Hey Everyone, I have had a Mayhem with a .26C for a couple of weeks now and I love it! The only thing I have done is changed the bell gear to a 12 tooth and now it accelerates very fast. I have Proline Road Rage street tires and do a lot of parking lot driving with this thing. I have noticed that the front tires seem to be donuting out pretty much all the time during full throttle. The very centers of the tires are showing some agressive wear. I also think that this car tends to push while making high speed turns. What is the best way to get more power to the rear wheels and get rid of this understeer? Does changing the diff viscosity really make any difference? Also if I wanted to get a $200 engine that would be mainly for pavement driving and a lot of top speed, basically I think the .26 is awsome but I want something that will make this thing scream, what engine would I want to get? Or would it put too much stress on the car if I added more power?