View Single Post
      08-16-2011, 03:00 AM   #27
swamp2
Lieutenant General
swamp2's Avatar
United_States
611
Rep
10,407
Posts

Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

iTrader: (3)

Quote:
Originally Posted by tom @ eas View Post
Rapture's car simply kept making power dyno pull after dyno pull once the S2 was installed.
Call me a skeptic, but that is one of my jobs around here... This sounds like a systematic error rather than power gains...

1. Either the engine adapts immediately to the mods or doesn't.
2. If it does it should not continue to make more power each run. Thus the conclusion is bad dyno results.
3. If it doesn't then you could only see this if it adapted very quickly.

As is typical - there are many ways to spin dyno data. It is often as good as we want it to be when the levels are basically in the noise. We would not be having the discussion (well... unfortunately we probably would be..) if the claimed gains from another modification, say modification "X", were dyno proven to be 2-3 hp.
__________________
E92 M3 | Space Gray on Fox Red | M-DCT | CF Roof | RAC RG63 Wheels | Brembo 380mm BBK |
| Vorsteiner Ti Exhaust | Matte Black Grilles/Side Gills/Rear Emblem/Mirrors |
| Alekshop Back up Camera | GP Thunders | BMW Aluminum Pedals | Elite Angels |
| XPEL Full Front Wrap | Hardwired V1 | Interior Xenon Light Kit |
Appreciate 0