dubes12

APR did the dyno on a stock 2010 s4... 330 horse at the wheels... 15%-20% more crank...
Here's the link.

http://www.quattroworld.com/blog/apr...stock-2010-s4/

riegerman

That is using a hub dyno. I think a wheel dyno will not yield the same numbers and I think those numbers are SAE adjusted. Most people have been dynoing around 290whp not SAE adjusted.

NWS4Guy

Dyno complete, I'll post up the graphs, pics and video soon. Here are the numbers, all were 4th gear pulls, DSG transmission, ESP/ASR off, ASD button on Auto, 67 degree ambient temp.

Run 1:
Max WHP - 274
Max TQ (lb-ft) - 285

Run 2:
Max WHP - 276
Max TQ (lb-ft) - 286

Pretty good pulls to be so close together. The car has 5600 miles on it, and had the 5K service already, no mods done, bone stock.

dubes12

Based on this info Audi is over reporting its HP and Torque... all consensus is that they are under reporting. Doesn't make sense... with the wheel hp your reporting the crank would be 313ish and the torque is significantly less than 325 lbs. opposite of consensus and driving experience of the car..

primetime

276/333 = .8288
286/333 = .8588

This is about right given the drivetrain loss.... remember this is a DSG car also.... Not sure what doesn't make sense....

Thanks for sharing NWSguy, looking forward to the graphs... later Ron

Muray

I thought hp would be higher than torque.

NWS4Guy

One would think so based on the data.

Here are pics to occupy you - the HD video has been transcoded for both pulls and is uploading to Youtube now.

Graphs are in PDF format and will upload as well soon, though due to the color ink, the HP is hard to see (light blue on white paper).

**** EDIT ****

Here is the link to the Dyno sheets:
http://www.youshare.com/NWS4Guy/a72642/DisplaySimple

NWS4Guy

Dyno pull videos are still processing on Youtube I will edit when they are done

Pull 1:

http://www.youtube.com/watch?v=jmM22L7N6Kg


Pull 2:

http://www.youtube.com/watch?v=jb3hCtwHZRo

m444

That 276WHP & 286WTQ reading seems about right for the stock flywheel rating of 333HP.

My C32 MB when stock, had 280RWHP & 280RWTQ, the stock MB rating was 349HP. After headers, intake, pulley and Renntech tune, it had 340RWHP.

I would expect the S4 to eventually get to at least 340WHP, after some careful tuning.

NWS4Guy

I can hope so, the vids have been fully processed on the YouTube side, feel free to check them out in full 1080p glory