A vehicle yes, a car no! A truck is not a car and I've never heard a six-year-old say "Hey daddy look! Its a big, jumping car!" when she sees a colourful metal box on four huge rubber tyres do a jump (Big Foot). And so this brings me to websites and magazines with the word "car" in their titles and then talks, publishes about anything but cars.

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                                     Brookland National Round 6

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Mendip Round 5

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BRCA 10^th IC National Snetterton Round 4

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Well, some months with many races behind and still driving with the DAX suspension. Each race I made small adjustments on the setup not to change the whole driving of the car and finally I am at a point that the car runs great.

First of all I must say after many races there is a lot of play on the system which does not give a negative effect on the handeling, I already made a deal with my sponsor to make some drawings of the parts and he will create them from a better material with his full CNC 7 axle milling machines. A small production is possible to have some spares and maybe to give away to those who want to give it a try.
And yes, more and more people have seen the car during the races knowing this system is on it and most of them realy do notice the grip my rear end has. One driver even want to try my system on his car knowing how easy it can be taken out of my car and mounted on his car and the dad of another driver is thinking of a next winter project arround this invention.

But what have I done:

1) I had to adjust the tire wear to almost flat which does give about 1 degree camber setting

2) Also the front tires had to be adjusted to less camber to get a flat tire wear.

3) Uundersteer on throttle was still an issue and was the main thing to focus on. I was already running a short based chassis which did give me a more range on the caster setting with the upper arms to improve some steer. As mentioned the GRP 32 shore all arround did give me more steer but the Twister 35 from last year were a disaster with a lot of understeer.

4) Did go back to 1.5 degree toe-in on the rear.

5) With a new body I decided not to mount the rear trimstrip and funny enough the car is still very stable without it. At this point racing with the older Twister tires giving some understeer I could set a new personal lap record on my home track.  With the low mounted body (160 mm)  without the use of a trimstrip I had noticeable more topspeed on the straight.

6) With a new supply of GRP tires I decided to try 32 in the front and 35 in the rear, I was told some others with the normal suspensions do run the same.
And there it was, I had a very agressive steering car without a loose rear end and still a bit of understeed on throttle comming out of a corner but that was not anoying. During the GP in Apeldoorn I have bettered some personal records, not with much but knowing I was running an older Novarossi 421 engine there could be more with a newer engine.
Meanwhile the pins in the rear dogbones need to be replaced more often but the rest of the MRX4 drivetrain does hold on very well with the large forces due the high grip.

With the upcomming up MRX5 I probebly start with the standard car but I wonder how long it takes that DAX will be on it........

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