58080 Tamiya Astute

tamiya astute 58080

Tamiya releases the Astute in 1989. The first tamiya buggy where you can beginning to race with. This 2wd was designed to obtain great performance.

Ball differential, suspension adjustment, low profile tires, FRP chassis, roll bar, bell crank steering, everything is present to compete.

tamiya astute 58080

Tamiya has develop a new technology for the rear drivetrain. The Z point suspension as named, permit to increase toe -in when the damper is compressed.

tamiya astute 58080

The ball differential can be adjusted by adding spacers, there is no spring in outdrive like usual.

diffA clever idea from engineers was to create a door below the transmission gear case to facilitate access to the differential through a hole in chassis.

door

All electronics are planted in right place (for a competition buggy) and well protected thanks to the body and his under cowl

tamiya astute 58080

Even if others manufacturers use ball cup, Tamiya  ajust the upper links with bushing.

tamiya astute 58080

tamiya astute 58080

I didn’t have the time to drive this freshly refurbished buggy by me. Someone bought it before I put the wheels on track!

Moreover, I remembered when I was a kid and beginning RC with my Tamiya Falcon, my neighbor was offered for his birthday an Astute with Futaba Attack radio.
He was the “king of the hill” with that car, it look so much modern compare to my Falcon. Fast and silent, the low ground clearance and lack of roll was impressive in the park.

After few years, I bought his used Astute and make some run with it on a backyard track. The car wasn’t so impressive on  my bumpy track, turning without understeer was really hard.
All the weight is concentrate at the rear. and the front drivetrain were totally overwhelmed.

Although I keep good memories, the Z-Point suspension and bushing in links were not really a good innovation. As you can imagine it was not a success and racers easily swapped them with Tamiya Madcap parts to obtain a rear drivetrain without play in assembly.

David from RC4ON

 

 Here some interesting documents from my collection:

Advertising

Tamiya service book

Extract from Tamiya catalog 

 

Magazines:

Cross-RC MC6 Man Kat 6×6

man 6x6 cross-rc

Some new kind of vehicule on RC4ON!

Even if they are not vintage, Scales cars are also a hobby of mine and I want to share those ones on website.

This is a Man 6×6 from Cross-rc a newborn chinese manufactured. It’s a permanent locked six wheel drive without speed gearbox. Delivered as a kit but some parts are assembled like the transfer case and axle. The light kit, the motor are included.

Man 6x6 KAT MC6 Cross-rc

The manual is well detailed but there is no translation.

Man 6x6 KAT MC6 Cross-rc

The transfer case is epicyclic.

Man 6x6 KAT MC6 Cross-rc

It’s a ladder type frame chassis.

Man 6x6 KAT MC6 Cross-rc

The suspension look like the real one.

Man 6x6 KAT MC6 Cross-rc

Follow the manual and you will obtain this in few hours.

Man 6x6 KAT MC6 Cross-rc

The body take times many more. You should assemble all the parts with glue like a model kit.

Man 6x6 KAT MC6 Cross-rc

Man 6x6 KAT MC6 Cross-rc

The kit is sold as a military truck. But I’d rather to do something different.

Man 6x6 KAT MC6 Cross-rc

A lot of work, some stickers and scale accessories, and here it is, a Truck from the Breslau Rally.

Man 6x6 KAT MC6 Cross-rc

Man 6x6 KAT MC6 Cross-rc

Man 6x6 KAT MC6 Cross-rc

All the suspension parts are reduction of the real Man 6×6. You apreciate the work of them when the truck  climb a rock. The wheel travel is not overstate as a crawler or rock racer.

The tire looks scale but lake of grip. They are not sticky as those we found as aftermarket tires. You take your time when you drive,  to not damaging the body. This one is pretty weak and will not support rollover as a lexan body.

This heavy truck is fantastic, looks like a real one when you drive it. This Man climb everywhere if you keep in mind its 1:12 scale.

David from RC4on

Video:

More pictures:

MC6 MAN 6x6 KAT1

Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc
Man 6x6 KAT MC6 Cross-rc

 

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