Originally Posted by Granpa

I haven't built an M03 kit in ten years or so. So correct me if I'm wrong, but isn't the stock rear block on the M03 a O degree block. That's the only rear block that doesn't cause body rubbing issues on the Rover body. We had to purchase an option part which was a 2 degree block. The aluminum rear blocks didn't arrive till much later. My current race car is well over ten years old and I bought it used with a servo installed and it's back up is nearly as old.

I believe we used the 0 degree rear blocks for quite awhile. What made this all work was the original Japan made type A slicks. We used to double stuff them in front-------2 inserts in the front tires. This made them very hard and along with the hard springs in vogue at the time, made a decent handling car. Most of the tuning was tire tuning and chassis tuning was not as critical.

The advent of chassis tuning came about primarily when the TCS Series went to a Spec tire and the Type A tires stopped being made in Japan. The non Japan Type A tire was pretty much junk so we went to the original S grips which were a harder tire than the current S grips. Each tire change caused a shift in how the chassis was set up. The current set up uses much softer springs than the ones used in the past and to the best of my knowledge, no current "fast guy" uses the Tamiya Mini springs.

Now, this may all change with the current rule which does not allow using cyano on the tires. I have not run under the current tire rules and suspect that stiffer springing may return, I started having health issues so have not tried running w/out glue or been out to the track for nearly a year now, so don't know what the current set ups are.

Any how, for those of you who grew up with the rc-mini web site for info, they did very little chassis tuning and did their tuning with tires. I believe Tony used to say it was 80% tires.