Thread: High Oil Pressure ?

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Originally Posted by kitz

Some last thoughts,

1) The old rule of thumb is 10 psi for every 1000 rpm
2) I'm guessing a high volume pump puts out a total of ~6 gpm at 70 psi. This data is not easily found btw. Anyhow that would be about 1/4 hp which is why you can prime an engine readily with a hand drill.

Regards, Kitz

People have to keep reminding me about the old rule of thumb being 10 psi per 1,000 rpm.
That was true for a long time.
Like what was said in an earlier post to much pressure will cost you hp,break your pump drive and make you oil pump work that much harder.
To be honest if the engine has 50 lbs. at 7,500 rpm's I am fine with that has long as you have the right oil clearence for that application.

i wanna 40 hp drill, is that with a 39.5 hp shot of nos?