Quote Originally Posted by gn7 View Post
Yep. Cylinder pressures are stupid. Specially when you consider a roots goes to full boost on the hit, regardless the RPM. So coming off a corner in one is hell on the lower end. Even at Puddingstone where Bill never lifts, in the corners the engine is pulled down about 2000 RPM by the boat being deeper in the water plus the rudder blocking the prop. Full load at 5000 thru the whole corner just torments the crank and rods. That is the only place we ever tore the snout off the crank.
This is why I have such respect for the GNs, I recognize it takes a planning and skills to put one together AND keep it together, MORE than in the other classes that make 5 laps and are done...