PowerPages: Honda B16 Engine

Dyno 3: Skunk2 Pro 2+ Camshafts

Pros
After we installed Skunk2's newest Pro 2+ camshafts, the engine awoke from its slumber and belched out an amazing and consistent 32-hp gain over the factory B16 camshafts from 7500 to 7700 rpm. Throughout the power band we saw typical gains of 15 to 30 hp. We also saw peak torque gains of 11 lb-ft over stock, topping at 178 ft-lb.

Cons
The engine labored to hit the 8000-rpm red line, because the factory cylinder head limited the engine's power potential.

Notes
Here's how Skunk2's new cams compare to their predecessor:Skunk2 Pro 2+ cam profile:
262-degree intake at 0.050-inch degree and 0.503-inch lift
264-degree exhaust at 0.050-inch degree and 0.472-inch lift

Skunk2 Stage II cam profile
268-degree intake at 0.050-inch degree and 0.488-inch lift
264-degree exhaust at 0.050-inch degree and 0.468-inch lift

Tools
10-, 12-, 14- and 19mm sockets; torque wrench; 12mm wrench; timing gun; valve lash tool

Parts
Camshafts, stickers

Installation time
90 minutes

Temperature
Air temperature at 82 degrees Fahrenheit
Temperature difference from previous run: +1 degree Fahrenheit

2000 to 3500 HP range: 0 to 9
3500 to 5500 HP range: 9 to 27
5500 to red line HP range: 27 to 32

2000 to 3500 TQ range: 0 to 13
3500 to 55 00 TQ range: 13 to 17
5500 to red line TQ range: 17 to 16

Peak HP: 244
Peak TQ:178

By Richard Fong

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