[PencilGeek]

Here's the dyno results for 2008 BMW M3 and Evo Sport Power Pulley on 91 octane gas.

The Dyno: Dynapack 4000 Chassis Dyno (wheel hub attachment).
RPM Range: 2000-8400
Max Torque: 268.5 ft/lbs @ @ 4022 RPM (Run-3)
Max HP: 366 @ 8148 RPM (Run-3) - +7hp Gain
Other graphs: Run-1, Run-2, Run-3

Instructions for downloading and viewing the raw data:
See instructions below.


Evo Sport Power Pully


Stock baseline vs. Evo Sport Power Pulley

YouTube video:
Dyno Run 366 hp

Notes:
* Ramp time: 2.5 seconds per 1000 RPMs.
* Gear Ratio: 3rd gear.
* Fuel: 91 Octane Unleaded (R+M/2)
* Traction Control: Disabled
* Onboard electronics and running lights: Disabled
* Air Conditioner: Disabled

Instructions for downloading and viewing the raw dyno data.
* Download and install the dyno data viewer.
* Download PencilGeek's dyno data file here.
* Run the Dynapack Viewer.
* Press <F8> (Folders). I don't think the function keys actually work here, so place the mouse over the <F8> key on the screen and left click.
* Press the "Import Files" button.
* Locate the file you downloaded and saved on your computer. Highlight it, and click "Add" then "OK"
* Select the "Vehicle Folder" on the left of your screen where you just imported the dyno results. On my system, it was in my TEMP directory, so the folder name is "TEMP"
* Double Click on "PencilGeekDyno-2008-05-08." When the "Load Data" dialog box is displayed, select "Source"
* When promted to overwrite the current vehicle setup, select "YES"
* When the dyno chart is first displayed, you'll want to change a few settings (if they are not already set). Select Setup->System. Look under the "Power Correction Standard." Change the Standard to "SAE (adapted)" setting.
* In the "Units" area, select your preferred HP/TQ, PS/KW/NM settings -- according to how prefer to view this data.
* Makes sure the "Correct Torque with Power Correction" checkbox is checked (bottom right of screen)
* Press F10 -- OK
* Change the display: Display->Flywheel Torque Graph.
* Look at the various other display graphs as well.
-- Temperature Graph
-- Statistics
-- View Data. You can add/delete data columns on this display. You can also look at the individual data for each dyno run by changing the "Data source. You can also export the data from this screen into a spreadsheet.
* Play with the software and you'll probably prefer it to a spreadsheet.
* Export the data if you wish into a spreadsheet, and make your own graphs.

To compare dyno charts using the Dynapack viewer:
* Follow all of the instructions above to load the dynapack data file.
* Download the 91 octane baseline data file. Save it in the same location as above.
* Click Display->Status & Relative Graphs (or press the 'Home' key on your keyboard)
* Press <F8> (Folders). I don't think the function keys actually work here, so place the mouse over the <F8> key on the screen and left click.
* Press the "Import Files" button.
* Locate the file you downloaded and saved on your computer. Highlight it, and click "Add" then "OK"
* Select the "Vehicle Folder" on the left of your screen where you just imported the dyno results. On my system, it was in my TEMP directory, so the folder name is "TEMP"
* Double Click on "PencilGeekDyno-2008-08-16, 91 Octane Baseline." When the "Load Data" dialog box is displayed, select "Comparison"
* When promted to overwrite the current vehicle setup, select "NO"
* Continue following the instructions above for viewing the dyno data.

[gojcaj]

I'm sure everyone can appreciate information as detailed as this. Thanks.

[Ersin]

Thanks. I like the low end torque increase. I bet that that can be felt.

[JakeM3]

cool, how much does that run?

[duk]

wow buncha low end tq niceee

[ModBargains]

great job on the low end tq increase! very nice.

[D-Dot]

what was the baselin hp of the m3 . do u think this mod is worth it vs other pulley manufacturers? and is it only a 7hp gain ur saying vs their posted 21hp gain???

[SpeedLimit?]

is the mod noticable?