ENDURO

Weight Limit 2900 lbs.

602 Weight Limit 2600 lbs.

 

Frame

A.        Stock for make and model.

 

Roll Cage

A.        All cars must have boxed cage with 1 1/2" o.d. x .095" minimum tubing's.

B.         Must have 3 bars in left door and two bars in right door.

C.        Loop around engine compartment permitted.

D.        Two bars may run top main roll cage loop to rear frame rails.

 

Wheelbase

A.        Stock for make and model ½  inch tolerance SIDE TO SIDE.

 

Suspension

A.        Must be stock for make and model.

B.         Jack Bolts permitted.

C.        Racing shocks permitted.

D.        Racing springs permitted.

E.         Aftermarket Top A Frames permitted; must be mounted on stock frame mount only.

F.         Aftermarket bushings permitted

G.         No tubular lower A-arms permitted

 

Steering

A.        Stock for make and model.

 

Brakes

A.        3-Wheel brakes system permitted.

B.        Factory disc brakes on rear (only) permitted... no

            aluminum.

C.         No dual master cylinder permitted.

 

Wheel/Tires

A.        Steel wheels only - 8" or 10” permitted.

B.         Track tire HOOSIER D-30 permitted. No grooving or cutting.

C.        Oversize studs and lugs are permitted.

D.        1/2" on A&B.

E.         Bead locks permitted.

 

Ignition

A.        Factory HEI or MSD permitted.

 

Rear Ends

A.        Stock for make and model.

B.         May be locked.

C.        9 inch Ford permitted

 

Body

A.        Factory stock / aftermarket bodies permitted.  No homemade bodies allowed.

B.         All glass and flammable material items must be removed.

C.        Headlights, tail lights, and wheel covers must be removed.

D.        Body may be hulled.

E.         Doors must be strapped, welded or bolted.

F.         Area between driver and gas tank must be totally covered with sheet metal.

G.        May run after market nose; 6 inch max material; 18 inch side spoiler. 

H.        Body must be closed in rear.

I.          Must have stock firewall and stock floor pan to rear of drivers seat on left hand side of car.

"All Enduro Cars Must have Track approved Firewall!!"

 

Bumpers

A.        Stock for make and model.

B.         Must be securely attached.

C.        Must have lifting hook for wrecker.

D.        Must not have exposed sharp edges.

E.         Must be track approved.

 

Engines

A.        Must be stock for make and model.

B.         Must be in original location 1 inch tolerance.

C.        .060" overbore permitted.

D.        Headers permitted. Full length parallel to ground.

E.         Chev. GM 362 cubic inch maximum.

F.         CAM GM up to 488 lift maximum at valve hyd. or solid-NO Roller

G.        Scat or Eagle stock replacement rods permitted.  Stock stroke for make and model.

H.        Flat top 4 valve relief pistons, no light weight.

I.          Scat or Eagle crankshaft permitted. Must be cast steel only, no polishing or knife-edging.

J.          Aluminum water pump and pulleys permitted.

K.        Ford and Dodge stroke may vary.

 

Heads

A.        Maximum valve size intake 2.02, Exhaust 1.60.

B.         No angle cut heads.

C.       3 angle valve job permitted.

D.        No Titanium.

E.        No porting or polishing.

F.         Heads 300 H.P. permitted.   Roller rocker arms permitted.

G.         Screw in studs & plates permitted.

H.        GM Head numbers: 416, 882, 993, 041, 487, 336, and VORTEC only.

I.        No ten degree Ford heads permitted.  Must be factory type heads.  World products heads permitted #WRL-053030-1   180cc intake runner and 58cc combustion chambers.

 

Intake Manifold

A.        After market intake permitted.

B.         One 4-barrell type only.

C.        High performance intakes permitted.

D.        Aluminum quadra-jet intakes permitted.

 

Carburetor

A.        Stock for make and model.

B.         Choke flap may be removed.

C.        Stock 3310 Holley Single Pump only.

D.        Meter block permitted in back.

E.         No porting or polishing

F.         No screw permitted in secondary vaccum

 

Flywheel/Clutch

A.        Steel flywheel only.

B.         Z-28 flywheel permitted.

C.        Pressure plate and clutch disc must be stock appearing for make and model.

D.        Flywheel must weigh a minimum of 14 lbs.

 

Fuel

A.        110 Race Fuel permitted.

B.         No additives.

C.        Electric fuel pumps are not permitted.

D.         Nitrous oxide systems not permitted.

E.         No supercharges or turbochargers permitted.

 

Radiators

A.        Any type radiator.

 

Starters

A.        All cars must start under its own power.

 

Transmission

A.        Stock 3, 4, or 5 speed are permitted.

B.         Automatic transmissions are permitted.

C.        Must have all gears in transmission.

 

Safety Requirements

A.        Approved helmets and firesuits.

B.         Properly installed 3" quick release lap belt with a 2" shoulder harness in good     condition.

C.        Properly and securely mounted fuel tank in trunk.

E.         Must have securely mounted bucket type or racing seat.

 

Numbers

A.        Must be at least 18" high on both sides of the car.

B.         Must be visible and legible to scoring tower. 

 

Weight

A.        Weight rule 2900 lbs anytime.

B.         602 CRATE engine 2600 lbs.

 

 

PROTESTS

A. Top (3) only allowed to protest.

B. No counter protest allowed.

C. Fees:  $300.00 per 3 items (Bottom End not included)

Bottom End - $600.00

Acceptance Fee - $100.00

D. Track retains $100.00

 

 

VISUAL PROTEST

A. Must be made before event starts.

B. Visual fee will be $50 (per item)

C. Track retains 100% of visual protest fees