Archive for August, 2010

My backyard “off-road track”

Here is where I drive all my off road RCs without the need of travel far into Oslo. It’s not my backyard but it’s about 200m from my house.

Not much, but when the track-markers are up, it gives me some fun driving here.

Backyard (1)

Backyard (2)

Backyard (3)

Backyard (4)

Backyard (5)

T-Bone-Racing Bumpers for Losi Ten-T

Product: Bumpers for Losi Ten-T
Manufacturer: T-Bone Racing
Price: 19.95 USD
Purchase Date: 12th August 2010
Web Catalog: http://www.t-bone-racing.com/catalog/i443.html

Mini Review

Not long ago I managed to “bump” with a basketball post at 40 km/h (25 mph). Knocked the engine out of alignment with the spur and broke the support joint between gearbox and front shock towers. While looking for repair parts I read about bumpers made by T-Bone Racing.  Why not; This time a gearbox, next time it may be the suspension arm or steering camber.

T-Bone Racing is confidence with their product and advertised: The new “N” series bumpers are more durable then the previous Delrin bumpers. They are so durable that they come with a lifetime replacement warranty.

Few clicks later;  the new “Protecting your front and covering your rear” was ordered.

T-Bone Racing Bumpers

T-Bone Racing package

T-Bone Racing bumpers for Losi Ten-T

The Package
The first thing I notice is the “Made in USA”. Most parts in the RC world since the Chinese boom is written with small label “Made in China”. It’s really nice to see “Made in somewhere-else” once in a while.

In the package you can find front bumper, rear bumper, eight screws and two T-Bone Racing stickers. No instruction manual, but you don’t need it; installing the bumpers should be easy.

Build Quality
The bumpers are made from thick nylon, flexible enough to withstand a couple of front collision at high speed, eh well, in theory. The front bumper is wide enough to protect suspension arms, while the back bumper is big enough for… bad ass looking.

The screws are standard black coated screws.

It looks cheap to be that expensive; two nylon plates for 20 USD. Let hope they look better on the truggy.

Installing The Bumpers
Installing the bumpers is straight forward; unscrew the original screws and place the bumpers under the chassis. Use the screws from the package and fasten the bumpers.

It took less than five minutes to install.

Front Bumper

Front Bumper (top view)

As you can see, I left the orginal front bumper alone with the new T-Bone Racing bumper upon.

Rear Bumper

Conclusion
The bumpers are placed under the chassis and will act as a skid. They look robust and flexible enough to absorb some low and medium speed collision (less than 40 km/h). The front bumper is wide and hopefully it can protect the suspension arms.

The price tag at 19.95 USD is a little high, but acceptable, considering the bumpers add some protection to the truggy and look nice on the Ten-T.

At high speed collision; nothing will save your truggy. The bumpers may absorb some of the impact force and limit the destruction of the truggy. Ultimately, the best protection you can get is avoid head-on collision. Easier said than done.

This hobby is about having fun. Crashing and bashing is an unavoidable part of this sport.That’s why T-Bone Racing Bumpers will be a nice companion through the journey.

T-Bone Racing - Losi Ten-T

T-Bone Racing Front View

T-Bone Racing Rear View

T-Bone Racing Rear View

OS 52 is running… (Mint Las Vegas)

I managed to mod my cheap starter box (Dynamite Torque-Start).

Modded Starter Box

.. and it’s time to test the engine.

It took me few minutes before she finally ignited. I’ve to open the needle-valve about 3 turns from fully closed possition and throttle arm within 50% of  the fully closed possition. She ran very rich and cutoff around 10% of fully closed throttle arm.

I’ve never run any 4-stroke before, but I’m quite sure she was running rich and need to tune both needle-valve and idling-mixture.

One thing for sure; she sounds beautifully.

Read more:
Read more about my Kyosho Mint Las Vegas here
Fuel tank

Kyosho Mint Las Vegas (vintage)


Kyosho Mint Las Vegas - Circuit 2000 Series

Length : 520 mm
Width : 290 mm
Height : 170 mm
Wheel Base : 314 mm
Weight : 2850 grams

Kyosho Mint Las Vegas is a 1/8 scale RC buggy, 2WD with chain transmission from the successfully Circuit 20 series. The buggy arrived to the marked around mid 80s (1984/1985) as a part of Circuit 2000 series.

I got my Kyosho Mint Las Vegas on the 12th of August 2010 with following modification:

  • O.S 52, 4-Stroke engine

  • Parry pump

Parry Pump - VP-20 Oscillating pump

Parry Pump - VP-20 Oscillating pump

  • 40 x 40mm electric cooling fan for the engine.
  • Kyosho Sand Super tire (on road)

Kyosho Sand Super

  • New shocks

A lot of work need to be done before she can hit the road:

  • Need to modify starter box to start the O.S 52 engine. (done, read it here)
  • Find a way to add a remote glow plug adapter. The glow plug is blocked by the role cage.
  • Modify carburetor for air filter. O.S 52 was an engine ment for airplane without any air filter. Before this buggy hits the road, I need to make sure she has an air filter. Alternative modification is replacing the carburetor with another carb ment for RC car.
  • Fix the fuel tank. (done, read it here)
  • Mount new RX antenna.
  • Add the brake caliper and linkage. Due to the large 4-stroke and cooling fan, the brake linkage from the servo to the caliper is blocked. She will not be road ready until some kind of brake is in place.

Kyosho Mint Las Vegas

Kyosho Mint Las Vegas

Engine OS 52 4-stroke

Engine, fan and the perry pump

User manual: (click on image)

Follow-up:
OS 52 is running…
Fuel tank
Parts list

Length : 520 mm

Width: 290 mm

Wheel Base : 314 mm

Height : 170 mm

Weight : 2850 grams

Kyosho Mint Las Vegas (Parts list)

Parts list

LD-1 Bumper (search ebay)
LD-20 Engine Mount (search ebay)
LD-22 Chain Tensioner (search ebay)
LD-24 Spur Gear Shaft (search ebay)
LD-26 Main Gear (search ebay)
LD-28 Muffler Set (search ebay)
LD-48 Decals (search ebay)
LD-29 Silicon Tube (search ebay)
LD-32 Rear Sprocket (search ebay)
LD-35 Engine Control Servo Saver (search ebay)
LD-36 Tank (search ebay)
LD-38 Mechanism Box Set (search ebay)
LD-45 Linkage Set (search ebay)
LD-70 Clutch Bearing (search ebay)
LD-76 Damper Rubber Bush (search ebay)

CB-11 Swing Shaft (search ebay)
CB-15 Ball Bearing (search ebay)
CB-28 Clutch Bearing (search ebay)
CB-51 Center Shaft (search ebay)
CB-52 Joint (search ebay)
CB-67 Clutch Spring (search ebay)
CB-72 E-Ring (E-3) (search ebay)
CB-80 Front Wheel (search ebay)
CM-81 Rear Wheel (search ebay)
CB-84 Ball Bearing (search ebay)
CB-89 Oil Damper (R) (search ebay)

SD-76 Flywheel (search ebay)
SD-54 Clutch Bell (137) (search ebay)
SD-56 Lining (search ebay)

FM-20 Clutch Sheet
FM-73 Pilot Shaft
FM-28A Flywheel Spacer

SC-85 Front Damper (search ebay)

EF-38 Strap (M)

KC-1 Main Chassis (search ebay)
KC-2 Plate Set (search ebay)
KC-3 Servo Saver (search ebay)
KC-4 Front Wheel Shaft (search ebay)
KC-5 Knuckle Arm Set (search ebay)
KC-6 Hub Carrier Mount (search ebay)
KC-7 King Pin (search ebay)
KC-8 Bulk Head (search ebay)
KC-9 Front Arm Set (search ebay)
KC-10 Rear Arm Set (search ebay)
KC-11 Arm Shaft Set (search ebay)
KC-12 Tie Rod Set (search ebay)
KC-13 Damper Stay Set (search ebay)
KC-14 Read Wheel Shaft (search ebay)
KC-15 Chain (search ebay)
KC-16 Spur Gear Mount (search ebay)
KC-17 Collar Set (search ebay)
KC-18 3 (mm) Stopper (search ebay)
KC-19 Rear Spring Set (search ebay)
KC-20 E-Ring (E-4) (search ebay)
KC-21 Joint Collar (Impacta Baja) (search ebay)
KC-22 Joint Collar (Mint Las Vegas) (search ebay)
KC-23 Screw Set (search ebay)
KC-24 Body (Impacta Baja) (search ebay)
KC-25 Body (Mint Las Vegas) (search ebay)
KC-26 Decal (search ebay)
KC-27 Brake Caliper Set (search ebay)
KC-28 Front Tire (search ebay)
KC-29 Rear Tire (search ebay)
KC-30 Stainless Disk Set (search ebay)
KC-48 Driver Doll (search ebay)

Optional Parts
==============
LD-27 Main Gear (53T) Use with SD-53 (10.6:1) (search ebay)
LD-25 Main Gear (51T) Use with SD-55 (8.70:1) (search ebay)
SD-53 Clutch Bell (12Z) Use with LD-27 (search ebay)
SD-55 Clutch Bell (14Z) Use with LD-25 (search ebay)
LD-71 Spur Gear Bearing (search ebay)
LD-79 Rear Differential Gear (search ebay)

CB-161 Quick Tank Cap (search ebay)
CB-110 Air Clearner (search ebay)
1881 Hard Oil for Differential
1880 Damper Oil
LD-82 Engine Parts for OPS & Pico (search ebay)