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Old 12-21-2005, 07:51 AM
Gregscalade Gregscalade is offline
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Join Date: Dec 2005
Rep: 10 Posts: 3
Location: Tennessee
Selecting transmission oil cooler size

What are the determing factors in selecting the appropriate sized oil cooler for an inboard transmission? is there a 'standard rule' for the amount of cooling area needed per HP?

thanks
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Old 12-22-2005, 06:05 AM
FAST FRED FAST FRED is offline
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Location: Conn in summers , Ortona FL in winter , with big dock & room for O'nite stop .
Usually this is specked by the tranny mfg.

The reason ithere is no STD RULE , is the heat generated by each style of tranny is very different.

WE have a DD 6-71 hooked to a Twin Disc , that is ALL mechanical, so no cooler and only 5 quarts of oil in the tranny total.

Compare this to a hydraulic nightmare that needs 20 quarts of ATF and a good sized cooler.

Only the mfg knows the heat generated by each setup.
Overcooling or undercooling are both bad.

Sorry,

FAST FRED
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