Quote:
Originally Posted by mans
A trick that a lot of drag racers use is to cut off every other fin inside the water pump. They have less drag, more power, more miles per gallon, and adequate cooling.
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which pumps are you talking about cutting the fins off? the stock pumps or the electric ones? do you mean cutting every other fin off the electric pump for lower power consumption?[/QUOTE]
I was talking about cutting every other fin off the stock water pumps for the 2.2 and 2.5 Chrysler 4 cylinders that were built from 1981 through the 1990s and were replaced by the 2.0 and 2.4s that came out in the Mini-vans and Neons, & etc. A lot of V8 guys did this too, but the vast majority of low budget racers would simply remove the belt that turned the stock water pump, make a bracket to hold a heater electric motor, and use that to turn the stock pump.
I found that the electric pump that I used back in the 80s is still around. Makes me think about putting one on my current cars! Back then it was under $40. You could mount it anywhere. On the old 2.2/2.5 cars I would simply remove the water pump (3 bolt attachment) then get an extra thermostat housing and bolt it to the block in the place of the stock pump. The I simply used 3/4 hose to splice it inbetween the inlet/outlet of the stock pump and use a on/off switch to control it. It was great ffor cooling the motor between rounds when we were being run round-robbin due to time constraints. The motor pulls 8A. Now-a-days you can buy on/off switches that are temperature controlled with a sensor and you would not need to worry about remembering to shut it off...or turn it on.
Pump
http://www.amazon.com/Jabsco-18660-0.../dp/B000O8FBDE
Switch:
http://www.google.com/products/catal...d=0CGEQ8wIwAA#