740 crank HP - 560 AWHP 2007 GMC Yukon Denali Dyno Tune Whipple 2.3L Supercharger BTR Stage 2 Cam

Most recent build (cam, pistons, bearings, machining, all gaskets) was done at https://rpmmotorsportsnc.com/. Supercharger, headers and exhaust have been on truck for many years.

Since this is all time AWD, finding a dyno was challenging. National Speed in Richmond was the closest I could find to the Raleigh NC Area. https://nationalspeedinc.com/ They were able to get an additional 50hp at the wheels which equates to about 67hp at the crank during this tuning session.

The GM 6L80 with BW4485 Transfer Case consumes about 25% of the HP on the way to the wheels. I have seen a few people switch this to another transfer case to go rear only, but launch in AWD in an incredible advantage and I plan to keep it AWD.

2007 GMC Yukon Denali

740 crank horsepower - 560 all wheel horsepower

Whipple 2.3L Supercharger with 3.625 pulley
BTR Stage 2 Cam
Extreme 9000 Ceramic Boot - Spark Plugs
NGK TR6 plugs gapped to 0.028"
Circle D 265mm Pro Triple Clutch Torque Converter
B&M 70392 Deep Cast Aluminum Transmission Pan
Kooks long tube headers and Y Pipe
Corsa Cat Back
MSD Fuel Pump
Forged Pistons