I don't know if anyone is even asking for this information, but this is what I was able to extrapolate and execute on for myself. For anyone using a standard TT02, and you find yourself wanting to widen the width for whatever reason, but also want CVDs and metal axles/outdrives, you can upgrade to the following:

Tamiya Part #:

54394 - WR-02 39mm long CVD axles (front)
54477 - TT-02 diff outdrives (front & rear) x2
54610 - 9MM wide aluminum hexes (front & rear) x2
50883 - 39mm steel dog bones (rear)
50808 - TG10 wide rear wheel axle (rear)

The WR-02 CVDs have the same length axles as the standard TT02 upgraded set (53792), but have a wider wheel axle portion so you can attach the 9MM wide hexes and still have plenty of thread left for the wheel nut. As IndyRC_Racer mentioned, the TG10 long wheel axles provide the same width benefit for the rear of the car. I speak from experience as I have this exact setup installed on my Porsche RSR and have raced it in this configuration. The stock width of a bog standard TT02 is very narrow, so unless you have massive offset wheels, it may look a bit wonky unless you do one of the various widening methods available.

Tamiya is re-releasing it and is due out in May.

Here is a pic of the TT-02 I'm currently using in VTA. Need to upgrade the heat sink to something blue. Can't have enough blue. Currently has a plastic TA-05 battery bar that I will replace this week with the Tamiya 54555 FRP battery plate.


https://cimg9.ibsrv.net/gimg/www.rct...5fd1427959.jpg

Awesome they should also release the RR version.

Here is another stock TT-02 that I'm upgrading to a fun racer/basher/possible rally car. Red is the theme on this car.

- servo = ARMMA ADS-5 (AR390133) - plastic gear servo
- esc = Hobbywing Quickrun 1060 - 2s or 3s brushed
- dampers = Tamiya 53155 (https://www.tamiyausa.com/shop/optio...n-alum-damper/)
- wheels = Tamiya 84253 (discontinued)
- battery = Venom Reaction 50c 2S 4000mah (old battery)
- *suspension = Tamiya 54874 Adjustable Upper Suspension (https://www.tamiyausa.com/shop/optio...per-arm-set-3/)

(EDIT - I posted incorrect information about using the Adjustable Upper suspension. Thanks SIMPLE for pointing this out. Here is the correct info from Tamiya USA)
• Compatible with TT-02, TT-02R, TT-02RR and TT-02D chassis cars.
• Cannot be used with Item 54639. If using with Item 53792, use Item 42236 for adjustment.

Tamiya 54639 (https://www.tamiyausa.com/shop/optio...-stay-front-2/) is a discontinued Carbon Damper Stay Front (shock tower).

Tamiya 54947 (https://www.tamiyausa.com/shop/optio...amper-stay-ii/) is the current version of the Carbon damper Stay that can be used on the front or rear of a TT-02/TT-02R/RR or TT-02D. The TT-02 S models have their own version of a FRP or carbon fiber damper stay and adjustable camber links.

Sorry for posting incorrect info earlier.
----------

I probably will throw a red Yeah Racing 30mm fan on this kit for cooling. Not much more red the car really "needs". There is a red hard Tamiya TT-02 chassis that comes with the Mazda 3 kit (58671-A - https://www.tamiyausa.com/shop/110-4...t/rc-mazda3-2/). Yeah Racing makes a couple of different red upgrade kits but I really don't want to spend that much. There are a few other companies that make a red shaft and red steering that are much less expensive

Still figuring out how I want to clean up the wiring and if I want to mount any electronics in the battery tray (shorty lipo)

Enjoy
https://cimg4.ibsrv.net/gimg/www.rct...b14bc79ef7.jpg

My TT02 rally :D
https://cimg6.ibsrv.net/gimg/www.rct...756dff0637.jpg

That is not a correct statement.
The kit is compatible with TT-02, TT-02R and TT-02D chassis cars.
I use the upper arm kit on my mostly stock Subaru Rally
Tamiya TT-02 Rally 2008 Subaru Impreza WRCtagram.com/p/CdTjrOsrME7/?utm_source=ig_web_copy_link

Just completed this addition to my collection. Bring on the Dirt!
https://cimg8.ibsrv.net/gimg/www.rct...8cf12938a2.jpg
https://cimg1.ibsrv.net/gimg/www.rct...05feba2522.jpg
https://cimg4.ibsrv.net/gimg/www.rct...202cc85caa.jpg
https://cimg5.ibsrv.net/gimg/www.rct...0a4c604637.jpg

One of my all time favourite Tamiya bodies. They should do an update and add option for real light to it

simple How tight does the chassis cover sits above the spur gear?

I see you have opted for the The RC Racer TT-02 prop shaft holder. At least that what it looks like to me :-)

Thanks.

well clear, not even close.

Thanks.

Hello,

Noobie here...planning to join TCS Pro-Spec this year and I just have a question regarding 'Article 7: Motor Rules', specifically about installing fan/s:

• How are we supposed to install fan/s for the motor? Are "bolt-on, off-brand, after-market fan mounts that bolt around the motor circumference" allowed?
• Are 3D designed/printed fan mount/s for the motor permitted?

Any help and/or clarification are most appreciated.

Thank you! =)

my 30x30 fan bolts on the tamiya mount supplied in the kit. But then we don't race in any tamiya series events.

What does this piece look like if you don't mind posting a picture?

https://cimg0.ibsrv.net/gimg/www.rct...6ddd557425.png

Thank you. I normally don't see that part installed out on the track.

It might be since this raises the CG (center of gravity) higher, which most touring car racers DON'T want.
I usually stick my fan on the chassis with double stick tape.

Tamiya #58702-60A (TT-02 Chasis)
Subaru BRZ (ZD8)
Wheels/Tires shown are included with the kit
Body includes black molded side mirrors with silver "mirror" stickers (I used red vinyl instead of the included kit blue upper stickers)

Interior body paints (Tamiya "rattle" cans)
PS-37 Translucent Red
PS-36 Translucent Silver (used to back PS-37)
PS-52 Champagne Gold/Anodized Aluminum (used to back PS-36)
PS-31 Smoke (applied last)

Exterior paints
PS-5 Black (front grill & lower rear valance)
Clear matte (spray over PS-5 to dull/protect the finish)

LIght buckets
PS-5 Black (front light bucket)
PS-41 Bright Silver (rear light bucket - not visible in these photos)

I will try to get a better pictures using natural light to replace these photos. These were taken with a cell phone indoors with no flash. In person the color is much more red/vibrant with a metallic look. I put down a several light coats of red, backed with translucent silver, backed with champagne gold/anodized aluminum. I then took off the window masks and put down several light coats of smoke.

I painted the front grill and rear lower valance from the outside (by peeling back some of the over-spray film and masking with tape) using black covered with a matte clear. In hindsight I would have also painted the front lower spoiler from the outside as I didn't like the stickers for this area of the car.

The kit includes window masks, light bucket masks & lexan light buckets. You can see the front buckets through the clear sticker at the front. The front light buckets each have several small stickers to replicate light bulbs. The rear lenses on the body also have several small stickers. If this was a race body, I would remove the buckets and put a silver or black sticker to cover the front "lens"

Overall a relatively easy body to paint. Be aware like many Tamiya bodies, you have to cut out the stickers and the window/light masks. In total there were over 70 individual stickers to cut out.
https://cimg4.ibsrv.net/gimg/www.rct...3d9290ef72.jpg
https://cimg8.ibsrv.net/gimg/www.rct...b5da9c6a10.jpg

Hello,

Thanks for the suggestion/reminder...I already forgot about that part. On the TCS rules, they allow up to 40mmX40mm fans though...I wonder what they will allow to use as mounting for those.

Thanks again! =)

Hello,

Thanks for the suggestion/reminder...I already forgot about that part. On the TCS rules, they allow up to 40mmX40mm fans though...I wonder what they will allow to use as mounting for those.

Thanks again! =)[/QUOTE]

Some people say the TT-02 is enough for an introductory kit, but there seem to be quite a few bad reviews as well.

In particular, a lot of people say that the steering gap is so bad that it is difficult to control it as I want and that it is not easy to drive straight.

What do you think? Is the TT-02 really a terrible model?

If you have any tips or required options to address the shortcomings mentioned above, I would like to know.

As always: it depends. What are you trying to do with it? If you take a standard TT-02 and want to race it in an open class, against top tier touring cars, you'll be at a serious disadvantage. My fully hopped up TT-02 SR is actually super easy to drive - of all my cars, this is the one I'd hand over to a beginner, as it is just so good-natured to drive - but I wouldn't call it competitive (although I have to admit, I never really tried because of different race class regulations).

But again, this is a) fully hopped up and b) it's the Type-S suspension, not the standard TT-02 one. The standard TT-02 is a cheap plastic car with some (although quite limited!) potential. For racing there are much better alternatives out there.

My TT02R came out dead straight. But to achieve that, I had to set my servo to 90 degrees, made sure the linkage was long enough so both links were equal in position, and set the toe to 1 deg out on my setup station. After that, I just put it on the track and drove it.

For the most part the TT02 is a good driving car. When you build it follow the instructions. In the basic TT02 there is a little slop in the steering and of you over tighten certain screws it can effect the steering. The upgraded versions are even better. My only complaint is that sometimes the steering uprights break. There are a lot of tracks in the U.S. that have TT02 classes.

Am I asking for trouble running the front diff locker on my TT02R with the dog bones? If so, I have the original gear diff I can fill with Traxxas 20 million fluid, which is what I use in my TT01 euro truck without issue. Strictly raced on asphalt.

Lucas redntacky or any really thick grease works well. If run ear plugs or totally lock the diff you're going to break things. A little give will save you a lot without a major falloff in performance. In fact I'd say it will increase your odds of finishing rather than a dnf.

My answer was geared more towards the tt02 but for the R, yeah I'd use the thick oil over a locker.

TT02 Front Uprights
 

Hello,

For ProSpec class in TCS in California, is it allowed to grind the steering limiter in the front uprights?

Thanks in advance =)

No

ARTICLE 3: GENERAL RULES APPLYING TO ALL VEHICLES
3.18 Any modification on a car, not called out specifically in these rules, is prohibited.
3.4 It is forbidden for the hobbyist to re-engineer, or alter the car, in any way other than with Tamiya Hop-Ups, or kit supplied accessories.

Got it...thank you =)

THE MOD IN THIS POST WOULD NOT BE TCS LEGAL

I recently installed a brushless motor into my TT-02s. The fan shroud was hitting the motor wire posts on the motor. I used a spare shroud, dremel, and cutting disc for a quick mod. This only took a few minutes. Basically I cut a corner off and the shroud no longer interferes with the wire mounts on the motor. Here are some pictures of the mod and the shroud mounted on the car.

I probably could have cut less off the shroud, but I thought this modification looked pretty clean.

- motor is a Hobbywing 21.5 sensored/fixed timing that was part of a 21.5/Justock ESC combo (discontinued)
- fan is a Yeah Racing Tornado High Speed Fan # YA-0180BU (30mm x 30mm) (https://www.yeahracing.com/tornado-h...180bu-00030330)

Hope this information is helpful.

https://cimg4.ibsrv.net/gimg/www.rct...026e79703f.jpg
https://cimg8.ibsrv.net/gimg/www.rct...5470d216a1.jpg
https://cimg0.ibsrv.net/gimg/www.rct...27fc57cf01.jpg

Hey Ryan
No Doubt I will coming down to have fun ..I came down last year and had great time

Hey angrymelon
I came down to the Rose city ,Hmm where is Ryan , oh well it was just two week ago :(
I might be coming down next races on the 15th ,just maybe , it depend on birthday party on the 14th friday night

https://zupimages.net/up/23/14/10ax.jpg
https://zupimages.net/up/23/14/nuht.jpg

Hello,
Difference please ?
What is better for carpet ?
Thx

question :
if you are racing TCS ,.the top picture is the TCS legal for TT02R.or RR .
The bottom picture option part is for TT02S only
the bottom pic has the better turning setting for the ackerman set .which is better for track grip condition .top picture is more for stock spec

Is bottom fit on TT-02R type with stock arms ?

Tamiya 54965 TT-02 RCType-S Alum Steering Set (Long Tie-Rod) (https://www.tamiyausa.com/shop/optio...-steering-set/) is designed for the S type kits

Tamiya 54752 RC Steering Upgrade Parts (https://www.tamiyausa.com/shop/optio...upgrade-parts/) can be used on ANY of the TT-02 on-road kits

I have both of the Tamiya aluminum steering upgrades on my TT-02 S kits. I feel the long tie rod set has less bump steer. Ackerman is also easier to adjust. Here is a decent review of 54965 the The RC Racer website...https://www.thercracer.com/2020/10/5...-aluminum.html

One thing that I would recommend is that if you use Tamiya 54752 is that you use a 3x23mm screw (inserted from the bottom of the chassis) and a thin locking nut to attach the steering posts to the chassis. You can see this being done on page 14 of the TT-02sr manual. The long step screw that acts as a steering post on the basic TT02 can get ripped out of the chassis in a big collision. While this isn't a big deal if you are using a stock chassis, it can be very difficult to replace one of the colored chassis (red, white, or blue) and it can also be hard to get a carbon reinforced plastic chassis at times.

Here is a link to the Tamiya manual download page (check page 14 on the TT02sr manual)...https://www.tamiya.com/english/rc/manuals.htm
Here is a link to the TT02sr kit on Tamiyausa. (check out the pictures that show the steering)...https://www.tamiyausa.com/shop/110-4...r-chassis-kit/

I hope this information helps.

----------

There are plenty of aftermarket companies that make aluminum steering racks for the TT-02 that are similar to the Tamiya 54752. The Yeah Racing kit gets good reviews and is less expensive. There are also aftermarket companies that make steering racks for the TT-02 that offer extreme ackerman angles which is good for drifting.

Here are some other options to upgrade the steering components on all TT-02 kits. For TCS racing, always check the class rules to see which Tamiya upgrades are allowed.


- Tamiya 54574 aluminum steering parts (bridge not included) (https://www.tamiyausa.com/shop/optio...ing-steering//)
- Tamiya 54575 aluminum steering bridge only. (https://www.tamiyausa.com/shop/optio...eering-bridge/)
- Tamiya 54754 complete steering upgrade with servo saver (https://www.tamiyausa.com/shop/optio...upgrade-parts/)
- Tamiya 54799 TT-02 Hi-Torque servo saver with aluminum horn (https://www.tamiyausa.com/shop/optio...e-servo-saver/)

Thanks for all information but just want to know if 54965 (long tie rod) could fit on TT-02R without chassis modification ?
If yes, it's better than old 54752.
No problem for the belgian rules, just can't use type S arms and carbon parts

Also the new steering may not work with the standard TT02 suspension. The S has longer arms and different steering knuckles.

Stick with the standard version.