Kyosho Ultima 1987 WC Inspiration

Kyosho Ultima World Championship 1987

Kyosho produced the Ultima in 1987. But the same year, during the World Championship, Joel Johnson drive a prototype which inspired my restoration.

A link to the WC Ultima from Studio68 : Here

An article about the world 87 in a french magazine:

The beginning started from a chassis and a sheet of epoxy. I don’t remember how this chassis came to me. It look like Ultima Pro’s chassis cut to reduce the width.

Kyosho Ultima Worlds 1987 Inspiration joel johnson

Before this result I worked many hours to fill multiple holes with tamiya cement and painted all in black. Kyosho Ultima Worlds 1987 Inspiration joel johnson

The upper deck gauge.

Kyosho Ultima Worlds 1987 Inspiration joel johnson

I found a Kyosho ball differential for Ultima as NOS and decide to put onto the transmission. The original gear was good but this Option House  is the cherry on cake.

Kyosho Ultima Worlds 1987 Inspiration joel johnson

Notice, they is no differential drive ring. The balls are retained just by the outdrives.

Kyosho Ultima Worlds 1987 Inspiration joel johnson

Kyosho Ultima Worlds 1987 Inspiration joel johnson

I also add Kyosho Gold dampers

Kyosho Ultima Worlds 1987 Inspiration joel johnson




I dyed CRP wheels in orange

Kyosho Ultima Worlds 1987 Inspiration joel johnson

Kyosho Ultima Worlds 1987 Inspiration joel johnson

And this is how the buggy look after few weeks.

Kyosho Ultima Worlds 1987 Inspiration joel johnson

I don’t like the kyosho steering. The servo saver look to weak. I rather like to change it with a bellcrank from an 1984 RC10.

I swap all the Kyosho links for Team Associated links, I’m an RC10 addict!

Kyosho Ultima Worlds 1987 Inspiration joel johnson

The upper deck is in place, the battery is put in the chassis length. All Futaba electronic is periodic, like the AYK magnum motor.

Kyosho Ultima Worlds 1987 Inspiration joel johnson

Some pictures details

Kyosho Ultima Worlds 1987 Inspiration joel johnson

Kyosho Ultima Worlds 1987 Inspiration joel johnson

Kyosho Ultima Worlds 1987 Inspiration joel johnson

The body come from the Kyosho Tomahawk and the wing from the Ultima.

Kyosho Ultima Worlds 1987 Inspiration joel johnson

 

Kyosho Ultima Worlds 1987 Inspiration joel johnson

Kyosho Ultima Worlds 1987 Inspiration joel johnson

And the dream came true:

I’m like Joel Johnson, a Futaba Magnum radio in hand, testing my brand new kyosho prototype.  I climb the podium, all the trims are adjust and…

Go!

The buggy started in a straight line like a rocket  The kyosho ball differential is very smooth.

The first corner came too fast, I don’t have the time to brake. Amazing! the car turn without overstreer, the rear drivetrain is glue to track. The steering is very precise, “thank you” RC10!

A big jump put the car to the air and the fantastic gold dampers do the job better than I ever hope. The light chassis is well balance.

I make the perfect lap at each time but my Sanyo 1200 Nicd decided to stop, It is empty. The Ayk 360 Magnum turn like a charm during 6 minutes.

What a beautiful moment.

David from RC4ON

Videos:

 

More pictures here:

Kyosho Ultima Worlds 1987 Inspiration

Kyosho Ultima Worlds 1987 Inspiration

Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson
Kyosho Ultima Worlds 1987 Inspiration joel johnson

 

3067 Kyosho Progress

3067 kyosho progress 06

The Kyosho Progress was release by Kyosho during 1984. It  was the first four wheels drive with four wheels steering RC buggy of history. And it  was also the first 4wd from the manufacturer.

A kyosho scorpion gearbox is modify to accept a chain extended to a front gearbox without differential. There is one-way bearing into each rim to do the job.

Kyosho use only one damper to the front with torsion bar as a spring, which is particulary difficult to set for a smooth damping.

3067 kyosho progress 4wds




3067 kyosho progress 4wds

3067 kyosho progress 4wds

3067 kyosho progress 4wds

 David from RC4ON

More in gallery: Kyosho Progress

 

Video:

 

Kyosho / Graupner Nissan Datsun 240Z Rally Sports

After the release of the Eleck Peanuts in 1978, Kyosho releases its second electric off-road RC car in 1979. The Renault Alpine A310 was based on its brand new chassis called Rally Sports.

A Nissan 240Z and a Mercedes 280G followed the same year. All these models were made available on the European market in 1980 through the German importer Graupner.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

During this period, many RC cars were made of aluminum and light steel. For this Nissan, Kyosho reused the design of its existing nitro cars.

The main chassis is made of two aluminum rails with specific forms. It supports the rear and front drivetrains.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

The RC unit box attached to the chassis provides good protection to the electronics.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

The battery is perpendiculary-placed at the rear, with the mechanical speed controller on top. There is enough space left for the steering servo, the power pack and the radio receiver.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

The front suspension is of double wishbone type, including springs working as shock absorbers. Hardness is adjustable by changing the anchor points. The front knuckles are connected to the wishbone with ball joints in order to limit the wheel camber during suspension work.

There is no bearing or bushing at the front. The servo-saver is mounted on the axis which supports the body.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

The rear suspension is of trailing arm type and all parts are made of aluminum. At the front, the springs work as shock absorbers. Bushings guide the wheel axles and the driving shafts are dog bones.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

The transmission is filled with oil to lubricate the gears and the differential. As the motor mount is static, you need to change the motor pinion and the spur gear to modify the gear ratio. The protective cover should be gently tighten otherwise it may touch the spur gear.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports




The body was painted like the 1971 Nissan 240Z East African Safari Rally. The body was raised and the rear tires were changed to improve the off-road look.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

The bodyset is a reproduction found in the best specialist store : MarwanRC.com. The lexan quality is very good and thicker than the original bodyset’s. The decals are perfectly reproduced and white stickers are opaque.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

On the track, driving this car is surprising despite of its age.

The front drivetrain lets you turn with confidence due to its lack of reactivity. The Nissan rides well on off-road surface but there is a lot of chassis-roll when cornering due to the lack of hydraulic dampers. The differential really works well limiting the oversteer when accelerating. However, the transmission is noisy and both the suspension springs and the servo-saver are too soft.

The car is far from reaching speeds similar to modern models, but considering it dates from the beginnings of the RC off-road electric vehicles, the comparison is far from being ridiculous.

Graupner Kyosho Nissan Datsun 240z Fairlady Rally Sports

These cars were eclipsed by the success of Tamiya SRB chassis. Nevertheless, they are an important part of the RC panorama of the period when RC were mainly On-Road 1:12 cars and nitro buggies.

The tough aluminum structure is very representative of the “old school” manner. Despite of the very reasonable play in assembly, the quality of molded parts is very good considering the small size.

I have been fond of this Nissan for a long time since it is the basis of some Kyosho legendary models released a few years later. I especially think about the Scorpion which borrows the Nissan’s rear drivetrain and chassis.

I do really love this car: for me, it is more attractive than a Tamiya SRB and it has an undeniable charm on the track.

David From RC4ON.com

More pictures in gallery : Kyosho Nissan 240Z

Video :

 

 

ROBBE / KYOSHO Toyota Hilux

In the early ’80s, the German RC manufacturer Robbe wished to expand its range of products mainly focused on planes and boats. It established a partnership with the Japanese manufacturer Kyosho and Robbe started to import cars, modifiying the box packaging and decals sheet for the European market.

Kyosho Robbe Gaupner Toyota Hilux

Aware of the success of the Tamiya Sand Scorcher, Kyosho released this car dedicated to driving on sand in 1982. Its dustproof chassis will be produced with three bodies: a baja beetle, a buggy and a Toyota Hilux.

Period advertising :

This Toyota Hilux is a model imported by Robbe. It is slightly different from a Japanese or American model: no roll bar on the rear plateform and a rond bumper instead of a flat unit. The car was supplied pre-assembled with the the lexan body left to paint and the wheels and radio equipment to install.

Kyosho Robbe Gaupner Toyota Hilux

The chassis plastic frame protects the electronics thanks to a cover held by rubber bands. The battery is held longitudinally and must be placed on the edge.

Kyosho Robbe Gaupner Toyota Hilux

The front suspension uses trailing arms. A coiled spring on the suspension arms pivot makes the shock absorber. The adjustable servo-saver is located on the front body mount axle.

Kyosho Robbe Gaupner Toyota Hilux

The Toyota features a solid rear axle without suspension. The rear tires are used as the suspension system since they can be inflated thanks to a pump pinched into the tire. The use of a special glue included in the box works as a rubber patch to fill the hole.

Kyosho Robbe Gaupner Toyota Hilux




Kyosho Robbe Gaupner Toyota Hilux

The aluminum gearbox contains the motor and plastic gears. The transmission has no differential, but there is a clutch that works like those found on nitro motors.

Kyosho Robbe Gaupner Toyota Hilux

This model unfortunately lost the tire inflating pump, but foams provide the required flexibility.

Kyosho Robbe Gaupner Toyota Hilux




Kyosho Robbe Gaupner Toyota Hilux

Our test on hard and icy surface is not really appropriate since it highlights the flaws of this Toyota.

The lack of differential and rear suspension causes a lot of oversteer. The rear drivetrain bounces a lot while the front does its job without complaining. The steering is imprecise due to the too soft servo-saver.

The clutch is useless on this Toyota since the engine idling does not exist on an electric model. So the car goes coasting as soon as it doesn’t accelerate. As a consequence, braking is difficult, or even brutal when shifting into reverse gear.

However, the ground clearance and the lack of differential are very useful to climb softer grounds like grass hills.

Kyosho Robbe Gaupner Toyota Hilux

Like with any other vintage rc model, the pleasure you can get does not come from the analysis of performances or comparison with competitors.

However, one can’t miss how much Kyosho got “inspired” by Tamiya’s successful models such as the Sand Scorcher, Rough Rider and F150 Ranger XLT.

Technically interesting in theory, this car is a pleasure to see. Its cute and vintage look is typical of 80’s, but it better deserves a beach than a snow field.

David de RC4ON.com

Thanks to Challenger-RT, Lowry and Aussie Nerd from Tamiya Club for their help

More pictures in gallery : Kyosho / Robbe Toyota Hilux

Video :