i cant believe this mod i did it a long time ago with my palm runner and it was beating mini-Z's but now that i do it with my ZZ i was so amazed thank you for sharring this this is the best mod i have done since i got my 3.2 motor back in
i spin the tires on everything but i do have stock gears i have also spun the gears with a 3.8 motor(with body off) with this mod i can almost get the 4.0 to spin but it just vant do it