I'm geared for around 40mph. I run a 14t clutch bell and the stock spur. My motor has hit 170 on a hot day but I usually pull it off around 140. ESC is fine, I only run 1 fan on top, no other mods. If you watch this
video I'm the one running the old chevy truck body (don't let my qualifying position deter you, this was my first time in expert). At around the 1:40 mark, Tekno and I are close, he's running a 1515 3D geared with a 13t bell. As you can see, performance is pretty close. He's got more torque, but that's about it. I don't even need it. At the start I easily go through the table top rhythm section while the nitro's case it. The back straight is around 180-200ft.