[shinytopman]

Thats unusual for an xray as they realy are tanks.

I would strip clean and check everything, replace anything that has bad threads into plastics or metals for that point and rebuild maticulasly, it will pay dividends in the end as you will get to understand the chassis better when it comes to setup and or repairs.

Check all your bearings are free. Check your drive shaft joints for freedom, broken parts and lub.

Make sure your belts are adjusted properly, you don't want your rear belt to tight as it will drive like a rear wheel drive car and as they nail the throttle it will want to step the back out.

Hope you get it sorted.

On another note as has already been mentoined have you thought of GT12? Does the club you go to run GT12?
It really is a great class, its cheaper than TC's, not as fast but very competative, the cars are fairly simple and very robust indeed.

HTH's
Shiny.