top of page



Northern Outlaw 4 Running rules

These rules are adapted from the official Northern Outlaw 4 rulebook. If any discrepancies between their official rulebook and these rules, their rulebook will be considered the correct version. PGARA is not responsible for enforcing these rules. Any suggestions for additions, omissions, or clarifications of these rules please direct to Steve Jackson and/or Mike Staniforth.



These rules were not written for the betterment of any one car, chassis or engine. Any variation from these rules must receive prior written approval form the technical committee. Based on reasonable fact, the technical committee may recommend adjustments to these rules to level the competition. The majority of adjustments will be made with the addition or removal or required race weight. 
No express or implied warranty of safety shall be taken from publication or compliance with these rules or regulations. They are intended as a guide reflecting acceptable standard by the membership or the cub, and are in no way a guarantee against injury or death to a participant, spectator, or Official.
Technical committee may permit minor deviation, impose further restriction and with discretion provide interpretation and deviation that in their opinion do not alter the minimum acceptable standard and provide qeuality of competition. Their decision is final.




  1. An owner shall declare to the technical committee:

    1. Stock wheelbase with a full suspension from a
      single model of vehicle or designation of a Mixed wheelbase selecting one of the stock wheelbases from one of the source vehicles when using a combination of front or rear clips in a mixed suspension.

    2. Engine by make and series, (original source may be requested), and displacement in cc's

    3. Body model/style and year

  2. Body, suspension/pan/frame and engine are to be from a single OEM manufacturer


  1. At any time, an Owner may be required to prove compliance with these rules, by physical proof or written documentation, consisting of:

    1. Original manufacturers data sheets and diagrams showing reference data.

    2. OEM or after market parts data, technical data from recognized repair firms/support companies.

    3. Matching vehicle parts that can be measured.

    4. Written approval of deviation by the technical. committee.




Parts Sources – Bodies, chassis, and pans, suspension components, engines and transmissions are to be sources from a 4 cylinder, minimum 4 passenger (forward facing seats) vehicles originally intended for sale in North America (except where otherwise noted in the rules).


Wagons, vans, t-roof or soft top cars, compact utility vehicles, independent frames (truck), all wheel or 4 wheel drives, 4 wheel steering.


Except for safety, fuel and cage construction rules, cars registered in 2011 or 2012 race seasons and in full compliance with the rules of the time are grandfathered under the rules for 2 years. All other cars must be updated to the new rule book.




  1. Removal, all interior flammable material, glass windows and operators, door latches(doors to be welded or bolted shut, or replaced with door skin), redundant wiring harness, door, hood and deck latches and hinges, exterior trim and mouldings, lights and lenses and support assemblies.

  2. Lexan windshield, minimum 1/8” thickness, if no center bar is provided in cage, back up with a ½ “ x 1/8 “ bar or ½ “ diameter tube securely mounted.

  3. All exposed metal edges to be rolled or suibably finished for safety.

  4. Soft nose bumper skins, tailpieces, feathering smoothly to body lines, securely mounted with contact point at 16” ride height.

  5. Bumpers not to extend more than 32” at contact point beyond tires at front and 38” behind tires at rear.

  6. Top of rear tread to be contained within body line by either extending fenders or providing rigid fender extension.

  7. Body supports to be constructed of small diameter round tubing. No angle or square tube.

  8. All body components tare to be fastened securely by smooth faced mechnical fasteners (exposed fasteners should be pan head bolts or rivets)

  9. Silhouette of declared body to be maintained from top of front bumpers to top of rear bumper. Rear of car to be enclosed. Sunroofs to be removed and enclosed.

  10. Finished body to present smooth non sagging suface at any point where body contact may be expected.

  11. Paint schemes to be contrasting tasteful graphics suitable to the class and visible in darkness.

  12. Car number to be 12” high on both doors, 18” high on roof and 4” high on the front/rear of car in contrasting colour, sharp edges.

  13. Top 5” of windshield to be left for series sponsor.

  14. Displacement cc's and required race weight 2” high on upper left fender/hood

  15. Car to be maintained and repaired between races (except for consecutive races)

  16. Removaable panels (hood and deck lid) are to be easily removable for emergency crews by use of hood pins or Dzus style fasteners not requiring specialized tools.


  1. Removal; gutting of doors, trunk and deck lids, door posts, firewall above vertical upturns, wheel wells, interior liners and miscellaneous panels, to achieve a single layer body skin and floor pan.

  2. Removal of body skin and replacement with fibreglass body skins, or portions of skin.

  3. Street style ground effects, air dams and splitters securely mounted, 3” minimum height above ground if solid/metal and no minimum height if flexible (bumper skin, rubber, etc). Air dams and splitters not to extend more than 3” in front of bumper or outside body lines on side.

  4. Wings or spoilers, street styled, factory or similar design appropriate to car, rigidly mounted not to extend outside deck sides, beyond bumper or above roof. All wings and spoilers to be approved by tech committee. Maximum face dimension 12” wing, 8” spoiler.

  5. Body swaps are allowed, wheel wells centered and car scaled to fit.

  6. Emergency repairs may consist of quick straps or tape.

  7. One non original hole in body allowed for exhaust, flush to body at surface

  8. Trimming of wheel wells for clearance, edges to be rolled and smooth.

  9. Hood scoops not higher than 1.5”. Hole on hood minimum 1” greater diameter than air cleaner.


  1. Removal of any portion of unibody without suitable reinforcement for structural strength.

  2. Metal bumpers.

  3. Glass, plexiglass or acrylic windshields or windows.

  4. Ram air boxes.


Currently registered bodies are grandfathered for use for a period of four years.


Driver Compartment


  1. Firewall of minimum 0.020” steel sheet sealing engine compartment and fuel compartment.

  2. Installation of minimum 0.020” steel skin above driver (hoop) and door skin if fibreglass body is installed.

  3. Driver's compartment to be sealed from passage of flame, gas fumes, and exhaust fumes.

  4. Seal all holes over 1” diameter with steel sheet.

  5. Protect all penetrations through firewalls with grommets to prevent chafing, maximum penetration diameter is 1”


Cage and Frame


  1. Full roll cage and door bars constructed of minimum 1 ½ “ diameter x 0.090 wall thickness seamless or electric weld rolled steel tube consisting of:

    1. Minimum roll bar with diagonal brace from top to bottom, and lower and mid spreader bars.

    2. Three horizontal drivers side door bars with two vertical door bars (top bar at top of door skin)

    3. Two horizontal passenger side door bars with two vertical door bars (top bar at top of door skin).

    4. two front vertical posts spread with a dash bar and transmission bar (transmission bar may consist of portions of existing floor pan and transmission support if restrained).

    5. Hoop (halo) bar.

  2. All connections of roll cage to be welded and gusseted with a minimum fo 2” length to each gusset leg.

  3. Front and rear braces, seat support frame and a foot bar constructed of minimum 1 ½ “ diameter x 0,060 wal lthickness seamless or electric weld rolled steel tube.

  4. Weld 1/8 “ thick steel plates to factory sheet metal (floor pans and light gauge frame rails) to allow distribution of forces when attaching roll cages and braces (minimum of 1” beyond tubing).

  5. Nose/tail pieces backed by rolled internal bumper, minimum 1 ½ “ diameter x 0.060 wall and mounted at 16” height, attached to frame clip with nested pipe or crush mounting and shear pins/bolts (1/4 “ recommended). Ends to have radius and extend 4” along side of car.

  6. Crush zone of 12” from front or rear bumer to any rigid portion of the frame. Bumpers or bodies on front wheel drives may be extended slightly to achieve this.

  7. Nested or collapsible bumper mounting is not to project more that 4: into crush zone fro a flat face on the frame.

  8. Removable Nerf (rub) rails of maximum 1” x 2” rectangular or 1.5” diameter steel tube extending to within 6” for tires, mounted at 16” height along side of body, ends turned into body and smooth, rail face to be inside tire lace.

  9. All bars except nerf bars to be constined inside body skin.

  10. Easily accessible hook up/lift points at front and rear of car. Points to be marked and labelled for emergency crews.


  1. Windshield (Ernhardt) bar.

  2. Center Halo bar.

  3. Attachments to roll cage made by welding tabs or solid eye bolts.

  4. Additional reinforcement/cage to limit suspension mount/pan damage.


  1. Stock internal bumper crush panels and bumper shocks.

  2. Excessive construction of roll cage and body supports that prevents crush of external skin or presents a puncture hazard of other cars.

  3. Welding main roll cage directly to sheet metal without plates.

  4. Drilling holes in the main roll cage


Chassis & Suspension


  1. Maximum wheelbase 105”.

  2. Maximum width 74” measure to outside bulge on tires.

  3. Minimum 3” ride height to any rigid portion of car, or engine. Oil pan and transmission are not to be the lowest point of cars.

  4. All suspension components must be OEM production parts from a passenger vehicle sold in North America.

  5. Floor pans must be complete from vertical upturn at front firewall to axle centerline at rear, and rocker to rocker.

  6. All components, wheel base, and mounting for suspension must match make and model of declared STOCK suspension.

  7. Any component and mount configuration may be used in a declared MIXED suspension.

  8. Spring location to match suspension declaration and component selection.

  9. Tires to club spec for season.

  10. Rims 13” or 14” diameter x maximum 7” width steel racing type.


  1. Existing floor pans may be reinforced with minimum 1 ½ “ x 0.060 wall square tubing frame rails.

  2. Frame horns may be reinforced or replaced with minimum 1 ½ “ x 0.060 wall square tubing.

  3. All cracks or damage in floor pans to be repaired with minimum 0.020” steel sheet.

  4. Maximum of four shock absorbers, one per corner. MacPherson struts may be drilled or drained. Heim ends allowed.

  5. Non-externally adjustable, steel bodied race shocks allowed. May be rebuidable.

  6. Maximum of 4 height adjustments allowed, may be accomplished by ladder bars on leaf springs, jacking bolts on arm mounted springs, cut and t urn of torsion bars and coil over sleeves over shocks/struts.

  7. Arm and sub frame components may be fabricated to match dimension and style of OEM factory components.

  8. Strut towers may be removed and custom mounts built. MacPherson struts may be adjusted for camber and caster by relocation of top mount or use of adjustment plates.

  9. MacPherson strut lower spring cup may be repositioned by sleeve or clamped brackets.

  10. Heim ends/bump sleeves allowed on outer tie rods.

  11. Adjustable sway bars and panhard bars.

  12. Mounting points may be reinforced, slotted and elongated.

  13. Stock or OEM replacement bushings, polyurethane bushings.

  14. Aftermarket and cut OEM springs.

  15. OEM steering components from any manufacturer.

  16. Solid metallic ballast blocks allowed, minimum 10 lb securely fastened to floor pan or frame by multiple fasters and washers, painted white and labelled with car number.


  1. Aluminum or Coil over (threaded body) shocks, exotic racing shocks.

  2. Adjustable links and control arms.

  3. Spherical bearings or solid bushings.

  4. Drop spindles.

  5. Re-valving or change of valving of shocks at track.

  6. Any form of suspension adjustment from the driver's position.



Please check with tech for legality of engine modifications

Any naturally aspirated single overhead cam 4 cylinder engines up to a maximum original factory horsepower rating of 162 HP, maximum 2449 cc original engine size.

Any 4 cylinder engine up to a maximum original factory horsepower rating of 162 HP

  1. Carburated

  2. Required

    1. OEM production block, crank and heads, stock stroke (same manufacturer).

    2. Two barrel Carburetor not exceeding 350 cfm, 1.21” maximum venture size, with original air horn.

    3. OEM intake, may be port matched to head and carb, max 1 ½ “ depth, factory runner surfaces.


    1. Any engine up to a maximum of 2440 cc original displacement with increase of bore to 0.040” (1.0 mm) oversize.

    2. Smaller engines are not limited on bore oversize.

    3. Any cam and valve train, hydraulic, roller or solid.

    4. Any OEM or forged pistons.

    5. Stock or oversize valves.

    6. Multi angled valve grind, maximum 75 degree seat angle.

    7. Minor clean up of casting imperfections such as ridges and sharp corners.

    8. Multi angle valve seats.

    9. Beaming, shot peening and balancing of rods.

    10. Aftermarket steel alloy rods with solid web and beams.

    11. Any header.

    12. Compression up to a maximum of 11.0 to 1.

    13. Carburetor adapter placte and gaskets up to 2 ¼” maximum thickness.

    14. Carburator may have choke assembly removed, power valves and jets may be changed.

    15. Aftermarket ignition systems (MSD, etc) distributors and crank triggers.


    1. Porting or alterations of internal cast surfaces, except as noted in #7 above.

    2. Magneto ignitions.

    3. Dry sump oil systems.

    4. Internal modifications to carburetors/metering blocks.

    5. Lightening of crankshafts/knife edging.


    1. Engines built of various block, head, crank combinations or de-injections require prior approval by technical committee and will receive individual base weights if approved.

    2. Keith Dorton 2300 style carburetor allowed, model 0-80787-1 and metering block #134-27.

    3. Currently tagged parts are grandfathered for use of a period of two years.

  3. Fuel injected or double overhead cam

  4. Required

    1. All engine, air intake and fuel delivery, ignition components to remain OEM, or OEM direct replacement for declared engine. Fuel pressure to remain within factory spec.

    2. Factory wire harness including all sensors related to engine and electronic control unit.


    1. Engines up to a maximum of 2440 cc original displacement.

    2. Clean up of head and block surface only, max .010”.

    3. Any air cleaner.

    4. Exhaust manifold/header change subject to technical committee approval.

    5. Removal of emissions controls (EGR, EVAP, Air injection/pumps, catalytic converters).


    1. Modifications of any engine or control component, or mixing of components.

    2. Increase of bore.

    3. Aftermarket electronics.

    4. Variable valve timing, variable valve lift, variable intake length (Vtech or equivalent).

  5. General these rules apply to all engines in conjunction with rules specific to engine type

  6. Required

    1. Exhaust system and muffler exiting behind drivers back, not exceeding 85 db noise level measured at 100 ft distance behind car. Also to meet track rules if more restrictive.

    2. Mechanically sealed dipsticks.

    3. Minimum 1 litre metallic radiator overflow/catch can sealed with rollover check valve.

    4. Minimum 1 litre metallic oil vent breather overflow catch can with rollover check valve (sealed system).

    5. Radiator remaining in stock location (front of engine). Mounting may be changed.

    6. Operating starter.


    1. Engine mounts may be reinforced or manufactured (solid).

    2. Balancing of crankshaft.

    3. Oil pan capacity may be increased.

    4. Alternators.


    1. Engine setback. Engine location determined by bellhousing relation to firewall or front axle centerline.

    2. No portion of a cooling system may be installed in a drivers compartment.

    3. Lightening of crank or knife edging, non stock counterweights.

    4. Turbo or super chargers, nitrous injection.

    5. Use of antifreeze or glycol compounds.

    6. Oils and lubricants banned by track venues.

    7. Removal of any casting identification or serial numbers on engine parts, sensors and accessories.

    8. No portion of exhaust is to be exposed in driver's compartment.




  1. Fuel lines including (EFI) returns, running through drivers compartment must be enclosed in steel.

  2. Electronic fuel pumps require a shut off switch (oil pressure switch) Momentary override allowed for start up.

  3. Fuel cell designed for circle track racing, max 8 gallon size enclosed on min 22 gauge steel, securely mounted and protected by 1 ½ “ x .125” strapping or 1x1 tubing, attached to cage or frame/body.

  4. Fuel cell is to be located minimum 12” from bumper, in opposite end of car from engine, and have 10” ground clearance.

  5. Fuel cell may only be filled through a cap mounted directly on cell.

  6. Quick turn caps are to be tethered by safety cable. Metallic filler necks and cell components are to be grounded to car frame.

  7. Fuel cell vent lines must have check valves for rollover.


  1. Automotive fuel dispensed from a retail service station (unmarked) maximum octane rating of 94.


  1. Aluminum lines.

  2. Rubber fuel lines under floor plan.

  3. Race fuels and home brews.

  4. Fuel filler necks.


Transmission & Driveline

  1. Standard Transmissions (OEM)

  2. Required

    1. OEM stock clutch and single disc.

    2. OEM standard transmissions.

    3. Clutch scatter shield, min .250” steel or approved conveyor belt material, minimum 180 with full driver protection.

    4. Operational first and reverse gear.


    1. OEM stock flywheel may be lightened and balanced, or billet steel flywheel.


    1. Aluminum flywheels, ram clutches, couplers, mini clutches or multi disc clutches.

  3. Automatic transmissions (OEM)

  4. Required

    1. Operational torque converters.

    2. Sealed dipstick.


    1. Electronic control alteration.

  5. Driveshaft on real wheel drives.

  6. Required

    1. OEM steel drive shaft painted white.

    2. Two drive shaft loops, min ¼” x 1” within 8” of each end of shaft.

  7. Differentials on real wheel drives.

  8. Required

    1. OEM axle/differential, solid or independent depending on construction.

    2. Breathers preventing accidental loss of lubricants (rollover protection).


    1. Open style or locked by welded spiders or mini spools.

    2. Rear end swaps maintaining same attachment style and configuration.


    1. Quick change rear ends, functional limited slips, full spools or lockers.




  1. OEM type operational brakes required on four corners of the car.

  2. OEM stock mounts and brackets for front brake callipers.

  3. Rotors must bolt to spindle/axle hubs.


  1. Rear brakes may be converted to disc brakes using all OEM callipers and ferrous rotors.

  2. Tilton style/proportioning dual master cylinders.

  3. Proportioning valves.

  4. Custom brackets for rear disc brake callipers.


  1. After market or home grooving, drilling, venting of rotors.




  1. Battery restrained in a reinforced acid proof/container securely mounted to a solid portion of the floor pan or frame in drivers compartment behind driver (unless otherwise approved by tech committee).

  2. Battery terminals are to be protected against shorting.

  3. Battery master (kill) switch mounted in a conspicuous and easily reached centered dash or tunnel position that is accessible by driver and track safety staff from both sides of car. On/Off positions to be clearly labelled.




  1. Each owner/driver is responsible for their own safety equipment as it pertains to condition and wear, expiry dates and suitability of use in racing events. Drivers should fully understand the limitations of protedctive ratings such as SFI ratings.

  2. Annual service checks of fire extinguishers.

  3. Installation or use of all equipment is to follow manufacturers instructions, to be kept available for inspection at all times.


  1. Driving suit, SFI rated or equivalent.

  2. Helmet rated for automotive racing (current Snell or equivalent).

  3. Balaclava for non-fire rated helmets.

  4. Fireproof driving gloves.

  5. Fireproof driving shoes.

  6. Neck collar or restraint system.

  7. Five (5) point seat belt system, 3” double shoulder strap, 3” lap belt with quick release, 2” sub belt, mounted securely to cage on welded tabs and bolts, max 5 years old.

  8. Fire resistant roll bar padding on all bars within reach of the driver's limbs.

  9. Window net manufactured for racing with quick release mechanism positioned for removal by both driver and safety crews.

  10. 2 ½ lb class BC fire extinguisher in drivers compartment.

  11. 5 lb dry chemical extinguisher visible in pit area.

  12. High back (headrest) one piece aluminum racing seat.

  13. Collapse mechanism on steering shafts.


  1. All safety equipment exceeding these minimum requirements.


  1. Hans style neck restraint system.

  2. Sternum strap.

  3. Functional quick release on steering wheel.

  4. On board fire extinguisher systems, minimum 2 outlets, 1 to engine compartment, 1 to fuel cell area, release activation from drivers position.

  5. Aluminum leg, rib, helmet, and shoulder extensions providing further restraint/support of driver or containment seats.

  6. Fire retardant undergarments or multi layered suits.


  1. Any frayed, damaged/cracked or soiled safety equipment.




  1. Radio communication between crew and driver is priviledge allowed, but may be revoked for unsportsmanlike actions.

  2. All cars are to register their radio models and frequencies with the club.

Club spec for tires:

  1. Current tire – Supplied by Finish line Hoosier 700 series 7-8” wide.

  2. Maximum of 6 new tires in season, serial number to be recorded to tech committee.

  3. Replacement of tires above the limit allowed only if damaged tire are inspected at the race event where the damage occurred and approved by the tech committee.

Car race weight and adjustments recommended by tech committee.

  1. Cars are to weight a minimum of the engine base weight combined with any appropriate additional weights added to the engine base weight and resulting in the required Car race weight.

  2. Weight additions:

    1. For an Independent rear end, add 0 lbs.

    2. For a front wheel drive car, add 0 lbs.

    3. For mixed suspension vehicles (Not single model), add 50 lbs.

    4. For fibreglass bodies, add 25 lbs.

  3. Minimum race weight with deductions/additions 1800 lbs.

  4. No car will be required to weigh more than a maximum race weight of 2500 lbs with driver.

  5. At any given time, during a sanctioned event, all cars must weigh their minimum race weight with driver.

  6. Maximum of 56% left side weight with driver.

  7. On weighing of cars, no topping off of fluids allowed. Parts lost or removed during race cannot be added to achieve weight.

  8. Weight must not be added if an instruction has been given to report to the scales. Weight may be added up to the start of main events if no instruction has been given.

  9. Weight adjustments are intended to provide a fair and equitable racing venue, but not to give advantage or penalize any one individual or class of car/engine unless it is clearly illustrated that there is an obvious advantage that needs to be addressed and that the current rules do not address.

  10. The board of directors may direct the addition of weight to cars to equalize the level of competition.

    1. No weight adjustment shall be implemented until 2 races after a major change of rule or equipment that would affect performance.

    2. At regular intervals fast lap times for events are to be reviewed to determine if a particular type of engine is at an unfair advantage over other cars in the club. The tech committee will review if a weight adjustment is required.


Engine base Weights.

Minimum car base weights are determined by the engine being used in accordance with the following list
Currently 1.0 lbs per CC of engine as recommended by members.

bottom of page