Ok boys and girls, here's the news you've been asking about and waiting for. Instead of waiting until the end of the summer season to make the official announcement, the decision has been made to open things up right now to not hold back any of the tracks currently looking for this option.
As of today, the 21.5/LiPo motor and battery option is now legal in all Trans Am racing running the USVTA rules base.
The website, first page of this thread and the PDF Rules sheet available on the USVTA website are all updated with the new rules. Please take the time to read them over, as there are a few other minor changes and additions, like the "no wheel covers of any kind allowed" rule. It's one of those rules that shouldn't need to be in there, but when the concept of the class is pushed, it needs to be written down for everyone to see.
Here are the new motor and battery rules for the remainder of 2008 and into 2009:
- Option 1: 27-turn ROAR stock motor: No FDR limit, bearings are not allowed.
- Option 2: 17.5 brushless: Motor timing advance is allowed. 12.5 mm rotor diameter maximum (no "tuning" rotors are allowed).
- Option 3: 21.5 brushless with 2C LiPo: The Novak SS21.5 Pro brushless motor (pn:3421) ONLY combined with any ROAR-approved hard-cased 2C 7.4v LiPo pack up to and including 5000 mAh capacity. All house track rules regarding LiPo usage apply. Final drive ratio is to not exceed 4.2. Motor timing advance is allowed.
Tracks should not dictate which motor combination a racer should choose. All three motor/battery combos have been tested to compete evenly against one another in competition with great success. If any one power choice shows a definitive advantage at a certain track, it is up to the race management to even the racing out via suggested gearing changes.
- 4 cell NiCd or NiMh batteries, 4600 mAh limit (27t brushed or 17.5 brushless option ONLY)
- 2 cell ROAR-approved LiPo hard cased, 5000 mAh limit (21.5 brushless motor option ONLY)
Please note, that like all rules packages, I consider our rules to be amorphous and always evolving entity. Should the need arise to balance and level the playing field for any
option in any way, we will do it on the fly for the betterment of the class as a whole.
If you have any questions about the new rules, don't hesitate to ask. I want to really thank the handful of tracks that assisted in testing this new option and helping come to the conclusions we decided upon.
I hope to have some more awesome Trans Am news coming up soon, as well. I think it will be a monumental leap for this class as a whole, and I'm just giddy thinking about it.
Should be HUGE news... more soon.