| Re: Primary tube math |
Subject: Re: Primary tube math by tequilaboy on 2008/8/6 22:52:37 I know there are some ceramic coated impellers intended to improve efficiency mostly used for turbos. I don't know how effective they really are for centrifugal superchargers, though. Less friction with the air maybe, I think the Raptor uses one. Coating the volute/diffuser may keep the components themselves cooler, but I think that would just tend to increase the charge air temperature. I'd really like to see somebody do a fully shrouded impeller like the old DVL design. That's supposed to be the most efficient impeller style. Basically an impeller with a cover on top of the vanes which avoids any leakage between the vanes and the case. Would be expensive. |
