Here is some tips for the owners of the Smartech Magic Wheel. I just want to share what I've done to my car to make it better.
First of all, everybody that has a primer on the tank should remove it. Sometimes that cause air leak and gas stop entering in the carburator. What you see in black is some high temp silicone. I put a screw in the hole.
Have you noticed some oil near the header or the engine mount? This is caused by a bad design of the header. The hole in the header is too big for the gasket and after some runs, the gasket disapear and oil begin to leak.
I buyed on ebay an aluminum exhaust header from HPI (86037). That fit perfect.
If you find that the suspension on the magic wheel is too soft, you can adjust them with o-ring avaible for the T-Maxx.
But you can adjust the suspension with big straw (is that the right word? I speak french so I'm not sure...) comming from slush that you cut the size you want.
From factory, the full throttle on my controller was not full throttle on my carburator. You can adjust this by putting the linkage in the hole below the other one on the carburator and adjusting the linkage near the servo. Do some test to be sure that the throttle and the break are perfectly adjusted.
Finally, just in case that you did not know, T-Maxx and Savage body will fit on the Magic Wheel. I destroyed my stock body in the snow and ice. I buyed a savage body to replace it.
Don't forget to seal the backplate with some silicone to be sure there is no leak.
I hope this will help some people that purchased magic wheel or any smartech nitro car. Remember that allmost every parts from old .15 T-Maxx will fit the Magic Wheel. It seems that some HPI parts fit too!