986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Finally: Dyno charts of de-snorked 986S!!!

Bisimoto · 02-23-2007, 06:12 AM

Greetings Jim,
I do not want to turn this into a debate, but honestly, feel free to perform the results yourself. Voltage will not skew results even within 8to 14.4volts since modern day EMS/ECU units have compensation values integrated into their programs. The $25K, or more, intertia dynos CANNOT replicate the sensitivity or repeatability of the hub chassis dyno simply because of the varibles introduced by the tyre, and the tyre interface...both of these in addition to how those dynos measure power. Even very slight changes in room temperation can affect the tyre growth and skew results. Straps introduce even more questionable readings the aformentioned units.

Bottom line, everyone is entitled to their opinion, but opinions can further become validated with data. Have a pleasant balance of the week.

02-23-2007, 06:12 AM	#45
Bisimoto Registered User Join Date: Jan 2007 Location: Hacienda Heights, Ca Posts: 75	Greetings Jim, I do not want to turn this into a debate, but honestly, feel free to perform the results yourself. Voltage will not skew results even within 8to 14.4volts since modern day EMS/ECU units have compensation values integrated into their programs. The $25K, or more, intertia dynos CANNOT replicate the sensitivity or repeatability of the hub chassis dyno simply because of the varibles introduced by the tyre, and the tyre interface...both of these in addition to how those dynos measure power. Even very slight changes in room temperation can affect the tyre growth and skew results. Straps introduce even more questionable readings the aformentioned units. Bottom line, everyone is entitled to their opinion, but opinions can further become validated with data. Have a pleasant balance of the week. __________________ Bisimoto Engineering 2001 modified Boxster S, slate grey, red interior