Bumps and Jumps RC Speedway

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We all want to have fun – and the best way to do that is follow the rules!

All Drivers must first sign up before you are allowed to be on the track.

All Drivers must drive from the drivers stand

It takes 5 people to make a class - show up with 5 rc turtles and people to drive them and race!

General Rules -

Legal battery voltage is 8.40, any battery measuring 8.44 or above is illegal, the .04 difference is allowed for calibration discrepancies or other variances.
If found to be over voltage 8.44 - 8.49 you will be allowed to run off the pack prior to the start of the race, with one re-measurement of voltage, if it is still over voltage that car will not be allowed to compete. The rules infraction is allowed one time per season. The second time over voltage, OR if the excess voltage measures 8.50 or above that driver will be done racing for the season. Keep in mind .01 is not arguable and this rule will be strongly enforced.

Penalties will be issued for not being on the track to Marshall. Any car not on the tech table after there respective heat will be disqualified.

All oval Cars are rolling starts. Electric Mains are also rolling starts.

No car will be driven at any time in reverse of the track traffic. If this occurs, a one-lap penalty will be deducted off the driver’s best time. The use of reverse is illegal in all classes.

Turn marshals may not work on or repair cars.

It is the Drivers responsibility to bring the vehicle to the Tech table immediately following each race. Failure to do so will result disqualification.

Any violation must be corrected BEFORE the car is raced. If a car passes through "Tech Inspection" and a technical illegality is over-looked, the vehicle is still illegal.

Any racer may front $50 for tech inspection for any car on the track - if the car is found to be legal the $50 will be forfeited and given to the legal racer.

Vehicle Rules - Batteries: Only sub-C size Nimh or lipo's. A maximum of 6 cells.

Tires: All tires must be factory available. All offroad cars are required to run a factory available tire that is specific to that scale car. i.e. No truck tires mounted on 1/8 scale rims. Oval cars may run foam or rubber, but must be a factory available tire.

Chassis: The underside of the vehicle may not have any sharp edges exposed; all screws not already recessed must be of button type. Cars must have a front bumper that is made of a shock absorbing material e.g. nylon, delrin, plastic, kydex etc. Front bumpers must be mounted in such a way that they will contact an object prior to any other portion of the car in a front impact. Brakes: All cars must have a braking system capable of slowing the vehicle to a complete stop

Clutches: All vehicles must have a clutch between the engine flywheel and vehicle drive gear

Throttle Return: In case of failure, vehicles must incorporate a return spring attached to the throttle arm.

Oval Vehicle Rules

Please See rules section on dirtoval.com - located here

General Rules
All races will be 4 minutes in length, qualifiers will use Ifmar starts. Turn marshals may not work on or repair cars. Any cars damaged and placed in the infield will remain there until that race is over. All drivers must turn marshal the race immediately following their race. All cars will be made available for tech inspection before and after race. Once a car has gone through tech before the race it must go directly to the track and not to pit area. Tires may be Foam tires or rubber tires may be used but must be readily available for purchase (no prototype tires) Tire additives that are used must be wiped clean from the tires before any races or practice sessions. No Grease, No Silicone or Silicone impregnated tires.

Limited Latemodel and 17.5 classes: By entering and racing in this class you agree to the following. The engine, motor, esc and battery in the car is the responsibility of the person driving the car. If you buy your engine, motor, esc and battery from someone or borrow a car or motor from someone and it is illegal you will be disqualified and subject to the items listed below. You agree to allow tech personnel to remove and disassemble your motor at any time and agree that bumps and jumps is not responsible for any damage that occurs even if caused carelessness. You agree that upon request you will immediately take the engine, motor, esc and battery out of the car and completely tear it down to the bare block with bearings. You will do this directly in the presence of tech supervision. You also agree that if you refuse you will be assumed to be cheating and subject to the below consequence. You further agree that ANY engine, motor, esc and battery modification will be considered deliberate and you will suffer a lifetime ban of running any limited or 17.5 class in the future, in other words you would have to go run the open class, where you are allowed to grind a crank or rod or add ceramic bearings.

If an item is not addressed in the rules listed here than you should assume it is not legal.

Electric Class Rules

17.5 Weekly Class may use the DODC pack or Venom 4000 mAh Lipo, this class must use the Novak Spec ESC and the novak dodc 17.5 motor. All large events are required to use a dodc battery.

All cars must run 2-cell lipo pack. 13.5 motor may be used along with any 2-cell lipo. 13.5 motors may not measure lower than 19.2 micro henrys. Racer is responsible for removal of motor and disassembly of can for measurements. Mod is any 2 cell lipo and any motor brushless or brushed.

13.5 Spec: DirtOval.com SPEC 13.5 MOTORS and DirtOval.com SPEC Li-Po 3200mah batteries are the only motors and batteries legal for this class. Sensored speed controls only.

All racers shall take every precaution to insure safe charging and discharging techniques with their batteries. To insure safe charging methods are followed by all competitors, all batteries will be checked prior to each race to ensure battery voltage is a maximum of 8.44 volts or less. If the battery reads 8.45 or more you do not race. Battery and motor temperature will also be checked with the following pre-race procedure. A control pack and motor will be placed in the tech area for the purpose of monitoring the pack temperature. Checked batteries and motors shall be no more than 10° F above or below the temp of the control pack or motor. No Freezing Cans.

Street Stock Rules

Body	The body must be the McAllister Camaro body - no additional braces, wings spoilers, or doohickeys allowed
Chassis	The only chassis allowed is the standard RTR chassis. No modifications may be made to the chassis. Vehicle must be raced in its stock form. Battery must be in stock location. No aftermarket or Hop up replacement components may be installed. The chassis must be stock, no aftermarket parts may be added except front bumpers. All kits must use their supplied components no mixing of any parts. You may use anything that came in the OEM box. as well as any shock oil, springs, spacers, or any body mounts you choose. You may add weight any place on the vehicle but may not modify the chassis or suspension in any way, including removing weight.
Suspension	Both the front & the rear suspension systems must remain in stock form. Hop up replacement components may not be installed, this includes different rear toe plates or caster blocks. All cars must use the stock 25 degree caster blocks and stock 3 degree rear toe block. Wheel spacers may be used.
Legal Tuning Parts	Direct replacement parts are all that is allowed allowed. Ball Differentials are NOT permitted. The part must be a direct replacement part from the manual. You may use any springs from any manufacturer and may add limiters inside or outside shocks and use any shock oil. You may add spacers to adjust anti squat or front kick up. We have decided to allow the use of an aluminum front pivot block or aluminum front pivot block brace.
Steering	No modifications may be made to the steering system. Original Kit parts only. All kits must use their supplied components.
Electronics	Original Kit electronics Speed Control. Servo may be changed to any servo with less than a $35 street price. You may install any Receiver you so choose.
Motor	All kit's must run the motor that was supplied in the kit. All cars must use the stock 81 tooth Spur and a 21 tooth pinion.
Battery	This class is limited to any 2S 7.4 Volt Lipo battery pack
Tires	The only tire permitted is the custom works street tracks in the hard compound, you may only use custom works rims front and rear. Fronts must be on fronts and rears on rears. HB compound tires are not permitted.

Offroad Vehicle Rules

Elimination of the Slick

All 1/10 scale vehicles will run a minimum tire height of the back side of a #11 blade

All 1/8 scale vehicles will run a minimum tire height of tip of a 3/32" driver

1/10 FUEL 2WD OFF-ROAD TRUCK SPECS

Roar rules apply

1/10 Electric Buggy

Roar rules apply

Short Course Rules

5 or less in either mod SCT or 4wd SCT will be mixed in the same class

All Short Course vehicles will run a minimum tire height of a .050 tip

Spec Short Course

Body	Any Body, but tires must be covered -ie no beetles
Chassis	Traxxas Slash, Associated SC10, Losi Strike and HPI Blitz in RTR for only. No modifications may be made to the chassis system. Vehicle must be raced in its stock form. No aftermarket or Hop up replacement drive components may be installed. The chassis must be stock, no aftermarket. All kits must use their supplied components - no mixing brands. You may use anything that came in the OEM box. No lowered chassis on conversion kits - must be RTR kit
Suspension	Both the front & the rear suspension systems must remain in stock form. Hop up replacement components may be installed, provided they are not a performance advantage. Must use the Stock RTR Springs that came in the kit.
Legal Tuning Parts	Direct replacement parts are allowed. For instance if RPM makes it for the Slash it is allowed. Ball Differentials are NOT permitted in the Spec Class. No performance upgrade parts. Lets be honest adding aluminum parts to your vehicle isn't going to do anything to enhance overall performance. If you feel you need it then by all means add it, its your money. The part must be a direct replacement part for that vehicle.
Steering	No modifications may be made to the steering system. Original Kit parts only. You may install any servo saver or servo drive-horn that you so choose. Associated – #SHV1504MG, Traxxas – 2075, LOSI – servo may be cnaged out to any under $40 street priced servo. All kits must use their supplied components - no mixing brands.
Electronics	Original Kit electronics Speed Control & Servo only. You may install any Receiver you so choose. On board traction/drift device or Gyro’s NOT permitted. All kits must use their supplied electronics - the sc-10 may use the slash ESC due to reliability issues.
Motor	All kit's must run the motor that was supplied in the kit except HPI motors may be substituted for any manufacturer motor (keep it cheap!)
Battery	This class is limited to any 2S 7.4 Volt Lipo battery pack
Tires	Box Stock. No mixing Brands. Slash must run the Slash tires, Sc10 must run the SC10 tires and so on. Must be 3.0” inside bead diameter x 2.2″ outside bead diameter. Truck must weight no less then 4.75 pounds ready to Race

Mod Course Rules -

Body	Any Body.
Chassis	Any chassis.
Steering	Any Servo may be used.
Motor	Any motor may be used.
Tires	Must be 3.0” inside bead diameter x 2.2″ outside bead diameter. All tires must be Short Course Truck tires - no 1/8 scale tires.
Transmission	Any