Car and Modifications:

• 2009 BMW M3
• ESS VT1-535 Supercharger
• 6MT
• Akrapovic Evolution Exhaust
• 91 Octane

Conditions:

• Temparature:: 74.58 degrees F
• Atmospheric pressure: 30.20 inHg
• Humidity: 27%
• SAE Correction: 0.97
• STD Correction: 1.00
• Uncorrected: 1.00

Results:

• SAE Corrected: 472whp @ 8325 RPM, 310wtq @ 7450 RPM. 5.80 PSI
• STD Corrected: 485whp, 319wtq
• Uncorrected: 487whp, 320wtq

Dyno Database:

• Dyno files are available from the links below.
• SAE Correction, SAE Baseline
• STD Correction, STD Baseline
• Uncorrected

Dyno Testing Procedures:

After warming up the vehicle, we ran the dyno and let the car cool down one minute between runs.  At the end of three runs, we turned off the motor, let the engine cool for ten minutes, then repeat the same testing procedure for three more runs.  The next three runs were done 20 seconds apart.  Therefore the last four runs were all done 20 seconds apart, and constituted our "heat soak" test.

All of the dyno runs are filmed in HiDef video to document the authenticity and independence of the tests.  A Kestral 4500 portable weather station is brought to take independent weather measurements.  This provides a cross-check for the dyno weather station to ensure that the dyno weather station is reading accurately and has not been tampered or altered in any way.

Individual Dyno Results:

Individual dyno results are shown below.  SAE corrected results are shown twice, using two different sources.  The first source (djc) are the SAE corrected results straight from the Dynojet.  The second source (sae) of SAE corrected results are obtained by using the Kestral 4500 weather station data for each individual dyno run and running it through an independent SAE correction formula.  This ensures that the dyno results are accurate and can be independently audited and verified for authenticity and accuracy.

The legend below has the following meaning:

• Dyno Run:  Dyno run file
• Boost Avg:  Boost calculated using trend line.  This is the "official" boost for this dyno run.
• Boost Peak:  Peak boost observed on this dyno run.
• Temp(F) = Temperature (Farenheit)
• RelH = Relative Humidity
• Pressure(Hg) = Barometric Pressure
• DA(ft) = Density Altitude
• WHP(unc) = Uncorrected wheel horsepower
• WTQ(unc) = Uncorrected wheel torque
• WHP(djc) = Dynojet SAE corrected wheel horsepower (SAE-1340 PRE-2004)
• WTQ(djc) = Dynojet corrected wheel torque (SAE-1349 PRE-2004)
• WHP(sae) = SAE-Adapted wheel horsepower (SAE-1349 2004+)
• WTQ(sae) = SAE-Adapted wheel torque (SAE-1349 2004+)

Street Peformance Results

In addition to running dyno tests, I had the opportunity to test the car on Steve Dinan's drag strip.  With the vBox strapped to the car, I ran the car from 0-130 MPH three times in each direction of the road.  All of the odd runs (1, 3, 5) were run in the exact same location in one direction, and all of the even runs were run in the same location in the other direction.  Running 0-130 MPH gives us both 1/4 mile results, and 60-130 MPH results as well.

All of the vBox results were verified by www.perfdb.com.  The 1/4 mile vBox results use the "NHRA Mode" calculations which have been proven to be very accurate when compared to actual drag strip time slip results.