V-max is a category of its own. The mighty V4 has made it to motorcycles cult heaven. The men behind this monument on two wheels recall the making of V-max.
Debut in Las Vegas in 1984
Mr. Araki remembers: “V-max had its first debut at the US dealer meeting at Las Vegas in October 1984.
The bike was targeted for the 1985 season, to be sold in US first. Its key word was as simple as effective: American Hotrod. Its sensational appearance was very different from other typical American models at that time. So the bike became the highlight of the dealer show.”
Mr. Araki is General Manager of Yamaha motorcycle operations in Japan. In 1984 he was project leader of V-max.With 145 HP and a V4 1200 cc engine, the machine had the potential for the most powerful acceleration ever seen before on a road legal production machine. Soon after the US introduction also European journalists and customers pushed for introduction of V-max.
Mr. Araki: “We were a little overwhelmed by this strong positive reaction both from US and Europe.”
Concept: strongest V4 motorcycle
Many motorsports fans enjoy the powerful acceleration of large displacement V8 engines. Also drag races had been actually recognized as a professional competition when Yamaha started a project to build a motorcycle with an image of a V8 hotrod. This was the start of the development of V-max. The concept for the development for the model was very simple and clear- to build the strongest bike with V4 engine.
Says Mr. Araki: “There was one impressive scene I saw, when I visited the USA to study the market. It was a ‘ Bridge Race’. Each time two bikes bikes lined up and set off. They simply competed for acceleration speed for 400 meter. Young people were crazily enjoying the Zero 4 race (400- meter race). (Of course it was not an official name of the race but Yamaha R&D staff nicknamed it). They were using a bridge over the Mississippi River.
They started from one end of the bridge, and the finish line was the opposite side. It was a simple rule. First concept I imagined from this impressive race was ‘To make a bike, which is strong at straight lines and really fast.’ It was the birth of the ‘V-max’ concept.”
A month in isolation
With holding this impression in his mind, Mr. Araki crammed himself in a room of GKDI design company in Santa Monica, California, a external Yamaha design office. For nearly one month with his colleague, Mr. Ashihara (engine design) and Mr. Kurachi (body design) they worked to put this image on paper. Ed Burke, senior product planner from Yamaha US supported the team in concept work and research . After intensive studies, they created a 1:1 rendering sketch. As soon as they completed the sketch, they flew back to Japan with it to present it internally.
1984: an early rendering sketch from GKDI design in Santa Monica
Mr. Ashihara was responsible for V-max engine design
Mr. Ashihara: “We have been designing an engine for the Venture Royal at that time, but it was prioritized to have its power in low and mid range. It honestly had potential, but we had to sacrifice its horsepower for better practicability. We had to clear the emission standards and all in all we faced a lower power output than we desiered. That made us a bit frustrated and we were excited to brow off our frustration with V-max. However, honestly speaking, it was unexplainably tough to improve the only 90 HP engine of the Venture to 145 HP of V-max.”
First plan: turbo charger
Cutaway drawing 1986: the V-boost intake in blue and exhaust in red.Fuel tank under the seat and aircleaner under”tank-cover”.
Mr. Ashihara continues: “Not only we had to increase peak power from 7000 rpm to 8500 rpm, but also we had to review overall features from different aspects such as compression ratio, intake and outlet air induction rate. We also considered using a turbo to increase the horsepower. But there was not enough space for it. Then, we figured out the V-boost. This new technology ‘V-boost’ gave unexpected high horsepower ( V-boost technical explaination of in press info 1985). When the performance increased, of course, we had to improve the unit drive and its durability. There were many things to solve as we progressed further.”
Mr.Araki adds: “We had a lot of trouble with drive units to make it sustainable with the high power. Our try and error efforts continued until just before we started mass production.”
Design to express function
Much intensive and persistent discussion has been continued with the designers in GKDI.
Mr. Araki: “You know, V-max was very eccentric style and components didn’t fit in the right place. It was a kind of fighting for space. The designer wanted to place the tank low. We knew that it is necessary to show the powerful impression of the engine. It was hard but we were driven by the strong will to develop a model which never existed before.”
The V-max team was quite enthusiastic, while the general reaction in Yamaha was quite slow. Here Mr. Araki discusses the final layout.
He smiled and recalled when this model had been completed: “It may be strange to say now, but we received almost no reaction inside our company. I thought it was because the style of this model was too eccentric for most people at that time and nobody knew how to react.”
Public reacted strongly
As soon as the mass production started, V-max made its debut in the front of US journalists, followed by Japanese and European media. Needless to say: most of journalists wrote complimentary remarks and how they were impressed by V-max excellent acceleration, style and riding feeling. V-max received high evaluation from Media all over the world and strongly sold in 1885 and 1886.
A smaller V-max ?
Soon, Yamaha US requested a smaller version of V-max in 750 cc.
Mr. Araki started to talk disappointedly: “It was the same V4 engine as the V-max one, however the idea was to give the engine more powerful looking by putting the tank lower, to realize the designer’s intention. The idea to design a new V-max 750 seemed not so difficult at the beginning, but once we simulated it, we found out that we couldn’t keep the tank lower. And the benefits were marginal over V-max 1200.
If V-max 750 would have been released?
FZX 750 Fazer: the concept instead of a V-max 750.