Scale Technics WRC

[Aerobert]

Awesome car. I also thinking of mudflaps from bicycle tubes and will keep an eye on yours. I love the exhaust. Do you have a link for it?

[technics]

@Aerobert Thank you! I have some restraint now about bike tubes for visually seen parts after working with the medium today actually.  
 

In my one I experienced alot of colour deviation and structural ribbing on the surface of the material which will kill the scale. I found almost no area that is completely smooth. It must vary from brand to brand but I think I’m going with some sort of plastic or rubber sheet. Or try another brand bike tube of course! 
Do share what you find / end up doing ! I
 

The original listing I bought from is here - https://buyee.jp/item/yahoo/auction/b1042742247?lang=en

 

[GermanTA03Guy]

Great car ! I wanted to do reflecting Windows too but didnt find a foil that worked... which one did you use ? Thx , cheers

[technics]

@GermanTA03Guy Thank you! I am going for “the ultimate” I’ve ever made. Yes the reflective film feels more realistic then traditional Tamiya window stickers. Mine there is no brand, I went to a art / material store and they have large rolls of any colour you want, cut off how much you want.. Find a art store  

BUT I think I saw similar things by abc hobby or pandora rc. Check Tamico or drifted.nl ! Alternatively I was trying hardware store, automotive part stores, they have aluminum foil, tape etc. lots of useful stuff.

[naturbo2000]

5 hours ago, technics said:

@GermanTA03Guy Thank you! I am going for “the ultimate” I’ve ever made. Yes the reflective film feels more realistic then traditional Tamiya window stickers. Mine there is no brand, I went to a art / material store and they have large rolls of any colour you want, cut off how much you want.. Find a art store  

BUT I think I saw similar things by abc hobby or pandora rc. Check Tamico or drifted.nl ! Alternatively I was trying hardware store, automotive part stores, they have aluminum foil, tape etc. lots of useful stuff.

I was tempted to try a roll of this I happen to have laying around (insulation board foil tape), but although pretty accurate, I don't actually like the look and haven't tried it.

I'm more likely to go old school smoke and vented rear windows, but they were more of an Evo thing:

The concept was a revelation on my 1:1 non-aircon '97 Impreza.

[Aerobert]

14 hours ago, technics said:

@Aerobert Thank you! I have some restraint now about bike tubes for visually seen parts after wotking with the medium today actually.  
 

In my one I experienced alot of colour deviation and structural ribbing on the surface of the material which will kill the scale. I found almost no area that is completely smooth. It must vary from brand to brand but I think I’m going with some sort of plastic or rubber sheet. Or try another brand bike tube of course! 
Do share what you find / end up doing ! I
 

The original listing I bought from is here - https://buyee.jp/item/yahoo/auction/b1042742247?lang=en

 

Thanks for the link. I will have a look.

Regarding the mudflaps I'm not sure how thick and flexible they should be to scale. Up to now I didn't think so much about colour and structural differences of bicycle tubes but that's an issue too. My concern was that it would be too thin and would flutter on higher speeds. Don't know if that makes sense.

So I combed through my material stock and found something different. I have some sheets of stamp rubber which I normally use to transfer colour on elevated details like badges and signs on static models as painting them with a brush often looks not so good. These sheets are 5 mm thick but that's too much. But it has the right balance between flexibility and stiffness I think of and is available in different colours down to 2.3 mm thickness. Don't know if that is still too thick but I guess I will give it a try.

[TwistedxSlayer]

This build is absolutely awesome. 

[technics]

@TwistedxSlayer Thank you  

[technics]

I made progress with the mudflaps. Found a material that is convenient enough to use. It has a bit of grain visually and is the right thickness for the scale. It’s sturdy but still flexible - easy to manipulate.

I cut it to shape and discovered I could use left over material from the food containers. The lid has the perfect diameter ( obviously, same container ) and a section in the lip which is the perfect support rail for the mudguard to slide along inside of the body where it would be hovering within the fender. It won’t be a visible area.

Beautiful 1:1 reference 

[naturbo2000]

3 hours ago, technics said:

I made progress with the mudflaps. Found a material that is convenient enough to use. It has a bit of grain visually and is the right thickness for the scale. It’s sturdy but still flexible - easy to manipulate.

I cut it to shape and discovered I could use left over material from the food containers. The lid has the perfect diameter ( obviously, same container ) and a section in the lip which is the perfect support rail for the mudguard to slide along inside of the body where it would be hovering within the fender. It won’t be a visible area.

Beautiful 1:1 reference 

Nice work. Some pics of how your mudflaps install would be appreciated when you do so. I'm guessing they work somewhat in tandem with your wheel arches, but I can't quite visualize it.

That last pic has got me hankering for a cage 

[technics]

@naturbo2000 It’ll be purely visual scale points the mudflaps. The actual grunt work is done by the dirty inner wheel fenders and the lexan / rubber I’m about to go to town and glue everything to everywhere 😃😃😅 smoke and mirrors!

[technics]

Usage update. Mixed wet asphalt and hard packed dirt. Happy with quarter throttle performance at 47km/h! Couldn’t keep it straight. Looking forward for dry concrete runs.

Temperature about 10’C/50’F 

113T/37T pinion/spur. 

My current FDR is 5.65. 

Hobbywing 6.5T combo / Reedy Zapper 110C

[technics]

Somehow it is a year later, and equally damp. I felt the urge that it was finally time to get out and to do this, not sure what took so long.

Topped up the 2S 120C, 6000mah battery, and the GPS tracking unit and headed out. Location was large two football fields worth of hard compacted wet gravel. Temperature was 3´C  .

 

I made the mistake of forgetting to run these wheels I need to have spacers in to pass the uprights. Then when I switched to my foam tires I somehow mistakenly installed them rear to front and front to rear they are wider by a third in the rear as a result I began to shave through the steering blocks and two ball cups from the steering assembly , once i realized and installed the wheels correctly I had a good 20 minute run, huge sweeping powerslides and full tilt runs across the field, I now got a top end number for this gearing.

 

70km/h at full throttle, it was damp, and it´s gravel I could still feel the tires letting lose throughout.

What a rush!

 

The damage? minimal

- a good few hours of cleanup, i might strip the chassis down completely and build it up from nothing again 

- rear inner arches gone, not that they did anything the car is a huge mess haha

- snapped rear belt

- shaved two ball cups and two steering blocks through

 

 

Next step

- more gearing, larger pinion, what can I get it up to?

- might stick to only running my "trf rally" builds on tarmac that´s dry.. run on dry surfaces only and get something that does gravel, wet, snow etc.

 

 

[technics]

Cleaned up the chassis and body. Replaced the rear belt, one turnbuckle end cup and put in the largest pinion I could without swapping out the spur.

44T pinion / 113T Spur. Let´s see what happens next time! 80km/h?

 

 

[technics]

Polished concrete, touch of fine dust, direct beautiful sunlight, silky smooth sensored motor and TRF belts doing their thing. One happy Tamiya owner!

Under braking it all looked very real like a rally car as its diving into a hairpin turn, I am very pleased. How did we do?

88km/h!! 

 

Afterwards I emptied the chassis again for cleaning, replaced :

Two arms from last accidental wheel choice, one ball cup, and installed the most aggressive Spur / Pinion combo I had available to me at present time P49T / S100T .

Can´t wait for next time!

 

 

[Pylon80]

These foam tires are really the way to go. It's so awesome seeing such a detailed scale car being run in earnest. Bravo!

[technics]

@Pylon80 Thank You! Yes. Foam is incredible.. I am on an all time excitement level of running it. I think enough time has to pass so you disconnect from the hours you’ve spent trying to make it perfect. I have a XV-02 coming to tackle any wet / mud / snow situation for the future. Dusty, gravel, Tarmac the TRF’s will continue to thrive is the plan for now. I’m thinking of maybe doing the original Subaru Colin McRae piloted to get to experience rooster tails of mud like the classic footage we’ve seen from GB rally.

[BuggyDad]

These foam tyres sound interesting. I've never had foam tyres, do they last OK? I guess they must be fairly tough to take those speeds. Are they only good on that very smooth concrete or also good on your average road tarmac? 

They these ones? 

https://wheelspinmodels.co.uk/i/80530/

Not sure whether the numbers mean there are lots of different compounds or whatever. 

[Pylon80]

47 minutes ago, technics said:

@Pylon80 Thank You! Yes. Foam is incredible.. I am on an all time excitement level of running it. I think enough time has to pass so you disconnect from the hours you’ve spent trying to make it perfect. I have a XV-02 coming to tackle any wet / mud / snow situation for the future. Dusty, gravel, Tarmac the TRF’s will continue to thrive is the plan for now. I’m thinking of maybe doing the original Subaru Colin McRae piloted to get to experience rooster tails of mud like the classic footage we’ve seen from GB rally.

The '99 Subaru is my all time favorite. Looking forward to your XV-02 build!

[technics]

@BuggyDad Foam tires absolutely get shredded but you get maximum traction on any surface you throw at them in my experience. They’re common in on-road nitro and pan car racing. You want additional traction? Cake on some “tire sauce” that’s used at rc tracks. You’ll get a few minutes of glue like traction 😆 .

The numbers ( 26-46 typically? ) refer to how quick they warm up. Higher the number the longer. I’m no expert nor competing so I never personally felt a difference. I also haven’t necessarily gone through any sets only enjoyed them and have them keep going. I’ve used them multiple scales( m-chassis, 1/12 pan car, 1:10 ) in the wet, dry, carpet, rough asphalt and polished as today.

@Pylon80 Yes! It would be fun to see the Subaru Legacy in appropriate conditions. I SHOULD however build on the already queued and promised builds. That would mean a e30. Lately I’ve been drawn to a silver one like the one below. But my gut says it sort of has to be a Rothmans 😃. Either way it needs to have auxiliary lights. 

 

[technics]

More parts for more fast. Still haven’t tried the changes I made recently. This is some more parts for the future it’s the biggest / smallest I could find locally.