performance gains with dry sumps

[powered by wattard]

We pulled upto 20inHG (40kPa Absolute) in our crankcase with our dry sump setup, and saw no power gains upto 10500RPM when compared to pulling no vaccum. Not sure what is going on, from previous experience I expected to see a few percent improvement in reduced windage.

Has any other teams seen performance gains by pulling vacuum in the casing. If so, in what engine and at what speed.

William Attard
MUR Motorsports 00-04
Melbourne University

[powered by wattard]

We pulled upto 20inHG (40kPa Absolute) in our crankcase with our dry sump setup, and saw no power gains upto 10500RPM when compared to pulling no vaccum. Not sure what is going on, from previous experience I expected to see a few percent improvement in reduced windage.

Has any other teams seen performance gains by pulling vacuum in the casing. If so, in what engine and at what speed.

William Attard
MUR Motorsports 00-04
Melbourne University