| Dont be afraid of a large turbine housing, one of the Swedes who feeds me dribbles of information tells me that even the big turbines spool quickly and give very low backpressure.
On the downside control is difficult requiring two large wastegates.
On the upside the low backpressure means 300deg duration cams with big overlap is on the cards, they measured 2bar back pressure with 2.4bar boost - meaning that there was no chance of exhaust gas reversal.
Rob |