1/5 Stock Modified
Section 1: Chassis & Suspension
1-1 Must be 1/5 production based stamped 2 WD 5B buggy chassis.
1-2 No shortened, extended, offset or flat (Front kick up) style chassis.
1-3 All parts must be stock or after market stock style Baja upgrades.
( durability only)
1-4 16 MM bore stock type shock only
(Tethers, limiters and compensator's are allowed)
1-5 All a arms must be stock dimensions. (no extended a arms)
1-6 Rear toe must be done in the hubs.
1-7 Wheel extenders allowed.
1-8 Adjustable front and rear shock towers allowed.
1-9 All components must remain in stock locations. (including the battery)
1-10 No shimming or spacers under mounting points to chassis.
1-11 Rear hinge pin holder can be adjustable. From zero up to three
degrees. No others can be moved.
1-12 No devices/parts to mount ballast anywhere on chassis.
1-13 No metal or carbon fiber front bumpers.
1-14 All parts must be available to the public from a Store front/Track
hobby shop or on line STORE.
1-15 No homemade chassis or suspension parts of any kind.
1-16 No two speeds
Zenoah 28.5 Dave's Discount Motors Part # BB211
Engine must remain completely stock. (No Modifications)
All internal parts must be stock Zenoah
2-1 Any velocity stack/air cleaner allowed.
2-2 Stock intake (No modifications)
DDM part # av54x any color (No Modifications)
Only one gasket per each side of the intake. (Gaskets used must be
2-3 Must use Stock exhaust canister DDM part # 15483 (No
Modifications) You can weld the stinger for durability only. Only one
gasket and no spacers of any kind.
2-4 Must run stock carburetor: Carburetor Walbro part # 990 or part
# 668 Bearings in throttle shaft allowed. . (No other Modifications)
2-5 Jug/block gasket must be part# ca336 or Part# ca337
2-6 Two bearing and seal in the crank/block setup is allowed. Must
use Zenoah stock parts for this.
2-7.Stock Zenoah flywheel (No Modifications)
2-8 Must use stock type clutch and carrier ( No Modifications)
CY clutch part # gt241 CY clutch plate part # gt244
Zenoah clutch part # gt281 Zenoah clutch plate part # gt284
2-9 (Open spring 6,000 7,000 and so on.)
Super Dirtcar Series EDM and UMP style bodies are allowed.
3-1 Max over all length 46"
3-2 Max width where deck and A post meet and where
rear quarter panel and deck meet 20"
3-3 Max Width of nose 10" at front/bottom leading edge
3-4 Max length of side panels 30"
3-5 Max width of side panel 9 1/2"
3-6 Max height of roof at any point 4 1/2" from deck
3-7 Max height of sail panel from deck to roof 4 1/2"
3-8 No air scoops that direct air for motor or cooling. No Aero devices in/on decking.
3-9 There will be no metal body parts of any kind. Roll cage and body supports can be
3-10 Must have todays Open Wheel Modified/EDM appearance!
3-11 No part of the deck can be higher than 12" from ground to bottom side.
Rear Spoiler Specs
4-1 Rear spoiler can only be as wide as the body at the rear quarter panels.
4-2 Rear spoiler 3" max from deck.
Wheel & Tire Specs
Mods must run buggy narrow front wheel and tire!
5-1 Rubber tires only!
5-2 All wheels must be bead lock buggy based.
5-3 must be 1/5 scale
5-4 cutting, siping and grooving are legal
5-5 Traction compounds are legal.
5-6 track option on style (street tread or pin)
6-1 Stability control is track option
7-1 The track has final say on rules enforcement!
8-1 The DLMRA is not responsible for any actions by tracks or racers!
9-1 The DLMRA reserves the right to change any specifications at anytime
in the fairness of the hobby!