BRS ANNOUNCES MOTOR CHANGES FOR 2015-2016 SERIES The Buckeye Retro Series (BRS) will make major changes to its motor and car division rules for the 2015-2016 season, which BEGINS in September of 2015 with the running of the Fifth Annual Retro Summit. The BRS has announced it will switch its motor formula to the non-rebuildable Pro Slot 4002-FK (PS-FK) motor for the Can-Am and Formula One/Indy classes for the 2015-16 Series. The PS-FK will be the ONLY power plant permitted to be used in the two classes, and spec eight (8) tooth pinions will be mandated. “We tested the PS-FK motor for eight races in the Group 7-68 class in BRS and it has proven to be reliable, consistent, long lasting and very equal in performance across the board. The RETRO National Championship Series will also be using this motor next season. The RETRO-sanctioned Texas RETRO Series has been using the optional FK motor rule set during its current Can-Am and Formula One/Indy campaign, and is very pleased with the results, said RETRO Executive Director Ron Hershman. “In our opinion the PS-FK motor is, by far, the best of the low cost mini-motors currently available in the market place. It retails for only $14.00 and features a traditional end bell and external brushes, along with a triple-sealed, tamper proof security system. We feel it will level the playing field, cut motor expenses, and encourage racers from other slot racing series to give retro racing a try.” NEW BRS CLASS The third class on the BRS race card for 2015-2016 will also be changed. With the new Can-Am and the current Group 7-68 classes now being almost identical, a new World Sports Car (WSC) Coupe class, which will feature Pro Slot 4002 ‘Puppy Dog’ (PD) motors ONLY, will be added. Pro Slot PD motors may be raced sealed by Pro Slot / Fast Ones, or raced unsealed. Racers will be permitted to work on their own PD motors, if they wish to do so. Any unsealed PD motor is subject to protest, if a competitor posts a $10.00 ‘tear-down’ fee. All RETRO motor protest rules will be followed. Sealed motors will continue to use all current RETRO rules for Sealed P-S PD motors. The new WSC Coupe class will be required to weigh a minimum of 100 grams and will be permitted to use .790 min. diameter tires with a .040 minimum rear clearance rule. All PD motors will be required to use spec seven (7) tooth pinions. Only bodies listed in the approved RETRO WSC Coupe body list will be permitted. All other RETRO WSC Coupe rules will apply. (retroslotracing) “We have decided to add the WSC Coupe class to give racers the opportunity to extend the life cycle of their current PD motors,” Hershman said. Many racers are heavily invested in PD motors and the the new WSC Coupe class will provide a competitive outlet for these motors, which have provided the base for retro racing over the past seven years. Many racers have asked for a motor building class using Pro-Slot Puppy Dogs in the past using their current equipment and here is the class for that. Racers can use their current PD motors, sealed or unsealed along with their current inline Can Am/7-68 chassis and change to a Coupe body from the RETRO Coupe Approved body list and have a competitive car for this new class. UNSEALED PRO SLOT ’PUPPY DOG’ SPECIFICATIONS / GUIDE LINES … Armature Specifications Arms are to be tagged PD Arms are to be wound with 75 turns of 31 ga wire Minimum armature diameter is .512 Minimum armature stack length is .390 Maximum Comm Timing is 30 degrees Motor air gap minimum is .525 Max is .540 Stock Factory Production Ceramic magnets only. No modifications allowed including honing and grinding. NO PS-FK magnets, NO Poly Neo, No Hard Neo, No Cobalt magnets allowed. Cans are to remain unmodified. No cutting or grinding allowed on motor cans. No bending or squeezing of motor cans. Magnets are to be retained in place using clear Super Glue only. Magnet recharging or zapping is allowed. Ball bearing allowed on pinion/can side of motor(s). May solder bushing or ball bearing in place. Endbell may use oilite bushing or ball bearing only. No modifications allowed to endbell(s) Hardware on endbell is to remain stock and unmodified. Factory commutator clearance is allowed on hardware. May also use P-S replacement copper hardware. Hardware screws may be changed. Any brush spring may be used. 36-D size carbon motor brushes must be used. Any brand, type, MFG permitted. No modifications to carbon brushes allowed. Brush cream allowed. No shunt wires or spring insulation allowed. External Can type motor heat sinks and comm coolers are allowed. If its not mentioned.....its not legal.
Posted on: Mon, 12 Jan 2015 08:00:00 +0000
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