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Steven W. Boese wrote:
Ernest,
I've attached a couple of plots of MAP and RPM data collected from my 13B engine stand which has a belt driven centrifugal supercharger installed. The system is set up to maintain the pressure in the duct between the supercharger and the throttle body at about 3" Hg above that in the intake plenum. Without the supercharger, the plots are very similar except that the highest map is 23' Hg (7200 ft altitude on the ground here) with a corresponding highest RPM.
When you have your system all set up, I would expect your data would look similar to mine.
Steve Boese
Steve, could I get a copy of the spreadsheet you generated these graphs from? I'd like to plug my data into your graph. Then it would be much easier to compare. The only thing that I think would also fit well on this graph would be throttle position.
I need to do some work with the GPH calculations I'm doing. It must have an error someplace, because it is telling me that I'm burning hundreds of GPH while I'm idling. Somehow, I don't think that is correct.
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