#42317

Anyone selling a 419x carpet used only?

Have most of you guys moved to aluminum chassis for racing on black carpet?

Hi Guys,

I am sharing with you my first two „tests” of 419WS on alu chassis. Summer season is over, I didnt have much time to run on asphalt.

Mibo (Hrotovice) first round:
- The car was excellent with alu chassis. I couldnt believe it is so much improvment vs carbon.
- I had 8x4 minutes as practice on Friday and 6x5 minutes on Saturday, overall not too much experience but good start.
- My expectation was to be competitive but not so far from P1 like I was on last season (P1 gave 0.3-0.4 sec / lap). This has been improved to 0.1 sec/lap, which was awesome knowing I am not that good fit (I have 2nd baby born recently who keeps me busy 24 hours :-))

After couple of practice it looked I will end up around P5 out of 36 drivers, some x-ray friends came to me and wanted to know my „secret” :-) (we were very competitive last season, this time I was quicker by 0.15sec/lap) however during qualify I made only one misstake - rolled - in the last corner of the last lap, 2-3 meters from the finish :-(... which cost me 5seconds. Rest of the 2 qualifies I went to wrong direction with setting changes (still I was focused on to try different setups) by chaning roll centers (adding shimps) end ended finally on P11, so B1.

I did test motor screw position, 450 oil, camber changes in front, diff oil from 5k to 7k, chassis stiffener, all screws in the chassis. What I didnt test at all: springs (If I had the time I would test them). I want to test 2.6 all around, 2.5-2.8 all around. I wanted to „free up” the front of the car, since it turned very quickly and didnt want to „manage” it with lower dual rate.
In the final B it was an „easy” win with 4-5 seconds win over 2nd. I continoued to „test” the car and this is how I ended up :-).
Overall very happy with the car and the result since I knew this is the right direction. Couple of practice more, more sleeping :-) and car will be very competitive. Still Awesomatix and x-ray the challange to beat but they are not that far :-).

XRS – Hudy
- this was the first time I visited this great place (Hudy Arena, Trencin). My hungarian x-ray friends took me over this place. Only x-ray cars :-), one awesomatics and myself with the blue one :-). A lot more time we had the chance test on Friday which bring me much closer to understand the car
- the track was „smaller” vs Mibo, on different tyres - Hudy tyres are great one - but traction was high from the begining. This time I did a lot of changes and ended up like this. The misstake I did that only on Saturday – for the final – I changed rear spring and didnt test earlier which I should. (I was running 2.7). Still my challange was the front of the car turns very quick.
- Overall very great performance, however a bit more far away from top5 (factory drivers, like Jan :-)), they were quicker by 0.2sec/lap. Of course I dont have magic charger, but anyway their car worked better and they are top guys.
I ended up in P6 in out of 16 drivers in stock category, which overall is a fantasic result for a guy who runs this game for hobby purpose and was very tired :-).


To test in upcoming races:
- shorter front track width with arm sweep (worked well) and springs will be my „key” direction, maybe 450 front, 500 real oil combination.

Feel free to share/add your comments, if you have any. Waiting for :-)Christian Donath setup after coming ETS – hopefully he will have a great position and share it.

For me next race in November, till that some relax.

Cheers,
Marton

@Marcika, since a long time I've been studying the tamiya cars (since the 415/6), two tips I can share with the tamiya racers:
-the rear roll centre is usually too low and lower than the front, both bad. What you can do is use some shims under the lower suspension holders and see if the lower and upper arms are parallel to each other, you will have to change shims under the inner camber link doesn't matter if you change inner or wheel side to have parallel arms again. To avoid that over sensitivity on corner entry use less 0.5mm of shims under the front suspension holders. To test this use a thicker rear roll bar or softer front, if it does what you want then I'm right.
-more than usually the front springs have to be stiffer than rear, they are mounted away from the wheels and that changes leverage.

Congrats on being father again.

Good results there :) I am running the alloy chassis this weekend. I have high hopes for it for the coming carpet season :)

Have a good luck and get that hope real ;)!
And pls dont forget to share how it went!

30tooth - thanks. I havent tested it but was a base setup in my previous car (417,419) with long dampers. Once i have more time i will give a try. So far, 2.6 and progressive springs worked well.(last season)

Best,
Marton

This is probably why the TRf419x has better handling out of the box. The new suspension mounts are .5mm shorter in the front.

And the rear hubs lower hinge pin hole is 0.5mm lower to have slightly higher rear roll centre. On the older cars you can add 0.5mm of shims under the rear lower suspension holders and add the same amount under tha uper inner ball studs and the effect is similar.

BAZINGA!

Hi Qatmix,

How did it go? Looks ets result for tamiya guys are great, so car is working well ;).
I am sure truck racing was great as well ;). (Unfortunately back gome no longer interest for this, before 7-8 of us run it - took the champs 2 times ;) )

Best,
Marton

Fyi ;)...overall 2nd after practice. Car is excellent! Tomorrow qualify & finals.
https://www.facebook.com/marton.toth.902/posts/10155287074503768

Great driving, good luck for today.

Sorry to ask this. I didn't see any where to buy just the aluminum chassis plate. Is this for sale by tamiya? Or is someone else making 1?the aluminum chassis doesn't come with part set 42317?is the 42317 a different chassis plate from 419x?

42317 is a complete new chassis - TRF419XR. Release is end of January 2018.

In the picture you can see on the left side the part numbers for aluminium lower deck and 1.7mm upper deck (419XWS)


https://cimg0.ibsrv.net/gimg/www.rct...f6b95b1869.jpg

3450822 Is the past number of the 419X aluminium chassis that comes with the WS kit. So far, Tamiya usa has not stocked it.

I have mine on special order from stellamodels in Hong-Kong