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Ohio Challenge Cup Rules
GENERAL RULES

Section 1

General Rules- How OCC Events Are Run

Section 2

General Technical Rules 2008-2009

Class Specific Rules

GT-1

LMP Group 10

GTP
LMP Group 10
1.0 Purpose: OCC LMP is a Class designed to closely parallel USRA Group 10, while maintaining a "sports car" body. It is also designed to provide racers with an easy entry into motor-building and blueprinting.

2.0 General Rules apply.

3.0 Gearing: Must run 48 or 64 Pitch Gears(No 72 or 80 Pitch gears), 3/32 or 1/8 axles, NO hollow axles.

4.0 Controllers: any

5.0 Body Rules
  • 5.1 May run any body from the approved list.
  • 5.2 Car must have full interior- NO card stock interiors, or paper drivers are permitted.
  • 5.3 Driver figures must comply with General Rules.
  • 5.4 Interior/driver must block view of chassis.
  • 5.5 Decoration: See General Technical Rules.
  • 5.6 Must retain a min. .037 (1.0 mm.) "vertical" front bumper.
  • 5.7 May retain diaplane on bodies w/ diaplane molded in but may NOT add a diaplane that protrudes from the front of the car.
  • 5.8 Rear of the body: a minimum 1/2" rear "bumper"- must retained, measured down from the top of the molded-in spoiler or lip of the body.
  • 5.9 Max. rear wing height 1-5/8" measured from the tech block
  • 5.10 Approved Bodies- OCC LMP Group 10 Class: Updated as new bodies are released suitable for Class
    • Parma
      • Porsche K-8 941
      • Dome 1048
      • MG EX 257 1083
      • Ferrari WSC 1109
    • JK Products
      • Ferrari 7060
      • Audi R8 LMP 7192
      • BMW 7177
      • BMW V-12 7184
      • Cadillac 7185
      • Lola Judd 7187
      • Reynard 7193
      • Chrysler 7194
      • MG Lola 7198
      • Dome 7199
      • Ascari 7200
      • Porsche Spyder 7203
      • Mazda 7205
      • Audi TDI # coming
    • Outisite
      • BMW OS 065
      • (Ferrari) 333 OS 062GT (NOT OS-062 or OS-062U)
More Bodies if submitted and approved. I can`t approve `em if they`re not submitted guys.


6.0 OCC LMP Group 10 Motor Rules (Balanced 16D).
  • 6.1 Commercially Available Complete motor- 16D "balanced"(Excluding Outlaw/Short Stack Short Wind motors, see 6.3.4) w/ "American" or OEM arms, and approved cans and endbells.
  • 6.2 Commercially Available 16D Setups: A "setup" is defined as a motor, less the armature, including: can, magnets, endbell, oilite bushings, and brush hoods. Inside can dimensions: .600H. X .875W. X .950L.
    • 6.2.1 Airgap to be .575 or larger.
  • 6.3 Approved 16D Armatures: ANY factory- tagged "16D" armature.
    • 6.3.1 All armatures other than stock "Chinese" must be tagged: "16D"- if tags are lost, or un-readable in the opinion of the Tech Inspector, the motor may not be raced.
    • 6.3.2 Any OEM ("Chinese") armature may be used. (may be untagged)
    • 6.3.3 Armatures may be balanced and commutators trued.
    • 6.3.4 Armature dimension: .513 min. diameter excl. coating; .600 min. stack length. 70 turns of 30 GA wire (.0099- .0101" excl. insulating varnish). No split stack or lamination armatures.
  • 6.4 Motor Modifications:
    • 6.4.1 May not modify can except to solder in bushings and straighten to original (USRA 16D) specs.
    • 6.4.2 Can must be "full" (no strap cans) and may have the following cutouts only: hole top and bottom, axle notches on front and/or back.
    • 6.4.3 May add can screws, and spacers to limit end-play.
    • 6.4.4 May use any 16D brush hoods, but may not modify brush hoods, except to solder brush hoods to hood plates.
    • 6.4.5 May add Mura end-bell hardware to any 16D motor.
    • 6.4.6 Any 3 coil replacement springs and any brushes may be used; aluminum or brass spring cups may be used as replacements.
    • 6.4.7 NO spring insulation, shunts, or heat sinks allowed.
    • 6.4.8 May use any 16D one piece single (no quads) ceramic magnets . 560H X .650L X .145TJ.
    • 6.4.9 May use any adhesive to bond magnets to can.
    • 6.4.10 May not hone to size.
    • 6.4.11 May remove magnet clips.
    • 6.4.12 May dye armature.
    • 6.4.13 Armatures may have any timing, may be rebalanced, and commutators may be trued.