#1
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Porsche 911 fan kit , which crank pulley ?
Hi
i have a Porsche 911 fan kit, with a real 911 fan/shroud on a type 1 engine , the kit came with a 5 inch power pulley, would like to know which pulley size you are using options i am considering are Gene Berg steel 1:1 pulley 4-1/4"OD 5 1/4 dry sump pulley 6 inch power pulley 7 inch stock pulley i would like to try how they affect engine cooling and hp increase/loss |
#2
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just for someone that might be interested
Sharpbuilt kit uses a 5 inch pulley GWD recommends a 5,7 - 6,0 inch pulley |
#3
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Since you live in Argentina and ambient temperatures might be high you should aim for a 1.6:1 ratio between bottom pulley and fan pulley.
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