Sycamore Speedway Hornets

Sycamore Speedway

Mod 4 Rules (subject to change)

Front wheel drive only 4 cylinder class. NOT NASCAR Sanctioned.
Absolutely NO modifications or enhancements other than what is specified by these rules will be allowed.
In certain rare circumstances where deviations from the rules do not give the car any advantage and may be more economical or practical, you may apply in writing for a waiver asking for an exemption.
This must be submitted to the designated track officials and approved before you compete.
1. WHEELBASE AND ELIGIBLE MODELS
1.1 Any front wheel drive only passenger car, minimum of 10 years old, with a wheelbase of 92” to 104”
1.2 Honda CRX’s allowed.(no DOHC or vtec allowed in crx)
2 THE CAR AND BODY
2.1 Factory OEM for make, model, and year with stock 4 cylinder engine.
2.2 Body, frame, floor pans must be complete and unmodified, except where rules allow trimming
2.3. No rear wheel drive cars or trucks
2.4. All doors must be welded, chained, or bolted shut
2.5. Hood and trunk must be secured with two or more hood pins
2.6 Plastic, trim, and items that could break, burn, or fall off, must be removed in and outside the car
2.7. Both bumpers must be stock, complete and mounted in stock position
2.8. Skirts, hood scoops front air dam and a 3” max height rear spoiler may be installed for cosmetic purposes only
2.9 Anything that can be unbolted (hinges, brackets, etc) may be removed
2.10 You may skin the hood/decklid
2.11 Can run after market nose cover over original stock bumper
2.12 1” maximum square tubing “rub rails” allowed between front and rear wheel wells. Ends must be chamfered and capped (no sharp edges)
2.13 Wheel openings may be trimmed for tire clearance.
3 WINDSHIELD AND GLASS
3.1 All glass (head, tail, and marker lights) except windshield, must be removed
3.2 You may replace the windshield with lexan
3.3 Lexan windshield requires a center brace inside
DETAILED ENGINE SPECIFICATIONS
4 LOCATION
4.1 Engine must be in original stock rubber mounts, in stock location.
5 GENERAL ENGINE CHARACTERISTICS
5.1 Strictly stock for make, models, 4 cylinder SOHC or DOHC engines (no turbos or superchargers)
5.2 No aftermarket performance parts
5.3. Air cleaner must be stock, unmodified
5.4. You may remove unnecessary parts and wiring (A/C compressors, smog pumps, etc)
6 ENGINE DISPLACEMENT
6.1 Stock stroke.
6.2 Overbore of .020 allowed for all makes.
7 ENGINE BLOCK
7.1 Engine block exactly as produced by manufacturer.
8 ENGINE PISTONS
8.1 Stock OEM ONLY.
8.2 No “made for racing” pistons.
8.3 Pistons must be the original or same as original.
9 OIL PAN
9.1 Stock only, with NO additions or alterations.
10 CRANKSHAFT & BALANCER
10.1 Stock only, replacement must be original OEM.
11 CYLINDER HEADS
11.1 Stock Head only.
11.2 No after-market heads
11.3 No porting, polishing or gasket matching
11.4 Altered heads will be confiscated.
11.5 The stock listed valve size/configuration will be enforced
12 INTAKE MANIFOLD
12.1 Must be unaltered stock for that make, model, engine.
13 CAMSHAFT, VALVE LIFTERS AND ROCKER ARMS
13.1 Camshaft, lifters/followers rocker arms must be stock for that make model.
14 COMPRESSION
14.1 Compression ratio may not be altered from stock.
15 EXHAUST
15.1 Exhaust must run under the car, at least to behind the driver’s seat
15.2. No flex pipe
15.3. Effective muffler required 100 decibels maximum @ 100 feet minimum.
15.4. No dual exhaust
15.5 Aftermarket Header allowed
16 CARBURETOR/FUEL INJECTION/PCM ECU
16.1 Must be stock production for that make, model, year.
16.2 Chipped PCM/ECU are allowed
16.3 NO standalones of any kind allowed
17 CARBURETOR /THROTTLE BODY SPACERS
17.1 Not allowed.
18 AIR INTAKE
18.1 Stock air intake and or Cold air intake allowed
19 FUEL SYSTEM
19.1 Stock OEM only.
20 ELECTRICAL / BATTERY
20.1 You may relocate the battery. If in driver’s compartment, must be covered with a marine case or similar
20.2. Battery must be securely mounted to chassis with steel straps.
20.3 Battery Kill Switch-Mandatory in center of car, MUST BE LABELLED. Must disable all electrical power to the car.
21 COOLING SYSTEM
21.1 Stock OEM radiator in stock location.
21.2 Stock production overflow catch-can must be maintained inside engine compartment.
21.4 No extra engine coolers.
21.5 No antifreeze allowed.
22 CLUTCH --
22.1 Stock clutch, pressure plate, and flywheel for that make, model, engine.
23 TRANSMISSIONS
23.1 Stock production transaxle for that make, model.
23.2 Stock type shifter only.
24 DIFFERENTIAL
24.1 Unaltered stock differential only.
24.2 No posi-traction or limited slips.
24.3 Only one wheel may drive.
25 DRIVELINE
25.1 Must be front wheel drive.
25.2 Stock production axles only
26 BRAKES
26.1. Must lock all four wheels
26.2 No aftermarket proportioning devises
26.3. Stock Brakes, pads, rotors, drums
26.4. No drilling
26.5. Stock components only
27 FRAMES
27.1 Body and frame components must be the same. Must remain in original OEM configuration for that make and
model.
27.2 Complete bumper-to-bumper stock frame and unibody must be retained.
27.3 Stub repairs must maintain OEM measurements.
27.4 Welding to OEM seams is allowed for rotted areas, but no reinforcing of suspension or tying into rollbars
28 ROLL BAR INSTALLATION
28.1. Minimum four points around the driver 1 3/4” diameter .090” wall, mild steel. No exhaust tubing or water pipe.
28.2. Roll cage must be sufficiently welded to floor/rocker box, or welded to sandwich plate bolted to floor
28.3. Top of roll bar must be reinforced to the rear with two bars, either to spring towers or rear frame
28.4. Spring towers may be connected side to side, at both front and rear suspension.
28.5. Main roll bar behind driver must contain a diagonal bar
28.6. Minimum of 3 door bars, driver side and passenger side
28.7. Driver side door bars must be covered with steel deflector plate, 1/8” min. thickness
28.8. Minimum of 5 side to side bars:
a. top of main hoop
b. bottom of main hoop about 4” above floor
c. middle of main hoop directly behind seat
d. top front of cage by windshield, and
e. at front of cage at dash height
28.9. No bars through the front firewall, except recommended foot protection bar.
28.10. The cage must protect the driver and will be thoroughly inspected for safety
28.11. Use good common sense; consult persons experienced in building and welding
28.12. Safety padding must be installed around driver (door bars and roll cage bars)
28.13. You may skin door panels for installing roll cage
29 SUSPENSION
29.1 Must remain stock for make, model, and year.
29.2. The only optional exceptions are as follows:
a. You may run camber on the front and rear wheels, no limit. You may only elongate existing
adjustment points to accomplish this
b. You may heat or cut springs to lower the car. Except for exhaust components, minimum ground clearance is 4 1/4” for any part, after the race
c. You may use any steel spring that fits in the stock location
d. Spring rubbers, clamps or threaded collars on springs not allowed
e. Sway bar links must be of equal length side to side, or disconnected
f. No adjustments to rear tow measurement.
30 SPINDLES
30.1 Stock OEM spindles/knuckles only for that make and model
30.2 Oversized studs recommended.
31 Steering
31.1 Stock steering systems only.
31.2 You may replace or modify the steering column to accommodate a removable wheel
32 GROUND CLEARANCE
32.1 Frame rails must maintain a minimum ground clearance of 4-1/2 inches at all times, with driver in car.
33 WHEELS
33.1 WHEELS MUST BE STEEL, MAX 6”, ALL FOUR THE SAME DIAMETER (NO ALUMINUM OR MAGNESIUM)
33.2. You may run an aftermarket heavy-duty wheel, max 4” backspace from center
33.3. 1” lug nuts are required on the right wheels, it’s encouraged to use them on all four
33.4 Lug nut threads must be visible on outside of lug nuts
33.5 Wheel spacers allowed, maximum thickness 3/8”
34 TIRES
34.1 Tires must be same size/series per axle. Maximum 15” P195 Series
34.2 Any loss of a wheel or tire requires driver to immediately leave the race track
34.3 No snow tires, now Goodyear Wrangler LT or AT tires
35 WEIGHT
Motor Size (in cc) Minimum weight
35.1. 0 to 1999 2200 lbs
35.2. 2000 to 2299 2300 lbs
35.3. 2300 to 2600 2400 lbs
35.4. For 2 valve OHC engine Add 25 lbs
35.5. For 3 valve OHC engine Add 75 lbs
35.6. For 4 valve OHC engine Add 100 lbs
35.7. for Variable timed engines Add another 100 lbs
35.8. All weights include driver
35.9. All weights will be securely bolted to frame or cage, be painted white, and have car number on it
35.10. Any car with an apparent time advantage can and will be required to add additional weight in 100 lb
increments
36 GAS TANK INSTALLATION
36.1 Stock fuel tank located in front of rear wheels can be left there but must be secured with two extra metal straps
36.2. All other fuel tanks must be mounted in the trunk area between the rear wheels as far forward as possible
36.3. Tanks must be fastened with steel straps, bolts, and oversized washers
36.4. Filler spouts must face left
36.5. A complete steel firewall must be between the tank and the driver’s compartment
36.6. Fuel cells are recommended, 8 gallon maximum, and must be mounted on top of floor pan
36.7 Fuel lines MAY NOT be run through the drivers compartment.
36.8 Fuel tank rupture or fuel spillage will draw an immediate black flag.
37 PERSONAL PROTECTION REQUIREMENTS
37.1 Driver must wear full racing firesuit, gloves, & eye protection. No polyester clothing allowed.
37.2 Approved helmet required. (Section 7--1.10)
37 PERSONAL PROTECTION REQUIREMENTS continued
37.3. Window Nets Mandatory with seat belt style release at front top cage upright
37.4. Fire Extinguisher Mandatory, securely mounted, fully charged, dial type
37.5. Tow Hooks-a secure towing device (hook, etc) MUST be in place both front and rear, securely fastened and
located so as not to present a hazard in the event of contact
37.6 Five point 3” minimum width lap and shoulder harness, dated 2006 or newer. Crotch strap required.
37.7 .Belts must be anchored to roll cage or OEM anchors. Belt anchors must swivel. Grade 5 hardware required.
46
37.8. Shoulder harness must not be anchored lower than 2” below driver’s shoulder height
37.9. Aluminum racing seat required, securely fastened to cage or frame
37.10. Head rest support behind seat required
37.11. Shoulder supports and head supports on right and left sides of seat recommended
37.12 Drivers compartment must be sealed off from engine compartment and fuel container
37.13 Access to driver from right side by emergency personnel required
38 ELIGIBILITY
38.3 Anyone 14 years of age or older may compete.
38.4 Management reserves the right to accept or deny eligibility to anyone.
39 GENERAL POLICY
39.1 Tampering with another car or in any proven theft or dishonest act will result in suspension & arrest.
39.2 Always stay in car with belts and helmet on.
39.3 One driver per night. Only one person may hot lap and race the car during the event.
39.4 Car must be clean of glass and loose debris.
39.5 Illegal parts will be confiscated.
39.6 Bandits must have working scanner/ Raceceiver/Solo
40 NUMBERS & APPEARANCE
40.1 A number at least 18" or more in height must appear on both sides in a contrasting color.
40.2 Cars must display roof top numbers 24" high, readable from the left side
40.3 Car number of at least 4" must be displayed on right side (passenger side) windshield.
40.4 Number at least 4" must be displayed on rear of car.
40.5 Can’t be seen, can’t be scored.
41 TYPES OF RACING EVENTS
41.1 At the discretion of the Management, races may be added to allow everyone to get the most bang for their buck, this will be determined on car count and time
41.2 Management may, at their discretion, alter direction, length and procedure of certain racing events
42 MANAGEMENT CLAIM RULE
There is no Claim Rule at this time.
43 “BREAKOUT” rule
Breakout rule may be put in place at Official’s discretion.

At this time no points to be awarded in 4 race trial (subject to change)
Points Feature
1st place 25 points
2nd place 18 points
3rd place 15 points
4th place 12 points
5th place 10 points
6th place 8 points
7th place 6 points
8th place 4 points
9th place 2 points
10th-Below 1 point
Heat Points
1st place 10 points
2nd place 8 points
3rd place 6 points
4th place 5 points
5th place 4 points
6th place 3 points
7th place 2 points
8th place and below 1 point

Trophy Dash Points
1st place 6 points
2nd place 5 points
3rd place 4 points
4th place 3 points
5th place 2 points
6th and below 1 point

Bonus Points
Fast qualifier 5 points