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Post by SKR on Aug 22, 2009 7:11:15 GMT -7
Things that need discussed
Armatures: Ohms, Balanced?
Pick Up Shoes: Braids & Shunts?
Wheels & Tires: Slip on silicone? Silicone Foam tires? Realistic appearance of 1/1 wheels.
Gears:
Volts Biggie size or Small?
Weight Limit ?
Other?
__________________________________________________________________________
Making progress:
N/PS 1968-1979 Bodies
Chassis: Original Aurora, Auto World, Johnny Lightning
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Post by dave hochallanged evans on Aug 22, 2009 7:29:08 GMT -7
Wheels;slip on silicone,stock or realistic apperance may radius wheel well but not to top of fenders say within 1/32nd must remain, arms;balanced minimum 6 ohms, Pick up shoes; braid and shunts,Gears; stock for chassis
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Post by derwood16 on Aug 22, 2009 7:43:42 GMT -7
how would these rules sound?
Class A: 13.0 ohms minimum
ARMATURES: As delineated above. Accepted armatures are any production Stock armatures. Armatures may be balanced and blueprinted and/or bonded. Commutator plates may NOT be turned and trued. Armature may not be retimed, rewound or dewound.
AXLES: Any axle may be used. Axles must ride in appropriate location for given body style.
BODY: ANY North American prototype, years 1968- 1979 is permitted. With the specific exclusion of FUNNY CARS, PRO MODS and DRAGSTERS shall be permitted.
BRUSHES, MOTOR: Any conventional brush which fits original mountings is acceptable After-market brushes may be used. Spring brushes may not be used. Brush tubes are not permitted.
CHASSIS: Cars in this class must use a T-JET, TUFF ONES, JOHHNNY LIGHTNING OR AUTO WORLD chassis. ULTRA “G” chassis are permitted. Chassis may have any and all of the following: de-burring, clearancing, polishing, hardening and/or blueprinting. Main chassis may NOT be altered. Chassis types may not be intermingled.
GUIDEPIN: Only one guide-pin, in original location, is permitted. Guide-pin retaining screw is required, and pin may be secured additionally with glue, or heat-bonded to chassis. Any guide pin which does not “bottom out” in the slot is permitted.
GEARS: ANY gear ratio is permitted. After market lightweight gears, or billet type gears, are not permitted. Gears may be polished and ‘lapped’ but polishing may not excessively lighten the gears. Plastic gears may be used. Crown gears may be aftermarket of same tooth count as original.
MAGNETS: JL/AW magnets or lesser, only. Traction ‘Dot’ Magnets (2 maximum) are allowed.
PICK-UPS: Original JL/AW T-Jet or replacement type, copper silver gold plated/ non-plated pick-ups are permitted. Pick-up braids are permitted. Shunt wires may be used.
TIRES, REAR: After- market racing tires are permitted. All four Tires must be of sufficient diameter so as to contact track when car is in a normal on –track attitude. (note: front tires need only be close to touching at Meet director’s discretion.) Tires may be bonded to the wheels. Minimum diameter .382”. Maximum diameter allowed is .485” Maximum tire width shall be 9/32.” Tires must be black. Coated foam tires are not permitted. Tire must be of rubber or silicone or similar compound commonly used.
TIRES, FRONT: Front tires shall properly fit class legal front wheels. Touching tires is the ultimate goal but local ground rules may permit NEAR TOUCHING tires at the meet directors discretion
WHEELS, REAR: After Market aluminum or mag type wheels are permitted. Wheels should be similar to a prototype wheel.
WHEELS, FRONT: Front wheel may be of smaller diameter and tread than stock T- JET. Wheel diameter must be no smaller than 75% in height, as determined as nearly as possible by meet director. {this allows smaller wheels, but not microscopic wheels} WIRE WHEELS (motorcycle wheels) are not permitted. Front wheels and tires may not EXCEED the dimensions of rear Tire/wheel sets.
WHEELIE BARS: Wheelie bars are permitted. They should assume a reasonable prototype appearance. Total extension of wheelie bars shall not exceed 1 1/4 inch. Extension is measured from center line of rear axel to center line of the wheelie bars axle.
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Post by dave hochallanged evans on Aug 22, 2009 7:57:16 GMT -7
ruels are good but I think traction magnets should be left off to seperate it from Ratt and Gasser class
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Post by kdog on Aug 22, 2009 9:00:35 GMT -7
I am starting to love this Pro stock class ;D, you guys go !
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Post by rickvoegelin on Aug 22, 2009 9:01:02 GMT -7
Sam,
When I wrote "styrene" I was referring to the injected plastic JL and AW bodies, not vacuum formed lightweights. I agree that we should restrict to resin and injected plastic bodies for realism in N/PS.
The plastic bodies are typically one or two grams lighter than a typical resin body due to the thicker sections in the hand-cast bodies. If we can grind the resin bodies internally, then there'd be no significant difference between the resin and injected plastic bodies, and we could support our resin-casting friends and sponsors.
I think I'm up to at least 4 cents by now.
Thanks,
Rick V.
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Post by SKR on Aug 22, 2009 9:25:58 GMT -7
Got you Rick, I was thinking along the lines of the vacuum formed ones.
How about the weight rule? I think it's the best route to go because some of the cool bodies are a bit heavier. I can add weight to cars that come under weight for those that don't have a scale.
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Post by allstarhr on Aug 22, 2009 9:42:10 GMT -7
Looks like Derwood16 has it down pretty good.
Maybe add that "brushes may be notched" and any North American prototype body "of a typical for the period Pro Stock". ( No Caprice Cop cars etc. )
I also like the lower voltage at one battery and charger for 13.8 volts. It will help keep them in the groove if the wheelie bars aren't adjusted perfectly. I'm sure Rick V and 440GTX will agree since their Gassers got upside down too. Not complaining, it's racing and who knows maybe the inconsistency makes for better racing.
I prefer the low voltage for realism myself. It also magnifies any friction or mistakes the builder makes. (Why I'm never low qualifier.)
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Post by 440gtx on Aug 22, 2009 16:56:54 GMT -7
at 13.8v if you have magnets, you don't need wheelie bars
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Post by dave hochallanged evans on Aug 23, 2009 7:11:24 GMT -7
Just figuring with wheelie bars, no magnets would make the class in-between the super stock an ratts  Mopars probably wouldn't need wheelie bars without traction magnets  (sorry just got to keep you guys fired up) ;D |
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Post by SKR on Aug 23, 2009 7:37:37 GMT -7
I was playing around with a stock Autoworld last night and the only thing I did was added braid to the pick up shoes and wheelie bars. The Volts were running around 13. The car was really squirrely and needs a magnet. I think we could get away from the wheelie bars with a magnet. One thing Pro Stock are known for is how consistent and how close the racing is. I'd hate to see a bunch of inconsistent floppers run down the track in this class. Any thoughts?
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Post by dave hochallanged evans on Aug 23, 2009 8:34:09 GMT -7
glad to hear you ran a test ,O.K. guess we need magnets on the pro stocks, how about leaving them off the Altered,their suppose to be squirrelly ;D
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Post by johnbalich on Aug 23, 2009 8:49:08 GMT -7
How big a variable are the braids in tuning one of these beasties? I am wondering if we would be better served WITH traction magnets With wheelie bars, but NO braids?
Or maybe JUST magnets??
BTW allowing magnets would let the AW T Jets that come with a trac-mag run as well.
If we have braids, magnets and wheelie bars (all three) then we have the Ratt Rodd chassis. Not necessarily a bad thing........what do you guys think?
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Post by dave hochallanged evans on Aug 23, 2009 9:04:47 GMT -7
Ratt rod rules already confirmed would save a lot of time and discussion
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Post by SKR on Aug 23, 2009 9:21:04 GMT -7
I think the Rat Rod chassis rules is a good idea. I know some of you have these chassis already so it would save some guys some money. The Rat Rods were running low .6's here last Fall. It would save a lot of discussion going with the Rat chassis and leaving the Volts high. We only need to change a few things in the rules to suit the Pro Stock bodies. As Derwood has included, we should allow original Aurora chassis in this class as well. Can everyone run with these? As I posted yesterday. Since the race is a ways off I am willing to hold a Gasser get together in October. Is there any interest in this and would you guys like to see Rat Rods added on the same bill for this October race for extra testing time? Dec/ Jan N/PS ALTERED MM/PS  |
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Mopars probably wouldn't need wheelie bars without traction magnets 
(sorry just got to keep you guys fired up) ;D