i found a group of people who get a vorza to 110mph! its in the radio control action, electric performance edition
they used foam tires and the gearing 24/44, they said this was the only gearing you can fit without serious modifications. also they used the 2650kv motor.
the only way hpi could...
Josh they would of have to have been, when you say they kept shredding was it the wheel or tire as if it was the wheel they should try out some aluminium wheels
Also I wonder what cool and body they used for the runs as I can imagine it would heat up like crazy and I can see them doing it...