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Showing content with the highest reputation on 06/13/2017 in Posts

  1. Bump!! Canadians welcome to buy with inflated & unexplained extra shipping cost and gifted payment. Please no dumb questions. Sent from my iPhone using Tapatalk
    3 points
  2. Water pump engineering is tricky work to get right, even at static rpms. With a PTO driven pump off of an engine, the pump performance becomes highly variable with rpm. The target flow rates of any proper pumping system employed for thermal transfer is the turbulent flow threshold. However, this flow rate target may only be achieved in certain ports, and the radiator cores may be too small have any appreciable gain from turbulent flow. In short, the radiator cores are purposely designed to limit flow rate based on ideal differential pressures. The theory of "slower water works better" is not supported by any engineering practice. In fact, higher turbulent flow will always perform better. However, there is a point of "diminishing returns" for too much flow rate as this just eats up power to run a pump. I guess I could go on all day about thermal transfer but we helped an aftermarket company design their radiators. They were good at making them, not so good at calculating the thermal exchange. You have to look at the thermal conductivity of the radiator (Aluminum), the fluid, the thermal mass, surface area, air temps, etc, etc. A radiator is just as variable as anything else in the system. What does this jargin boil down to? In the Banshee, we design to ensure the pump does not have significant "slip" which is basically power lost that only generates MORE heat. We target higher operating pressures and proper impeller filling, which will eliminate cavitation. When you look at a pump curve, there is always a pressure/flowrate comparison, and it became obvious that in auto industry, "high flow" seems to be the trendy term(we even use it), but "high pressure" is typically more ideal. Why? I will use just an example. If the stock Banshee pump can do say 2gpm at 0ft of head pressure, that flow rate could drop to a poopy .5gpm at only 10ft of head pressure. So when looking at the "flow rate" of a pump, you must always consider the pressures too. And when it comes down to flow velocity, it doesn't care about pressure, but without pressure(differential pressure really), you cannot get efficient flow across the radiator. Brandon Mull Engineering
    1 point
  3. It funny, their page doesn't say anything like that http://www.prodesignracing.com/main.htm But, I also believe faster moving coolant is counter productive. It needs to stay in the radiator to cool. That's why thermostats' job is two-fold. Another well argued topic. And Banshee ain't got one anyway.
    1 point
  4. pull the filters and see if both slides raise when you push the throttle. See if the slides are in correctly
    1 point
  5. If I understand correctly in your first post you ditched the airbox for pods, is this the case? if so you better feed it more fuel. This is not going to help your throttle cable issue, but if you went from stock airbox to pods your gonna have to go up on your mains and probably your pilots as well.
    1 point
  6. Water pump working? Giving away "TSS" for FREE!!!
    1 point
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