Visited the chassis dyno today...same facility/operator as pre-supercharger. It appears to be a quality facility using a French dyno with a full hurricane force wind blower - quite loud and powerful!
Obviously their numbers are not the typical US HP/wheel or crank, but PS and NM units.
Best run previously with no blower was 375 WHP...now 540 WHP. Backing into the factory engine rated power rating of 455, equates to 655 CHP and 656 CTQ. Likely pretty accurate as the tune is likely on the conservative side with octane appearing to be the limiting factor.
Couple of notes on the dyno sheet - they didn't use the best of each visit's runs. No idea why. Secondly, they don't do a tach pickup...they try to match wheel speed and indicated RPM to the dyno...the result is errors for whatever reason. All runs were over 6500 rpm. They also use an odd correction factor to provide an at the engine number - seems excessive so I only see the wheel power as being legitimate/understandable. Admittedly the nearly 900 NM's seems rather impressive!
Bottomline - happy with the result - it pulled nicely to 160 mph on a busy autobahn on the way home - scared my passenger a bit I think (his previous max was 125 mph). ;-)
All four runs are listed below...still slight discrepancies with the chart, but nonetheless. Also noted are some inconsistencies in the runs at top rpm...I will have to cross check the logs.
