EAST ALABAMA MOTOR SPEEDWAY

 

 

2009 JIMMY THOMAS MEMORIAL

 TECHNICAL RULES

 

For Technical Questions Please Call Our Tech Director Tim Sims At 334-864-0805 After 6pm Or E-mail Tim Your Questions Click Here To E-mail Your Technical Questions

**Please Note That Rule Changes Or Corrections Will Be In Red.

General Rules For All Classes:
Fire suit mandatory, Fire extinguisher mounted in reach of driver mandatory, RaceCeiver mandatory. NO driver/crew radio communications. Gas ONLY all divisions except Modified.  NO Mirrors. All weights are before race with driver. 1 lb. per lap burn off for heat, consy & feature races. All cars are subject to inspection at any time. A weight penalty may be added for minor deviation in class rules, major deviations will result in car being placed in class that it is best suited for. These rules are intended for fair competition in all divisions. Cars will be placed in division that they are best suited to race in. Tech officials decisions are final. EAMS scales are the official scales of the weekend, it is the driver's responsibility to make sure they meet the minimum weight, not officials responsibility to make concessions. Hoosier Racing Tires, Sunoco Race Fuel, along with other parts available at the track. EAMS is not responsible for misinterpretation of the rules if your not sure ask. Good Luck and Good Racing To Everyone.

GM Crate Engine: GM Crate Engine P/N 88958602 - 2200lbs / P/N 88958604 - 2350lbs. Engines must meet GM factory specs and Rebuilt engines must meet GM rebuild specs. All motors must have GM, GM/RM or Crate Racin USA sealing bolts, (No black market seals).  Any motor failing inspection will be confiscated.  NO Tri-Y headers, 1" carburetor spacer max, 602 engine may run 2” carburetor spacer maximum. SAS, WoO body rules, 12" rear spoiler ok.  Engine placement 7” from center of ball joint to #1 spark plug. Tire rule Hoosier Crate D21, Crate D55 or 2700.  OK to groove & sipe tires. Tires must have all numbers and name on the tire, NO grinding off of numbers or compound, any tire that has been altered will be illegal and confiscated.

 

Super Street: 362ci small block limit, stock stroke crank, flat top pistons, any flat tappet camshaft, lifters must be stock OEM diameter to make of engine (ex. Chev. .842”) Chev. 350 valve size 1.94 & 1.5, any bigger valves add 50 lbs, Factory cast iron heads only, World Products 4360 & 4361 OK. NO aluminum heads. Any after market, Bowtie, Vortec/Bowtie or angle plug heads add 100lbs (example Bowtie head & big valves add 150lbs) NO porting or polishing heads, intake or carburetor, stud mounted rockers only, NO shaft or pedestal mounted rockers.  750cfm Holley, 3310 Holley, or EAMS spec carburetor no porting or polishing, crate engines may run unported or polished 650 Holley. All carburetors checked with go-no-go gauges. Open tires, WoO, S.A.S, NLMS Body rules, 8" rear spoiler, frame MUST have full stock front clip, Engine location 1” behind weight jack bolt to #1 spark plug, (Ford 3” from weight jack bolt to #1.)  WEIGHT: 3 link rear suspension 2800lb, 4-bar rear suspension 2900lb,  GM Crate Engine P/N 88958602 deduct 250lbs / P/N 88958604 deduct 150lbs. Crate Engine may run 10” rear spoiler with 10” tall spoiler supports.

Hobby: 362ci small block limit, GM stock production steel heads, vortec heads OK, World Products part #4360 or 4361 OK. NO Factory performance or aftermarket heads except the ones specified here, stock bore and stroke .060 overbore permitted, stock stroke crank, flat top pistons, hydraulic lifters (.008" valve lash maximum), lifters must be OEM diameter to make of engine, ex. Chevy .842”,  stud mounted roller rocker arms, Chev. 350 valve size 1.94 & 1.5, any bigger valves add 50lbs, no aluminum heads, cast iron intake or low profile aluminum intake (example: Edelbrock torkerII, #5001, Performer RPM #7116, or #7516), any other high rise or raised plenum aluminum intake add 100lbs, no porting or polishing heads, intake or carburetor. Carburetor vacuum secondary ONLY. Holley 600cfm maximum, EAMS Spec 1850 carburetor, no hp carburetors, no double pumpers, All carburetors checked with go-no-go gauges, 1" carburetor spacer allowed, headers allowed, any stock type (NO MSD boxes) electronic ignition, steel wheels, aluminum wheels add 100lbs, 11" Spec racing tire or DOT street tires, 6" spoiler allowed, jack bolts, stock chassis, stock type rearend 9" ford allowed,  stock type transmissions ONLY, NO bert or brinn type transmissions, automatics must have torque converter, NO dump valves,  no 4-bar suspension, no spring loaded torque links, biscuit bar or solid bar OK, stock steel bodies with stock type nose pieces, after market Five Star or Performance body OK, must be steel except for roof and hood. NO wedge type or late model style bodies, cars with these style bodies must run Super Street. Weight penalty for unapproved bodies or moving to another class, at tech inspector's discretion, 3200lbs with driver, GM Crate Engine P/N 88958602 permitted with factory seals, or remain seals with above carburetors or EAMS 650 Crate Spec carburetor 3100lbs.

Bomber: 362ci small block maximum, Stock Bore & Stroke Combination ONLY! .060 over bore permitted, Stock length cast or forged steal I-beam rods with 3/8 bolts or cap screws ONLY.  NO angle plug or Vortec heads permitted, Stock steel street production heads ONLY, NO porting or polishing heads, intake or carburetor, GM stock valve size 1.94 intake and 1.5 exhaust maximum, flat top pistons ONLY, hydraulic lifters and camshaft (NO 4-7 swap cams), lifters must be OEM diameter to make of engine, ex. Chevy .842”, stock rockers only, NO roller or roller tip rockers,  Any cast iron low rise intake or GM aluminum low rise intake OK, all other aluminum intakes add 100lb, 600cfm vacuum secondary Holly carburetor, EAMS Spec 1850 carburetor or GM quadrajet permitted, NO double pumpers or 650 carburetors, 1" carburetor spacer allowed, headers OK, any stock type (NO MSD) electronic ignition, stock suspension ONLY , stock mounted shocks and springs ONLY, stock steering parts only, stock steel bodies ONLY, full steel firewall and interior floor pan mandatory, 6" spoiler, jack bolts add 50 lbs, no panhard or pull bars, stock type transmissions ONLY, NO bert or brinn type transmissions, automatics must have torque converter NO dump valves, stock type single disc clutch ONLY, NO triple disc or couplers, fly wheel 14lb. minimum, 9" Ford rearend OK.  No safety hubs or wide 5 hubs,  10" steel wheels Maximum, NO aluminum wheels, 8" width tire maximum, 3300lb with driver. 112" wheel base or longer cars deduct 100lbs, GM 602 crate engine allowed.
Open Wheel Modified: UMP/IMCA Rules, NO engine claiming.  May run Hoosier D30 8" tires.

4-Cylinder: Any flat top pistons (except 1600 or 1800 Toyota may run stock dome piston .267” max) all others dome pistons add 50lb, any cam, Ford Factory production aluminum head add 100lb, Esslinger head on Ford or any other aftermarket aluminum heads on any make add 200 lbs.  NO dual cam cylinder heads, 2 valves per cylinder ONLY.  500cfm Holley carburetor maximum NO ported or polished carbs., checked with go-no go gauges top to bottom, headers allowed, no rotary engines, steel wheels, 10" tire width, weight 1 lb per c.c. with driver, minimum weight 2000lbs,  5" rear spoiler, stock chassis, stock suspension, NO coil-overs, aluminum bodies 50lb penalty, weight penalty for modified or non stock suspension pieces, race winners head may be pulled to verify engine cc's.   May run front wheel drive, must add 50lb. to total weight.