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Turbo horsepower calculator3/2/2024 ![]() If there is other information you would like to see here please contact us and we will do our best to add the resources you need. Please feel free to use these tools, bookmark this page for future use, and post links to this page for others to use. We are pleased to share these helpful tools with our valued customers and guests. ![]() High Performance starts with math, precise measurements and calculations. Test always done in 2nd gear:Īmbient Barometric Pressure: 30.02 Inches HgĬalculated Relative Horsepower To Rated: 91.8%Ĭalculated Dynamometer Correction Factor: 1.09įrom Aeroforce: 28.53 lb per min (MAF) 6900-7000 RPMĢ8.53 lb per min x 10 BHP per lb per min = 285.3 BHP (uncorrected)Ģ85.3 x 1.09 (correction factor) = 311 BHP (corrected)ģ11 BHP x 0.85 (drivetrain loss is 15%) = 264 WHP.Free Horsepower Calculator Compression Ratio Calculator Race Math Formulas and Racing Math Resources So now I still see up to 0.2-0.4 PSI of vacuum (pre-supercharger) from mid-range to WOT. Yesterday I had reset the PCM by disconnecting the negative terminal of the battery for about 2 hours. Here is the first test done this morning (10:30 AM) with the Weapon-R looks like not much changed since the other tests with previous drop-in filter. I knew your corrected numbers would be higher than mine. These results are very close to what I dyno'd last year. Here are my results with Race Gas/High Octane Mode:Īmbient Barometric Pressure: 29.93 Inches HgĬalculated Relative Horsepower To Rated: 99.8%Ĭalculated Dynometer Correction Factor: 1.002įrom Aeroforce: 36.14 lb per min (MAF) 6970-7250 RPM (Rev limiter set at 7250 RPM, shift point is 7000 RPM)ģ6.14 lb per min / 0.108 = 334.6296 BHP (uncorrected)ģ34.6296 x 1.002 (correction factor) = 335.2989 BHP (corrected)ģ35.2989 BHP x 0.85 (drivetrain loss is 15%) = 285.004 SAE WHPįuel octane rating: Sunoco 260GT100 (CAM2) High Octane Mode My mph puts me around 270-280ish horsepower (270-280ish is right around what I dyno'd last year). With a shitty 2.334 60' time I ran the following:ĩ.1 in the 1/8th mile, but it was at 85 mph, andĮlevation was 1350', humidity was 30%, and pressure was 28.5 I took my car out on the turnpike Monday, and ran it through the gears with my properly calibrated Gtech Pro RR. I'm starting to like using trap speed to determine power. On cooler days (low 50's - low 60's) I have logged 36.41 lbs/min. On normal warm days (mid 60's - mid 70's) my cars flows 35.03 lbs/min. It will only be in the 50's today so I'm interested to see what my car will be flowing. I will be running some more tests this afternoon after work. I tend not to use it, because it isn't very accurate. My interceptor has almost always showed the same horsepower readings no matter what mods I've done to the car. In regards for the question for the Interceptor HP, I would be curious to know from which sensor it is extrapolated, but I do not have this feature on my older model Interceptor.The interceptor takes its horsepower reading from the MAF sensor. Again all of this is theoritical, but ambiant air is affected by barometric pressure and temperature in the same way for both applications. per HP) which does differs for boosted applications and normally aspirated applications. The key is by using the right multiplication variable (lb per min. Knock retard starting at 0.3 degrees from 6271RPM up to 2-3 degrees at cut-off Injector: 13.2ms 6918 RPM (76.1% calculated duty cycle)Ġ2 sensor voltage: 910 mv (commanded 12.0:1 AFR with HP Tuners) Other data as recorded on the Aeroforce Interceptor: ![]() Here is an example for my car (2005 SS-SC, 2.9" pulley, K&N filter, 42# injectors, shorty header, stock DP, 2.5" custom catback) for this very afternoon in Canmore, AB at around 2:00 PM, some data logged on the Aeroforce Interceptor (MAF lb per min) and other data from the Weather Network or from driver information center (air temp).Īmbient Barometric Pressure: 29.88 Inches HgĬalculated Relative Horsepower To Rated: 86%Ĭalculated Dynamometer Correction Factor: 1.163įrom Aeroforce: 26.65 lb per min (MAF) 6918 RPM (cut-off set at 6900 RPM)Ģ6.65 lb per min x 10 BHP per lb per min = 266.5 BHP (uncorrected)Ģ66.5 x 1.163 (correction factor) = 310 BHP (corrected)ģ10 BHP x 0.85 (drivetrain loss is 15%) = 263 WHP. The calculator shows you how much the air conditions on any given day will alter the horsepower of a normally aspirated internal combustion engine." The calculations are derived from public domain information, SAE J1349 Revision, June of 1990. "This Relative Horsepower Calculator determines the relative torque and horsepower available at any temperature, barometric pressure, humidity, and altitude.
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