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Message: [QUOTE="Power Hungry, post: 521906, member: 1375"] Holy crap... That's what I get for going over the datalogs at midnight. My numbers are off. The Boost was GAUGE pressure (as indicated by the video of the boost gauge), but the EBP numbers I was looking were ABSOLUTE values. Compensating for a BARO offset of 14.3225 PSI, the backpressure numbers were actually around 37-38 PSI stock and 38-39 PSI with the new wheel. This means the corrected ratios were 1.226:1 for the stock wheel and 0.907:1 for the new wheel. I apologize for my miscalculations. Not to often I make such a blatant oversight. :morons: However, it still does not detract from the fact that the new wheel is extremely efficient. Here is a graph of the (corrected... :D) drive pressure vs boost. Unfortunately, since this was pulling directly from the MAP sensor for boost, it can only read to around 22-23 PSI which makes it rather useless for reference. I'm trying to fit a 100 PSI pressure sensor to the truck and correct the MAP table so that the datalogs will be more useful. At that time, I'll also be logging MAT sensor output to get a clearer idea of what the inlet temps are. [SIZE="1"](Click on image to enlarge)[/SIZE] [ATTACH=full]100456[/ATTACH] Once I get the new sensor installed, more data will be forthcoming. :D [/QUOTE]

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