Triumph TR's have the blades at right angles to the shaft and that
works fine for them. Dunno about for the Spridget, though.
- Tony Drews
At 06:32 PM 9/16/2008, Norm 2Bs wrote:
>I just bought a new water pump for the modified 948 Spridget engine in my
>Turner racecar. It's an alloy body with stamped metal impeller by GMB,
>Japan.
>
>The angle of the blades on the impeller are very nearly at right angles to
>the shaft, whereas the blades on the cast iron impellers of the old pumps I
>have are at nearly a 45-degree angle. I find it hard to believe that this
>new pump will do anything but cavitate at race-speeds (3,000 to 6,000 rpms).
>
>Have any of you with race or street Spridgets had any experience with this
>brand pump? Is it good or bad? I ask because I need to grind away
>clearance at the top for the thermostat housing section of the head. Can't
>return it after modified. Has anyone modified the impeller in any way
>(blade angle, spot-weld, etc.)?
>
>Thanks in advance for your help.
>
>Norm Sippel
>'59 Turner Mk.1
>Florida, USA
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