2008 Fray Rules and Regulations
Preamble:
These rules are written with the intent of providing a precise specification that will define the car’s construction. It is fully expected, and in fact intended, that the racers will adhere to these rules as they design and build their cars. Any breach of these boundaries will result in the disqualification of the car.
To support this principle, the tech committee will gladly answer any of the racers' questions of the rules prior to tech. Also, please remember when testing your armature, for the Fray in Ferndale, the room temperature is 55F-65F degrees. The voltage for the 2008 Fray in Ferndale is 20 volts.
New Parts Submission Guidelines:
Any new commercially available T-Jet part or resin body must be submitted to Rick Machado for approval no later than 90 days, (December 15th, 2007) prior to the event. All newly approved T-Jet parts and resin bodies must be commercially available for sale 90 days prior to the event and must be for sale in quantity from March 11th to the 14th, 2008 during Fray practice. Please send all parts submissions to:
Rick Machado
2099 Centerville Road
Ferndale, CA 95536
Complete Car Regulations:
1) The complete car must weigh at or between 20.0 grams and 24.0 grams.
2) The complete car must freely pass through a standard 1.3125” (1 5/16”) HO tech block.
Body Regulations:
1) Body: The body must be a copy of a 1:1 car and concept cars.
2) Bodies must be manufactured by either the process of casting or injection molding and be made of resin or plastic. No feather-light resin allowed.
3) Bodies must be originally manufactured with the intention of being mounted with the use of two (2) screws via two (2) body-mounting posts on a/an: Aurora Model Motoring (which includes: Vibrator, ThunderJet, Wild Ones, Tough Ones and Xlerators), Bachmann, Faller, Model Motoring ThunderPlus, Marx, Eldon or Tyco S series HO chassis.
4) Bodies with cast-in handling pans or exaggerated details - such as unrealistic or inappropriate hood scoops, oversized windows, side pipes, sloped sides, or snow plow noses - are not allowed.
5) No Indy style Formula 1 or Formula style open-wheel bodies will be allowed.
6) No ballast or fillers, other than color pigment, are allowed in the plastic or resin.
7) Maximum overall body width is 1.200”. Accordingly, the body must pass through our 1.2” body-tech device.
8) The maximum thickness of the lower portion of the body, including items such as the front end, rear end, fender flares, and running boards must not exceed 0.125”.
9) With the body mounted securely to the chassis and viewed from above, the body must cover the chassis except through windows and vents. Unrealistic overly large windows and vents are not allowed.
10) With the body mounted securely to the rolling chassis and when viewed from the side of the body, the upper edge of the top-plate, minus rails, cannot be above the top of the body as measured at the rear of the top-plate. (i.e.: The horizontal top of the gear plate (base) cannot protrude above the rear window opening).
11) Bodies must be fitted with all of the manufacturer’s original or exact-replica bumpers, heads, rollover bars, etc. in their stock locations.
12) Cracked or broken body-mounting posts may be repaired or replaced with the use of glue and/or a plastic sleeve around the original post or a plastic rod/tube in place of the broken post.
13) Other than the plastic post reinforcements, stated in Body Rule 12, no additional weight may be added to the body.
14) The body may be lowered and lightened by removing material through the process of grinding or scraping as long as Body Rule 9 is not violated. Bodies cannot be heated or reshaped from the original cast of the body.
15) Bodies that have a separate roof and windshield casting/molding, and have molded-in interiors (also known as Hardtops, e.g. Aurora's '65 Mustang), may completely remove the interior portion of the body.
16) Front and rear wheelwells may be opened up for tire wheelwell clearance. This opening may be no larger than a 1/8-inch drill bit (.125") around the entire wheelwell and tire.
17) Wheelwells must not be modified in such a way as to allow the use of any other wheelbase than that which was originally intended by the manufacturer of that body.
18) Any body-mounting screw may be used. Non-magnetic screws are recommended so that a loose screw will not be picked up by a passing car, thus causing damage to the car and/or the track.
19) Both front and rear screws must be used and must secure the body to the chassis at all times.
20) The front windshield must be plastic or resin, clear or painted, may be glued in place or molded in, and must fill the frame. Tape windshields are not allowed. Side and/or rear windows may be removed.
21) Bodies that violate Body Rules 4 and 9 by having illegal openings such as too large or unrealistic windows, missing engine covers, and open truck beds may be repaired by gluing a 0.025” minimum thickness plastic cover over the opening. The repair must be made so that its thickness can be checked using a micrometer having a ¼” diameter anvil.
ThunderJet Rolling Chassis Assembly Regulations:
1) Only original Aurora ThunderJet chassis assemblies with non-plated copper electrical components are allowed. Commutator brush springs may be bent to alter brush tension. Pickup shoe hanger plates may be bent.
2) The rolling chassis’ axle, armature, and drive pinion shaft holes may be opened up slightly for increased clearance.
2a) The “Truck” hole cannot be utilized in any way.
3) The rolling chassis assembly must not be fitted with bushings.
4) The chassis may be trimmed slightly (no more than .010”) to allow for crown gear tooth clearance.
5) Only an original Aurora T-Jet pancake gray armature with two laminations, with its original commutator, and all of its original unmodified windings may be used. The armature may be balanced and trued.
6) Each armature pole is to be measured across two separate commutator segments. The AVERAGE of all three poles must be 16 ohms or greater. i.e.: Pole A measures @ 15.8 ohms, Pole B measures @ 16.2 ohms and Pole C measures @ 16.0 ohms – This armature is LEGAL. All measurements are to be taken at the current available room (ambient) air temperature. The warming of either the commutator or the armature is not allowed before/during measuring. (The combined total ohm reading of all three armature poles must equal or exceed 48 ohms.)
7) Only Johnny Lightning and AutoWorld magnets may be used. The magnets may be sanded to fit the chassis. The distance between the magnets must be a minimum of .700"; no exaggerated sanding is allowed to close the armature gap. This will be teched using our custom-designed, specially fabricated Plug.
8) Magnet shims may not be used. No shims are allowed either under or on top of the magnets.
9) Any flat top and bottom carbon/copper motor brushes are allowed. Brushes may be scored with one score line or an “X”. No exaggerated deep cuts or crevices allowed; this will be checked for at tech.
10) Only stock or commercially available stock replacement 14 tooth brass armature pinion gears are allowed.
11) Only stock or commercially available stock replacement 24 tooth brass idler and driven gears are allowed.
12) Only stock or commercially available stock replacement 9 tooth brass drive-pinion gears are allowed.
13) Only stock or commercially available stock replacement 15 tooth crown gears are allowed. The crown gear diameter must equal or exceed .300". The crown gear boss may be trimmed or a spacer(s) may be added to adjust for proper gear mesh within the crown gear box.
14) Only metal driven-gear shafts may be used. The driven-gear shaft must not exceed .065" in diameter.
15) Gear-tooth friction surfaces can only be de-burred by polishing, filing, or sanding.
16) Gears must not be chamfered, lightened, or relieved.
17) Only commercially available front wheel, tire, and axle assemblies may be used with two exceptions. The front and rear axle diameter must not exceed .065" and the front tire diameter must equal or exceed .300". Front axle washers (spacers) are allowed. All spacers/washers must be located outside the chassis or chassis frame rail, With the exception to the above rolling chassis rule #13. Maximum lateral movement in the front wheel assembly is 0.031” (1/32”).
18) Rear wheels may not be made of Brass or solid Delrin. No spacers or wheel weights or hub caps allowed on rear axle or inside wheels.
19) Any stock or stock replacement pickup shoe may be used. These shoes must have a factory formed step and the step must be unaltered except to allow flat pickup shoe contact with the track rail. American Line #313, BSRT #504, Slottech #1440 and stock Aurora ThunderJet shoes are allowed. Ski shoes are not allowed.
20) The "step" in the pick-up shoe must remain intact and be unaltered, except that only the first bend in the step, (Bend #2), may be changed slightly so that proper "pick-up shoe" to "rail" contact can be achieved. No attempts to "flatten" the "step" are allowed. The area between (Bend #1) and (Bend #2) may be "flattened" to achieve better contact with the "rails"; however, (Bend #1) must remain as stock. The front vertical slotted portion of the pick-up shoe may be bent to limit shoe travel. The rear hook portion of the pick-up shoe may be bent to limit shoe travel and adjust shoe tension. The chassis' copper pickup retainer may be bent slightly to improve electrical contact.
21) Pickup shoe springs may be cut, stretched, shimmed, or compressed.
22) Any amount of the vertical gear-plate rails above the upper horizontal plane may be removed. No amount of material may be removed from the gear-plate at or below the upper horizontal plane. The serial/patent numbers and letters must also remain intact.
23) Commercially available guide pins must be plastic and must be of a design essentially similar to the original Aurora black plastic front guide pins. They may be cut, trimmed, or bent. Countersinking of the guide pin screw hole is permitted.
24) Glue may be used on a rolling chassis assembly only for the purposes of attaching gears, guide pins, or axles. Solder may be used to attach metal gears to their metal shafts.
25) The Fray promoters reserve the right to clarify and interpret the rules as they arise for the best interest of the event.
If you have any questions regarding our rules and regulations, please do not call Rick Machado or Richard Phillis at home or on their cell phones. Please post your questions on the ezboard and they will be answered on a weekly basis.
Team fees for the Fray are $125.00 per team. The deadline for payment is December 15th, 2007. Payment must be in the form of a Money Order, made payable to Richard Phillis.
Please send your payments to:
Richard Phillis
448 Camp Weott Rd.
Ferndale, CA 95536
Event Schedule - Open Practice:
Tuesday 03-11-08
12:00PM to 6:00PM
Wednesday 03-12-08
9:00AM to 6:00PM
Thursday 03-13-08
9:00AM to 6:00PM
Friday 03-14-08
9:00AM to 6:00PM
Saturday 03-15-08
Hall opens at 6:00AM
6:45AM Drivers Meeting
7:00AM Race Begins
RACING PROTOCOL:
1.) On Friday afternoon at three o’clock all team cars will be teched.
2.) All teams must enter 15 cars to be teched for team racing.
3.) If cars pass tech, they will be marked.
4.) The cars will be placed in a team box.
5.) The team boxes will be placed in a locked safe until after the drivers' meeting (6:45AM) on Saturday morning.
6.) After the drivers' meeting, the team captain will be called to come get their team car box.
7.) All drivers will have 15 minutes on the tracks before the first team race starts for final adjustment.
8.) When the 15 minutes is up, the team captain will get all of his team cars and place them in the team box. The only time the car leaves the box is to race the heat and the car must be returned to the team box after the heat. When all heat races are over, the team captain will put all team cars back in the team box and they will remain there when he transfers the box to the next track. The cars will remain in the box until the next track is cleared for the next grouping of racing.
9.) The team captain will supply the racers their cars prior to the heat.
10.) At 7:00AM, on Saturday team racing will begin.
11) All teams will have forty minutes at each table to complete their heat race.
12) During the noon lunch break all teams will be able to take their team cars to their pit area for maintenance or repairs. Be advised, your cars must still meet all post-race rules and regulations.
13) All teams must place all team cars back in their team box, which will go directly to the tech table. The top finishing team is subject to a full tear down of their entire 15 cars!
14) All 15 cars on the winning team must fully pass tech. If one of the 15 cars doesn’t pass, the ENTIRE team will be disqualified.
Individual Race:
1) After the A-Main race all six A-Main cars will be subject to full tear-down by the tech committee.
We hope you clearly understand our rules. Thank you for your interest coming to the Fray in Ferndale. This is not a T-Jet race; this is a T-Jet racer's paradise!
Your Hosts,
Richard Phillis & Rick Machado |
