Quote:
Originally Posted by steffen707
The civic water pump is driven off the engine timing belt. There are water pump delete kits you can buy that just have an idler pulley there to run the same timing belt, but then you have to plumb in your electric water pump somewhere. I know some honda racing people do this, but that's mostly with b16 and k series engines. The d series economy ones might not even have these kits, but you could just as easily cut off all the blades on the water pump so you make an idler pulley; however, it might not be balanced then.
I wonder what the gains would be. Kinda seems like a PITA, but if its 5-10% MPG gain, then......  |
I suppose there's potential there. I'm more comfortable working the electrical projects than I am with the mechanical ones, but that's just me.
You still need to pump the water through the system; you can't do without like you can get by without a/c or power steering. I'm sure the oem electric water pump systems are computer controlled. I think for a DIY version you'd have to be pretty good about ensuring there's appropriate circulation, or you'd be paying the consequences later with a blown head gasket. Or pushing a lot more coolant through than you need, if you mis-estimate in the other direction.