The USVTA now has a new motor rule in effect for this the 2010 2011 season.
Here's the link to the association's website rules:
http://www.usvintagetransam.com/rules/index.html
here's the exact wording from the national association:
Motor Specifications:
25.5 brushless with 2C LiPo: Novak SS25.5 Pro brushless motor (pn:3425V) or Ballistic 25.5
(pn:3625V- stator only pn:S6625) ONLY combined with any ROAR-approved hard-cased 2C 7.4v
LiPo pack up to and including 5000 mAh capacity. Novak motors are the ONLY motor allowed at
this time. All house track rules regarding LiPo usage apply. Only physical motor timing advance is
allowed, however Ballistic motors must not be advanced beyond the timing range sticker. 12.3 mm
rotor diameter only (no "tuning" rotors are allowed, only stock Novak rotors allowed).
Approved ESCs:
Novak-
GTB series part numbers:1710, 1711
Havoc series part numbers:1732, 1733, 1735
Slyder part number: 1712
XBR (DISCONTINUED) part number:1720
LRP
A.i. Brushless Reverse part numbers: LRP80100, LRP80150
SPEED PASSION
Cirtix “Stock Club Race” ESC part number: 12280
Battery Specifications:
2 cell ROAR-approved LiPo hard cased, 5000 mAh limit
