Honda VFR800

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Honda VFR800
The 43rd Tokyo Motor Show 2013 PENTAX K-3 152 (11248370303).jpg
ManufacturerHonda
Also calledInterceptor (since 2002 in the U.S.)
Productionsince 1998
PredecessorVFR750F
ClassSport touring bike
Engine782 cc (47.7 cu in) liquid-cooled 4-stroke 16-valve DOHC V4
Bore / stroke72 mm × 48 mm (2.8 in × 1.9 in)
Compression ratio11.8:1
Transmission6-speed chain drive
Brakes2 × 310 mm (12 in) disc (front)
256 mm (10.1 in) disc (rear)
RelatedCrossrunner
VFR1200F

The Honda VFR800 (Interceptor in the US after 2002) is a sport touring motorcycle made by Honda since 1998.[1] The model was the successor to the VFR750F and shares the V4 engine configuration with the Honda VF and VFR series.

Fifth Generation: 1998–2001 VFR800Fi (RC46)[edit]

5th generation 2000 VFR800Fi

Rather than being a direct development of the previous, carbureted VFR750F engine, the VFR800 engine was a detuned and longer-stroke power plant based on the fuel-injected engine designed for the RC45 of 1994. The RVF750R RC45 engine, although a development of the VFR750R RC30 and originally derived from the VFR750F RC24, was very different from Honda's previous V4s as the gear drive for the camshafts was moved from the centre of the engine to the engine's right-side (next to the clutch-pack)[2]. Another change was the two side-mounted radiators as opposed to just one at the engine front like in the VFR750. The engine was tuned for road use in the VFR800, so that torque was improved throughout the rev range while maximum power was only slightly higher than the VFR750.

The VFR800's frame, which uses the engine as a stressed member, was derived from the VTR1000 Firestorm, retains the trademark VFR single-sided swingarm though, pivoted from the aft of the crankcase. It uses normal 'right-side-up' front forks.

In 2000, Honda updated the fifth-generation VFR (RC46) with a catalytic converter, oxygen sensors, and an EFI system that would enter closed-loop mode under highway (cruising) operation. These also came with a temperature-actuated fast idle system, negating the need for a choke lever. The rear-view mirrors got updated as well, with Honda forgoing the old rubberized stalks, instead going for rustproof metal ones. Bikes supplied for Europe also came with the H.I.S.S. (Honda Ignition Security System)[3] immobiliser system in an effort to combat theft.

Dual combined braking system (DCBS)[edit]

The VFR800 has a DCBS linked braking system. This is a departure from traditional motorcycle braking system where front and rear braking are independent of each other. In this system, the front brake lever applies pressure to four (or later, five) of the six front brake caliper pistons. The rotational movement of the left caliper when engaged actuates a secondary master cylinder and applies pressure to one of the rear caliper's pistons. The rear brake pedal is directly attached to the remaining pistons (two in the rear, and one (or two) in the front).

The DCBS system is designated "Dual" as both hand lever and foot pedal each control both front and rear brakes; while commonly the foot pedal only operates the rear brake. Honda first introduced this braking system on the 1992 Honda CBR1000F. It was based on the Unified Braking System that was introduced on the 1983 GL1100.

Sixth Generation: 2002–2013 VFR800 VTEC (RC46)[edit]

6th generation 2003 VFR800 VTEC

The sixth generation VFR was introduced in 2002. It featured dual underseat exhausts, optional ABS, DCBS linked brakes, and optional hard luggage. It featured chain-driven cams rather than the gear-driven cams of earlier VFRs, and VTEC valve actuation.

The VFR800 was phased out after the 2009 model year in the United States, when Honda introduced the larger VFR1200F;[4] but the VFR1200 was not a direct replacement for the VFR800; the true successor is the 2014 VFR800F (RC79). The RC46 model of VFR800 continues to be sold in certain international markets[citation needed].

VTEC valve actuation[edit]

The VFR800 was the first non-JDM motorcycle to use VTEC valve-gear. Honda used VTEC to meet tightening noise and emissions standards and to increase the peak engine horsepower. Based on the VTEC-E system, the simplified motorcycle version of VTEC employs only two of the four valves per cylinder when operating at lower engine speeds. All four valves per cylinder are engaged above approximately 6,800 rpm. This is initiated by an electronically actuated oil spool valve, which sends oil pressure to the lifter actuators, which then move the engagement pins into place above the valve stem, allowing the remaining two valves to open. This design allows for variable valve timing as well, since the cam lobe profiles can be made different. After much criticism of the abruptness of power transition, Honda lowered the VTEC activation rpm threshold to 6,400 rpm in 2006[5]. The VTEC disengages two cylinder valves when the engine speed drops again below 6,100 rpm.

Seventh Generation: 2009–2017 VFR1200F[edit]

Eighth Generation: 2014-Present VFR800F (RC79)[edit]

A facelifted VFR800 debuted at the 2013 EICMA show in Milan, Italy. The revised model features a new single sided exhaust system, akin to the fifth-generation one, lighter wheels, and additional mass-reduction, lowering the curb weight by 10 kg (22 lb). The new VFR also features traction control, a new instrument panel, and revised aerodynamic bodywork with LED lighting, though the engine and chassis remain largely unchanged from the previous sixth-generation model. Continued from the sixth-generation model is also the 2006 refined version of the VTEC system. The side-mounted heat exchangers were dropped in favour of a single front-mounted unit.[6] The model is sold worldwide. In the US market, it is available in two versions: Standard and Deluxe. The Deluxe version adds ABS, traction control, grip heaters, center stand, and self-canceling turn signals. Outside the US, only the Deluxe version is sold.[7][8]

Comparison[edit]

Model year 5th gen (1998-2001)[citation needed] 6th gen (2002-2013)[citation needed] 8th gen (2014-)[citation needed]
Engine
Engine type 781.7 cc (47.70 cu in) liquid-cooled 4-stroke DOHC 4-valve per cylinder 90° V4
Bore × stroke 72.0 mm × 48.0 mm (2.83 in × 1.89 in)
Compression ratio 11.6:1 11.8:1
Power 107 hp (80 kW) @ 10500 rpm[9]
Torque
Valve train DOHC, four valves per cylinder
Camshaft drive Straight-cut gearing Chain drive, VTEC included
Fuel delivery PGM-FI electronic fuel injection
Ignition Digital
Lubrication Wet sump, SAE 10W-40[10] Wet sump, SAE 10W-30[11]
Drivetrain
Transmission 6-speed w/multi-plate clutch
Final drive #530 O-ring chain #525 O-ring chain
Chassis, suspension, brakes
Front suspension 41 mm Honda Multi-Action System (HMAS) cartridge-style telescopic fork w/preload adjustable damper, 120 mm (4.7 in) travel 41 mm HMAS cartridge-style telescopic fork w/ preload adjustable damper, 100 mm (3.9 in) travel 43 mm HMAS telescopic fork w/ stepless preload and ten DF adjustments, 108 mm (4.3 in) travel
Rear suspension Single-sided swingarm with single spring with rebound-adjustable gas-charged damper, 120 mm (4.7 in) travel Single-sided swingarm with single spring with preload and rebound damping adjustability, 120 mm (4.7 in) travel
Front brakes Dual 296 mm (11.7 in) discs with three-piston calipers Dual 310 mm (12 in) discs with four-piston calipers
Rear brakes Single 256 mm (10.1 in) disc with three-piston caliper Single 256 mm (10.1 in) disc with two-piston caliper
Front tire 120/70ZR-17
Rear tire 180/55ZR-17
Dimensions
Length 2,120 mm (83 in) 2,134 mm (84.0 in)
Width 735 mm (28.9 in) 770 mm (30 in)
Height 1,195 mm (47.0 in) 1,203 mm (47.4 in)
Wheelbase 1,440 mm (57 in) 1,458 mm (57.4 in) 1,460 mm (57 in)
Seat height 805 mm (31.7 in) 789–809 mm (31.1–31.9 in)
Wet weight
Fuel Capacity 20.8 L (4.6 imp gal; 5.5 US gal) 22.0 L (4.8 imp gal; 5.8 US gal) 21.2 L (4.7 imp gal; 5.6 US gal)
Rake 25.5°
Trail 100 mm (3.9 in) 95 mm (3.7 in)

See also[edit]

References[edit]

  1. ^ Timeline Honda VFR
  2. ^ Malinov, Yanko (2018-05-21), English: 2000 Honda VFR800 V4 engine with right crankcase cover and clutch plates removed. The gears driving the engine's camshafts are visible here., retrieved 2019-03-26
  3. ^ "Honda Global | Vol.4 H.I.S.S." global.honda. Retrieved 2019-03-26.
  4. ^ 2009 Honda Motorcycles Released: Lineup includes company firsts and updates to old favorites, Motorcycle.com, October 2, 2008, retrieved 2009-05-20
  5. ^ VisordownWed, 11 Jan 2006. "VFR800 VTEC (2005 - 2013) review". Visordown. Retrieved 2019-03-20.
  6. ^ "2015 Honda VFR800F AC RADIATOR | Babbitts Honda Partshouse". www.hondapartshouse.com. Retrieved 2019-03-20.
  7. ^ Wilson, Byron (3 November 2013). "2014 Honda VFR800F First Look". Motorcycle USA. Retrieved 30 January 2014.
  8. ^ "VFR800F Coming To US As 2014 Honda Interceptor". February 2014. Retrieved 4 February 2014.
  9. ^ "HONDA VFR800 VTEC (2001-2012) Review". Motorcycle News. 2006-11-23. Retrieved 2019-03-22.
  10. ^ "Parts & Specifications: HONDA VFR 800 FI | Louis Motorcycle & Leisure". www.louis.eu. Retrieved 2019-03-22.
  11. ^ "Parts & Specifications: HONDA VFR 800 F | Louis Motorcycle & Leisure". www.louis.eu. Retrieved 2019-03-22.

External links[edit]