I did take my TB04 Pro II last weekend to the track for 4 hours of open practice. Handled pretty well but was lacking some top end, generally didn't feel as fast as the TRF417 V5 and the Xray T4 that were also sharing the track with me and running 21.5t motors. My car was quieter than there's though
I am running a Hobbywing Xerun V10 21.5t geared at 3.51fdr with 30 deg endbell timing. I changed it to 40 deg but the lap times didn't change so I changed it back to 30 deg. I think this motor will be benefit from a lower gear ratio but I can't physically fit more (unless I change the ring and pinion). My car is also very overweight (1460g).
My lap times averaged at around 21.0 seconds while the other two guys were managing 19's with an odd high 18 every now and then. I gave one of them a turn to see what they thought about the car. He got laps in the 20's and commented that it handled well but lacked top end. I changed droop settings as per his recommendation and the car felt much easier to drive fast. I started to get a few high 20's with the best lap being a 20.6.
Now I can't expect to be as fast as these guys who have been running here there for years but I think the TB04 does have some potential. I might be able to get a better idea of where the car and I stand when I attend an actual race. I am slowly putting together a setup sheet, when I have something decent I will post it up.
I am going to get a TRF at the end of the year so I am trying not to spend money on the car to get faster but instead improve my driving. I'm sure I can squeeze out another second with my current setup through better driving and tuning stuff. I do want to try and get more top end though
vivo quevas: I'm running stock block setup (plastic 1A's at the front, aluminium 1XA and 1D on the rear)