2010 Jackson Speedway 360 Outlaw Sprint Car Rules

1/31/2010 Updates and Rule Clarifications from our Committee Meeting are in Red

(Wording Subject to review and finalization by the Drivers Committee)

 

DRIVERS:

Race Rules shall apply at all Events.

 

1) Tech officials shall have full authority. At the discretion of Jackson Speedway official(s) in charge, any competitor may be disqualified for rule violations or hazardous equipment or hazardous actions.

 

2) All vehicles subject to inspection by a tech inspector at any time.

 

3) Approval of vehicle by the tech inspector shall mean only that the vehicle is approved for participation in a competitive event and shall not be construed in any way to mean that the inspected vehicle is guaranteed mechanically sound. Be it further declared that the tech inspector shall not be liable for any mechanical failure nor for any losses, injuries or death resulting from it.

 

4) Absolutely NO alcoholic beverages will be consumed by drivers or their pit crews prior to, or during an Jackson Speedway event. Use, distribution or sale of illegal drugs at any time shall be cause for immediate, indefinite suspension.

 

ROLL CAGE:
1. The roll cage must extend above the drivers head with helmet on.
 

2. Complete firewalls are MANDATORY between the driver and the engine.
 

3. NO aluminum frames allowed. A minimum of .120" wall is highly recommended on the frame and cage.

 

SAFETY:
1. Mandatory head rest with roll bar padding.
 

2. Seats should be mounted securely to the roll cage or the frame in an approved manner.
 

3. Angle toe MANDATORY (Toe loop on the throttle)
 

4. Rock screens are highly recommended in front of the drivers face area.
 

5. Steel brake lines highly recommended.
 

6. Helmets are required and must be SA 95, SA 2000 or newer full coverage and should be worn at all times when the car is in motion, and must be present at inspection.
 

7. Arm restraints and Neck Brace required. (Hans or Hutchins Device may substitute neck brace)
 

8. A driving suit of a flame-retardant nature (Nomex-type material) must be worn by all competitors. If the driving suit is two piece both the top and bottom must be worn at the same time. It is recommended that there be a one piece, minimum three layer quilted suit of fire resistant material and underwear, socks, shoes, gloves and hood of fire resistant material.
 

9. A competition shoulder harness, at least 3" wide, and a lap belt at least 3" wide are required. Metal to Metal Buckles are required on the shoulder harness and lap belt. The harness must be mounted in at least 5 points below the drivers shoulders (sub strap). Belts and Harness cannot be over 2 years old.
 

10. A kill switch is required and must within easy reach of the belted in driver. The switch must clearly be marked ON - OFF.
 

11. Nylon safety strap on the Torque tube is Mandatory.
 

12. It is Mandatory that all cars must be equipped with a quick disconnect steering wheel.

 

BODY - WINGS:
Top Wing: (see Illustration)
a) Center Foil maximum size of 25 square feet with a maximum width of 60 inches with a one degree plus or minus tolerance.
b) Center Foil shall be fully sheathed in aluminum. Vent holes are strictly prohibited.
c) No wicker bills or Gurney lips permitted on Center Foil, unless center foil is totally flat then a one-inch wickerbill is allowed.
d) Other than the slider mechanism, no moving parts allowed on or in foil structure.
e) The 12-inch section located at the rear of the Center Foil must not have the belly/curl arc out of proportion with the rest of the Center Foil. The belly/curl arc must span the entire length of the Center Foil and appear to be a gradual arc with the deepest point no further back than 48 inches from the leading edge. As measured on a 12-inch straight edge, the belly at 6 inches from the rear of the Foil may not be deeper than ½ inch. There is zero tolerance on this ½ inch depth. It is suggested that the wing blue print specify 15/32-inch depth, so that if any deflection or movement of the wing occurs, the depth will not exceed the ½ inch specification. (This ½ inch measurement ensures that the belly/curl arc is gradual.)
f) The belly/curl arc must start at the radius of the Center Foil’s leading edge and shall not exceed a depth of 2½ inches. Center Foil thickness cannot exceed 9 inches. Center Foil top surface from side to side must remain flat. Center Foil must be one-piece construction. No split or bi-wings will be permitted. Wings must be fabricated of metal alloys only. No fiberglass, carbon fiber or other similar material may be used in the basic framework of the wings. Top wing must not extend beyond outside of rear tires.
g) Two stationary foils or rudders will be allowed to run the entire length of the underneath portion of the top wing. Maximum height proportions are 1 inch at the front and 3 inches at the rear. Nowhere shall the foil exceed 3 inches in height. The top wing can be cockpit/driver adjustable



*Front Wing: (see Illustration)
a) Center Foil maximum size of 6 square feet with a maximum width of 36 inches with a one degree plus or minus tolerance.
b) Center Foil shall be fully sheathed in aluminum. No vent holes allowed.
c) No wicker bills or Gurney lips permitted on Center Foil, unless center foil is totally flat then a one-inch wickerbill is allowed.
d) Maximum distance from the Center Foil front edge to the front edge of the front axle may not exceed 20 inches.
e) The Center Foil front edge must remain at least 1 inch behind the front edge of the front bumper. Center Foil top surface from side to side must remain flat.
f) Center Foil must be one piece. No split or bi-wings will be allowed.
g) Wings must be fabricated of metal alloys only. No fiberglass, carbon fiber or other similar material may be used in the basic framework of the wings.
h) The Front Wing must not extend beyond outside of front tires. The Front Wing may not be cockpit or driver adjustable while the car is stationary or in motion.
i) No moving parts allowed on or in foil structure.
j) The 5” section located at the rear of the front foil must not have a bell/curl arc that is out of proportion with the rest of the front foil. As measured on a 5-inch straight edge, the belly at 2 ½ inches from the rear of the foil may not be deeper than 3/8 inch. There is zero tolerance on this 3/8-inch depth. It is suggested that the wing blue print specify 11/32-inch depth, so that if any deflection or movement of the wing occurs, the depth will not exceed the 3/8-inch specification (This 3/8 inch measurement ensures that the belly/curl arc is gradual).
k) The belly/curl arc must span the entire length of the front foil and appear to be a gradual arc with the deepest point, no further back than 12 inches from the leading edge. The belly/curl arc must start at the front foil’s leading edge and shall not exceed a depth of 2 inches. Top foil thickness cannot exceed 3.6 inches.
l) No rudders or fins on Front Wings.



*Side Board Panels

CHASSIS AND WHEEL BASE:
1. Upright sprints only, with an 83 inch wheelbase minimum.

 

SUSPENSION - FRONT AND REAR:
1. Cars must weigh a minimum of 1475 pounds with the driver after the race. Any added weight must be placed between the frame rails.
2. No manual, driver, computer, electronic (while racing) adjustable systems such as traction controls, chassis adjusting systems, etc. with the exception of wing valves.

 

TIRES:
1. Tires - Right Rear It’s the SC-25 (and As well as the current ASCS RR Tire). Left Rear will be a RC1 or the D12.
2. Wheels - Any approved racing wheels may be used.

 

ENGINE:
1. Maximum cubic inch allowed will be 360 +1% (363.6 cu")
 

2. No Aluminum Blocks
 

3. ASCS Spec Heads:

Brodix heads part # 27-211, #27-223, and #27-222 with ASCS stamp may not have any performance-enhancing alterations in any way. Intake opening no larger than original opening, the only exception being, inlet opening may be ground or polished 3/4 inches or no further into port than the closest edge of the closest letter of the ASCS logo. During this polishing the left side of the letter "A" is sometimes inadvertently brushed with polish wheel. This is permissible as long as letter is still intact. During polishing of inlet port sometimes polish marks may go slightly further than the 3/4 inch. Intake port at no time may exceed 215 cubic centimeters.

Intake port polishing will be allowed no more than 1 1/2 inches below the bottom of the original seat ring on the back side of the bowl area and no more than 1 inch on the short side. Polishing will be allowed in the combustion chamber area to avoid hot spot chaffing. Polishing will be allowed in exhaust ports as long as the original "ASCS" logo is not affected or port shape is not altered substantially.

Absolutely no intake or exhaust port relocation, raising, enlargement or reshaping of any type. Valve angle and placement may not be altered in any way on the ASCS spec head or on any other head.

 

Injectors on ASCS Spec Heads: 2 3/16 inch maximum inside diameter of injector stack - 2.187 at least 3 inches in length. Note: Larger injectors may be used, but sleeves a minimum of 3 inches in length must be installed in stacks above the Butterflies. No relief hole may be drilled above the Butterfly on any injector. No Alteration of injector manifold mounting holes will be allowed.

Due to manufacturing process some injector stacks may be slightly larger. There will be a tolerance of .005 allowed on no more than 3 stacks. No throttle body or plenum type injectors allowed, No down nozzle injectors.

No timed fuel injectors will be allowed. Electronic fuel injection shall not be allowed. Only one injector nozzle and one injector line per cylinder. Injection unit shall have one shaft operated butterfly per cylinder. The immediate area of the butterfly must be round. No slide or barrel type injectors will be allowed.  

 

4. OPEN Heads:

Any 23 degree manufactured head by any company allowed. Heads may be angle milled as long as not changing the valve angle more than 1 degree from as manufactured. No relocating of valve guides to change the valve angle from stock allowed.   Raised runner heads allowed.

 

Injectors on Open Heads: 2.100 restrictors (or ASCS intake Gasket) are needed on any head other than legal ASCS, at least 3" in length (and must follow the other specification under the Spec Heads)
 

Cast Iron heads must be sleeved down to 2 3/16”, but must maintain the 23-degree valve angle (With the same allowance for angle milling as adressed above).
 

5. No titanium allowed in motors, except valves and valve spring retainers. You will have an inspection plug in your oil pan or you will remove your pan for inspection when necessary.
 

6. No Motor or Head Claims.
 

7. Motors may be pumped at each race and generally we will do this at the start of the evening before Hot Laps.
 

8. Mufflers are mandatory. Schoenfeld part #112535. Loss of muffler will result in disqualification.

 

ASPIRATION - FUEL:
1. Fuel bladders in fuel tank are Mandatory.
 

2. Methanol and Ethanol allowed.
 

3. No Nitro, Nitrous Oxide or Nitrous devices allowed. No Methane or Propolene oxide allowed.
 

4. Wolfie valve or similar automatic fuel shut off recommended.

 

DRIVER OR ENGINE CHANGES:
1. No driver or car changes are allowed after the heat races.
 

2. The driver may qualify only one car in a class. In the event of a wreck in practice, the driver will be allowed to qualify another car provided that, that car has not yet been qualified.
 

3. If a driver changes motors between the qualifying event and the next event, he or she will have to start in the rear. This rule will be exempt for multiple day events.

 

POST - RACE SCALING:
The top 4 race cars in the feature must report to the tech area to be weighed (and we may do additional teching, such as checking sleeves).

 

One exception to this, we may have the winner go directly to victory lane for the trophy presentation.  Their car still needs to weighed, to be declared the winner.  The car, while in victory lane will be monitored by track officials and then escorted back to the tech area.  

 

TECH QUESTIONS CALL – Andy Odegaard 507-236-0754