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Rules
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Printer Friendly 2008 360 Modified Rules
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Hancock County Speedway 2008
2008 - 360 Modified Rules
Revised February 7, 2008
Amendments to rules may be done as necessary.
(***) May be used in 2008, Not
required)
TRACK OFFICALS DECISIONS ARE FINAL
AMENDMENTS TO THE RULES FOR 2008 HAVE BEEN UNDERLINED
The Tech Departments understanding is: This is an
entry level class all replacement parts must be as used on an OEM Vehicle as a
Stock replacement part, Built to factory specifications by a major automotive
supplier. Intended solely for Street use and mounted in the factory stock mounts
and locations. Engines may be machined to maximum OEM specifications as an
automotive rebuilder would use to make a reliable street engine. IE factory
Service specifications. All of above shall be applicable to all parts on the
car unless otherwise noted below. Amendments to these rules may be made at
anytime. Decisions of the officials shall be final.
Items not allowed in A-Mod Class will also
be disallowed in the B-Mod Class.
SAFETY EQUIPMENT:
1. Helmets are required and must be
SA90, SA95, or SA2000 full coverage and should be worn at all times when the car
in on the track. Helmet must accompany vehicle at time of inspection. Fire suit
of a flame-retardant nature must be worn. Two piece fire suits allowed. Neck
braces and fire resistant gloves are required. Racing shoes are required.
Window nets are required. Must be mounted to the roll cage top and bottom. Hans
or Hutchins device allowed with out neck brace.
2. 5-point safety belts, sub belts, shoulder harness required. No Y type
shoulder harness. No factory type belts or straps should be used.
Metal to metal buckles are required on shoulder and seat belts. The shoulder
harness recommended not being more than one year old.
3. Sun shades must not be made of metal or
plastic on the sides of the roll cage (Duct Tape only). Front sun visor must be
metal only.
KILL SWITCH:
1.Kill switch required within easy reach of driver and clearly marked "ON"
and "OFF".
FRAMES AND BODIES:
1.Any legal WISSOTA or IMCA type frame
allowed. Body Must match A-mod diagram. Escape Hatch above driver is allowed
and is required if you can not get out of pass window due to seat head
restraints or your physical size. Aluminum roof OK.
2. Frames may not be widened or narrowed and must be able to support
roll cage on both sides. Front cross member may be notched for radiator
clearance only. Minimum frame and body height from ground is 4 inches.
(Exception is front cross Members.)
3. Front suspension and steering must be unaltered OEM and be in stock
location. Must remain within original bolt pattern from type of frame used. In
cockpit, steering may be modified to suit driver’s taste, but must be kept on
left side. No center steering allowed. No rack and pinion allowed. Stock
passenger car spindles only. No fabricated spindles allowed.
4. Tube-type upper A-frames allowed and can be moved.
5. No coil-over shocks allowed either front or rear. No homemade coil-overs can
be used anywhere on car.
6. No jeep, Bronco, (etc) or 4-wheel drive frames allowed. No sport car or front
wheel drives allowed.
7. 1 shock per wheel only.
8. Minimum wheelbase – 108 inches – on both sides. No tolerance.
9. No spoilers, spoiler braces, nose wings engine covers allowed.
BUMPERS:
1. Bumpers should be on both front and rear. Front bumper should be mounted
frame end to frame end with the bottom loop parallel to the ground and 6.5"
apart from the top loop. Should be made of minimum of 1 ¼" tubing and
must be able to support car if lifted by wrecker.
2. Rear bumper and body must not extend beyond width of rear
tires.
3. Nerf bars must not extend beyond width of rear tires and must not contain any
sharp edges. Open tubes must be capped.
4. Rear bumper may be constructed of tubing or flat stock, and must protect fuel
cell. Center of bumper, front and rear, must be 18" from ground. (2"
tolerance). No wider than 5" past the rear frame rails. Open tubes must be
capped.
ROLL CAGES:
1. Must consist of continuous hoops not less then 1.666 inch diameter and
must have a wall thickness of at least .095.
2. Must be frame-mounted in at least 6 places. Roll bar padding required in
driver compartment.
3. Must consist of a configuration of front to rear hoops connected by tubing on
the sides or side hoops. Driver’s head should not protrude above the cage with
helmet on and strapped in driver’s seat. Roll cage must be securely supported
and braced.
4. Low carbon, mild steel tubing is recommended. No brazing or soldering
allowed.
5. Protection of feet is mandatory. Bar across back of engines with vertical
bars and rub rails, or similar protection.
6. No brace bars forward of cage may be higher than stock put height.
7. A minimum of 3 driver side door bars must be parallel with the ground as
possible and located perpendicular to the driver so as to provide maximum
protection for driver, but without causing undue difficulty in getting in or out
of the vehicle. The sidebars must be welded to the front and rear of the roll
cage members. No brazing or soldering allowed. Door bars less than .095
thickness should have 4 bars at least 1-½ inches in diameter. Driver doorplates
required (5" in front of seat to rear of seat).
BRAKES
1.Brakes must be operated on all 4 wheels and must lock up all 4 wheels during
inspection. Brake pedal balance bar only adjusting device allowed on car. No
Rear Axle Brake Floater Allowed, Caliper brackets must be solid mounted to the
rear-end housing. No pressure limiting or check valves allowed. All frt. brake
rotors subject to OEM minimum thickness. Rear rotors .810 minimum thickness
FUEL:
1. GASOLINE ONLY. Pump Gas.
2. Fuel cell vent hose must extend to within 2" from bottom of cell and be
securely fastened!
3. Fuel Shut Off Handle in driver’s compartment recommended.
BATTERY:
1.One 12volt battery must be securely mounted and shielded
inside frame rails. (Marine type battery box recommended). The (+) cable must be
covered.
LOOSE OBJECTS AND WEIGHTS:
1. Loose objects and/or weights must not be used in driver’s compartment or
outside of body or hood area. Any weights added to other areas of vehicle must
be securely mounted and should be painted white and have car number on it and
attached with at least two, ½ inch bolts.
TRANSMISSIONS:
1. OEM manual transmission (3 or 4 speed). Must use stock cases, bearing
plates and tail shaft housings for make and model trans being used. All 3 or 4
forward gears and 1 reverse gear must work. Stock clutch or mini clutch allowed.
Aluminum flywheel allowed. Must have Steel bell housing. Flywheel must bolt to
crankshaft. Clutch must bolt to flywheel. All must rotate with engine running.
Clutch operation: Must release pedal to move.
2. OEM automatic with a coupler. Must use a hand or clutch pedal valve for
neutral. Bump starts allowed. Must use flywheel shield. All forward and reverse
gears must be operational at time of inspection. 153tooth OEM type Flex plate
min. No Spoke Flex Plates allowed.
DRIVE SHAFT:
1. Drive shaft hoop is required and must be constructed of at least ¼" by 2"
steel and should be mounted at least 6" back from front of drive shaft. Drive
shaft must be painted white. 2"minimum diameter steel shaft.
WEIGHT LIMIT:
1.2500 lbs all 360 Modifieds. Weights Rule maybe evaluated and
adjusted at anytime.
COMPUTERS and TRANSMITTING DEVICES:
1. No computers or transmitting or listening devices in car.
REAR ENDS and REAR SUSPENSION
1. Any passenger car type or truck rear end may be used. Floater recommended
2" inspection plug recommended to view Spool and/or gear. Carrier may
need to be removed if we cannot see what needs to be inspected.
2. No quick-change devices allowed. No cambered rear ends allowed.
3. No limited slip devices allowed. May run full spool, mini spool, or welded
rear only. All Components Must be Steel. No lightened or light weight
components allowed.
4. 72" between back of block and centerline of rear end.
5. Notice Due to advances in technology non-stock 4 bar and Z link
suspensions are not allowed. Also both lower control arms must be the same
length +/- 1 inch. Lower control arms must not run at an angle of more than 25
degrees up angle. Measured after the race with driver in the car
6. Minimum Panhard bar length 19" center to center of bolt holes..
7. One pull bar or lift arm only.
8. No Adjustable, Remote reservoir or Coil over Shocks Allowed. (Steel
components only).
WHEELS AND TIRES:
1.No aluminum wheels, hubs, calipers or A-frames or any other suspension
parts allowed. Plastic wheels are not allowed. Calipers cannot be lightened and
must be OEM. Rotors cannot be lightened or drilled.
2. Rims – (8") width maximum. Bead locks on right rear only.
3. Tires – McCreary 0r Hoosier G-60 only. Tires must match tire on same axle.
Tires will be the widest part of the car at all times No exceptions I.E. If your
rear end moves ahead door must be cut out for clearance not bent out for tire to
move inside.
4. Mud Plugs allowed right rear outer only.
ENGINE, CARBURETOR & IGNITION (No removal of Casting, Stamping, or
ID numbers)
A. Engine Block- OEM cast iron only, all modifications to
factory service specs only. OEM bore and stroke combinations only, Lifter
bores may not be altered. Maximum 361ci (GM), 363ci (Ford), 368ci (Chrysler).
Due to the many possible combinations of bore and stroke you may be asked to
remove a head at the track for measurement. Gaskets will be at your expense.
Subject to fine and loss of track points if found illegal. May run
IMCA Crate Motors, but MUST run 6200 Chip
B. Crankshaft- Must have a stock appearing rear crank flange.
Balancing OK, No lightening, knife edging or reducing of the crankshaft
circumference. It is recommended that you have a (2") inspection hole
above oil level in Oil Pan or you will have to drop Pan for inspection. Ford and
Chrysler will require pan removal to verify crankshaft
C. Harmonic Balancer- Must be of OEM design with rubber mounted
dampener ring
D. Connecting Rods- Must be of OEM design (IE If stock rod was
"I-beam than Aftermarket must be "I-beam) It is also required the aftermarket
rods weight the same or more than OEM. Rod length is up to engine builder (does
not have to be OEM length). Rods may use bolt and nut or cap screws to secure
the caps.
E. Pistons- Cast or Forged, Flat top or Dished. No domed or gas
ported pistons Allowed.
F. Camshaft- Solid Lifter or Hydraulic only, No Roller Camshafts
allowed. Valley tray OK (recommend cutting tray at rear most lifter so lifter
may be removed for inspection from the distributor hole).
G. Cylinder heads- must be unaltered approved OEM. All heads must
have been used in a production vehicle. No limited production or special purpose
over the counter only heads allowed. No porting, polishing or unapproved valve
bowl work or other alterations of any kind to heads or intake. Heads may be
reworked to accommodate the largest OEM valve size available in a production "on
highway" use vehicle. If cutting new valve seats the ring left below the seat
maybe removed with a carbide cutter in a head service machine only, one
cutter angle only no multiple cuts. (No die grinder work anywhere
no exceptions). Cylinder heads may use screw in studs and guide plates.***May
use Engine Quest (EQ) Stock Replacement (SR) cylinder head, part number CH350I,
head must remain as produced, valve sizes can not be changed. No porting,
polishing or unapproved alterations allowed to ANY cylinder head. Guide plates,
screw-in shouldered studs (0.375-inch max).
H. Valve Train- Stamped Steel or Stamped Steel
roller tip rocker arms. Cast Steel roller tip rocker arms also will be allowed
with Stock type pivot ball. Oil Deflectors allowed two bolts maximum.
I. Exhaust- 1. May use aftermarket headers. Exhaust system must be
mounted in such a way as to direct spent gases away from cockpit of vehicle and
away from areas of possible fuel spillage. Exhaust header outlets no higher than
midline of the body sides. Officials may require turn downs on the collectors.
Dual exhaust only no "Y" pipes or 180 headers. No oxygen sensors allowed.
J. Intake Manifold- Only stock Cast Iron unaltered 2- barrel or 4-
barrel (4 Holes) intake manifold is permitted. Porting, polishing, port
machining is not permitted. No Bowtie, VORTEC, SVO or W2, marine or other
special production intake manifolds. No intake manifold to cylinder head spacers
allowed.***Unaltered Weiand aluminum – ‘IMCA stamped’ Chevrolet #7547-1;
Ford 302, #7515; 351 Windsor #8023; 351 Cleveland #7516; Mopar #7545.
K. Carburetor-
1. Carburetor will be 2-barrel only, Holley #4412 or #80583 Dorton
equivalent 500cfm on any engine, otherwise Chevy-to-Chevy, Ford-to-Ford, etc.
No grinding or polishing of any kind allowed. All carburetor components
manufactured by Holley. No Aftermarket base plates, metering blocks or carb
bodies allowed. No milling or grinding of throttle shaft allowed, shaft must
stay round. The choke and air horn may be removed, this is the only
re-working allowed, must have stock measurements. Carb gauges will be used.
2. Steel, aluminum or Phenolic adapter plate or spacer allowed. Distance between
the bottom of carburetor and top of intake manifold cannot exceed 1 ¼
inch! Total spacer height
3. No top Flow air filters or air diverting air cleaner housings.
L. Fuel Pump- OEM style diaphragm pumps only.
M. Ignition System- OEM Stock appearing (all components)
Distributors only. Must run stock firing order.
N. Cooling system- Cooling system may be modified. Radiator and
oil cooler must not protrude above interior. No electric water pumps or cooling
fans. No sprinkler systems. Any overflow tubes are to be directed
to the ground, between frame rails.
O. Starter-All vehicles must have the capability of starting
without being pushed or pulled. Starter must bolt to engine in factory location.
P. Other We will allow IMCA Northern SportMods -
must be 100% IMCA legal, have IMCA license and hold track points at a sport mod
track.
ENGINES ARE RESTRICTED TO NINE TO ONE COMPRESSION IN ONE OF THE TWO
FOLLOWING METHODS-
9.0 to 1 compression ratio using Whistler. (Blue Box)
(or)
Cast iron heads only. OEM Production heads only. Flat top pistons only; GM cars
- approved steel head numbers are - 014, 195, 267, 330, 336, 339, 388, 393, 441,
445, 454, 487, 493, 545, 598, 624, 642, 709, 799, 813, 862, 881, 882, 920, 991,
993, 997; Ford cars, no after market or SVO heads; Chrysler cars, no after
market or W2 heads, 360 cubic inch heads only. Must be 76 cc heads or larger.
Other heads may be approved call FIRST!!
Engine claim and Engine protest rules printed in the track rules
DRIVER & SAME CAR CANNOT RUN IN THE 360
MODIFIED & REGULAR MODIFIED CLASS THE SAME NIGHT.
Tech Questions – Call Tim Weiland @ 641-843-4230 (Home) or 515-341-0042
Hancock County Speedway 2008
Hobby Stock Rules
Amendments to rules may be done as necessary
November
28, 2007
IMCA
Legal Hobby Stocks are also considered legal & are permitted to compete.
TRACK OFFICALS DECISIONS ARE FINAL
AMENDMENTS TO THE RULES FOR 2008
HAVE BEEN UNDERLINED
The Tech Departments understanding is: This is an
entry level class all replacement parts must be as used on an OEM Vehicle as a
Stock replacement part, Built to factory specifications by a major automotive
supplier. Intended solely for Street use and mounted in the factory stock mounts
and locations. Engines may be machined to maximum OEM specifications as an
automotive rebuilder would use to make a reliable street engine. IE factory
Service specifications. All of above shall be applicable to all parts on the
car unless otherwise noted below. Amendments to these rules may be made at
anytime. Decisions of the officials shall be final.
ROLL CAGE -
Must use .095 -inch tubing, at least 1.75-inch diameter for main cage and
door bars. No offset cages. Four-post roll cage must be used, front and rear
hoop welded to the OEM frame. Rear hoop must have "X" brace, consisting of one
horizontal and one diagonal bar, 1.25-inch O.D. and .083-inch wall thickness.
Front down-bars must be tied together. Must be minimum of 40 inches between
front and rear down bars at top of door panel. No more than 41 inches from top
center of windshield to front edge of rear hoop; no more than 13 inches to front
edge of front hoop and top halo must be no less than 40 inches across, outside
to outside. Must have minimum of one cross bar in top of halo. Required rear
kickers and engine hoop must be minimum 1.25-inch tubing, with .083-inch wall
thickness. Three horizontal door bars on both sides are mandatory. Minimum of
four uprights tied from frame to top door bar on driver side, three on passenger
side. May have two bars for protection in front of radiator, behind bumper,
within confines of body, no wider than stock frame horns. May tie front horns
together. All bars, front and rear, must be inside body. Steel doorplates,
18-gauge or .049-inch minimum thickness metal, must be securely welded to
outside of door bars on driver's side. Plate must cover the area from the top
door bar to the rocker panel and from the rear down post to five inches in front
of the seat. Must be visible for inspection. Absolutely no square tubing or
galvanized pipe allowed. Fuel cell protection bar may be used, mounted frame
rail to frame rail, no higher than the fuel cell and inside the trunk area.
Maximum 1.75-inch pipe.
SAFETY-
Five point safety belts, sub belt and shoulder harness required. No Y type
shoulder harness allowed. Belts must be mounted to cage. SFI approved
full fire suit, fire retardant neck brace and fire retardant gloves required,
racing shoes recommended. Hans or Hutchins device allowed with out neck brace.
Helmets are required and must be Snell SA90, SA95 or SA2000. Helmet must be worn
at all times car is on the track and must accompany vehicle at time of
inspection. Roll bar padding is required in driver compartment. Fire retardant
padding recommended. Full size (minimum 16-inch x 20-inch) window net required
(no string-type nets). Window net to be mounted so latch is at top front of
driver side window. Kill switch required within easy reach of driver and must be
clearly marked "OFF" and "ON". 360-degree drive shaft loop is required and must
be constructed of at least quarter-inch by two-inch steel, or one-inch tubing,
and should be mounted six inches back from front U-joint. All cars must have a
high-back aluminum-racing seat fastened to roll cage with minimum 3/8 inch
bolts, Driver's shoulders can be no further back than the front of the
window post ('B' pillar).
ELECTRONICS -
No transmitting or listening devices allowed in car. No electronic
monitoring computer devices capable of storing or transmitting information
except tach allowed on cars. No digital gauges allowed on car. No ignition
control boxes allowed, OEM ignition only. No electronic traction control devices
allowed. No alternators allowed.
FUEL -
Pump Gas or 10% Ethanol blend fuel only. Racing fuel cell required
no boat or stock automotive fuel tanks. Must be securely fastened, (above level
of stock trunk floor), by at least two 1/8-inch thick by 2"wide solid steel
straps, around entire cell. Metal firewall must be between driver and fuel cell.
All cell mounts must be steel, attached to frame/cage. No adjustable fuel cell
mounts. Fuel cell must be in a steel container Max 18 gauge. Fuel cell vents,
including cap vent, must have check valves. Fuel lines through driver
compartment must run through metal pipe or metal conduit. No fuel filters in
driver's compartment. No fuel pressure regulators or fuel return lines on the
car. Stock appearing fuel pump only. May run factory fuel pump
with factory return line at the pump.
BATTERY -
One 12-volt battery only must be in a marine-type case securely mounted
to frame or roll cage in a metal frame behind the seat or in trunk area. Max 18
gauge Battery Box.
TIRES & WHEELS -
Stock (OE) 205/75, or 205/70, 14-inch, or 15-inch passenger tires only.
All four tires and wheels on car must be same size. Tires must be inside body.
No mud, racing or fancy, exotic, trick gumball tires allowed. No softening,
conditioning, sipping or grooving allowed.
Must be D.O.T. stamped wheels with standard bead bump - must weigh a minimum of
21 pounds.
No racing wheels or mag wheels allowed. Spoke steel wheels allowed. Maximum
seven-inch wide steel wheel. Reinforcing of stock wheels recommended. One inch
steel lug nuts required. No wheel spacers allowed.
Vehicle Weight-
As we have no weight limit for the cars that race at our speedway it shall be a
judgment call on behalf of the tech officials if you have over done areas of you
car in order to gain rear percentage. IE solid bar tubing in rear of car, heavy
material bumper braces, heavier than needed replacement rear frame rails, etc.
If we deem necessary we will require you to add weight in the engine
compartment to offset the conditions found. All replacement frame tubing will
have 1/2'" holes drilled every 6"for inspection purposes.
FRAME -
Frame must match body. 109-inch wheelbase minimum for unibody cars, 107.5-inch
minimum for full frame cars - no more than one inch difference from side to
side.
Frames may be "X" braced. Rear of frame behind rear tires, from a point no
further forward than one inch behind the factory seam, may be replaced in stock
location with two-inch by three-inch steel tubing with .095-inch wall thickness.
All replaced rails must have inspection holes in the tubing.
Factory seam must remain visible. Must replace the same length material removed.
Unibodies must be tied - rear frame to front frame. No station wagons,
convertibles, front-wheel drive, four-wheel drive or rear engines. Bumpers must
be in stock location.
Front and rear bumpers must be capped to fender the width of the bumper. No
reinforcement of bumpers. Bumper may use 1 3/4" x .095 wall round or square
tubing to mount bumper to car.
This along with good fender caps and safety cables will keep bumper on the car
with out adding extra weight.
All Bumpers must run 2 safety cables from bumper to frame. Bumper
caps must be made of 18 gauge metal with 1/4 inch bolts, (No Rivets.)
Inner bumper brace must have inspection holes drilled in them.
SUSPENSION & STEERING -
Must be original type suspension and steering and match the frame. No rear
independent suspension allowed. Steel springs only. No add-on quick steer boxes.
No remote reservoirs on power steering pumps. All shocks must be steel non
adjustable with OEM mounts. All shocks must mount in the stock location
(top and Bottom). Driver cannot claim shocks and engine in the same event. No
spacers, lumber, chains or cables allowed.
BRAKES -
Master cylinder must be in stock location. Approved OEM brakes on all four
wheels must work. No OEM Antilock Brake Systems. No rear wheel disc brakes.
All drums and rotors may not be machined or worn past the factory minimum
thickness or maximum diameter. No after market brake pedal assemblies
allowed. No brake shut-off or bias allowed. No Brake pressure valves of any kind
on the car.
BODY -
1960 or newer American made stock passenger automobile with factory steel top.
No Camaros, Firebirds or Mustangs. Sunroofs and T-tops must be reinforced and
enclosed. All bodies must be approved OEM (and be mounted as factory)
IE Doors must meet the rocker panels Roof must have factory rack. After
market plastic nosepieces allowed. No aftermarket tailpieces, spoilers, wings,
skirts (If skirts are necessary than no lower than stock frame rails),
air scoops or anything that alters the stock appearance. No aluminum hoods. Hood
must be separate from fenders - no one-piece or tilt front ends. No gutting of
hoods or trunks. No cutting out kick panels. All hoods and trunks must be
securely fastened and the back of hood must be sealed off from driver's
compartment with metal. Steel rub rails no bigger than one inch by two inches
may be attached to body from fender well to fender well, flush with body May
also use the Lexan rub rails. Maximum seven-inch metal sun visor (measured
anywhere) may be added to top of windshield opening only. All sharp edges,
torn fenders and body panels to be repaired prior to next race. Must have a
minimum of three windshield bars in front of driver. No ballast allowed. All
glass, plastic, upholstery, rear seat, lights, mirrors, and chrome removed. Dash
is not to extend more than 24 inches back from center of lower windshield
opening. Dash must be flat except for cowl in front of driver. No other interior
tin or covers. All doors must be secured shut (welded, chained, bolted, no
rivets) the front inner wheel wells may be removed, but not the rear wheel
wells. Must have bumper caps as wide as bumper and must be bolted or welded to
body and bumper, minimum 18-gauge metal, aluminum or steel, no sharp edges. All
window openings to remain open. If you have a home made nosepiece it must go
straight up and down and must be bolted behind bumper.
DRIVE TRAIN -
Unaltered OEM, Manual Transmission, with all forward and reverse
gears operational. (I.E. 4 speed transmissions must have 4 forward and 1 reverse
gears). Or an OEM automatic transmission, with original bell housing and
functional torque converter containing a minimum of three quarts of fluid, or
approved OEM (10.5" or larger) single organic
disc-type clutch, solid center organic clutch disc OK inside an
explosion-proof steel bell housing on manual transmission only. No button
clutches.
All bell housings must have a 2 x 3 inch removable inspection hole directly
below the clutch and flywheel for inspection purposes or bell housing may need
to be removed for inspection. No aluminum or lightened flywheels. Manual
transmission Flywheels must weigh at least 16 lbs. Automatic must
have an approved scatter shield (may be constructed of quarter-inch by
three-inch steel, 270 degrees around flex plate or flywheel. Torque converter
must have a minimum 1/8-inch plug. No truck rear ends allowed. Steel axles only.
Nine-inch Ford rear end allowed, but must be mounted like stock rear end for
that make and model. Minimum 2.5-inch diameter steel drive shaft
must be painted white. Drive shaft centered in car tunnel. Rear end may be
welded or mini spool, no full spools. No Light Weight Ring Gears.
No floater rear ends. Rear suspension must match frame. No electronic or
mechanical traction control devices allowed
NUMBERS -
All cars must be numbered with large, legible numbers on sides, top and rear
panel. Numbers must be in contrasting color from body, in all light conditions.
Numbers on side of car to be at least 4 inches thick and 20 inches high.
Numbers on top must be at least 4 inches thick and 30 inches high.
ENGINE, CARBURETOR & IGNITION
A. Engine Block- OEM cast iron only, all modifications to factory
service specs only. OEM bore and stroke combinations only, Lifter bores may
not be altered. Maximum 361ci (GM), 363ci (Ford), 368ci (Chrysler). Due to the
many possible combinations of bore and stroke you may be asked to remove a head
at the track for measurement. Gaskets will be at your expense. Subject to fine
and loss of track points if found illegal.
B. Crankshaft- Must have a stock appearing rear crank flange.
Balancing OK, No lightening, knife edging or reducing of the crankshaft
circumference. It is recommended that you have a (2") inspection hole
above oil level in Oil Pan or you will have to drop Pan for inspection. Ford and
Chrysler will require pan removal to verify crankshaft
C. Harmonic Balancer- Must be of OEM design with rubber mounted
dampener ring
D. Connecting Rods- Must be of OEM design (IE If stock rod was
"I-beam than Aftermarket must be "I-beam) It is also required the aftermarket
rods weight the same or more than OEM. Rod length is up to engine builder (does
not have to be OEM length). Rods may use bolt and nut or cap screws to secure
the caps.
E. Pistons- Cast or Forged, Flat top or Dished. No domed or gas
ported pistons Allowed.
F. Camshaft- Solid Lifter or Hydraulic only, No Roller Camshafts
allowed. Valley tray OK (recommend cutting tray at rear most lifter so lifter
may be removed for inspection from the distributor hole).
G. Cylinder heads- must be unaltered approved OEM. All heads must
have been used in a production vehicle. No limited production or special purpose
over the counter only heads allowed. No porting, polishing or unapproved valve
bowl work or other alterations of any kind to heads or intake. Heads may be
reworked to accommodate the largest OEM valve size available in a production "on
highway" use vehicle. If cutting new valve seats the ring left below the seat
maybe removed with a carbide cutter in a head service machine only, one
cutter angle only no multiple cuts. (No die grinder work anywhere
no exceptions). Cylinder heads may use screw in studs and must have stock
diameter single valve springs. No Bee hive valve springs allowed.
H. Valve Train- No full roller or roller tip rocker arms. No guide
plates allowed. No stud girdles. Oil Deflectors allowed two bolts maximum.
I. Exhaust Manifolds- OEM cast iron exhaust manifolds only. No
center dump or tubular steel manifolds allowed. Exhaust pipes must extend past
firewall. Must remain dual exhaust, no crossover or ‘Y’ pipes allowed. No oxygen
sensors allowed.
J. Intake Manifold- OEM cast iron two-barrel intake only. No
aluminum intakes allowed.
K. Carburetor- All cars must run a stock two-barrel carburetor, no
Holley. (GM venture 1.375", base 1.690", aluminum booster .250"). May remove
choke, but no other alterations allowed. Conventional air cleaner housings only.
No top flow air cleaner housings, cold air boxes or air cleaner ductwork
allowed. No Carb spacers allowed. Hot air deflectors may be up and down
between radiator and engine.
L. Fuel Pump- OEM style diaphragm pumps only. No fuel pressure
regulators or electric pumps allowed.
M. Ignition System- OEM Stock appearing (all components)
Distributors only. Must run stock firing order.
N. Cooling system-Minimum two-core approved steel or aluminum
radiator. OEM steel or aluminum water pumps only. Steel or aluminum pulleys
allowed. No serpentine belts allowed. Any overflow tubes are to be directed to
the ground, between frame rails.
O. Starter-OEM starter must bolt in stock location.
P. Accessories- Stock steel accessory brackets only. OEM
accessories and brackets only. Accumulators and Accusumps must be mounted under
the hood.
ENGINES ARE RESTRICTED TO NINE TO ONE
COMPRESSION IN ONE OF THE TWO FOLLOWING METHODS-9.0
to 1 compression ratio using Whistler. (Blue Box)
(or)
Cast iron heads only. OEM Production heads only. Flat top pistons only; GM cars
- approved steel head numbers are - 014, 195, 267, 330, 336, 339, 388, 393, 441,
445, 454, 487, 493, 545, 598, 624, 642, 709, 799, 813, 862, 881, 882, 920, 991,
993, 997; Ford cars, no after market or SVO heads; Chrysler cars, no after
market or W2 heads, 360 cubic inch heads only. Must be 76 cc heads or larger.
Other heads may be approved call FIRST!!
Claim Rules and Protest Rules are printed in the Track
Rules TECH QUESTIONS - Contact
TIM WEILAND 641-843-4230
(Home) or 515-341-0042
Hancock County Speedway
2008
Cruiser Rules
AMENDMENTS TO THESE RULES MAY BE MADE IF NECESSARY
TRACK OFFICIALS DECISIONS ARE FINAL.
Drivers or Mechanics may
be 12 years or older, but MUST BE ACCOMPANIED BY AN ADULT 18 YRS OR OLDER as
the other team member.
Both team members cannot
be under 18 yrs of age.
All minor drivers MUST
complete age verification and parental authorization forms prior to competing.
Forms MUST be signed by both parents.
NO EXCEPTIONS
1. Car must be stock. Only
interior gutting allowed is for the door bars all other metal required. OEM
parts only. This includes bumpers.
No gutting hoods and trunks.
2. Remove all exterior trim and moldings.
3. Remove all glass, including all glass in car door panels or you will not
race.
4. Remove all flammable materials.
5. All doors must be chained or welded shut.
6. Gas tank must be secured in trunk or stock position. If tank is relocated it
must have two (2) 2” x 1/8” straps all the way around.
7. 7” stock DOT tires, 7” steel spoke wheel
OK. NO SNOW TIRES. All 4 tires must be 14" or 15". No LT tires.
Tires in front must match each other & tires in back must match each other. No
offset rims.
8. 112” minimum wheelbase. 4 door sedans only. NO CHEVY'S OR CHEVY
MOTORS.
9. The gas pedal must be in the riding mechanic side only. Must be out of reach
of driver.
10. Mandatory 5-point safety belts, fire retardant driving suits, neck braces,
driving gloves and window nets.
11. Aluminum racing seats are required.
12. You must have a riding mechanic or co-pilot
13. Helmets must have a SA or M rating. No snowmobile or bicycle helmets.
14. MANDATORY 4-point roll cage with rear brace bars to frame and 3 door bars on
both sides
Minimum 13/4” - 095 tubing.
15. Drivers & mechanics in the Cruiser car cannot be racing in any class but
Cruiser that night.
16. HOLES IN FIREWALL MUST BE COVERED!!!
17. Rub rails OK, between wheels only. Must be bolted and WELDED -
1” thickness maximum – 12” width maximum. No grader blades.
18. A MINIMUM OF 3 WINDSHIELD BARS IN FRONT OF EACH DRIVER OR CO-PILOT. (3/8”
MINIMUM)
19. No front hoop or bars in front of radiator. Factory radiator supports only.
20. If gas tank is moved to the trunk, rear firewall is required.
(Must run brown/gold colored 10% ethanol blend unleaded pump gas only. The
cheap stuff, Available everywhere.)
No additives -
Will work fine in those low compression engines.
21. NO LOCKED REAR ENDS ALLOWED.
Open rear-ends only, no lockers, no limited slip, no governor style diffs, or
any device that will lock rear-end at any time.
22. All cars must be numbered with large, legible numbers on sides, top and rear
panel.
Numbers must be in contrasting color from body in all light conditions.
Numbers on side of car to be at least 4 inches thick and 20 inches high.
Numbers on top must be at least 4 inches thick and 30 inches high.
23. No wheel weights allowed must be removed.
24. ALL VEHICLES WILL RUN WITH 1 PLUG GROUNDED AND BROKE OFF.
SPARK PLUG MUST BE BROKEN OFF FLUSH!! Must have stock gap on the inside.
All engines must have hydraulic lifters and idle down to 600rpm in gear
after the feature and stay running.
All engines must hold 15 inches of Vacuum at 1000 rpm running on all 8 cyl in
neutral.
25. Must have bumper caps as wide as bumper. Must be bolted or welded to
body and bumper.
Minimum 18 gauge metal, aluminum or steel.
No sharp edges.
26.
Any profanity on cars will result in loss
of points and pay for the night.
27.
Flagrant rough driving will be black flagged for that race.
28.
Points stay with original Driver & Mechanic - NOT with car # .
29.
Cruisers go green, white, checkered. Red flag will be thrown for rollovers or
fire.
30. If car becomes stranded during the race drivers must
remain in the car and the safety
equipment must remain on.
31. All cars must add a (18 gauge) restrictor plate with two 1 1/4" holes.
On manifold will be gasket, restrictor plate, gasket, Carb spacer 1" max height,
gasket, Stock two or four barrel carb.
Any Questions ASK! All Cars showing up with out plate will be allowed to run
with two plug wires off for (1 night only).
32. Claim Rules are printed in the Track Rules.
TECH QUESTIONS
- E-MAIL
TIM WEILAND
TRACK TECH INSPECTOR
TIM WEILAND – 641-843-4230
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