Community
Wiki Posts
Search
Like Tree1188Likes

wtcc's TT-02 KR

Thread Tools
 
Search this Thread
 
Old 04-07-2019 | 10:00 AM
  #166  
walrusjon's Avatar
Tech Adept
iTrader: (1)
 
Joined: Feb 2017
Posts: 189
From: London
Default

Great Job ! You are my idol !
walrusjon is offline  
Old 04-07-2019 | 10:03 AM
  #167  
wtcc's Avatar
Thread Starter
Tech Elite
iTrader: (2)
 
Joined: Jul 2010
Posts: 2,033
From: Germany
Default

Thank you, both!

The irony is that the blue metal you see on the pictures and the blue metal that comes next week costs more than all custom parts I have ever installed in this car
I had to bite the lemon once more and ordered some more hardware. Some of it is to make the car bulletproof for a race weekend, but most of the money is to get rid of the heavy steel ballstuds and nuts I have everywhere in the chassis. I want a light and agile car for our south german asphalt tracks. This should also lower the c.o.g., because nearly all of the steel is located in the upper quarter of the chassis.

Today I focussed on details:
I aligned the anti-roll-bars and installed the set screws to take out excessive play.
The rear TT-02RR oil filled gear diff got a service and a lot of Green Slime. Unfortunately it still starts to leak after a day of running, but only out of the left outdrive...

In the front the Tamiya double joint cardans got longer axles (46mm), as the 44mm were a little too short. Luckily I had the 46mm axles at home from the KR-MF project.

Then the arms were upgraded with Awesomatix excenter ballheads and adjusted to the right height. While doing this, I had real trouble with the suspension ballcups (again). Two broke and every second had to be squeezed a lot to get rid of bending. There seems to be the need to learn how to work with this part. I thought it would be more easy...

I also installed the ULP shock absorbers. Early next week I will get RC missions short shock shafts. They recommend to use new plastic parts for their shafts, so I installed my SLP shafts to finally see the car in full:










wtcc is offline  
Old 04-07-2019 | 10:23 AM
  #168  
BladeRunner24's Avatar
Tech Adept
 
Joined: Feb 2019
Posts: 141
Default

Very nice, hard work pays off
wtcc likes this.
BladeRunner24 is offline  
Old 04-07-2019 | 11:38 AM
  #169  
jag88's Avatar
Tech Master
iTrader: (1)
 
Joined: Nov 2003
Posts: 1,281
Default

Outstanding !!! Looks like you created the 'unfair' advantage !
wtcc likes this.
jag88 is offline  
Old 04-07-2019 | 05:09 PM
  #170  
Nicadrauspro4's Avatar
Tech Master
 
Joined: Oct 2005
Posts: 1,153
From: Tatooine
Default

Your work is outstanding. From the design, to prototypes, to final results. The research, testing and re-designing paid off.

Congratulations on this wonderful transformation of an entry-model kit to an ultimate tub-chassis modified racer. You're an inspiration to many and hopefully you'll work on other kits too. I'm sure one day, you'll have your own aftermarket modified parts brand for RC kits. Congrats again!
wtcc and NutDriver like this.
Nicadrauspro4 is online now  
Old 04-08-2019 | 10:33 AM
  #171  
wtcc's Avatar
Thread Starter
Tech Elite
iTrader: (2)
 
Joined: Jul 2010
Posts: 2,033
From: Germany
Default

Thank you, Thank you, Thank you!

The shock shafts arrived from Canada. The FedEx guy hid the package on a lamp, around 1.8m high. A point where I didn‘t search and didn’t find it at first
I finished the shocks, set ride height, camber, toe, droop and tweak. Everything worked on first try, like working with a normal car. Also the parts geometry is spot on. All shocks are within half a millimeter on their ride height setting nut (I don‘t know the word...). Very cool. It seems I am full of luck with this build.
With tires the chassis looks even lower.
Remember the discussion we had a few months ago? With version 2 I would say the KR loses its TT-02 character by a huge amount. On some pictures it looks like something individual. Well, I don’t mind.


First a look on the RC mission shock shafts:






On the Hudy tweak station:




Low, lower, TT-02 KR v2



wtcc is offline  
Old 04-08-2019 | 11:29 AM
  #172  
Tech Elite
iTrader: (2)
 
Joined: Sep 2010
Posts: 2,315
From: Chicagoland
Default

So... when everyone converts to using this instead of awesomatixes....
Nerobro is offline  
Old 04-08-2019 | 11:43 AM
  #173  
1/8 IC Fan's Avatar
Tech Champion
iTrader: (102)
 
Joined: Jan 2012
Posts: 6,646
From: Holland, MI
Default

Originally Posted by Nerobro
So... when everyone converts to using this instead of awesomatixes....
they could probably save a bundle, and spares would be easy to get!
NutDriver likes this.
1/8 IC Fan is offline  
Old 04-09-2019 | 06:38 PM
  #174  
Hoyle33's Avatar
Tech Fanatic
iTrader: (15)
 
Joined: Apr 2019
Posts: 979
From: Michigan
Default

Awesome build!
Hoyle33 is offline  
Old 04-11-2019 | 10:04 AM
  #175  
wtcc's Avatar
Thread Starter
Tech Elite
iTrader: (2)
 
Joined: Jul 2010
Posts: 2,033
From: Germany
Default

Meanwhile I continue with detail work. I added all the blue screws, nuts and ballstuds. Also the expensive servo mounts, an alumium servo arm and the new hard bumper of the T4‘19. The latter three parts added weight, while all the aluminium screws shaved off more than 20 grams.
The steering assembly was rearranged to put the whole unit 2.5mm lower in the chassis. A very easy modification if you have the blue drivetrain parts. The trick is to install the steering posts from above. That is all.







Today the dust caps arrived:



Unfortunately the weather will be cold this weekend. I hope to do the first shakedown indoors in two days.
Nicadrauspro4 and G-rem like this.
wtcc is offline  
Old 04-12-2019 | 10:57 AM
  #176  
wtcc's Avatar
Thread Starter
Tech Elite
iTrader: (2)
 
Joined: Jul 2010
Posts: 2,033
From: Germany
Default



Tomorrow is shakedown time
I finished all small tasks and made new holes in the body, because of the changed body post locations.
I also used the time to measure the „fight“ weight of the RTR car:



My hope is to be 150 - 200 grams lighter than the competition to compensate for the shorty lipo use outdoors.
The straigths will be my weak point and the curves my strength, at least that is my hope...

Last edited by wtcc; 04-12-2019 at 12:18 PM.
wtcc is offline  
Old 04-12-2019 | 03:44 PM
  #177  
Tech Champion
iTrader: (2)
 
Joined: Feb 2011
Posts: 8,405
Default

From the pictures I can see an extra 40grams of rotational mass in your car's drivetrain... Hopefully you can find a lightweight front spool, lightweight rear ball diff, and a carbon fiber driveshaft....

Last edited by bertrandsv87; 04-12-2019 at 07:37 PM.
bertrandsv87 is offline  
Old 04-12-2019 | 05:09 PM
  #178  
wtcc's Avatar
Thread Starter
Tech Elite
iTrader: (2)
 
Joined: Jul 2010
Posts: 2,033
From: Germany
Default

I am totally clueless here.
Happy for any help regarding this topic
wtcc is offline  
Old 04-12-2019 | 05:38 PM
  #179  
Marcos.J's Avatar
Super Moderator
iTrader: (241)
 
Joined: Sep 2003
Posts: 33,399
From: Semper Fi
Default

Originally Posted by wtcc
I am totally clueless here.
Happy for any help regarding this topic
lmao thats bert he knows everything
Marcos.J is offline  
Old 04-13-2019 | 09:34 AM
  #180  
wtcc's Avatar
Thread Starter
Tech Elite
iTrader: (2)
 
Joined: Jul 2010
Posts: 2,033
From: Germany
Default



Back from the track. The first run was a big relief The car is working great! Already in the first laps I found a good rhythm. The car does its work in an unimpressed manner. Nothing failed, again not even a loose screw.



The track was hardly used in the past 3-4 weeks and I had to work the driving line all by myself today. With every run the line got faster. In the last run I ended up with 10.9s best laptime and an average of 11.2s the whole day. These numbers tell the story quite good (the driver was not up to his full potential, though). The car is more easy and predictable to drive than the v1. I really wouldn’t have thought, that the lower c.o.g. is as clear to feel as I experienced it today. In the first runs I had the droop set wrong (more than 3mm over ride height) and I didn‘t recognize it, because the chassis hardly rolled under load. After correcting this, I didn‘t improve much and couldn‘t see the car behaving different. Also the car is a blast over the curbs. It stays calm and allows the driver to keep pushing.
Also very recognizable are the Awesomatix camberlinks and my new carbon fiber arms. The car can take more speed into a fast corner than before. With less flex it also seems, that it doesn‘t scrub off speed in the corner middle like it did before.
The plastic parts hold up well. Well, I didn‘t crash the car even once, so they do their job.

If everything goes as planned, I will do an outdoor test on tuesday. Until then I have a load of work to do checking everything, rebuilding the differential, installing the dust covers, and so on (I finally came up with a good idea for the batterymount, too).
Oleg Babich and NutDriver like this.

Last edited by wtcc; 04-13-2019 at 09:44 AM.
wtcc is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.