Tested the Sonic this weekend in 17.5 12th. I was only able to try out one gearing/timing combo; 100mm rollout @ 40deg timing with the stock rotor, based on Mike's suggestion above.
I spent the day Saturday racing with my Revtech... I have done about 3 weeks of testing with the Revtech, and tried roughly 13-15 different rollout/timing/rotor combos until I have finally found something that works quite well on our track and for my car and driving style.
On Saturday my best lap with the Revtech was a 10.17s... The car is pretty consistent and doesnt fade too bad. But obviously a 1S lipo is going to progressively lose pace over the course of 8mins.
Sunday morning I tested out the Sonic. First pack with it yielded a few 10.0s and many low 10s... I only got ~4-5 mins on the car and traffic was pretty bad. So I wont be able to tell for sure how much fade there is until I use it in a race environment. Regardless, the lap times looked promising compared to Revtech. It is definitely as fast
. With more tweaking, I believe there could potentially be slightly
more speed in the Sonic than the Revtech in 17.5 Blinky 12th. I am more interested in whether or not the motor lives up to its reputation of "lack of fade". I wont be racing 12th again for 2 weeks, but I am going to keep the Sonic in the car.
For our track/layout, I think 100mm rollout may be a bit too high though. I am going to gear down a little bit. Obviously I impressed, though... A 10.0 is the fastest I have gone with the Revtech after LOTS of tuning/playing. To match that with the first swag using the Sonic bodes very well...