rtfm
Well-Known Member
Hi,
Jim was asking about the Honda in-line four. I found this... I have only one issue with these bike engines, however. They rev too high. 13000 is WAY too much. At least the BMW R1200 delivers its 122hp at 6000 rpm. That's manageable. Even the highly regarded Yamaha Extreme which the rotary guys are raving about screams along at 8000rpm. It SOUNDS great, but I wouldn't fancy sitting behind it flying over the Cook Straits, for example. It is just too BUSY...
Duncan
From a recent write-up of the engine:
The CBR1000RR is powered by an all new 999 cc (60.9 cu in) inline-four engine with a redline of 13,000 rpm. It features titanium valves and an enlarged bore with a corresponding reduced stroke. The engine has a completely new cyinder block, head configuration, and crankcase with lighter pistons. A new ECU delivers two separate revised maps sending the fuel and air mixture to be squeezed tight by the 12.3:1 compression ratio. Ram air is fed to an enlarged air box through two revised front scoops located under the headlamps. Honda claims power output to be at least 178 hp (133 kW) beginning at 12,000 rpm
Jim was asking about the Honda in-line four. I found this... I have only one issue with these bike engines, however. They rev too high. 13000 is WAY too much. At least the BMW R1200 delivers its 122hp at 6000 rpm. That's manageable. Even the highly regarded Yamaha Extreme which the rotary guys are raving about screams along at 8000rpm. It SOUNDS great, but I wouldn't fancy sitting behind it flying over the Cook Straits, for example. It is just too BUSY...
Duncan
From a recent write-up of the engine:
The CBR1000RR is powered by an all new 999 cc (60.9 cu in) inline-four engine with a redline of 13,000 rpm. It features titanium valves and an enlarged bore with a corresponding reduced stroke. The engine has a completely new cyinder block, head configuration, and crankcase with lighter pistons. A new ECU delivers two separate revised maps sending the fuel and air mixture to be squeezed tight by the 12.3:1 compression ratio. Ram air is fed to an enlarged air box through two revised front scoops located under the headlamps. Honda claims power output to be at least 178 hp (133 kW) beginning at 12,000 rpm
