Join Date: Jul 2008
Location: Huntington, New York
I was telling a friend in the race business about this and he said "wait a minute" and then came back with one of the shafts from a hewland transaxle / gearbox. It had the same type of gundrilled center and oil holes distributing oil down it.
The transmission had a internal gear pump.
One thing I noticed about the shaft as I looked at it was that the holes that were drilled to distribute the oil into the gears bushings were sized progressively larger as they moved away from the source of the oil. I guess the designers had tested the output at each gear and come up with the sizing.
1972 Berlina Vintage Racer, 1987 Milano Platinum (LeMons Car), 1982 GTV6 EP Race Car, 1974 GTV Vintage Race Car, 2012 VW GTI stage II, 1966 Corvette Coupe 327-350, 2007 Triumph T100 Bonneville. Dearly departed: 1971 Fiat 124 Spider, 1983 Saab 900 Turbo, 2004 Saab 9-3 Aero, 1995 BMW 540i Sport, 2014 Audi A4 (swamped)