Posts filed under ‘RC Car Racing’
Tamiya FF-04 with TRF 211XM 4 gear transmission component design
Design work of the carbon fibre main chassis, top deck and front damper mount on the Tamiya FF-04 with a TRF 211XM 4 gear transmission, the 2016 test car
Read details about the car here https://kentech.wordpress.com/2015/09/19/ff-04-evo-g4-the-2016-ff-test-car-20739548/
Video of track testing in september 2016
First impressions: Better traction, stability, braking and more precise on the track.
Tamiya FF-03 EVO summary
Summary of over two years racing and updating the Tamiya FF-03 EVO FWD. Major improvements:
– Design and building a normal front damper system
– Rearranging weight distribution by moving the short LIPO battery in towards the centerline.
– Taking slop out of the steering system
Now this chassis is at the end of its life for me and latest spring 2016 I hope to have a new FWD TC.
Tamiya FF-03 EVO 2015 updates
Trying to improve the handling on the FF-03 EVO by improving the weight distribution, improving the steering system and working on set ups.
Tamiya FF03EVO New front suspension
Got frustrated with the Tamiya FF03 EVO laydown front suspension so I designed and built a normal FF type front suspension. To be track tested soon.
Tamiya FF03 EVO with standard type front suspension
Tamiya FF03 EVO New outboard front suspension
Tamiya 417FF New rear damper mount
Replaced the stock 417 rear damper mount with a low and light weight custom designed version. 6 grams lighter including body mounts and more mounting positions for the dampers.
TA06-XX 2013 developments
Presenting the last development step for the TA06-XX chassis that was developed and track tested August to September 2013. The 2013 goal was to make a softer chassis because we have suspected the sligthly stiffer chassis compared to a Tamiya TRF417, did not generate enough grip.
Below: Jig for drilling and installing Schumacher Mi5 top deck supports to the TA06-XX front and rear damper mounts.
Below: Fixing points for long vertical upper chassis
Below: Handcutting/dremeling the upperdeck from carbon fibre
- Handcutting the CF top deck
Below: Fitting the topdeck into the TA06-XX chasssis
Below: Tight fit for the top deck through the motor mount and main shaft. But it worked.
Top View
Below: Car ready for first test at a national race. No pre race testing at all so it had to work.
Summary
This upper deck update was built to a very tight timeschedule because it took alot of time to figure out a nice solution for it and the end of the raceseason was approaching. Everything fitted well and worked with no major problems. The car generated alot more grip than before and laptimes were a 0.1-0.2 seconds faster. More set up work is needed to get the best out of it. This was the last develpment step for this chassis. Next step needed would be a total update on suspension, steering etc. with 2014 level components.
This has been a very interesting project. The main goal back in 2011 was to build a car that was easier to drive originating from the idea that the motor and battery should be positioned centrally in the chassis. The handling has been very good, very easy to drive and it has been surprisingly reliable and working straight out of the box. The car has been developed every year but still it turned out to be a low cost project. In 2012 the transverse battery was changed to a longitudinal position. In late summer 2013 it finally got a more flexible chassis. The laptimes have improved every year although one more step would be needed to get it up there I feel.
The plan for 2014 is to race a stock Tamiya TRF418 to set a benchmark and then again to see if something new can be made for 2015.
Presenting the Tamiya 417FF
The Tamiya 417FF / XV is ready.
Next step is to lower the motor as much as possible and shakedown test…
Ready for first test.
Tamiya TRF 417FF FWD Design
Finished the design for the TRF 417FF FWD project. It is a 1:10 FWD Front motor TC test chassis built on the Tamiya TRF 417 . Main feature is that the motor is moved back for better weight distribution and using a complete 417 steering system. The only custom made parts are the main chassis and top deck that are sent for cut out in carbon fibre. All the other parts are from the Tamiya TRF 417 V5 and XV01TC Pro.
TA-06 XX Test and Race technical report
I continue the testing programme for the TA-06 XX touring car. Still no new parts have been fitted to the chassis but I work on improwing the set up and trying different LIPO batteries to get more power from the short LIPOs used in this car.
This I have learned during the last 2 weeks:
– During pre-race testing on medium grip laptimes were 0,5-0,6 seconds off pace. But at the race when the track was a lot faster (1 second faster laptimes) because of very good track surface grip, I was only 0,3-0,4 seconds off the pace.
– My guess the reason for this is that the cars problem of generating enough grip (chassis is too stiff) becomes less important on high grip tracks. Also the increased power from the Much More Flat discharge short LIPO battery might have improved the laptimes. This battery was tested for the first time at the race.
Next step is a new upper deck that will give a softer chassis.
Slowspeed but high grip race track
TA06XX Rc Car – 2013 update and test report
The TA06XX has not been updated since 2012. The only changes are some work on the set up. The car likes a soft suspension set up meaning softer springs than what is normal on 10th scale TCs and no roll bars are used.
After the first outdoor test and race of 2013 these are the main points:
– Car is faster than last year thanks to improved set up with soft springs, no roll bars, B-B front suspension mount and softer upper deck.
– Great handling and easy to drive, but still too slow compared to the competition.
– Less power because short LIPO batteries are used. This means less voltage and the discharge curve is worse than normal size LIPOs (losing voltage towards the end of the heat). I will try Much More Flat discharge rate short LIPOs to see the effect this has on laptimes.
– Car is a little bit understeery, I think the chassis is not generating enough grip because the chassis is too stiff. I believe the key to get faster lap times is a softer chassis and I currently work on a solution that hopefully will turn out pretty nice.
Supertec 