Originally Posted by BMW-M-Mexico
Here are the answers:
Loss factor: 14%
Ambient temperature: 21°C
Pressure: 1024 mb
Runs made on the same dyno the same day.
Thanks for the answers.
At 14% loss, that would indicate the following:
361 whp Stock
401 whp Modded
Since you said they are already corrected for the conditions below, the weather info is irrelevant. You're seeing about 10% gain at the wheels, and you'll feel that.
Finally, do you know what kind of dyno was used? Dynojet?