praedet Posted June 22, 2009 Share Posted June 22, 2009 Something interesting for you altitude folks that are doing this... IF your MAF is scaled relatively close to reality, the folks in Denver (12.2 psi roughly) can take their airflow and multipy it by 1.23 to see how many g/s they would be flowing at sea level with the same volumetric amount of air... 260 g/s is roughly 320 g/s... The calculation is based on a 70 degree day, but does not change much with temperature... For C-springs where I log (11.42 psi) it is A 1.315 multiplier (260 converts to 342 g/s) This is not a true conversion as in most cases you would be outside the efficiency of your compressor, or off the map completely (i.e. you can't go there) if you did this exact thing. Pretty cool anyway Link to comment Share on other sites More sharing options...
Legend Posted June 22, 2009 Author Share Posted June 22, 2009 That's cool, Praedet. My 70-degree g/s with bone stock intake/filter and scaling is in the high 230's... so guess than translates to around 290g/s peak for for me. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
johnAWD Posted June 24, 2009 Share Posted June 24, 2009 Wow - interesting stuff, Ted. Link to comment Share on other sites More sharing options...
McDowell Performance Tunin Posted February 6, 2010 Share Posted February 6, 2010 I'm also at a fairly high altitude (Salt Lake City about 4,400ft). I'm finding my typical 60-80 runs in the low to mid 3's and high 4's for my 50-80. I only have an STI up and my first cat gutted after my turbo. I'm still tweaking my tune, but I was wondering if Airboy's spreadsheet is close to actual rear wheel HP numbers? I'm about 230hp and 260tq. Thanks for any feedback. www.facebook.com/mcdowelltuning [sIGPIC][/sIGPIC] Click Here for Stage1, Stage2 and Stage3 Tuning and eTuning Info Link to comment Share on other sites More sharing options...
05pearl Posted February 6, 2010 Share Posted February 6, 2010 230/260 seems about right for stage II+ at altitude. Link to comment Share on other sites More sharing options...
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