I was invited to join these guys racing low powered cars that initially spanned three general classes: classic GT, front engine GP, and our premiere class of mid-engine GP. The thing that all these classes have in common is the choice of motor. We pitched the original hot power plants that came with the Scalextric and other GP cars we race and replaced them with NINCO NC1 or equivalent motors. One such equivalent is BWA’s BWMS050 FF050 size motor. Basically it is the same size as the Scalextric GP motors, with a 14.35mm long 1.5mm diameter shaft. It is a drop in fit for the newer MRRC/Rev/Mon chassis. For the Scalextric GP cars, you need to trim the shaft a bit. Power and torque rating is virtually identical to an NC1, and, on track performance is very close too.
My own testing on Mini Grid's 22m Scalextric Sport Maxport II track yielded some very interesting results. I took a stock Scalextric Ferrari Sharknose, removed the traction magnet, trued the tires, glued in a few grams of lead and took it for a spin. My best lap time with the stock powered car was 14.047s. I then Swapped out the stock Scalextric motor for one of Al’s BWA motors. This involved shortening the motor shaft and and using a Slot Car Heroes 1.5mm bore 9T pinion to preserve the stock gear ratio. This simple mod dropped the car’s lap time to 11.494s. That’s right: a slower motor got this car around the Mini Grid test track over 2.5s faster! How can this be? Well, I’d attribute it to less wheel spin both in the corners and on the straights making the car just that much more drivable everywhere on the track. The best part of this mod – well, the second best part (the best part being the reduced lap time!) is the price: CDN$4 is the selling price for this mild-mannered BWA motor. Beats the US$16+ that NINCO NC1 or NC8 motors sell for! With any luck we’ll soon see an FF030 (S-Can) motor with similar performance and pricing from Mr. Penrose. I know I’ll be remotoring my classic GTs with this mill just as soon as Al has them available. If you’d like to purchase one of these motors for yourself, check out the BWA web store at www.bwaslotcars.com. Have a look at Al’s wide assortment of aluminium wheels and resin inserts while you’re there.