LFX vs bike performance

[littlefielc]

Interesting to compare car and bike performance.
LFX - 323 hp@6800, 278 ft-lb@4800, 3.7 bore x 3.37 stroke, 3.6 liters
Triumph Tiger 1050 (in-line triple) - 111 hp@9400, 72 ft-lb@6800, 3.1 bore, 2.8 stroke, 1.05 liter
The Tiger is not a particularly high performance bike. It's noted for it's broad torque curve and runs a high piston velocity so it's at he limit of stroke/speed.

Specific power - LFX - 90hp/liter, 77 ft-lb/liter
Tiger - 106 hp/liter, 69 ft-lb/liter

Notice the Triumph torque curve, really nice an flat. That's pretty typical for bikes, not sure how they get the volumetric efficiency to stay that constant. Engine packaging options are different for bikes. There is almost always a dedicated throttle body/cylinder with a straight shot into the cylinder, tubular exhaust.
The Tiger weighs about 500 lb so with a 200 lb rider that's 6.3 lb/hp.
At the LT 3728 weight with 200 lb driver that's 12.1 lb/hp.
And with a high performance bike such as the BMW S1000RR the numbers are staggering., close to 200 crank hp, 83 ft-lb with 1 liter. Weighs around 450 lb. And a 16 year can go in a buy one.
Well, I just searched a close to stock V6 dyno run and I'm surprised how the flat the torque curve is. Nice variable valve timing. The big Ducati V twins are the only motorcycle engine I'm aware of using VVT.
Anyway, pretty interesting stuff.