Quote:
Originally Posted by IndySam
It’s getting close to time to order the AM transmissions for the upcoming season (assuming no big changes in the game kit.) Should we order the first generation or the new trans that will take the two different motors? If we order the new style then we will also need to order the adapter kits for our older transmissions.
How can the two different motors (small cim and minibike) with different torque curves and RPM ranges work together on the same transmission? Won’t he two motors fight each other and be much less effective or do the two motors compliment each other?
Two years ago with the KOP trans we had a big problem when two cim motors weren’t well matched to work with each other won’t this problem be worse with such different motors?
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Couple of things here...
1. There is absolutely no benefit to order the original AM Shifter. It is a bit shorter, but that is it. The AM Shifter Gen. 2 can still accept 2 of the smaller CIM motors, just like the original AM Shifter. We try to make this clear on the site, but some teams still buy the original AM Shifter. The only reason we keep it available is to be nice to the teams who bought it in 2005 and they want to use it again as an unaltered purchased part (if the new year's rules allow). If we discontinued the original AM Shifter, those teams would have to buy new shifters. Now, if I only looked at this venture in a short-term financial view, this would be a good decision. However, we think this is bad for long-term growth and maintaining loyalty and respect to customers.
If you are deciding between the two versions (original or Gen.2), I suggest the Gen.2. This gives you more freedome to deal with either the 2 small CIMs or 1 small and 1 large CIM or just one of either. Therefore, you have more flexibility to handle whatever motor combination FIRST gives to teams on Jan. 6th.
(plus... we have more inventory in Gen.2 side plates)
2. Combining motors in a transmission or a geartrain is really not that big of a deal. As a rule of thumb, try to match the motors' free speed. If you have more confidence in one motor than the other, make it turn at a rpm closer to it's free speed than the other motor. The farther you get away from matching that exact free speed lessens your optimal power efficiency, but even if the match is out by 15-20%, there is still a power boost.
3. In general, when you add in a motor, you are adding in power to the system, not drag.
Andy B.