TC6 4WS
06-27-2013, 04:03 AM
#62
I did some extensive testing the last two months on asphalt and carpet.
My conclusion on this project is now that a four wheel steering touring car only has advantages on high grip surfaces such as high grip carpet. On lower grip surfaces the car still has a supreme steering, but can't capitalize from it because on the corner exit it looses time. The rear cannot widthstand the on power steering gripwise and tends to loose grip and "slide" which kills some of the momentum. This also makes the car more difficult to drive than a standard tc. On high grip surfaces this problem fades or is not there as the rear will have enough grip. Other than that the car proved its potential by running very well; on the same level as the actual new chassis such as Mi5 etc.
Right now I drive the car as 2WS (no need for new parts
) and will use it in our Rubber Modified class.
My conclusion on this project is now that a four wheel steering touring car only has advantages on high grip surfaces such as high grip carpet. On lower grip surfaces the car still has a supreme steering, but can't capitalize from it because on the corner exit it looses time. The rear cannot widthstand the on power steering gripwise and tends to loose grip and "slide" which kills some of the momentum. This also makes the car more difficult to drive than a standard tc. On high grip surfaces this problem fades or is not there as the rear will have enough grip. Other than that the car proved its potential by running very well; on the same level as the actual new chassis such as Mi5 etc.
Right now I drive the car as 2WS (no need for new parts
) and will use it in our Rubber Modified class.
10-13-2013, 07:56 AM
#63
Summer is gone...
It is cold again in Germany. Time to prepare for some carpet racing!
The 4WS now a 2WS got some minor suspension changes, making it lower than ever before. I showed the conversation in the TC6-Thread some months ago and now transferred it to the 4WS chassis. I could use 200mm pan car bodies that's how low it is
Following are pictures to show how the 4WS compares to a TC6.1WC:
The 4WS now a 2WS got some minor suspension changes, making it lower than ever before. I showed the conversation in the TC6-Thread some months ago and now transferred it to the 4WS chassis. I could use 200mm pan car bodies that's how low it is
Following are pictures to show how the 4WS compares to a TC6.1WC:
how does it perform on carpet?
10-13-2013, 11:43 AM
#65
Tech Regular
I hope some designers/workers from Associated electronics are looking at this because you have the potential to move the TC6 on further even though they said they wouldnt.
10-13-2013, 12:24 PM
#66
Thanks guys!
So far the car was on the same level with actual competition TCs. This "new" suspension was for my 2wd formula car and performed flawless on asphalt this summer. Carpet 4wd is something different. The suspension works smooth. The first setup work will take place here: http://www.indoor-racing-senden.de on oct 19th. Fastest lap with TC6.1WC is 10.92s. If I could manage a 11.2Xs on saturday it will be a good start
So far the car was on the same level with actual competition TCs. This "new" suspension was for my 2wd formula car and performed flawless on asphalt this summer. Carpet 4wd is something different. The suspension works smooth. The first setup work will take place here: http://www.indoor-racing-senden.de on oct 19th. Fastest lap with TC6.1WC is 10.92s. If I could manage a 11.2Xs on saturday it will be a good start
10-13-2013, 04:16 PM
#67
Pretty impressive design !!!
10-13-2013, 04:57 PM
#68
Hmmm, it willbbe will be interesting to see how the car performs with such layed down shocks. The suspension will be very progressive now. Seems to me a very long upper link might help smooth out the newfound progressiveness (more linear roll centre change might mean a less build up of stiffness in the suspension geometry).
10-14-2013, 12:18 PM
#69
The Tc6 4ws shows promise on carpet and adjustability on asphalt... The Tires don't chirp on carpet with 4ws vs 2ws... I guess that means greater corner speed is possible, and the tighter the track, the better the Performance....
10-14-2013, 12:29 PM
#70
If the Car does well in an International competition, then everybody will want that mod for their(tc6/tc6.1) to get to the next level...... I've also seen the rear wheel steering advantage in monster trucks, and it will be the same here.....
Also, since the Car turns on a dime, advancing the throttle trim a little bit might yield even faster laptimes, but it will take some getting used to....good luck....
Also, since the Car turns on a dime, advancing the throttle trim a little bit might yield even faster laptimes, but it will take some getting used to....good luck....
10-14-2013, 01:12 PM
#71
Just got caught up on this thread. Love it.
2 servos with some mixing may be capable of even more tricks.
I've heard the new Porsche 911 will have 4ws(opposite front and rear, like yours) for lower speeds and 4ws(symmetrical) for stability at higher speeds.
It looks like you're having tons of fun and seeing results. Awesome to watch!
2 servos with some mixing may be capable of even more tricks.
I've heard the new Porsche 911 will have 4ws(opposite front and rear, like yours) for lower speeds and 4ws(symmetrical) for stability at higher speeds.
It looks like you're having tons of fun and seeing results. Awesome to watch!
10-19-2013, 10:30 AM
#73
Test run
Today I used my club duty to test my changes. The setup really sucked for the first three runs. Then the rubber tires died tire for tire, making it hard for me to judge my changes. Slow speed understeer combined with high speed oversteer ruined my fun for most of the day. Because of the lay down shocks the springs appear much softer than usual, causing the chassis to move a lot under load and making it twitchy to setup the ride height. The car was especially bad in the entry and the middle of the corner. I leaned against this behavior with thicker oil in the rear geardiff and spotted a wrong caster setup. With that setup I drove my last battery of the day.
The car was suddenly dialed in like never before. And if I mean dialed in... I mean it! The steering is faster than my eye movement
Entry, middle and exit are beautiful fast; the rear follows in fast corners and steers in the slow ones. I am sure I beat my TC6.1WC lap time today, but didn't verify it as I didn't expect such a transformation... 
Next week I am going to order AE's touring car spring set. There I will find much harder springs to cure the chassis movement
The car was suddenly dialed in like never before. And if I mean dialed in... I mean it! The steering is faster than my eye movement
Entry, middle and exit are beautiful fast; the rear follows in fast corners and steers in the slow ones. I am sure I beat my TC6.1WC lap time today, but didn't verify it as I didn't expect such a transformation... Next week I am going to order AE's touring car spring set. There I will find much harder springs to cure the chassis movement
10-19-2013, 09:36 PM
#74
I don't think you'll need to go much stiffer than blue fronts ansilver rear though...
