Originally Posted by 330CIZHP
I am not sure, but the altitude could be a factor. Do remember Calgary is 2700 ft above sea level.
Another thing 'PencilGeek' mentioned in his dyno articles was airflow. If the S65 does not get proper airflow through fans, it cuts back power a lot.
My guess seeing other similarly modded M3s to be around 380 - 390 wheel hp.
The numbers surprised me.
I am going to try again at another shop.
Does anyone know anyone else that has a dyno in Calgary?