Home Harley Davidson 2012 Harley-Davidson Twin Cam 103 V-Twin Engine Review

2012 Harley-Davidson Twin Cam 103 V-Twin Engine Review

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2012 Harley-Davidson Twin Cam 103 V-Twin Engine

In 2012 Harley-Davidson released many type of Motorcyces with Twin Cam 103 V-Twin Engine.Twin Cam 103™ engine with 103-cid (1690cc), rubber-mounted within the frame, is rated at 100 ft. lbs. of torque at 3500 RPM. The engine is equipped with Electronic Sequential Port Fuel Injection (ESPFI) and is mated to a 6-speed Cruise Drive® transmission.

Highlights of the 2012 Harley-Davidson line include:

The Twin Cam 103™ engine powers all 2012 Dyna®, Softail® and Touring models with the exception of the Dyna Street Bob® and Dyna Super Glide® Custom. This engine produces up to 100 ft lbs. peak torque, an increase of approximately 6 percent over the Twin Cam 96 engine it replaces as standard power for many of these models. The Twin Cam 103 is equipped with automatic compression release. It features identifying badges on the derby cover, timer cover and air cleaner trim ring. in one.

All Harley-Davidson Softail models get the performance boost of the Twin Cam 103 engine for 2012. The Fat Boy and Fat Boy Lo have a new reduced-reach handlebar for more-comfortable ergonomics. A lower, narrower seat shape places the Fat Boy rider in a new “in the bike” position. The Softail Deluxe and Heritage Softail Classic will be available with a new optional “tubeless” Chrome Aluminum Profile Laced wheel option for ease of tire replacement and repair.

2012 Harley-Davidson Twin Cam 103 V-Twin Engine Specications

Ground Clearance 4.3 in. (110 mm)
Rake (steering head) 29.9°
Fork Angle 28.9°
Trail 5.84 in. (148.3 mm)
Wheelbase 62.8 in. (1595 mm)
Tires (Dunlop® Harley-Davidson® Series, bias blackwall front and rear):
– Front – Dunlop® D402F 130/70B18 63H
– Rear – Dunlop® D401 160/70B17 73H
Fuel Capacity 4.7 gal. (17.8 L) (warning light at approximately 0.9 gal.)
Oil Capacity (w/filter) 3.0 qts. (2.8 L)
Transmission Capacity 1.0 qt. (.95 L)
Primary Chain
Case Capacity 1.0 qt. (.95 L)

Engine
Engine Air-cooled, Twin Cam 103™
Valves Pushrod-operated, overhead valves with hydraulic, self adjusting lifters; two valves per cylinder
Bore x Stroke 3.875 in. x 4.38 in. (98.4 mm x 111.3 mm)
Displacement 103 cu. in. (1690 cc)
Compression Ratio 9.6:1
Fuel System3 Electronic Sequential Port Fuel Injection (ESPFI)
Air Cleaner Fiberglass media, washable
Lubrication System Pressurized, dry-sump

Drivetrain
Primary Drive Chain, 34/46 ratio
Final Drive Belt, 32/66 ratio
Clutch Multi-plate, wet
Transmission 6-Speed Cruise Drive®
Gear Ratios (overall): U.S.
– 1st 9.311
– 2nd 6.454
– 3rd 4.793
– 4th 3.882
– 5th 3.307
– 6th 2.79

Performance
Engine Torque5 (per J1349):
– North America 100 ft. lbs. @ 3500 RPM (136 Nm @ 3500 RPM)
Lean Angle (per J1168):
– Right 29°
– Left 29°
Fuel Economy6 (EPA urban/highway test) 42 mpg (5.6 L/100 km)

2012 Harley-Davidson Twin Cam 103 V-Twin Engine Review

Gallery 2012 Harley-Davidson Twin Cam 103 V-Twin Engine Review