Re: Stock IC pump GPM?
I tried the Harbor Freight pump once upon a time (still have it in my tool box) and it I think it actually moves too much water, plus it is freaking loud as hell.
When I was looking for a suitable replacement I was buying the Atwood aerator pumps from Walmart and they would work great for about a year, then the coolant mix would eat the steel impeller shaft.
I went to Cabellas one day and they had a yellow aerator pump from Johnson for $18 that had a stainless steel impeller shaft. It fits the stock location with a few minor modifications and has been running like a champ for over 5 years now.
That's my recommendation.
Edit: Looks like they've gone up in price and changed color, but otherwise this looks just like the one I use:
http://www.cabelas.com/product/John...&Ntt=aerator&WTz_l=Header;Search-All+Products. I just put a 90* elbow on the vertical outlet side to alleviate the hose kink issue a lot of people have.