VTR1000F Fact Book

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VTRDark
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VTR1000F Fact Book

Post by VTRDark »

I've not seen this before which has some intresting snippets of info. Taken from a Japanese site the translation is questionable but here goes anyway.

http://translate.google.co.uk/translate ... 6bih%3D476

Introduction
In the development of motor cycle, not only the improvement of output characteristics, with the aim of further evolution of quietness vibration resistance and combustion efficiency, Honda we have been striving to actively enhance engine variations.
1977, announced the GL500 equipped with a water-cooled, 4-cycle Tate置 V-type two-cylinder engine as a V-type engine of Honda's first. In 1982, it succeeded in practical use is mounted on the VF750 Sabre a V-type engine layout 90 degrees to eliminate the primary vibration theoretical, excellent quietness smooth, to achieve high output further. And VT250 series of then, while adding further aged in VF400/VF750 series, etc., this breakthrough layout, has been without the one section of the engine variants of Honda.

In addition, efforts to actively market expansion of over-750cc class, beginning in import and sale of the GL1500 in 1988, and the like to sell it in the domestic model CBR1000F, CB1000 SUPER FOUR, Pacific Coast, Shadow American Classic Edition, such as Valkyrie, I strived to actively enhance the lineup of large motorcycles.
And in September 1996, revision of the licensing system in the country is carried out, a large two-wheel training in designated schools and to start from next spring around in Japan, it is enhanced even more are expected to demand for large motorcycles.

Under these market conditions, Honda meet the needs of internal and external increasingly diverse, aimed at further expansion of large motorcycle market strive to enhance its product line-up, high-performance super sports dedicated, water-cooled, 4-stroke, that can be with to develop three new engine 90 ° V-twin 996cm, juggle at a high level conflicting maneuverability of stability and light resistance, and such as newly developed SPL the (swing arm pivot-less) frame was poured into the new technology of many, I was given birth as a super sports model of the new generation, the VTR1000F clothed in appearance and exotic maneuvers feeling a new sense.

Image


Aim of development

Specifically, the charm of the V-twin engine,

  • Exhaust sound characteristic of the two-cylinder V-type only emitted individually from the cylinder of the two

    Pulse of the V-twin engine that continues around like creature even idling

    And rich torque of fast low-and middle-range, overwhelming feeling of acceleration of the V-twin engine-specific

    Styling and compact body dimensions of the unique V-twin engine results, side-view with the force attractive slim

    Crankcase slim to contribute to the frame stiffness and cornering performance


I will be like.

In developing, it is determined to be "super V-twin that shakes the heart" keyword, we aim to realize a super sports model of the new generation of non-traditional model.

Developing specific goals will be aggregated into the following three items.

Run of 1. Pleasure
Instead of pursuing the fastest, highest output, only marginal performance, when the emphasis on process itself to reach its potential, to accelerate to speed there from one vehicle speed, driving performance of VTR1000F is, V twin It was the goal that you can experience "behavior and a sense of acceleration, sound and beat" a specific, anyone can enjoy the "run of the pleasure" easily.

Goal requirements
  • TOP roll-on acceleration V-Twin sport NO.1 ※

    Strong power and torque thick accompanied by beating feeling like V-Twin engine

    Faithful to throttle linearity rider
    (The cruise when the ※ top gear 80km / h, and acceleration performance to reach the 400m in the full throttle)



Steering feel remains 2. Meaning
Rather than pursuing only limit performance in circuit racing, emphasizing "ease of maneuverability and ease of use of everyday, light resistance at winding, stability of the highway", and maneuverability of VTR1000F is, everyone It was the goal of being able to experience the "feeling of maneuvering at will" all, in the situation.

Goal requirements

Nimble maneuverability of the 400cc class average, maneuverability

Stability that increases with vehicle speed
Realization of the "steering feel at will" of the new sense



Styling
While also emphasizing the character of as a high-performance road sports, while ensuring the wind protection effect of high-level, and that smoothing also air flow for cooling the engine, bodywork VTR1000F is, to balance the conflicting requirements I have adopted the aerodynamic form was developed.
In general, the large super sports machine of conventional, full cowling mounted while was a classic, the design method of VTR1000F, to expose the lower portion of the engine and frame dare, was adopted to emphasize half cowling the strength have.

Fresh air was introduced from the air intake on the front cowling will cool the engine effectively while passing through the side of the engine. On the other hand, the discharge effectively the heat generated from the radiator of the two mounted on the side, the air outlet of the side cowl protects the rider from heat.
In addition, at high speeds, and is raising the high-speed stability by the action of downforce generated by the effect of the small fins of the lower cowl.

It does not hit in the hand even when the consists of a curved surface, turned the steering wheel to the maximum, and the like put a dent in the knee knee grip during further, large fuel tank to provide users with a comfortable position in all riding conditions under.
By mounting the rear seat cowl of separate type, seat cowl one-piece structure has been changed to the single-sheet specifications. In addition, set the accessory case of 2L capacity at the bottom of the Tandem seat, it is equipped with a rubber band fixed for a U-lock-only space.

In order to strongly reflect the design theme to the external shape of the engine, as a result of the discussion that repeated between the designer and the designer, and and functional strong, we have the design of the power unit full view of life.

Rather than look cold mechanical inherent in aluminum frame, the design of the frame body has a (D-shaped curved surface material-shaped cross-section of the day) oval section reflecting the image of a skeleton of flexible animal. Configure and pipe work that has been buffing beautifully, casting parts of shot finish anodized on the surface, diamond frame of truss structure feel the craftsmanship, while housed in a compact as possible in the frame of the engine I have a shape emphasize the slim of the engine of the V-twin also.

As well as subjected to buffing high-quality in the exhaust system of all stainless steel, it has undergone a careful mirror finish on the muffler of shape splashed high rear end.

In addition, we have while pursuing a thorough aerodynamic performance in determining the shape of the mirror, to match the appearance of organic VTR1000F, the smart ones.
The image of a precise clock, the appearance of the instrument panel, has a new design finely pointed also meter needle.
The inorganic waste image, step holder clamped to the swing arm pivot is the representation of the functional beauty organic.


Power Unit
Currently, most of the super sports domestic large displacement is equipped with a four-cylinder engine, when compared to the output of per liter it is simply a four-cylinder engine is widely known is that more efficient than two-cylinder engine have been.
However, in the modern way of enjoying the motorcycle is in increasingly diverse, even in the road sports model, is increasing Users speed than absolute, seek a pleasant beat and a sense of feeling of acceleration. And, slim body that exerts a light maneuverability, power unit that can claim a presence, such as the powerful feeling of acceleration in the speed range low-and middle, the popularity of the motorcycle with a personality that can not be expressed unless a big V-twin engine In recent years, growing is, has cropped up in the country.
Fun beating feeling at low speeds, but the vibration at high speeds and large, models that meet the requirements of the big V-twin Super Sports ideal still small, domestic big V-twin models of traditional, authentic to the user It is the present conditions the appearance of the big V-twin of oriented is what is needed.
Then, the decision on the concept of the engine developed a "big twin fun to be running slowly, you can enjoy even ran as fast" In developing, we have newly designed power unit of VTR1000F along with this idea.

Image

V-type two-cylinder 996cm 3 engine design new water-cooled, four-stroke · DOHC · 4 valve 90 degrees
In the development of 1 liter V-twin engine of the new design, it is possible to achieve a rich torque characteristics at all engine speeds, and sought engine characteristics blow up smoothly up to high rpm. In addition, we have set as a necessary requirement also be cut an unpleasant vibration.
Specifically, it is set to 90 ° cylinder angle back and forth to clear the target. The valve and the valve DOHC4 around, crank shaft was a single-pin type. Furthermore, in order to take advantage of the beat and a sense of feeling of acceleration of the V-twin engine only, we are setting the optimal flywheel mass.

In addition, as one of the characteristics of the power unit, has a structure integral with the swing arm pivot up and down the split crankcase of the cylinder sleeve one-piece and so on.
In general, to achieve a high handling stability, and that in order to ensure a large wheel load distribution, possible only to close a front wheel and crank center, connecting straight swing arm and the head pipe frame with high rigidity But it has been the best.
However, if it is equipped with a big V-twin engine 90 degrees as VTR1000F, because the longitudinal-vertical length of the engine is large, and is laid out in the optimum position is difficult to solve this problem, the crank of the swing arm pivot integral I have devised a case.
Then, by directly attached to the crankcase swing arm, it becomes a structure in which a disturbance from the rear wheels is not transmitted to the head pipe directly, the rigidity distribution of the front and rear wheels between the optimized steering stability excellent in a new sense I was realized body configured to have sex.

Image


Frame
SPL (swing arm pivot-less) frames
S.P.L frame The new design contains all the components, the main frame made of aluminum VTR1000F is made up of two main sub-systems aluminum pipe, hollow cast head pipe, open cross-section in the rear plate.
Use the D-shaped curved surface material shaped cross-section of the day, the main pipe, provides a whole rigidity ideal. Use a thin D-shaped curved surface material as compared to the main pipe, sub pipe acts as an engine hanger mainly. The head pipe, we have a structure with high rigidity in the compact are hollow thin-walled molded by gravity casting.
Rear plate which is disposed so as to surround the rear cylinder is shaped with thin gravity casting, the upper is reinforced with the back ribs of many, but acts which receives a large load from the upper pivot of the rear cushion. In addition, the back ribs are omitted as much as possible, the bottom will not control properly the coupling rigidity of the engine.
In addition, provided on the engine side the swing arm pivot, to reduce the size of the rear plate, omitted under cross, further, set the proper strength, rigidity and flexibility to each part by CAE analysis, lightweight design without waste as much as possible, I realized structure compact frame.

Image


Relationship and driving stability new body structure by SPL frame

S.P.L. frame CAD To ensure the front wheel load as close to the front wheel as much as possible the engine and connected by a high-rigidity frame the front and rear wheel between, on-road model general, has passed the steering stability until now. However, V-twin engine large-displacement 90 degrees, mounting position is at the back for the front cylinder is large, front wheel load distribution is not increased, ensuring stability was difficult.
VTR1000F has passed the driving stability in a whole new way of thinking. First, I make up the unit relatively stiff in the front wheel system, head pipe around. Then, it is connected to the engine directly to the rear wheel system, swing arm around, and it constitutes a unit of another. And, is bound only engine hanger bolt of the top of the engine, right and left three places each unit of these two, we have properly set the rigidity of the hanger around.
By employing this structure, the flexibility of the body and small wheel load distribution, it is possible to secure the light of the low speed, the engine hanger around that received by the engine of the large mass disturbance from the rear wheel, it is appropriately controlled It is hard to tell the front wheel system and attenuates stiffness, ensuring stability during high-speed operation.

Image


Suspension
Hybrid swing arm with crank case direct

VTR1000F has been used as a determinant of the steering stability of the engine itself, the crankcase, the color has been the insertion hole of the swing arm pivot is opened for the upper and lower split surfaces for this purpose.
The outside of the collar, the swing arm is mounted via a bearing, is placed a step further outside the holder and has tightened it is passed through the hollow pivot bolt one.
The aluminum swing arm that was mounted directly to the rear of the engine, and has adopted the hybrid structure of the new design. And D-shaped cross-section extruded form aluminum pipe of 38 × 82mm, is composed of a cast pivot section, as well as reduced weight reduction and welding process, the swing arm, a subtle stiffness control of the pivot around is very important based on possible.

Image
Swing arm pivot comparison

Innovative proline clear suspension
Even while adopting a pro-link suspension reputed this time, the pivot of the cushion arm is provided in the under-the cross section of the frame, is connected to the aluminum bracket fastened directly to the engine in the rear suspension system. Further, the bracket side stand circumference has been tightened.
And a gas-filled type φ40mm, of axle travel 124mm, and pressure side adjustment mechanism of the seven stages, rear damper is equipped with stepless rebound damping force adjustment mechanism.

Image
Image
Rear shock absorber damping force characteristic diagram


Electrical system
The new free-form headlights
Headlight Headlights VTR1000F, has adopted a free-form headlights which adopted the reflector latest design. As it leads the light valve comprises a reflector with a complex curved surface labeled free-form, is irradiated toward the front surface, the determination of the illumination area by the lens is not required as in the prior art, the system, the clear type It is now possible to employ a lens. I have built in the fairing of the headlight top position lamp.
In addition, such as adopting a multi-reflector tail lamp of the system around the rear, and has adopted the equipment of the latest in lighting class.

Image

Meter panel distinctive design
Meter panel Is mounted on the fairing stay, the instrument panel provides the rider a variety of information by meter with excellent visibility.
While adopting the tachometer of large white face, and a black face speedometer, design has poured the feelings of the new design up to the 1-needle. In addition to equipped with an LED reserve warning light that lights trip and odometer digital display, fuel level will become 3.5L, according to the European standard to be enforced new, meter such as other, meter control of all of VTR1000F I have adopted the illustrations on the display of the kind.

Image

Compact and lightweight battery
Conventional, 14AH battery had been installed many large machine, but we have adopted 12AH maintenance-free a small (MF) battery in VTR1000F. This, while ensuring the necessary and sufficient power for normal operation, including the start and stop, etc., we have succeeded in weight reduction of about 400g.
  • PRESS INFORMATION 1996.12
    This content has been created based on the publicity materials of December 1996.

    Honda Motor Co., Ltd.
    I is prohibited All Rights Reserved by HONDA MOTOR CO., The LTD., All rights reserved.
    This content is in Japanese language.
    These homepage contents apply to the Japanese domestic only.
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Lord Flasheart
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Re: VTR1000F Fact Book

Post by Lord Flasheart »

Good find :thumbup: some interesting info to go with the interesting translation in places :lol:
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VTRDark
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Re: VTR1000F Fact Book

Post by VTRDark »

some interesting info to go with the interesting translation in places :lol:
I was realized body configured to have sex.
I know the Japs get up to some weird stuff but this is just so wrong. :lol:

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freeridenick
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Re: VTR1000F Fact Book

Post by freeridenick »

Great find, even if I'm four years late to the party.

The section on the frame development and swingarm mount ties in with information I think I've read about the Spondon 'ears' making the frame too stiff.
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fabiostar
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Re: VTR1000F Fact Book

Post by fabiostar »

some funny reading in that but well worth a look...... and they still managed to fuk the ccts up lol
the older i get,the faster i was :lol:
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mdb
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Re: VTR1000F Fact Book

Post by mdb »

fabiostar wrote: Tue May 15, 2018 6:55 pm some funny reading in that but well worth a look...... and they still managed to fuk the ccts up lol
Crappy ACCTs is a Honda speciality.
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