as long as the fuel can stay vaporized)...
...and the combustion chamber hotter (understanding that preignition will at some point become a problem). Since the carb is insulated, and part of the intake tract is made from rubber and exposed to outside air, I wouldn't think engine operating temp would change the temp or density of the incoming air.
Now things are not so simple with a two stroke, because the mixture is pumped into the crankcase, which warmer than ambient temp. The mixture is then transferred up to the combustion chamber, but on the way it travels thru the cylinder. hmmmmm...
I have found the cooling system on dirt bikes to be very efficient, and more than adequate, only managing to overheat a bike maybe once or twice, and that was on a hot day, first gear, barely moving, stuck in the mud, etc.
So, if you read between the lines, I am doubting the effectiveness of this "performance bolt on" product. Anyone out there with any real proof that this increases horsepower (not "I bolted it on and the bike feels way faster)??
I was under the impression that we wanted the intake tract, carb, etc. as cool as possible (as long as the fuel can stay vaporized)...
...and the combustion chamber hotter (understanding that preignition will at some point become a problem). Since the carb is insulated, and part of the intake tract is made from rubber and exposed to outside air, I wouldn't think engine operating temp would change the temp or density of the incoming air.
Now things are not so simple with a two stroke, because the mixture is pumped into the crankcase, which warmer than ambient temp. The mixture is then transferred up to the combustion chamber, but on the way it travels thru the cylinder. hmmmmm...
I have found the cooling system on dirt bikes to be very efficient, and more than adequate, only managing to overheat a bike maybe once or twice, and that was on a hot day, first gear, barely moving, stuck in the mud, etc.
So, if you read between the lines, I am doubting the effectiveness of this "performance bolt on" product. Anyone out there with any real proof that this increases horsepower (not "I bolted it on and the bike feels way faster)??
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