Hurricane Raceway Rules

HURRICANE RACEWAY – RULES

1. The Flagman makes all calls and decisions. His word is final. If there is to be a discussion with the flagman, it is to be done at the end of the evening after all races have been completed.

2. All drivers MUST attend the driver’s meeting. If you DO NOT ATTEND, you WILL HAVE NO RIGHTS for an argument later.

3. Drivers and crew members are responsible for checking the grid board for starting positions.

4. No bumping and rough driving will be tolerated. THIS RULE WILL BE STRICTLY ENFORCED!

5. Beginner Purple 17-64 gear rule.

6. 1 Double File Start, 1 Single File Start, once single file only stop for emergency.

7. A competitor must be entered in at least one class before going onto the track for practice, qualifying, or racing.

8. All races started between the cones in turn 4, this includes restarts. If you jump the start or you go around the cones in order to advance your position, you will be warned one time and the next time you will be placed at the rear of the field.

9. No one is allowed beyond the rope on the grid. If you go beyond the rope, your driver will be DQ’d.

10. If a driver works on his/her kart (example: puts on chain) while on the track, he/she will be moved to the rear of the field. A race will not be held up for any driver. No one is allowed on the track to assist a driver with his/her kart.

11. No working on karts under red flag condition.

12. No driving on scales, stop and shut off your engines. Please remove your transponder and hand to Scale Official, then push your kart onto scales.

13. All karts are required to cross the scales after every race. You will be disqualified if you do not cross the scales or if you are lite.

14. All Safety Gear is required.

Helmet – Snell 2000, must be in good condition, fit properly, and be fastened before entering the racing surface.

Gloves

Racing Jacket – abrasion resistant material

Neck Brace

Shoes

**If driver’s hair extends beneath helmet, it is mandatory the driver wear head gear (head sock, etc.) or be sure hair is inside their jacket.

15. Non-structural weights added to meet minimum kart/driver weight requirements must be bolted securely to the kart using bolts of at least 5/16” in diameter. Weights in excess of 7 lbs. must use two or more 5/16” bolts. All bolts must be cotter-keyed or double nutted. NOTE: All bolt-on weights must be white in color for visibility. Mounting of weights to nerf bars & rear bumper is prohibited. No added weight allowed on driver. Failure to comply, will get you DQ’d.

16. No cursing or verbally abusing ANY track officials. If this occurs, you will be DQ’d for the DAY and asked to leave the premises.

17. No disorderly conduct, fighting, getting off kart arguing with other drivers or officials will be tolerated. If this occurs, you will be removed from the track, DQ’d, and asked to leave the premises.

18. ALL KARTS INVOLVED in a caution, go to the rear, regardless of the situation.

19. NO ONE is allowed on the track except track officials.

20. NO ALCOHOL ALLOWED. If you are caught drinking and racing, you will be asked to leave the premises.

21. NO FKA CARBS ALLOWED!

22. The AMB transponder electronic scoring system shall be the official method of timing and scoring.

23. All transponders shall be mounted securely on the left front nerf bar. If you place the transponder in your pocket or some place other than the left front nerf bar and you are not scored correctly, you have NO RIGHTS to any argument.

24. It is your responsibility to obtain your assigned transponder from the transponder table before your race. Please DO NOT FORGET YOUR TRANSPONDER!! You cannot be scored without a transponder. If you go onto the track, it is realized in the scoring tower, and you are given a transponder by a track official, you will be placed on the rear of the field.

25. Top 5 karts to finish the feature MUST immediately proceed to tech with the kart as raced after leaving the scales even if you are running another class. You MUST check in with the Tech Official as soon as your race is finished. Anyone refusing to be teched will automatically be disqualified. This applies to ALL CLASSES!!!

26. ALL WKA ENGINE TECH RULES APPLY!!!

27. WKA Seat Rule 410.1.1,.2,.3 applies.

28. If the white flag waves and a caution comes out, the race is deemed official with the ones involved in the caution to be placed at the end of the finishing order.

29. All races will include 2-8 lap heats and 1-15 lap feature unless otherwise indicated.

30. Qualifying is 4 karts for 6 total laps. If you take the green flag, you CANNOT re-qualify even if you break down on the first lap.

31. If you leave the track for any reason during the race (this means once the green flag falls), you CANNOT return to the track.

32. If any driver stops on the track, for any problems, and removes his/her racing gear, he/she will be considered finished for that race.

33. When flagged with the move over flag for one lap and it is ignored, you will be black flagged for that race. When black flagged for any reason, YOU MUST leave the track immediately.

34. Recranks – you will be allowed 5 pulls if your kart stalls and needs to be recranked. After 5 pulls and no crank, you MUST remove your kart from the race track.

35. If during a race low fuel becomes a concern, the first 3 lead karts will be checked by the flagman. If the lead karts are found to be low on fuel, all karts will be allowed to refuel. If the 3 lead karts are OK, no refuels will be allowed.

36. Must have 4 legible number panels on kart, one on each side, one on front, and one on rear.

37. No Muffler Rule and No Tire Rule with the exception of the box stock tech classes which are required to run EL’s.

38. Tech is per WKA Tech Manual, Unlimited All-stars will run under UAS rules.

39. In order to allow a “Class” (example: Pro Box Stock) to run, there must be at least 4 kart entries.

40. All rules will apply to each competitor equally. Track Officials will adhere to these rules. If a problem occurs during a race and the race has already been completed, it’s impossible to rerun a race. Every effort will be made to insure the problem does not happen again. Comments and suggestions are welcomed as long as they are made in a calm and rational manner.

41. No driver switching allowed without first contacting registration. A driver switch requires a kart to be placed at the rear of the field. If the new driver isn’t already registered for another class, he/she will be required to pay $5.00 for insurance coverage. Under no circumstances should anyone go onto the track unless an insurance release form has been signed and the $5.00 paid.

42. BOX STOCK RULES (TECH CLASSES – EL TIRES REQUIRED):

Junior 1 Box Stock Tech - Ages 8-10 – 265 Lbs. (Purple Restrictor Plates Required, EL tires required)

Junior 2 Box Stock Tech – Ages 11-14 – 290 Lbs. (Blue Restrictor Plates Required, EL tires required)

Box Stock Lite Tech – Ages 15 & up – 325 Lbs.

Box Stock 360 Tech – Ages 15 & up – 360 Lbs.

Box Stock Heavy Tech – Ages 15 & up – 375 Lbs.

Super Heavy Box Stock Tech - Ages 15 & up – 400 Lbs.

Section 8 –Box Stock Project

ENGINE SPECIFIC TECH SHEET FOR: BOX STOCK PROJECT 6.5 OVH
Description: Single cylinder, 2 valve, OHV 4 cycle
Important Note: All parts must be Box Stock Project factory production parts unless otherwise specified in
this rules manual. No machining or alteration of parts is allowed unless specifically noted. All parts will be
subject to a comparison to a know Box Stock part (when performing a comparison check it is recommended
to use a + /- .005” tolerance). Engine will be teched as raced. There will also be a $200 claiming rule in place
for this engine. Refusing to accept the claimer will result in immediate disqualification of competitor along
with forfeiture of any points earned to date in class. Competitor will also not be allowed to compete any
longer in that class.

Combustion chamber volume: 27.5 cubic centimeter minimum, with piston at TDC, using prescribed procedure.
Cylinder Head Requirements: Must be OEM casting only. Porting and / or grinding are not permitted. Valve
seats are two angles 45 degrees valve face and 30 degrees top relief. Stock head bolts only, must have four. Head
gasket maybe after market, must be of stock configuration. No copper or aluminum gaskets allowed. Stock exhaust
system only with no modifications. Any stock configuration gasket allowed no other sealer.
Bore and Stroke: Stock cylinder bore is 2.685” max. Stroke is 2.123” + / - .005”.

Carburetor requirements: Huayi OR RUI*ING model carb only. Carb to intake sealer is gasket only no other sealer allowed.
Choke must be as supplied from factory, but may be fixed to stay in open position. Choke bore .810” NO-GO.
Venturi .615” NO-GO. Rear carb bore .751” NO-GO. Main fuel jet .028” NO-GO. Stock air cleaner assembly only.
Valve Train: Stock valve cover only with any stock configuration gasket, no sealer.
Factory stock rocker arms and push rods only. Stock valves only 45 degree angle only both valves, no modifications allowed. Only Box Stock
valve springs only. Max wire diameter on spring wire is .0698” with a maximum tension of 10.8 lbs. at a height of
.850”.

Ignition system: Stock Box Stock system only and must be unaltered. Kill switch and low oil sensor may be
disabled and removed.
Flywheel: Box Stock flywheel only with plastic fins. No alterations of any type allowed. Must also run stock
flywheel key.
Piston and Rings: Must be unaltered Box Stock only. No machining of piston and rings allowed.
Connecting Rod: Stock Box Stock rod only. No machining of any type allowed. Stock rod bolts only.
Crankshaft Requirements: Stock Box Stock crankshaft required. Machining, polishing, addition of material or
other alteration of crankshaft is prohibited. Stock factory timing gear mandatory and must be installed in original
location. Crankshaft journal diameter is 1.180”- 1.175” min.

Camshaft Requirements: Stock as cast camshaft only.
Max Intake lift on cam .225” taken at the pushrod.
Max Intake lift at the valve .238” Taken on valve spring retainer with zero lash.
******************************************
Max Exhaust lift on cam .232” taken at the pushrod.
Max Exhaust Lift at the valve .242” Taken on valve spring retainer with zero lash.
(Additional cam checks will likely be added later)
Special note. Valve guide wear can give false valve lift readings when checking off the front of the valve spring retainer. It is advised to take readings at several other points around the retainer (back, and both sides) if wear is suspected of giving a false, unfavorable reading.

Block Requirements: Block must remain stock as produced. Stub for governor may be removed and hole plugged.
No machining of block allowed. Welding to the block shall be for rod damage repair only and may not constitute a
functional modification.

Quote:

The Following updates are optional changes as of September 1, 2008

Aftermarket air filter adapter allowed (max length of 1.375). Main fuel jet may be drilled to a no-go of .042 inch. Stock emulsion tube must be used and unaltered.

Header and Muffler Requirements: Any single stage, one piece header made from .750” O.D. steel tubing allowed with the BS tube style muffler part #89966 or it’s aftermarket equivalent(ex: rotary power) installed at the end of pipe. The tube style muffler may either be welded or tread fitted to the pipe end. The entire exhaust pipe including the muffler is 14” max length and 10” min length.

Claimer Rule: You must finish the race in the box stock class to purchase the winners engine for $200 (minus the clutch/chain guard/throttle kit, header pipe/muffler, air filter adaptor/air filter, top plate & fuel pump).

The Following updates are mandetory changes as of January 1, 2009
Carburetor/Fuel Tank Requirements: Floor Mounted fuel tank mandetory (stock tank must be removed). Pulse type fuel pump allowed. Fuel pump must be pulsed from either the crank case or the valve cover. You may install a flat metal plate in the original tank location for the purpose of mounting the throttle linkage and fuel pump.

44. BUILDER PREPARED – Ages 15 & up

The intent of this class is to give those who want to make an incremental move up from Box Stock or a change from stock flathead a class of their own with horsepower similar to the flathead "stock" classes that are becoming increasingly expensive. The rules allow a builder into the engine, but are written with the intent of making it possible for the average guy to build his own engine.

Quote:

BP (Builder Prepared) 6.5 OHV – GASOLINE ONLY 87-93 octane – Approved Engine: 6.5 OHV 196cc clone engine modified only according to BP OHV Engine Spec. Tires are track/series option.

ENGINE SPEC SHEET FOR BP 6.5 OHV CLASS
Description: Single cylinder, 2-valve overhead 4-cycle engine. No aftermarket coatings of any type are permitted on any part of the engine.

Cylinder Head Requirements: Stock cylinder head only. Machining of gasket surface is allowed. No addition of material in ports or to cylinder head allowed. Valve seats may have two angles, 45° valve face and 30° top relief. Inside diameter of valve seats must be stock. Valve seats must appear stock and must be in stock position and depth. Stock head bolts are required and all four are required. Minimum head gasket thickness is .009”. More than one gasket may be used. Cylinder head guide plate for pushrods must remain stock. No other alterations to the stock head are permitted.

Bore and Stroke: Stock bore is 2.685” and may be over bored to 2.718” Stroke is 2.123” +/-.005”.

Connecting Rod: Billet aluminum rods, with or without bearing inserts allowed. No titanium rods allowed. Rod length is a non tech item.

Combustion Chamber Volume: 25 cubic centimeter minimum with piston at TDC using procedure posted below.

Carburetor/Intake Requirements: Stock Huayi or RUI*ING carb. Venturi .615” NO-GO. Rear carb bore .751” NO-GO. Air Filter adapter of 1.375” max length allowed. No air rams. Pulse-type fuel pump is mandatory. Fuel pump must be pulsed from either the crankcase or the valve cover. Black phenolic carb insulator must be used. Choke assembly may be removed. Jets, air bleed jets, and emulsion tube are non-tech. Throttle shaft, screw, washer, and butterfly must be stock and must be present. Stock intake runner gasket configuration only. One extra gasket may be used with restrictor plates. No other alterations are permitted.

Ignition system: Ignition timing is non tech. Stock ignition module only. No modifications of any type allowed. Sparkplug connector must be stock as from factory.

Piston Requirements: Must be stock dished piston with no modifications. Oversize Clone or Honda ZOT dished piston is allowed up to .035" oversize. Rings must appear stock and all rings must be installed. Piston may not pop out above cylinder deck.

Valve Train: Stock valve-train only in stock configuration except any single valve springs and valve spring shims are allowed. No additional support for rocker studs permitted. Valves must be one angle only, 45°. No polishing, lightening or knife edging of valves (1mm min. margin). Valve length is non-tech. Outside face of valve head may not be below the combustion chamber floor. (i.e. don’t sink the valves) Valve cover may be drilled for fuel pump pulse fitting, otherwise, it must remain unaltered. Valve cover gasket is non-tech.

Camshaft Requirements: BP spec cam only. Profile check taken at pushrod must match +/- 3° to spec cam. Maximum lift at the pushrod is .246”. Minimum lift at the pushrod is .240”. Maximum total lift of .260” to be checked at valve spring retainer with zero lash. Special note. Valve guide wear can give false valve lift readings when checking off the front of the valve spring retainer. It is advised to take readings at several other points around the retainer (back, and both sides) if wear is suspected of giving a false, unfavorable reading. Compression release must remain on the cam. Currently available cams that meet spec: Dyno 216, (others that meet spec are ok)

BP Cam Degree Profile Checks @ Pushrod
Intake
Open
.020" 17° BTDC
.050" 2° BTDC
.200" 60° ATDC
Max Lift .246"
Close
.200" 24.5° BBDC
.050" 36.5° ABDC
.020" 51.5° ABDC

Exhaust
Open
50.5° BBDC
35° BBDC
21° ABDC
Max Lift .246"
Close
62° BTDC
2° BTDC
13° ATDC

Crankshaft Requirements: Stock, factory crankshaft only with stock, factory timing gear in factory location. No modifications to crankshaft allowed. Aftermarket steel main bearings of non self-aligning type, with or without seal are allowed. No ceramic bearings. Crankshaft Journal diameter is 1.180”, 1.168” minimum.

Block Requirements: Stock Block, as cast and produced with no alterations or modifications other than those specifically permitted. Block head matting surface may be machined, however, no piston pop out is allowed. Blocks may NOT be welded for repairs. No addition of material to block (i.e. welding, jb weld, etc). All bolt bosses in block may be drilled and tapped for repairs or other uses. Additional side cover gaskets as required for crankshaft thrust are permitted. All parts associated with the governor and the low oil sensor may be removed, plugging any associated holes.

Flywheel: Approved SFI certified billet aluminum flywheel only. No machining or alteration of any kind allowed. Minimum weight for flywheel is 3.3 lbs. Any timing key or no key at all may be used. A flat washer or spacer may be used, and is recommended, between the flywheel and the nut. Handheld electric starter may be used, but compression release mechanism must remain on camshaft. Current Approved flywheels: ARC 6619, ARC 6618

Header and Muffler Requirements: Header Pipe
Length: Minimum 18”- Maximum 22”. Silencer
must be a RLV 91_L type with .1285 no-go hole. Header must be securely wrapped from flange to muffler prior to the race.
No other alterations to or from stock components are allowed

45. BOX STOCK RULES (CLAIMER CLASS):

Box Stock 360 Claimer – Ages 15 & up – 360 Lbs.

1. Description: Single Cylinder, 2-Valve , OHV 4 Cycle (Clone Engines Only)

2. No Tire Rules

3. Shoe Clutch 18 tooth Noram style.

4. May run original muffler or pipe as long as it is turned down and is safe.

5. May run any air filter.

6. Fuel tank can be left in its original location on the stock motor or may be mounted on the floor.

1. MUST run off GAS, Governor can be removed and Oil Sensor can be cut.

2. Flywheel: Box Stock flywheel only with plastic fins. No alterations of any type allowed. Must also run stock flywheel key.

3. Will not be teched, claimer rule below applies.

4. If one kart dominates this class, the track has the right to buy the motor and tear it apart. If the motor is found to be modified, the kart driver will be disqualified.

5. $200 Claimer Rule, can claim anyone’s engine that finishes ahead of you. Anyone wishing to claim a driver’s motor has 20 minutes after a “specific” race is completed to report to tech his wishes along with his monies. The driver will be allowed to complete the daily races before turning his motor over to the claimer. If driver does not sell, he forfeits the race and he can’t run the Box Stock Class for 4 weeks. In the event the driver returns after 4 weeks, wins, and refuses to sell a second time, the driver will again forfeit the race and will not be allowed to run the Box Stock Class for 6 months. If this were to occur again after the 6 month probation period, the driver will never be allowed to run the Box Stock Class again.