A8 dyno conversion factor
Thread Starter
Pro
Joined: Jan 2013
Posts: 567
Likes: 28
From: Arizona
A8 dyno conversion factor
What is a reasonable factor for converting C7 A8 rwtq from a DynoJet to torque at the flywheel?
Want to get to 500 flywheel torque with an air filter or CAI, ported stock exhaust manifolds or ARH mid-length headers with cats, intermediate pipe (eliminating stock secondary cats), and a tune (currently have Trifecta and would stay with them).
Want to get to 500 flywheel torque with an air filter or CAI, ported stock exhaust manifolds or ARH mid-length headers with cats, intermediate pipe (eliminating stock secondary cats), and a tune (currently have Trifecta and would stay with them).
Race Director
Joined: Jul 2007
Posts: 10,961
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From: Texas Hill Country
depends on the dyno type, the location, the air/weather, and the dyno operator.
The A6 is in the 17-20% range
The A8 is in the 14-17% range
The M7 is in the 11-15% range
Of course, it also depends on the rear gear ratio, tire/wheel weight, tire pressure, etc etc. There are so many variables it's better to just get a baseline, do your mods, dyno again, measure the difference, and use the same loss % to back calculate from 460 HP and get a new number.
You need a baseline.
The A6 is in the 17-20% range
The A8 is in the 14-17% range
The M7 is in the 11-15% range
Of course, it also depends on the rear gear ratio, tire/wheel weight, tire pressure, etc etc. There are so many variables it's better to just get a baseline, do your mods, dyno again, measure the difference, and use the same loss % to back calculate from 460 HP and get a new number.
You need a baseline.
