Oil Amount Question

[Eman]

First I install the dipstick and tubes with the engine on the stand and see where the full mark is relative to the crank. Then you can fill to where you want the oil level to be on startup. 1/8mi you can get away with a low oil level, I don't know about the 1/4mi.

[randy wilson]

Originally Posted by Eman

First I install the dipstick and tubes with the engine on the stand and see where the full mark is relative to the crank. Then you can fill to where you want the oil level to be on startup. 1/8mi you can get away with a low oil level, I don't know about the 1/4mi.

I ran 5 quarts in a 7 quart pan successfully for years in the 1/8th mile with a high volume, high pressure pump, but the second run in the 1/4 mile, going through the traps at 10,600, we spun cam bearings. Is it the extra 1/8th mile? I think it was.

[Jeff Stout]

I installed a digital dash and have a oil pressure sensor. I have a 7 quart pan and run 5 quarts. When replaying pass the oil pressure would fluctuate from 15lbs to 50lbs throughout pass. Looks scary on graph but no bearing problem in filter or on rebuild. Motor runs 6300 to 8000 rpm. The fluctuation is so fast in time and I don't think a mechanical oil pressure gauge can catch it.