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-   -   Early 87 700R4 7 VANE PUMP TO 13 VANE UPGRADE (http://www.hotrodders.com/forum/early-87-700r4-7-vane-pump-13-vane-upgrade-194215.html)

drstrader 03-10-2011 05:01 PM

Early 87 700R4 7 VANE PUMP TO 13 VANE UPGRADE
 
Is there any issues that I should be concerned about with upgrading the 7 vane pump to the latest 13 vane pump kit. I assume that it is better than the 10 vane kit.

Crosley 03-10-2011 08:18 PM

no problems with a 13 vane set up. 10 will work just fine.

Set clearance of the rotor at .0015 - .002 for best results with flat surfaces in the pump and the stator cover is flat - smooth too

Chazmac 03-11-2011 09:11 PM

13 vane pumps are designed to keep the 300mm converters full at road speed. Additionally they are the most prone to break the rotor under high load or increased horsepower. Use a 10 vane; they worked flawlessly for years.


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