Reply To: BRM GROUP C DISCUSSION

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#14388
Avatar photoBarkingSpyder
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    PEANUT GALLERY
    — The posted BRM GP-C rules seem to be missing the update regarding the Scaleauto ProComp SC2424p rear wheel tire assemblies. The BRM S-021SS are still spec’ed.
    — Sponge/foam tires typically work best with some corresponding product on the track. Remember that when we ran at Dallas the track had a very light glue on it (it was not ‘tire cleaner’) that they also used for sprint races and other 1/24 classes.
    — Have the 22-Shore BRM tires (S-020S) been tested? …just asking…
    — MOTORS – so Pink has lowest RPM but most TQ (340gm); has anyone tested the Red motor with 212gm TQ – perhaps there would be less fishtails with the lower torque?
    — RANDY – it’s ‘rear tires … not less than 27.5mm …’ (1) this happens to be the stock diameter of the SC2424p so the implication is that only basic truing is allowed/or needed (2) a smaller O.D. either by wearing or truing would be a slight advantage from getting the CG lower.

    ?? TIRE QUESTION – What does this statement mean ‘You are not allowed to true any tires with an angled profile’? I don’t think we have a razor style truer that would make tapered cone shapes possible.
    Is this just another Cling-on from the specs inherited from Alan’s series (inherited from Euro rules)?

    "... get on your bad motor scooter and ride!"
    Sammy with Montrose

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    BarkingSpyder

    At 4-years old in Pensacola I repaired my steering linkage on my Ford Pedal-car. Dad later converted this car to a Blue Angel with ailerons and elevators with a working "stick/yoke"; the rudder was controlled by the steering wheel. I like all motorsports - I grew up going to a NASCAR Feeder track with Sportsman and Modified classes, and was lucky to attend drag races in 1970 at Orange County Raceway. My first solder-iron was a Christmas gift at 9yo; I modified T-Jets to be AFX spec before AFX Cars were in local stores. I rebuilt a few tractor & car (SIMCA) engines plus transmissions by 15yo (I still have my ring-compressor and valve spring tool) I am a former mountain and road bike geek & perennial sound engineer. Struggling guitar hobbyist and Amp "tweeker"