1701 Traxxas RADICATOR Ultimate

Traxxas Radicator 1701

Produced by Traxxas during 1989, the Radicator was the successor of the Bullet. Many parts were news. The chassis, some minors modification on the drive train and transmission.

Compare to the Traxxas Bullet, the internal tranmission gear was  in 48dp with a strong planetary differential.

The T6 Alluminium chassis and FRP plate was replaced by ABS plastic to saved weigh. This new designed chassis enable the lengthwise battery position to improved handling. But during this evolution, the Radicator lost the gold alluminum dampers  and the bell crank steering.

The body impressed by the lack of similarity with the previous body. It was very angular and included an adjustable rear wing. One piece rims and a largest bumper renforced the “bullet proof” design

If you keept in mind the price, this Traxxas entry-level buggy, with many impressive performance feature, was very competitive to other manufacturers. It forged a piece of experience for lot of RC beginner. 

Traxxas offered many parts to improved the buggy with TRX Racing Accessories. That was the beginning of this project.

 




 

I intended to find the TRX parts trought Ebay, local auction, forum etc…
And start to build this Ultimate Radicator.

First I made a wing nerf in Kydex. This material is very easy to cut and shape.
The body mount are present to fix properly the body.

Kydex is also cut for front and rear bumper.

As you can see, Aluminum T6 dampers, Graphite front and rear tower, chassis complete the buggy. RPM white ball cup for better looking. A repro body from “Team Blue Groove” and a decals sheet from “MCI decals” laters and that is the time for me to test this Ultimate Radicator on the track.

On the track this buggy looks amazing with all his colors. The white parts always “do the job”.

First drive is outstanding, the buggy is very well balanced during jump. The TRX ball differential is efficient and smooth. But the transmission is still noisy with the external 32dp gear.
I will one day find the 48 Pitch gears TRX, that are extremely rare nowadays.

I lowered the buggy as best as possible. Dampering is pretty good but hard to setup. The pistons shocks have big holes and need thick silicone shock fluid like 70w.

Compare to a modern electronics, the Futaba MC210 ESC and the Futaba Attack Radio are not pretty progressive and the buggy is nervous during turns and acceleration. But this behavior contributes to the pleasure of driving cause it perform well on the track.

David from RC4ON

Video :

 

More pictures in gallery :

1701 Traxxas Radicator Ultimate

1701 Traxxas Radicator Ultimate

Team Associated RC10 1985 Jay Hasley Inspiration

RC10 Jay Hasley Inspiration

 

In 1985 Jay Hasley won the first IFMAR Off Road World Championship with a nicely optimised RC10. I didn’t want to make a replica of this car but just want to be inspired, using vintage parts collected during some years.

6000 Team Associated RC10 1985 Jay Halsey Inspiration

 

I started with a Composite Craft chassis that needed to be refurbish.
Many scratch, wholes more than it needed. But after some work and some layers of spray paint, it look’s like new !

 
6000 Team Associated RC10 1985 Jay Halsey Inspiration
 


 

In my  box I found some accessoiries:
CRP nerf wing, Carbide balls for the diff, RPM steering and a rear Associated motor guard.
Turnbuckles from the losi XX will replace the genuine one to faciliate settings.

 
The steering :
 

6000 Team Associated RC10 1985 Jay Halsey Inspiration

 

The motor guard for graphite chassis :

6000 Team Associated RC10 1985 Jay Halsey Inspiration

 

Tips : How to easily build a rear wing who look vintage ?
Find a RC10 rear wing like the AS6183 and cut in a sheet of lexan the wing side as the design you want.

 
6000 Team Associated RC10 1985 Jay Halsey Inspiration

 

6000 Team Associated RC10 1985 Jay Halsey Inspiration

 
6000 Team Associated RC10 1985 Jay Halsey Inspiration

This RC10 was built with most of vintage parts. Only the tires, the cupball and shock tower come from the re-release of 2013.
To complete the set I found a brand new in box,  Sanwa Machine-1 pistol grip radio at a reasonable price. This radio design is very impressive. You feel like Clint Easwood in Dirty Harry, “go ahead, make my day, punk !” All setting are easy access with the tiny screwdriver.

 
6000 Team Associated RC10 1985 Jay Halsey Inspiration
 

 




 

Built a Vintage RC car without drive it on track is a real frustation. So every car of mine should run. The 17×2 Motor fit perfectly on this light RC10.

On the track, it is very well balanced. Rear grip and no lack of steering. “Thank you” to modern tires and front short arms. As I espected the car is efficient and pleasant to drive. The suspension is outstanding for the age.  Even if the original rc10 chassis set a high level handling, all this parts improve a lot.

David from RC4ON

 

Video :

 

 

More pictures in gallery : 

6000 Team Associated RC10 1985 Jay Halsey Inspiration

6000 Team Associated RC10 1985 Jay Halsey Inspiration

6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985
6000 Team Associated RC10 Jay Halsey Inspiration 1985

Schumacher U415T Cougar MK1


Introduced in 1990 by Schumacher the RC manufacturer from England, the Cougar was a nice piece of 90’s history. As mentionned on the manual, Schumacher cars had “Performance and technology that YOU CAN BUY !”. And they’re right, even if the quality is lower compare to those other challengers, the Cougar was well armored face to the Team Associated or Losi.

The cougar was the second 2wd buggy from Schumacher, the first was the Top Cat release in 1998 close in design but with different front drivetrain. The TopCat had an “inboard” suspension using cantilevers.
 
Publicite cougar
 
Let me show you how I refurbished this “Fat Cat” to grab the first places during vintage race.

 

Schumacher cougar u415T mk1

 

Schumacher cougar u415T mk1

 

The chassis is aluminium inspired by the RC10 gold pan.
The original rear mount in plastic is very weak. The previous owner made a part in epoxy sheet cut at the right size to reinforce the mount.

Schumacher cougar u415T mk1

Look at this fantatic ingineer idea to attach the wing to the wing mount with elastic

Schumacher cougar u415T mk1

 

The drives shafts are telescopics like those found on Losi JRX-2 or Traxxas Bullet, both were available on 1988.

 

Cougar notice

The rear wishbone mount solution is innovative. The pivot blocks are attach to the chassis with screws and nuts, but you can change the number of “Nylon washer” to increase or decrease the Toe and the Anti Squat. Economic and clever !

 

Cougar notice 2

 

One thing surprise me about this transmission. On the Cougar, all the screws, nuts are “metric”. All the parts for the ball differential are “imperial”
The thrust race, the rear axle, friction washer, thrust washer,….
And you know what ! the balls in pulley are “metric” (3mm)
Disturbing !

Cougar notice 3

There is a friction paper between the washer carrier or the outdrive (as you want) and the pressure plate. Not for me the best solution to prevent the rotation of the pressure plate.

 




 

Cougar notice 4

 

Borrow from the Top Cat the transmission include a belt. The tension can be adjust with eccentric guide.

Schumacher cougar u415T mk1

The front is also innovative as the rear

Cougar notice 5

 

To change the “kick up” angle of the front drivetrain, just add or remove the spacer. It’s easy, you don’t need option part, just a small spacers and two screws.

 

Schumacher cougar u415T mk1

 

The name “Cougar” were use during five years with eleven declension of the chassis. With Truck version, Economic version, Onroad version, Team version and after 1995 Schumacher change the denomination of their 2wd buggy by “Fireblade”. We have to wait 2010 to see this name reborn with the Cougar SV.

Sometime I really like to refurbish a car with periodic electronics but on this Cougar I relocate the electronics at the rear, I use RC10 battery cup and made some battery tray for my lipo shorty. I really want to drive this car more than 5 minutes on the track. So I put modern electronics 17.5 combo.

On the track the car handles very well, jump in air like a Cougar on is prey. In this article I didn’t spoke about the dampers. They look great but even if I refurbished them with new o-ring, they leak and they are not constant. This car is full of innovative solutions. Try to adjust the drivetrain without option parts is simply the best thing to keep in memory.

David from RC4ON

Video :
 

 
More pictures in gallery :
Crédit photos : Olivier H.

Schumacher Cougar MK1

Schumacher Cougar MK1 1990

Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990
Schumacher Cougar MK1 1990

Build a scale from a Tamiya 58397 Toyota Hilux Hight Lift – Part 1 : The chassis

Tamiya 3 speeds Hilux Mountaineer

In 2007 Tamiya release a brand new chassis with 3 speed transmission. A great model for the fans, but instead of putting ugly decals and four ridiculous wheels to create the High-Lift, they should have looked to the past and be inspired by the toyota mountaineer.

That why the first life of my  kit was a replica of the Toyota Mountaineer 58111.

 

 

Hilux

My High Lift, the Tamiya Mountaineer tribute

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

 

Here it is in video:

After driving and appreciated an Axial Jeep Rubicon as a “Scale”, I wanted to modified this Toyota as a real 4×4 truck.
This is how I did !

Start of operations

The front drivetrain:

Original

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

 

Fist of all I reduce the height by removing the shims between the leaf spring. I buy Super Lift damper which they are 20mm longer. They are also screwed at lower place

The front shock stay are also longer. The steering knuckle are reversed and the steering servo put at the front.

 

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

 

The gearbox and motor:

Original

chassis

 

My modifications :

The body is to high due to the transmission and motor. I changed the location with an home made plate cut in carbon fiber.

 

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

 




I stand back the transmission, put a 48dp spur gear with only 75 teeth to minimize the height of body

 

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

 

Attach the servo on the rear of gearbox.

chassis
chassis

 

The rear drivetrain

Original

tamiya-high-lift-chassis

 

My modifications :

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

58397 Tamiya Toyota Hilux High Lift Scale Mountaineer 58111

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: