Thread: Oil
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Old 08-08-2025, 08:53 AM
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What is stated in post #5 is what I have seen take place also .

In about 40 seconds time depending on the hp and speed of the drill you prime with even a 60 psi pump will have pumped 3.5 QTs or more out of the pan and into the motor .

And this is without the motor running so where talking no added rocker supply or bearing related bleed taking place .

While a stock type windage tray is nice you must drill out the center drain holes much larger and add two or 3 more.

There no question that the pick side of the pump needs a large supply of oil that has not been run through the motor yet so not got any air in it .

For even a boring 20 second long 1/4 mile pass the stock 5 QTs in the pan cuts it just fine if the motor does not rev over 6K.

A oval track or cross country race motor needs every effort made to give oil rest time for the air to work its way out.

My hat is off to the oval track engine builders who got there motors living through 500 mile races up at average of 8000 rpm .

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