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Message: <blockquote data-quote="Tazza" data-source="post: 10245" data-attributes="member: 82">Basically its producing wasted potential power. Most of the time the oil will be simply flowing back to the tank and doing nothing but generating heat. This is where variable displacement pumps shine, they only produce flow when needed.As for less power, the hydrostatic pumps will produce up to 5,000 PSI, most fixed displacement ones go to around 3,000. At low drive speed i don't think you would have the same power and if you did, you would be loading the engine the same as if you were driving at top speed.I am far from an expert on hydraulics, i know it would be far more efficient doing it with the pumps it has now but it will indeed work the way you describe. Don't let me talk you out of it, i want to see this! Just one thing to keep an eye on is that you don't use pumps that are too large for the engine to handle, if you get that rite, i see no reason why it won't work.</blockquote>