tamiya 47508 1/10 Porsche 956 coming!

[compass 195]

does anyone know if f103 or f104 tyres will fitt this car ?

[Pylon80 3688]

On 9/16/2024 at 1:37 AM, compass said:

does anyone know if f103 or f104 tyres will fitt this car ?

If the Porsche is like the other group C's then F103 (foam) tires are way to small in diameter. The rear also falls way too short in width. Then with F104 (rubber) tires, the front will look decent but the rear will fall short in terms of width by at least a whole centimeter! Depending on your standards that's either quite comical or that's a great hack.

Don't let the group C foam tires deter you. They last a while, provide outstanding grip and they are easy to find, especially with the recent re-release plus now this new release.

[mtbkym01 4246]

Finally able to pre-order in Aus, hopefully guaranteed 1, possibly 2 if I really need 2 😂

[middleagedgrup 239]

28 minutes ago, mtbkym01 said:

Finally able to pre-order in Aus, hopefully guaranteed 1, possibly 2 if I really need 2 😂

Excellent news. N+1 that's the rule, right? 😂

[REIS999 14]

Hi everyone, I'm wondering....

in your opinion, which Tamiya aluminum shock absorber can replace the ugly plastic one that comes standard?

[moffman 6024]

1 hour ago, REIS999 said:

Hi everyone, I'm wondering....

in your opinion, which Tamiya aluminum shock absorber can replace the ugly plastic one that comes standard?

I would imagine if it’s the CVA it probably could be replaced with a hi-cap? But the problem would be that the hi-caps only come in a pack of 4! But I’m almost sure tamiya did an upgrade for that chassis? Don’t quote me because I don’t really know a lot about those chassis!

[svenb 4240]

1 hour ago, REIS999 said:

Hi everyone, I'm wondering....

in your opinion, which Tamiya aluminum shock absorber can replace the ugly plastic one that comes standard?

Tamiya 53901

Most touring car dampers will work but not the M-chassis short or super short type's 

[middleagedgrup 239]

1 hour ago, REIS999 said:

Hi everyone, I'm wondering....

in your opinion, which Tamiya aluminum shock absorber can replace the ugly plastic one that comes standard?

Tamiya 53901 - TRF Special Damper F103GT OP-901 is the answer. 👍🏻

[OoALEJOoO 3283]

On 9/16/2024 at 10:37 AM, compass said:

does anyone know if f103 or f104 tyres will fitt this car ?

It is possible, although as @Pylon80 mentions, the fit is not straightforward. When using F104 wheels and tyres:

• The front is just slightly off, although it is a direct fit.
• On the rear is a different story but it is possible with some modding. The diameter is quite close to the foam tyres, but the total width is way too small. If you add a mounting plate to the back the F104 wheels, you can mount them with screws, just like the foam wheels. After that, a few spacers on the shaft is all that's needed.

I've done this on my Mercedes C11, which runs wonderfully on F104 wheels & tires:

[Pylon80 3688]

2 hours ago, OoALEJOoO said:

If you add a mounting plate to the back the F104 wheels, you can mount them with screws, just like the foam wheels.

I would love to see a picture of that mounting plate.

[OoALEJOoO 3283]

On 10/3/2024 at 3:49 PM, Pylon80 said:

I would love to see a picture of that mounting plate.

The plates were made from a Tamiya Plaplate, I think it was 2mm thick. A large central hole was drilled to clear the wheel hub, two holes 180deg apart for the screws to go through, and multiple holes in the periphery to allow pebbles & dirt to go out. The disc was attached with CA glue. Because of how the screws enter on the outer side, you can see they do not go parallel to the wheel axle, but a little bit crooked. Torque is transmitted through these screws.

Here you can see how the screws go in. Because the wheel has 7 pairs of spokes, the screws must go each on a different type of opening. The ID of the rim had to be shaved a bit to reduce the amount of crookedness. Similar to the regular foam wheels, you can align the wheel by alternating & tweaking the screw's torque as you tighten them.

As far as wheel & tyre balance, the result was comparable to the stock setup (both stock foam wheels or stock F104 rims on a F104). I've run about x10 5000mAh batteries using a Sport-Tuned motor in parking lot racing and so far is holding well.

To get the proper track width, I can't remember if the stock axle & parts were suitable. Below a picture of the current state, which seems to be an aluminum F104 setup, carbon shaft, plus spacers (two bearings!).

[Superluminal 3896]

Looks like you may have used a longer carbon shaft with a couple of extra bearings to run the allow hub outboard of the motor plate

[TurnipJF 10245]

F104 wheels and tyres bolt straight on at the rear of the Group C chassis, but you lose 8mm of track width each side.

Standard Group C wheel and tyre fitted on the left, F104 wheel and tyre on the right:

 

They are virtually identical in terms of diameter, and not vastly different in terms of width either due to the Group C tyre being narrower than the wheel. My plastic ruler says the tyres are 5 millimeters different:

 

Having been asked to widen the rear of my mate's HPI F10, I considered several alternative approaches, and found the following arrangement to be both simple and robust:

I made a longer axle, cut a pair of spacers from a tube with an I.D. matching the axle's O.D. and fitted a Schumacher long shanked pinion to take drive out to the repositioned spur gear.

An arrangement like this with an axle 16 millimeters longer than standard and a pair of 8 millimeter spacers coupled with the long shanked pinion of your choosing would let you run F104 wheels and tyres on the back of a Group C chassis with no special machining or alignment issues to cope with and would work whether you are using the standard plastic motor pod or an upgraded aluminium one.

 

[OoALEJOoO 3283]

7 hours ago, Superluminal said:

Looks like you may have used a longer carbon shaft with a couple of extra bearings to run the allow hub outboard of the motor plate

Digging a bit more, it turns out I used the F104 carbon shaft 54162, which is standard length. The majority of track width was gained by keeping A2 and using the wheel plates. To gain the last bit of width, all connections to the shaft were done in their furthermost position, with some of the flat portions of the shaft extended by filing so that the setscrews landed further out. Slack was taken by the two bearings shown on the picture.

[Carmine A 2455]

Let's just thank the RC Gods.... that it's NOT sitting on yet ANOTHER TT-02 or TT-01E chassis!! 😮

[zuqbu 72]

German shop RC-Kleinkram claims on their Facebook that at least for the European region the release may be later than anticipated:

The public sales date on 24.10. can NOT be kept under current knowledge of the situation.
A new date can only be estimated. We estimate the date to be November 8th and hope that we are wrong and that the good piece arrives before then.

[Raman36 1717]

On 10/4/2024 at 8:17 AM, TurnipJF said:

F104 wheels and tyres bolt straight on at the rear of the Group C chassis, but you lose 8mm of track width each side.

Standard Group C wheel and tyre fitted on the left, F104 wheel and tyre on the right:

 

They are virtually identical in terms of diameter, and not vastly different in terms of width either due to the Group C tyre being narrower than the wheel. My plastic ruler says the tyres are 5 millimeters different:

 

Having been asked to widen the rear of my mate's HPI F10, I considered several alternative approaches, and found the following arrangement to be both simple and robust:

I made a longer axle, cut a pair of spacers from a tube with an I.D. matching the axle's O.D. and fitted a Schumacher long shanked pinion to take drive out to the repositioned spur gear.

An arrangement like this with an axle 16 millimeters longer than standard and a pair of 8 millimeter spacers coupled with the long shanked pinion of your choosing would let you run F104 wheels and tyres on the back of a Group C chassis with no special machining or alignment issues to cope with and would work whether you are using the standard plastic motor pod or an upgraded aluminium one.

 

The blue rear motor pod is from the F100 series?  

[TurnipJF 10245]

1 hour ago, Raman36 said:

The blue rear motor pod is from the F100 series?  

Well spotted! Yes it is. 

If you fancy trying something similar, there is a build thread with part numbers here:

 

[Nick-W 1857]

3 hours ago, TurnipJF said:

If you fancy trying something similar, there is a build thread with part numbers here:

Please approach this thread with caution. It can lead to getting rather carried away… 

[RennsportEd 161]

On 9/14/2024 at 12:50 PM, RennsportEd said:

Thank you!

I just noticed that on the box art as well as on all the pictures of the finished car that it’s missing the Shell and Dunlop decals on the body as well as the tire sidewalls. 

[ChrisRx718 4701]

Just realised a subtle irony!

My Mini-Z MR-03 LM is running a Porsche 956 body (you only live once) 

The 956 Mini-Z wheels seem pretty hard to get hold of, but I got some Mazda 787B wheels really cheap.

I pre-empted Tamiya by about 2 years 

 

[joeling 1856]

An idea if bearings are included ?

[scoobybooster 342]

19 minutes ago, joeling said:

An idea if bearings are included ?

Are you crazy? Preferably a gold-plated rear axle too, huh?
We're talking about Tamiya here, where the good old tradition of plastic bearings is still upheld

Joking aside now: I don't know by heart right now, but have a look at tamico facebook, there is a detailed unboxing video where you can see exactly what is included.

[Tamiyastef 2727]

1 hour ago, scoobybooster said:

plastic bearings

In this kit we're talking oilite bushings 

[Tamiyastef 2727]

Better late than never, got my pre-order in at my LHS today. Happy days.