Even without using turbo, the Tekin is still going to be faster than a GTB. The GTB limited you to maxxing out the timing only on the motor, to about 12deg, and this cost you punch off the line. The RS lets you keep the motor at 0 timing, for max punch off the line, and still ramps the timing up to 30 deg timing boost. I gear my car around 5:1 FDR and it will still pull any GTB powered car down a short straight, and I do not use turbo boost. (I would expect similar results with any of the new generation ESCs, but I dont own any of them). After I test on the local tracks new layout, the following week I want to put an old Xcelorin ESC back in to see how slow the car gets.