Quote:
Originally Posted by serialk11r
2ZZ water pump with slightly bigger pulley will save a little bit of power but you probably won't get your money back for a long long time.
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I went up 11% in size on my K24 water pump pulley, and found I had temperature issues. I was surprised the cooling (at idle) was so marginal.
But yes, I agree, it would amount to some savings. Perhaps between compression and the pulley, you'd see 2-3%.