10/23/2010 - Dyno runs at Sick Speed Performance

Approx. 64k miles. 60 degrees outside. Mods:

Best pull was 288 hp and 241 tq SAE corrected.  Uncorrected numbers were 297 hp and 248 tq.

CSL wheels.
dyno'ed in 5th gear.
used a 48 inch fan in front of car.
dynojet 224x

 

Plastic cover removed and RPM signal pickup attached to the first coil:

The best pull:

All 3 pulls overlayed:
Pull 1 - Air scoops installed. 284 hp & 236 TQ
Pull 2 - Air scoops removed. 288 hp & 241 TQ
Pull 3 - Air scoops re-installed. 286 hp & 242 TQ

Followed these directions from M3forum:

1) Start Car (Hood did NOT need to be closed on 6MT, will need to be closed on SMG or sensors bypassed)
2) Shut off DSC (nothing special, we did just a 2 second push)
3) Drive car thru first few gears up to ~4k RPMs (we went all the way to 4th)
4) Put car in neutral, shut car off, ONLY TURN KEY ONE POSITION BACK TO ACC NOT ALL THE WAY OFF
5) Immediately restart car while rear wheels still spinning
6) Release clutch, shift to preferred gear for dyno pull (we used both 4th and 5th)
7) Let motor spin down to preferred run start RPM
8) Perform pull

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