Engine Configuration |
65 degree V4, 4-Stroke |
Engine Displacement |
999.6 cc |
Engine Cooling |
Liquid |
Compression Ratio |
13.0:1 |
Combustion Chamber Design |
Pentroof |
Valves Per Cylinder |
4 |
Intake Valves Per Cylinder |
2 (Titanium) |
Exhaust Valves Per Cylinder |
2 (Steel) |
Bore x Stroke |
78 mm x 52.3 mm |
Conecting Rod Length
(center-to-center) |
112.0 mm |
Connecting Rod Material |
Steel |
Measured Peak Horsepower |
161.61 bhp @ 12,700 rpm |
Measured Peak Torque |
76.97 lbs. - ft. @ 9,700
rpm |
Measured Horsepower-to-weight Ratio |
2.85 pounds per horsepower |
Engine Redline |
14, 100 rpm |
Valve Angle (Included) |
10 degrees Intake/
12 degrees Exhaust (22 degrees) |
Combustion Chamber Volume |
21.2 cc |
Valve Train Type |
DOHC, Link-plate Chain/Gear Drive, Bucket Followers, Shim-under-bucket Lash Adjustment |
Valve Adjustment Interval |
12,400 miles |
Intake Valve Diameter |
32.0 mm |
Exhaust Valve Diameter |
26.0 mm |
Intake Valve Stem
Diameter |
6.0 mm |
Exhaust Valve Stem Diameter |
6.0 mm |
Intake Valve Maximum
Lift |
10.2 mm |
Exhaust Valve Maximum
Lift |
8.1 mm |
Intake Valve Timing |
|
Open BTDC |
12 degrees |
Close ABDC |
48 degrees |
Duration |
240 degrees |
Exhaust Valve Timing |
|
Open BTDC |
48 degrees |
Close ABDC |
10 degrees |
Duration |
238 degrees |
Valve Timing Measuring
Point |
1.0 mm (lift)
|
Fuel Delivery System |
Weber-Marelli Fuel Injection |
Throttle Body Venturi
Size |
48 mm |
Air Filter Type |
Pleated Paper |
Exhaust System Type |
4-2-1 (Stainless Steel) |
Ignition System |
Digital |
Lubrication System |
Wet Sump |
Oil Capacity |
4.2 quarts (4.0 liters) |
Fuel Capacity |
4.5 gallons (17 liters) |
Transmission Type |
6-speed, Constant Mesh, Cassette-type |
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 |
9 |
Driven Plates |
10 |
Primary Drive |
Gear (Straight-cut) |
Primary Drive Gear Teeth (Ratio) |
44/73 (1.659:1) |
Final Drive Sprocket Teeth
(Ratio) |
40/16 (2.500:1) |
Transmission Gear Teeth (Ratios) |
|
6th |
33/27 (1.222:1) |
5th |
34/26 (1.308:1) |
4th |
32/22 (1.455:1) |
3rd |
34/20 (1.700:1) |
2nd |
33/16 (2.061:1) |
1st |
39/15 (2.600:1) |
Transmission Overall
Ratios |
|
6th |
5.068:1 |
5th |
5.425:1 |
4th |
6.035:1 |
3rd |
7.051:1 |
2nd |
8.548:1 |
1st |
10.784:1 |
|
|