Downriver Speedway
Racing Rules
Basic Track Rules
ALL cars will maintain 1/16" min track clearance
ALL cars will maintain a max tread width of 3 1/4"
When viewed from above body should cover chassis, flag and tires except open wheel cars
ALL cars must have front and rear windows except open cockpit cars
ALL cars must have 4 wheels and tires at all times
ALL classes must have full interior in at least 3 colors
Interior must have 3D drivers head, shoulders and hands on a steering wheel
When viewed from above interior must cover chassis, motor, tires and track
Windows must be clear or tinted, no black or painted windows
ALL race cars will have 3 numbers in proper location and at least 1 sponser logo
ALL racing will be done in the spirit of good sportsmanship and fun
2021 NASCAR Cup Cars
Chassis
Any 4 1/2" chassis that is commercially available
You may brace, reinforce or lighten chassis
Motor must remain in stock angle winder location
Motor
Proslot 2003 Sealed S16 D only
Gears, Axles and Tires
Any Gear
Minimum axle diameter 3/32" front and rear
One piece front axle only, independent rotating fronts OK
Front or rear ball bearings OK
Rear tire min diameter .790" width .810"
Front tire min diameter .675" min width .375"
Max width 3 1/4"
Front and rear axles must be centered under car - no offset
.062" ground clearance at rear up to axle including gear
.032" everywhere else
When rocked side to side front tires must touch before chassis
Bodies
Any JK .010" modern NASCAR body
1/4" min front and rear bumpers
Max rear spoiler height 1 3/4"
Front wheel openings must be cut out
Body must be painted with clear windows
Must have a painted 3d interior card
Must have 3 numbers in proper location and at least 1 sponser logo
Racing starts Fridays at 7pm
4 1/2" Nascar on a Friday night
It doesn't get any better than this
Secure your spot Friday in this years
Chase for the Downriver Cup
NASCAR Points Series
A new points race for Cup Cars will begin in February with the Daytona races and continue thru November at Homested
The new schedule includes every race on
the NASCAR schedule
including the Chase for the Cup
Points will be awarded similar to NASCAR Rules
2021 Cup Car Champion receives a
New 4 1/2" Cheetah 21 Race Car with Vintage NASCAR Body and Super 16 Race Motor along with becoming this years Downriver Cup Champion
JK Sportsman
JK Cheetah C21 four inch chassis only
No reinforcing or modifying of chassis
Any JK .010 Body
Body MUST be cut on cut line
No cutting open rear of body above cut line
JK Hawk M7 or M7BB Motor Only
Motor must be screwed into stock location
Any JK Guide Flag
Any JK Braid
Any JK rear tire min diameter .765"
Any JK o-ring front
JK 64 pitch 10/36 gears or
JK 48 pitch 8/29 gears only
JK Non adjustable axle bushings only
.062 min. clearance at rear axle including gear
.032 min. clearance everywhere else
Maximum rear spoiler height 1 5/8"
No modifications to anything
Fun and Affordable
Box Stock
Entry Level Racing
JK 4" LMP/GT1
This is a Body Specific Class
Based on the Sportsman Rules Below
Your Choice of 23 LMP/GT1 Bodies
Roadsters
B87B BMW V12 B88B Panoz B89B Lola Judd
B98B Raynard B99B Chrysler B101B MG Lola
B102B Dome B104B Ascari B106B Lister
B107B Porsche B108B Lola B109B Mazda
B110B Audi B151B Cadillac B160B Lola
Coupes
B85B Porsche B86B Audi R8 B100B Bentley
B111B Bentley B113B Mazda Dyson
B114B Lola W/Rib B150B Mercedes CLR
All bodies MUST be cut on cut line
NO cutting open back of body above cut line
You MUST retain a min. 7/8" rear of body
JK INDY / F1
Any JK Cheetah 21 INDY/F1 Chassis
Any JK .010" INDY or F1 Body
JK Hawk M7 or M7BB Motor Only
Any JK Guide Flag
Any JK Braid
JK 64 pitch 10 tooth pinion only
JK 64 pitch 37 tooth spur gear only
JK Axle bushings only
JK INDY/F1 Front Tire only
Any JK Rear Tires min .765"
.050 clearance at rear axle including gear
.032 clearance everywhere else
No modifications to anything
Great Open Wheel
Box Stock Racing
4" NASCAR Trucks
This is a body specific class
Based on our JK Sportsman rules
Your choice of 6 JK NASCAR Truck Bodies
B63B Chevy B64B Chevy
B65B Dodge B66B Dodge
B67B Ford B68B Ford
Body MUST be cut on cut line
No cutting open back of body above cut line
Vintage 24 Hour LeMans Coupes
This is a body specific class
Based on our JK Sportsman rules
Your choice of 6 Vintage GT Coupe Bodies
RFD324C 330P3 Ferarri RFD329C Chaparral 2F
B51B Ford GT B90B FORD Mk IV
B92B Porsche Carrera 6 B95B Lola T70
Body MUST be cut on cut line
No cutting open back of body above cut line
Rear spoiler may be added
Maximum spoiler height 1 5/8"
WOMP WOMP
DOWNRIVER LEGENDS
Any stamped brass or steel Womp chassis
No drilling or grinding of chassis
Reinforcing chassis OK
Motor may be soldered in place
Adjustable axle bushings OK
No ball bearings
Motor: B52 ball bearing 25000 RPM only
Gears: 48 pitch only
Gear Ratio: 9x27 or 10x30 only
Axles: 1/8" or 3/32" front or rear
Front tires: Any o-ring or foam tire
Rear tire: Any meeting min. clearance
Guide Flag: Any meeting min. clearance
Max width: 3 1/4"
Min. clearance: .032" front and rear
Any Womp Legends Body
Thursdays
Warm up at 6pm
Racing at 7pm
AWRA WOMP WOMP
Outlaw Legends
Formula 1
Sportsman
For Complete AWRA Rules go to
www.facebook.com/
AWRA Rules for Womp Racing
Hammerheads
This is a NEW Body Specific Class Based on our JK Indy / F1 Rules
Featuring
The NEW Downriver Speedway Exclusive '60s Hammerhead Body
Body fits wide chassis only