Bike engined race cars

[Count 'Johnny' Spinoza]

Originally Posted by andy97

I was at the British Superbikes meeting at Donington on saturday & the commentator made the same observation about lubrication problems in the sidecar racers because they don't lean like their bike cousins.

Hi Andy

This is all manageable in a car.

On the R1 (and Gixer) motors fitted with a specially designed baffle, we simply fill to the top of the sight glass, thoroughly warm the oil, rev it to 3000rpm for at least 10 seconds (note that the oil level drops to ~ half way down the sight glass when we do so) and pour in oil until there's just a small bubble at the top. Obviously, this robs a little power and the oil takes a bit of a pasting, but we pull well over 2G in the corners and the oil pressure is rock solid and regularly replacing oil is cheaper than replacing engine parts on the same frequency.

Most folk with 'Busa motors dry sump them but, then, they've got the extra power to drag around all of the associated gubbins and extra oil with them.