I have a TT-02RR on the way for some outdoor racing this summer. What's a good starting point for shock oil and springs as well as diff fluid? Anyone know where I could find some setup sheets? There's nothing for the TT-02 on petitrc.

With the addition of rear steer parts is the SR rear suspension update really needed ?
(does look cool though …)

Any worries about the top shock mounting moving in the slot ?

@tygertyger: Your criticism is on point. And I thought hard about how to get on with vertical posts. I couldn‘t find a solution without having to hack the parts. Custom designed parts are not allowed. But you can use parts of other Tamiya cars like the TRF suspension. With this car I stretched the rules. Nevertheless if you have a good idea let me know.

@jag88: Rear arm mount not only allows for a toe change, but also for kick up and anti dive adjustments and with it rollcenter changes. A nice improvement is, that I don’t need another brace to stop the hinge pins from falling out. Of course it was not needed much setupwise. The car has nearly every tuning part I can imagine, so why not make it perfect

@wtcc maybe try the old rear carbon stays for the tt02 (#54640). with them you can mount classic tt02 bodypost and use the hole direct under the post mount hole.

Try RCRacer, there is a lot of info on that site,
https://www.thercracer.com/2014/08/t...-and-tips.html

Look around, there is more than just that one article link I provided above. I think he even sells a top CF brace for the TT02 (yet it wouldn't be TCS legal).

Yeah, I've been reading RCRacer a lot. As an offroad racer, I'm just surprised that people put 500k oil in their front diff.

Surprised because it's so thick? Most on-road race cars use a spool up front so a super heavy fluid would help to mimic that while still giving minuscule diff action.

-melon

Yeah. It's just different than what I'm used to. If it works though... I'll give it a try.

Doesn’t matter if indoor or outdoor. A spool in front will be faster in 95% of conditions/ setup/ driving style. At least this is my experience. I know only one guy who is fast with a gear diff in front and his setup is unique.

As I am quarantined, I’m building some kits. I race with some friends in a TT League we created. It’s asphalt and concrete parking lot based, so grip is usually low to medium. I have one of the TT-02 Zakspeed Ford Capris and the body calls for the shorter 251mm configuration. I’ve always build the 257mm, but I really like that body style and nobody else is using it in our league. My question is, will this shorter configuration handle about the same or will it really affect performance. I have the 3 degree rear aluminum uprights like I usually install in my TT-02’s. Only using torque tuned motors, so the cars aren’t tremendously fast either. Thx for your help.

Shorter wheelbase = lower high speed stability on straights, better steering / turning on tight tracks.

Since you’re running stock motor, you won’t have an issue with the shorter wheelbase being unstable on straights.

I use the same short wheelbase for the 911 RSR 1973. Honestly, I can't tell the difference driving long vs short wheelbase back to back. I'm no pro but been to many TCS events, even made the podium a few times in Rally class back in the day. So from that experience, and running my TT 02. 911, go for it, it can't really hurt you at all. Might help you in the twisties, otherwise no real change.

I use the 911 RSR body in VTA... does super well. Handles great

Curious, on 2 things:

1) is this part TCS legal for the TT02/GT Pro class:
https://www.tamiyausa.com/shop/optio...ft-assembly-2/

2) Will this work w/ the TT02 "rr" and/or oil filled diff outdrives?
Tamiya says you need a specific outdrive to use their universal joints, I am assuming this is because the standard outdrives are too short. The oil diff' outdrives are a bit different than the gear diff outdrives ...so just wanted to have some clarity on this. thanks.

I don’t know the TCS rules, but this dcj will fit the oil filled gear diff.