Originally Posted by
Solara
Right now...everything is OFF ROAD, on road is just....not there.
However, the last testing with the 21.5 MMM, the super 7 red rotor is just perfect, this was tested by G12367 for small indoor carpet on 21.5 MMM
Setup:
FDR was 3.85
Yellow timing board on pin 3. (that is = 32*)
12.5 Silver/Red rotor.
I think the same can apply to 17.5...probably go to 4 ~ 4.2 final, Green board full right (30*). But we have not tried that yet.....or at least I don't have any solid test result of this.
I have been all over the map with Blinky 21.5 for USGT. The setup Solara posted here has worked very well for me and matches my driving style. 6 minute race will have motor temps at 150F (w\ fan) and the 8 minute mains I see 160F. Both cases I experience no motor fade and have equal or better pace against the current crop of other 21.5 motors.
Also, watch your Brake & Drag brake settings. With the 12.5mm rotor, you should be able to turn these settings down compared to the stock rotor. This also helps to keep the motor heat lower.
For 17.5, I think I like the 12.3mm silver/purple rotor better in the MMM. For our carpet track, this rotor with an FDR of 4.5 and yellow timing board set to the middle has worked very well.
Jimmy