14-01-2019, 11:04 PM
I’ve always thought that it’s not about oil pressure, but flow rate. You need flow to feed the big end with oil and the hydrodynamic forces in the bearing does the rest. In a conventional system all you need the oil pressure for is to ensure the oil flow doesn’t stall in the oilways in a rotating crank.
It wasn’t just the type13 that used jet lubrication. Bugatti used it quite a lot, but his design was a lot cleverer than Austin’s as it contrived to feed the journals through 360degrees not just as the crank web passsed the jet.
It wasn’t just the type13 that used jet lubrication. Bugatti used it quite a lot, but his design was a lot cleverer than Austin’s as it contrived to feed the journals through 360degrees not just as the crank web passsed the jet.
Alan Fairless