914 Water pump, Yes a SBC Options

[drive-ability]

I'm replacing my Renegade/Chrysler BB pump, since it locked up last night. I didn't here any noise at all ? The engine does make a bit of noise but you would think there would be some warning. Nope ! Maybe something broke off and jammed up the impeller etc. The pump just locked up and melted the drive belt.
My question is I have been running a standard pump and decided to get a high volume unit. My assumption is the quality is better than my last one and with A/C it might perform better moving more water. I guess with more pressure comes it own set of issues. One thought is the belt was too tight, and that's a good bet.
I'm not running a Thermostat but am running a minor restriction in the thermostat housing, which I think I should remove.. ?

Any one have any input here. (IMG:style_emoticons/default/type.gif)

[charliew]

I'm not sure I follow the idea of a smaller hot water line and a bigger cold water line. Most things expand with heat and contract when cold except for water that freezes that I work with. I do have three fieros and they use at least 1.250 or 1.50 id lines to get to the front radiator. I noticed the small lines on some v8 conversions but I never planned on running any smaller than 1.250 id on my suby conversion. I think I've read where mercedes or some mfg uses a electric water pump controlled by a electric thermostat. This kinda reminds me of the guys that use to badmouth the airride stuff when we discuss the electric water pump. I know mezerie probably makes a good pump but the small lines may put to much restriction on the pumps.

I'm afraid the 33% may be too much change and the pressure will get really high at 6 or 7k. I never had any success changing the pulleys on sbc pumps.

You can gets lots of ideas here and there are probably lots of people that have fought cooling problems on hot rods. I would check on what the gt40, pantera, or the others do or any other how high performance mid engine cars work on their cooling.