Vehicles: • Any two or four-door foreign or domestic car with a 94-101.5 wheelbase. Wheelbase must match

the make and model of the car. A 1” tolerance will be given here. • Must have correct CC’s/weight listed on

the car with penalties added for the scale operator. If not listed correctly you could be disqualified. • You may

run a complete aluminum body but must meet the body regulations. (See Body Measurements). Max body

width of 68” at any point. • Aftermarket nose piece OK. No wider than 1 inch outside of tires. Front fenders

must be made of steel or aluminum. (NO MD 3 STYLE NOSES ALLOWED WITH MOLDED FENDERS, ELEPHANT

EARS OR WINGS) May run a composite late model roof. • Interior panels may be removed. • NO FWD or MID

Engine Cars • Must have a firewall in the stock location (no further back than 2 inches from rear of valve

cover) made from a minimum of 14 gauge steel. From the original master cylinder hole and up can be

replaced with aluminum, but there can’t be any holes in the aluminum. Holes in the firewall need to be

covered over, especially in front of the driver’s area. • Must have a full factory floor pan on both. Repairs to

the floorplan are allowed but you must use a minimum of 14 gauge steel for the repairs. • Must have a rear

firewall or drivers compartment must be boxed in completely. • May run a 8” tall rear spoiler. It can’t be any

wider than the rear quarter panels of the car. • Interior spoiler can’t be any taller than 4” or taller than the

dash of the car. Can’t extend past the driver seat. • Rear bumpers must NOT extend past the inside of the rear

tires unless it has a bumper cover or turns forward (if turned forward must be on a 90° angle NO SHARP

CORNERS / EDGES) • 40 inch maximum ground to the deck (bottom of the spoiler). A 1” tolerance will be given

here. • Optional: The rear of the car can remain open. Aluminum is ok to close the rear of the car. • Must start

the race with a hood. • Breather may stick through the hood. • No Cold Air boxes allowed. • May have a heat

shield under the hood over the header only. No longer than the length of the head. • May have a hole in the

firewall big enough for the header to pass through. (tech discretion if the hole is too big). • No additional side

spoilers can be added to the side of the roof. ** All body infractions are not acceptable (tech man

discretion)**

Chassis / Suspension: All chassis /suspension components must be either OEM or OEM replacement and to

be UNALTERED unless specified throughout the following rules. Factory strut/shock towers should be utilized

on the chassis unless otherwise covered in these rules. Repairs will be allowed if needed but must remain in

the stock location. • Must have a roll cage and all safety equipment. • Roll cage must be secured to the

unibody. • NO Tube Chassis Allowed. NO “X” Bracing Under Floor Pan. • Square/round roll cage tubing from

the strut towers forward is acceptable. Strut towers need to be in stock location and will be checked with a jig

if needed • May use square/round tubing or roll cage material from the back of shock mounts to the rear of

the car. Must be straight, no angling of material. • All A-frame, control arms, trailing arms, and leaf spring

mounts must be stock and mounted in the STOCK location (may cut upper or lower A-frame for caster/camber

adjustments). May drill holes in the front lower control arms to help keep mud out. Max of 4 holes no larger

than ½” each. • May take the spindle and machine it to fit a later model strut. All machining and or shims must

be parallel. No angle milling/grinding to enhance performance. • Stock type (non adjustable) trailing arms only

with exact same length as OEM. • May have a spring locator/bucket on the lower control arm to keep spring in

the stock location. • Lowering blocks ok. • Leaf spring cars may lengthen rear shackles. • Caster / Camber

plates ok. • Adjustable buckets or Jacking Bolts are ok but MUST remain in the STOCK location (Buckets or Jack

Bolts may be raised for spring travel). If not in the STOCK location you may be subject to disqualification min of

7-1/2 inches from center of shock bolt to center of jack bolt. Buckets or Jack Bolt Must Be in Fixed Location.

(May select a random car to measure by for comparison). • Shocks in stock location only. • Max height for coil

springs is 13 inches, if any suspension component is found illegal it will be grounds for disqualification

ENGINE: ALL Engine Core Parts (ex: Block, Head, Crankshaft, and Intake) Must Have Been Available on Cars or

Trucks Sold to the General Public in the United States of America by Mass Production. All Parts Must Be OEM

of the Same Brand Vehicle You Are Racing. ALL PARTS MUST HAVE COME ON VEHICLES SOLD IN THE UNITED

STATES OF AMERICA.** ** All engine parts are to remain STOCK or STOCK REPLACEMENT unless they are

covered in the sections below. **MARINE, INDUSTRIAL, OR SPECIAL PRODUCTION PARTS NOT PERMITTED.** •

Stock engine location. No altering of the firewall to set the engine back • No engines with more than 2 valves

per cylinder. • Ford in a Ford: Toyota in a Toyota. • No rotary, turbo, or double overhead cam engines

permitted. • Cannot mix and match different engine combos to come up with an oddball size engine. The

engine must stay the basic bore and stroke combo that it was when it was produced by the manufacturer. •

OEM blocks only .080 overbore max (other than what is listed below). 5 c.c. tolerance will be given for wear.

No engine can exceed 2500 c.c.’s + .060” overbore. **Toyota 1600 and 1800s may bore to .120” overbore.**

**Ford 2300 may only bore to .060” overbore.** • Ford may Sleeve a 2300 c.c. block down to 2000 c.c.’s. •

Aluminum adjustable cam gear and pulley allowed. • Any steel connecting rod, no aluminum, titanium, or

carbon fiber. • NO titanium wrist pins. • Only Babbitt style bearings allowed (No roller bearings) coated ok. •

Stock crankshaft with stock stroke only, ± .010” tolerance allowed. • Crankshaft rod journals may not be

ground any smaller than 1.771”. Will allow .010” to repair crankshaft if needed. • NO AFTERMARKET CRANKS.

(Stock lightened crank must add 50lbs to the car as a permanent penalty, not claiming you have the light crank

is an automatic DQ). • All engines must use an in-block wet sump oil system. • Racing oil pans permitted. • NO

dry sumps allowed. • Any flat top piston – Toyota 1600 and 1800 may run dome heights of .235” tall only. •

Formula for cc’s (bore X bore X .7854 X stroke X 4 = cid then divide cid into .061= cc’s). • May run evac to

header system only. NO VACUUM PUMPS. • May run an electric water pump. • May run an electric fuel pump.

• Ignition – stock type (must fit in stock size cap) or Mel’s Ignition ONLY (NO BOOSTERS on Ignition). (NO

TRACTION CONTROL DEVICES ALLOWED)(NO ECU Units) (NO MSD Style)(NO MSD Style Ignition Boxes) • Single

Ignition coil Only. • Radiator must be mounted in front of the engine. A racing oil pan is recommended with a

1in plug for inspection of the crankshaft and rod inspection.

Heads: OEM heads may be changed from one size engine to another without any modification. • It may have a

competition valve job with any angle or depth but it must not touch the bottom of the valve boss. • All angles

MUST be concentric with the valve guide. • Any steel valve stock diameter may be undercut stem, + .009

tolerance on the valve. • Valve stem must be stock diameter for year model of the head. (No 7mm valve stem

in a Ford) • Double valve springs ok but must be steel. • Beehive valve springs ok but must be steel. • Any

steel retainer. • Lifter has to be the stock diameter. Solid lifters are allowed. • NO PORTING or POLISHING. •

NO “M13” head allowed

Intake: OEM intake only but may change from one size engine to another without modification unless stated. • Ford must run D4, D9, or E1 style intake. Anything other than listed must be approved by Track Tech. • Must be a single carburetor intake. • No side draft intakes. • OEM style gasket only. (.07 max thickness) • NO TAPERING, NO RADIUS, OR BLENDING. • Stock or Stock Replacement intake gasket only. NO PORTING OR POLISHING

Stock carburetor or Holley 350 cfm (#7448 or 0-80787-1) or Holley 500 cfm #4412 must pass no-go gauges. • Must have an air horn with the number. • Float bowl must face forward. • May cut the end of screws and have holes in butterflies. • No thinning of shafts. • No polishing or grinding. • Spacer and adapter – any 1” max thickness total – NO TOLERANCE. The spacer cannot protrude into the intake. 2 gaskets @ .070 thickness maximum each. • May run billet metering block. • No interchanging of parts from a 350 carb to a 500 carb, or vice versa.

Solid or Hydraulic, NO ROLLERS • Maximum .550” lift measured at the valve • No swapping of any lobes – must be in stock order • No roller or needle bearings allowed. Stock type only, coated bearings are allowed.

Flywheel & Clutch Assembly: Racing clutch and flywheel assemblies allowed (Goldstar, Quartermaster, 10,000 rpm…). • NO Ram Coupler or any other direct-drive units. • Stock flywheel 11lbs minimum allowed. • Must use stock or stock replacement clutch and pressure plate if using a stock flywheel. • NO LIGHTENING OF STOCK PRESSURE PLATE only grinding, adding weight, or drilled holes to pressure plate for balancing are allowed. Drilled hole size is 7/16 diameter max (NOT all around the pressure plate). If there are holes all around the pressure plate it WILL be considered lightened. • Studs for pressure plate allowed (must be a purchased stud, no custom machined studs allowed) • Cannot relocate pressure plate bolt hole pattern

Transmission: MUST BE STOCK with all working forward and reverse gears. • Cannot remove or lighten drive or reverse gears. • May remove speedometer gear only. • No polishing or coating.

Driveshaft: Minimum of 1 1⁄2” diameter • Must be steel • Must be painted white.

Header: Headers or stock manifold allowed • Header may be coated. • Nothing should protrude into the collector if so it WILL be subject to a Disqualification. • OEM style gasket, factory replacement gasket, or one from Schoenfeld will be allowed.

Brake System: • 4 Wheel disk brakes permitted but must have OEM calipers for the vehicle. • Dual master cylinder permitted. • 3 Wheel brake shut off permitted. • Stock rotors and drums only. No cutting fins off of drums. No drilling of holes in rotors. • May remove caliper and rotor on RF Only. No other machining is allowed.

Wheels & Tires: • Wheels must be Steel 8” maximum width. • May use bead locks on all 4 wheels (bead lock must face outward). • Hoosier 1600 TIRES ONLY after July 2026 (Prior to July of 2026 any tires will be legal. After July only the 1600 tires will be legal• Grooving, Sipping, and Needling allowed.

Rear ends: • Any Stock rear end up to 8.8” gear for the make of car. • Axles, Stock or Stock Replacement permitted (may weigh to compare if necessary) • No gun drilled axles. • No full spools. • Mini Spool allowed but MUST be steel. • May lock rear end by welding, mini spool, or limited-slip (limited-slip unit must be stock, NO aftermarket units). • No ratcheting spools allowed. • May run cut gear.

Fuel: VP RACING FUEL available at the racetrack or any Pump gas, NO ALCHOHOL and NO ADDITIVES

C.C.’s/Weights and Penalties: Vehicle weight must be listed on each side of the front fenders or hood. • Toyota 2tc & 3tc must weigh a minimum of 2000 lbs. • Ford 2000 must weigh a minimum of 2150 lbs. Ford 2300 must weigh a minimum of 2300 lbs. Ford 2500 must weigh a minimum of 2,500 lbs. Lightening the crankshaft is a 50lb penalty.

Scales: Boyd Raceway will go by the scales that track provides for everyone. It is your responsibility to check the weight of your car on our scales. If you fell there is an issue please talk to tech man before the main event. A 10lb tolerance will be given at the scales.

If You Are Caught Cheating for A major violation such as porting, light crank, stroker crankshaft, NOS, anything listed NOT Allowed, or something without a doubt you knew was cheating (and it’s your job to know the rules and know if you’re cheating) you will be stripped of all points, winnings, and banned a period of time to be determined by the seriousness of your infraction and or fined $$. Minor Offense you will forfeit all points and winnings for that night and possible race suspension & fines (track discretion). IF IT DOES NOT SAY YOU CAN’T DO IT, IT DOES NOT MEAN YOU CAN. ASK THE TECHMAN THEY HAVE THE FINAL SAY. ANY QUESTIONS PLEASE CONTACTUS via email dirttracker29@gmail.com

Future plans for this class will mean we’ll be introducing a new motor that will be legal to run. It’s a Ford 2.5 Duratech motor. It’s a front will drive, double overhead cam, aluminum head motor that there are adapters to fit these into our current cars. As expected the Ford Lima motors are getting harder to find and if we want to continue the class we need to be looking at new alternatives. There’s a group already running these setups with 100% bone stock wrecking yard motors turning around 7600 RPMS and no issues. So if you need a new motor, just go to wrecking yard and get one cheap and get back to racing. We’ll keep everyone informed as we move along to these motors over the next year or so. Current motors will always be legal if you don’t want to switch.