| Engine Configuration |
Inline-Four, 4 stroke, |
| Engine Displacement |
999 cc |
| Engine Cooling |
Liquid |
| Compression Ratio |
13.7- 13.9:1 |
| Combustion Chamber Design |
Pentroof |
| Valves Per Cylinder |
4 |
| Intake Valves Per Cylinder |
2 (titanium) |
| Exhaust Valves Per Cylinder |
2 (titanium) |
| Bore x Stroke |
80.0 mm x 49.7 mm |
Conecting Rod Length
(center-to-center) |
103.0mm |
| Connecting Rod Material |
Steel |
| Claimed Peak Horsepower |
215 bhp @ 13,900 rpm |
| Claimed Peak Torque |
88.5 lbs. - ft. @ 10,000
rpm |
| Engine Redline |
14,500 rpm |
| Valve Angle (Included) |
11.2 degrees Intake/ 13.3 degrees Exhaust (24.5 degrees) |
| Combustion Chamber Volume |
19.5cc |
| Valve Train Type |
DOHC, Reduction gear and Link-plate Chain, Finger Followers, Shim-in-retainer Lash Adjustment |
| Valve Adjustment Interval |
|
| Intake Valve Diameter |
33.5 mm |
| Exhaust Valve Diameter |
27.2 mm |
| Intake Valve Stem
Diameter |
5.0mm |
| Exhaust Valve Stem Diameter |
5.0mm |
| Intake Valve Maximum
Lift |
|
| Exhaust Valve Maximum
Lift |
|
| Intake Valve Timing |
|
| Open BTDC |
|
| Close ABDC |
|
| Duration |
|
| Exhaust Valve Timing |
|
| Open BTDC |
|
| Close ABDC |
|
| Duration |
|
| Valve Timing Measuring
Point |
3.0mm (lift)
|
| Fuel Delivery System |
BMW BMS-K-P Digital Fuel Injection |
| Throttle Body Venturi
Size |
48 mm |
| Air Filter Type |
Pleated Paper |
| Exhaust System Type |
4-1-2 (Titanium) |
| Ignition System |
Digital |
| Lubrication System |
Wet Sump |
| Oil Capacity |
4.1 quarts (3.9 liters) |
| Fuel Capacity |
4.6 gallons (17.5 liters) |
| Transmission Type |
6-speed, Constant Mesh |
| Clutch Type |
Multi-plate, Wet, Back-torque-limiting |
| Clutch Actuation System |
Cable |
| Clutch Spring Type |
Coil |
| Number Of Clutch Springs |
6 |
| Number of Clutch Plates |
19 |
| Drive Plates |
10 |
| Driven Plates |
9 |
| Primary Drive |
Gear (straight cut) |
| Primary Drive Gear Teeth (Ratio) |
76/46 (1.652:1) |
| Final Drive Sprocket Teeth
(Ratio) |
3/16 (2.687:1) |
| Transmission Gear Teeth (Ratios) |
|
| 6th |
31/24 (1.291:1) |
| 5th |
35/25 (1.400:1) |
| 4th |
34/22 (1.545:1) |
| 3rd |
38/22 (1.727:1) |
| 2nd |
44/22 (2.000:1) |
| 1st |
43/18 (2.388:1) |
| Transmission Overall
Ratios |
|
| 6th |
5.730:1 |
| 5th |
6.214:1 |
| 4th |
6.858:1 |
| 3rd |
7666:1 |
| 2nd |
8.877:1 |
| 1st |
10.600:1 |
|
|
