Hawkeye Downs Speedway 2008 Sportsmen Rules
Chief Tech Inspector: Don Burkey (319) 929-6979 or
(319) 472-5081 Tech Inspector: Dan
Higdon (319) 472-5129
Competition Director: Chris Stocks (319) 365-8656
YOU
ARE EXPECTED TO KNOW THE RULES. IGNORANCE IS NOT AN EXCUSE!
The rules and/or
regulations set forth herein are designed to provide for the orderly conduct of
racing events and to establish minimum acceptable requirements for such
events. These rules shall govern the
condition of all events, and by participating in these events, all participants
are deemed to have complied with these rules.
NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM
PUBLICATIONS OF, OR COMPLIANCE WITH, THESE RULES AND/OR REGULATIONS. They are intended as a guide for conduct
of the sport and are in no way a guarantee against injury or death to a
participant, spectator, or official.
The Race Director
and Track Officials shall be empowered to permit reasonable and appropriate
deviation from any of the specifications herein or impose any further
restrictions that in their opinion do not alter the minimum acceptable
requirements. NO EXPRESSED OR IMPLIED
WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICIATIONS. Any interpretation or deviation of these
rules is left to the discretion of the officials. Their decision is final.
The rules set forth shall be effective for
Hawkeye Downs Speedway’s 2008 racing season.
Management reserves the right to amend, alter, suspend, delete, or
supplement these rules as conditions warrant and without any prior notice. Any changes will be posted in the inspection
area. It is your responsibility to be
aware of changes posted. These rules
shall govern the condition of all Hawkeye Downs Speedway events. Auto racing is a competitive sport, and like
any other sporting event that depends on fan support, there is a great deal of
showmanship and public relations required.
Starting on time, running events in a professional manner, proper uniforms
or attire, race cars brightly painted and the conduct of the competitors both
on and off the track must be established.
Hawkeye Downs Speedway is private
property. Any person on this property
without the permission of the owners or management is guilty of trespassing and
subject to the penalties prescribed by law.
Through your registration you have been given the authority and the
right to be on this property in conjunction with your racing activity
only. However, the management of the
race track reserves the right to revoke and cancel this authority at any time
it is felt that your presence or conduct is not in the best interest of auto
racing, your fellow competitors, the fans, management, or employees of Hawkeye Downs
Speedway.
ALTHOUGH
EVERY EFFORT HAS BEEN DIRECTED TOWARD COMPLETE, UNDERSTANDABLE,
AND
CORRECT RULES, AS WELL AS THE SAME FACTORS IN PUTTING THEM INTO PRINT,
HAWKEYE
DOWNS
EVERY SITUATION,
CIRCUMSTANCE, OR INTERPRETATION.
THE DEFINITION OF STOCK:
NO MODIFICATIONS TO FACTORY PARTS OR FACTORY SPECIFICATIONS
Hawkeye Downs Speedway reserves the right to
inspect, "tech," or “tear down”
any competing car at any time, regardless of
finishing position.
GENERAL SAFETY RULES FOR DRIVERS
1. Snell
SA 95 or SA2000 helmet required and must be worn at all times car is on the
track.
2. SFI
approved full fire suit, fire retardant gloves, fire retardant shoes, fire
retardant socks and fire retardant neck
brace required
3. Head
and neck restraints strongly recommended.
Flame retardant Head Sock and Undergarments recommended.
4. Driver’s
eye protection mandatory. Full Face
Helmets or Goggles Mandatory.
5. Five
point safety belts, sub belt, shoulder harness required. Belt and shoulder harness must be mounted
securely to roll cage.
TRUCKS
1. Must
run a 4412 2-barrel and 8 inch rims and tires. Minimum weight 3,000 at any time
with driver. Call Hawkeye Downs.
ENGINES
1. Competitors
may use engines built to Hawkeye Downs rules, Mid American rules, or GM crate engines (88958603 or 88958602)
WEIGHTS AND MEASUREMENTS
1. All
weights and measurements taken with Driver in Driver's Seat, Wearing Helmet,
Hands on Steering Wheel, determined by track scale only.
2. Minimum
weight for cars or trucks using Hawkeye Downs Engine, Mid American Engine,
or
GM "Limited Late Model" Crate Engine 88958603 is 2975 pounds (As
determined by Track Scale only).
3. Minimum
weight for cars or trucks using GM "Factory Stock" Crate Engine
88958602 is 2900 lbs (As determined by Track Scale only).
3. Maximum
Left Side Weight 58 percent.
4. All
weight must be securely welded or bolted to frame or roll cage and identified
with car number. Must meet ground
clearance minimum.
5. Do
not mount weight on firewall, fuel cell, battery mounts, floor pan, or within
driver's compartment.
6. $200
Fine for loss of added weight (ballast) on track.
2007 HAWKEYE DOWNS
CHASSIS/FRAME (See Diagram on Last Page)
1. 1978-1988
GM Metric Frame Only. Minimum Wheelbase 107 inches Measured from centerline of
Front Wheel to Centerline of Rear Wheel
2. Maximum
track width, front and rear, is 62 inches, measured at hub height, inside wheel
to outside wheel.
3. Frames
must be cross braced or X-ed through center. Frames must be plated on inside of
frame rails
4. Rear
Tail Section may be replaced from center of spring pocket to rear.
5. Stock
Upper Spring Pocket may be removed. No
alterations allowed to the rear mid-plate.
6. Front cross member
may be notched for fuel and power steering pump and oil filter.
7. Minimum fuel pump clearance 1 inch.
8. Top half of cross member may be
collapsed 3/4 inch for oil pan clearance.
9. Rear upper control arm mounting
shelf may be raised a maximum of 1 inch without other alteration.
10. All
other areas of stock frame may not be altered or changed from the original
manufactured design or size.
11. No
frame lightening, such as drilled holes, acid dripping, etc.
12 Outer spring skirt
may be trimmed maximum of 2 1/2 in. up and 7 in. long to aid spring changes and
for minimal shock clearance.
13. Minimum
6 inches frame height except front cross member.
14. Tow
hooks attached to frame rails mandatory front & rear, within easy reach of
safety crew.
SUSPENSION
1. All
A-Frame, Trailing Arms, Steering Components and Suspension Mountings must
remain stock for frame in factory frame position.
2. Front
upper control arms may be replaced with tubular drop-in replacement 1 piece
control arms of stock length in stock location (+/- 1/2 in).
3. Front suspension
upper A-arm pad may be moved on the frame but must remain stock appearing,
uncut and otherwise unaltered.
4. No aftermarket or Dropped Spindles.
5. No
lightening of Suspension or Brake parts (such as drilled rotors, etc.).
6. Shocks
may be moved from stock location.
7. One
Shock per Wheel. No Schrader
Valves.
8. No
Aluminum Body or Coil Over Shocks Allowed.
9. Shock
must be track approved and retail for less than $100 each.
10. Stock
or Racing Springs allowed. 5 inches
minimum diameter Coil Spring.
11. Weight
Jacks or Screw Jacks allowed. No Driver
Adjustable Weight.
12. Stock
Upper A-Frames may be notched for Screw Jack clearance only.
13. No
Steel Offset Bushings in front or rear Suspension. May use Offset Shaft or Bushings in Upper
A-Arms Only.
14. Ball
joints must be used. Rod Ends or Mono Balls may be used on front and rear
suspension.
15. Any
OEM type Sway Bar permitted. Adjustable
aftermarket Sway Bar Mount allowed.
16. Racing
type, machine manufactured Hub and Rotor package recommended for safety. Right
Front Hub must be approved racing Safety Hub.
17. Front
and Rear Full Faced Steel Hubs only. No Aluminum Hubs
STEERING
1. OEM
Steering Boxes and linkage.
2. Aftermarket
steel tie rod sleeves allowed.
3. No
Rack and Pinion steering. No Quick Steer devices
4. Quick
Release Steering Wheel required. Safety
Padding in center of Steering Wheel required. Impact Collar on Steering Shaft
required.
5. Aftermarket
Steering Shaft must have safety sleeve.
6. After
market pulleys or remote reservoirs okay.
7.
No heim joints except for outer tie
rod ends.
APPEARANCE
1. All
cars will be required to display a package of sponsor decals supplied by
2. All cars must be neat appearing with good
paint job. Must have headlight replica
decals. Tail light replica decals
suggested.
3. A number of at least 16 inches or more in
height must appear on both doors, or rear quarterpanels, in contrasting color
(see General Rules).
4. Cars must display roof top numbers of 24
inches high, readable from the right side. 3 Digit Numbers must be approved by
management, as well as possible
duplicate numbers.
5. Must have Driver's Last Name at least 4
inches tall directly under Car Number on Doors and Roof/Quarterpanels (See
General Rules)
6. Must have car number on right front
passenger side headlight and on one rear taillight.
7 Minimum race weight must be printed on upper
front corner of drivers door.
2007 HAWKEYE DOWNS
BODY
RULES
1. 1990 through 2005
2. 5 Star "Sportsman," 5 Star
"Mid American," 5 Star "ASA," or Stock Sheet Metal
only. Aluminum Door Panels OK.
3. All cars must have
complete bodies, fenders, and trunks in stock configuration for the model and
year (within one inch of stock).
4. Outer wheel wells may be enlarged only for
tire clearance. Side panels may not be
pulled out further than 1 inch from stock.
5. Fabricated panels must retain stock
appearance and dimensions. No unapproved aluminum, plastic, or rubber panels or
parts
6. Pin type hood and trunk fasteners
only. No chained or bolted hoods or
trunks.
7. Hood must seal at Windshield area. Front of the Cowl must seal to back of the
hood when hood is closed.
2 1/2 in.X 20 in. "ASA type"
Hood Opening allowed. Hood must be flat
or near flat. No bubbled or pushed up
center of hood.
8. Minimum roof height: 51 inches.
9. Body, frame, ballast, fuel cell, etc.
behind rear tires minimum 11 inches off ground.
10. Body side panels and nose minimum ride
height: 5 inches.
10. Maximum
5 inch X 60 inches spoiler may be mounted on trunk lid only. Single plane only. Spoiler must follow contour of body.
No verticals, no sideboards, no lips, no
wraparounds.
11. Bars, plates, or pipes may not be welded or
attached to the outside of any part of the body, except a 1 in. x 1 in rub rail
touching the body
the entire length from wheel well to
wheel well. Rub Rail must be painted the
same as its background.
12. Front
Bumper must be in stock location.
13. Nose piece shall be
stock in appearance and dimension. Must
be installed at stock angles.
14. Rear
end of the car must be completely sealed, including area for taillights. Rear bumper must be stock or molded rubber or
fiberglass.
WINDOWS/OPENINGS
AND WINDSHIELDS
1. Clear glass or lexan windshield and rear
window required. All other glass must be
removed. No Tinted Windshield or Rear Window
2. Length,
size, pillars, and area of windshield and all windows must be stock size, angle,
and configuration.
3. Minimum windshield angle 27 degrees or Five
Star specifications for Five Star aftermarket body.
4. Side window opening, measured from
"B" pillar forward, must be minimum of 31 inches.
5. "B" pillar wings must be
perpendicular to or angled back from pillar inward.
6. Windshield opening must have three upright
braces. Rear window opening must have
two upright braces (3/8 inch steel minimum).
7. Window
nets are required and used at all times.
Quick Release or Latch Style Mounting must be used and must release from
top.
Window
net must be full size ribbon or mesh type.
Window nets must be attached to roll bars only.
INTERIORS
1.
Interior sheet metal must rise on a
plane from the drive shaft tunnel to passenger window opening.
2. Aluminum High Back Seats only. Must be bolted to frame and roll cage.
3. No ‘boxed in,’
'shelved,' or ‘tunneled’ driver compartments.
4. No plastic or composite material
may be used inside the driver’s compartment.
5. The driver’s compartment must be fully
enclosed around the driver.
6. Stock floor pan (plated) allowed.
7. No fuel lines passing through interior.
8. All
cars must have an approved fire extinguisher with its equipment within ready
reach for any emergency. (See General Rules).
9. All
cars must have master kill switch, located behind driver. Switch must be wired through negative side of
battery.
10. Drivers must monitor VHF Frequency
151.625. No two way radios.
ROLL CAGE (See Diagram on Last Page)
1. All cars must have full 4-point, perimeter
Roll Cage, Constructed with minimum 1 3/4 inches X .095 inches wall round DOM
or EW Steel Tubing
2. Main Hoop behind driver must be X-ed or
cross-braced and securely welded to the frame on both sides.
3. No Laid Back or Offset Roll Cages
4. Roof Hoop (Halo Bar) and Main Hoop mounted
as close to roof as possible.
5. Roof Hoop minimum of 39 inches wide and
safe distance from driver's head and padded.
6. Diagonal halo support bar required.
7. Diagonal roof support bar from cross bar
behind driver up to left front corner of halo is strongly recommended.
8. Center dash to halo bar mandatory, minimum
1 1/2 inches X .095 inches.
9. Front of cage must have at least two cross
supports side to side, one at dash level, one at roof.
10 Roof support not necessary if main roof bar
is one continuous piece.
11. Four driver side door bars mounted flush with
outer door panel mandatory.
12. All driver side door bars must be plated with
1/8 inch steel from frame to top of the top door bar.
13. Driver side door bars must have two upright
bars between each door bar.
14. Wing Window Bars mandatory on both sides.
15. Perimeter foot protection bar from outside
edge of door bars forward and curving into the frame required. Minimum 1 3/4 in. X .095 in. tubing.
16. Passenger side door must have three door bars
mounted no closer to the driver than the center of the passenger side frame
rail.
17. Roll bar padding required.
18. Engine compartment hoop and rear main hoop
supports mandatory.
19. All right angles should be gusseted.
2007 HAWKEYE DOWNS
ENGINES
UNALTERED
DEFINITION
1. All
engine parts must be in their original and "as cast"
configuration.
2. Any
evidence of machining, sanding, polishing, relieving, grinding, porting,
coating, chemical treating, abrasive blasting,
or
any other alterations to the original form or the addition of any material
whatsoever to any ports or chambers is prohibited.
ENGINE BLOCK (BOTH
HAWKEYE DOWNS AND MID AMERICAN RACING ENGINES)
1. American made production V-8 Engines only
(No V-6 or 4 Cylinders)
2. Production Cast Iron Block with standard
external measurements in all respects with the exception of the permissible
overbore (.060 in. max.)
3. No Aluminum Blocks. Stock Production only.
4. No removing of I.D. Numbers, No grinding or
lightening.
5. Minimum 4 inch Bore, Maximum 4.060 Bore.
6. Engine must be centered between upper
A-Frame Mounts
7. Maximum Engine Setback (Measured
from top of steering box mounting bolt to back of block): GM-33 1/2 inch;
Ford-35 inch
8. Minimum Engine Crankshaft Height 13 inches
ENGINE
BLOCK (HAWKEYE DOWNS RACING ENGINE ONLY)
1. Maximum Cubic Inches: GM-361, Ford-363,
Chrysler 372
ENGINE
BLOCK (MID AMERICAN RACING ENGINE ONLY)
1. Maximum Cubic Inches: GM-Ford-358; Mopar:
366
CRANK
(BOTH HAWKEYE DOWNS AND MID AMERICAN RACING ENGINES)
1. Stock Stroke for Block
2. Unaltered except for normal cleanup and
balancing.
3. Cannot be gun drilled, contoured, or
sculptured.
CRANK
(HAWKEYE
1. No aftermarket light weight crank shafts
CRANK
(MID AMERICAN RACING ENGINE ONLY)
1. Minimum 50 pound Sportsman type magnetic
cranks only.
RODS
(HAWKEYE DOWNS RACING ENGINE ONLY)
1. Stock Rods or Eagle SIR5700BBLW Replacement
Rods.
RODS
(MID AMERICAN RACING ENGINE ONLY)
1. Magnetic forged sportsman type connecting
rods only.
2. No titanium, aluminum, or H Beam Rods
3. 6.0 inch maximum length. 560 grams minimum weight.
PISTONS
(BOTH HAWKEYE DOWNS AND MID AMERICAN RACING ENGINES)
1. Any flat top or reverse dome piston may be
used.
2. Valve Relief may be cut into piston.
3. No portion of Piston may protrude above the
top of the block.
CAMSHAFT/VALVE
TRAIN (BOTH HAWKEYE DOWNS AND MID AMERICAN RACING ENGINES)
1. Any Magnetic Steel Camshaft with maximum
1/2 inch lift measured at the valve retainer.
2. Standard Timing Chain only.
3. Screw in Rocker Studs and Guide Plates
allowed. Valve Guides must remain in stock location and dimensions.
4. No Mushroom Valve Lifters, Rev Kits, or
Roller Tappets.
5 No 5/16 inch Valve Stems
CAMSHAFT/VALVE
TRAIN (HAWKEYE DOWNS RACING ENGINE
ONLY)
1 Full Roller Rockers allowed.
2 Stud Girdles OK
3 Any valve springs and retainers will be
allowed.
4 Solid or hydraulic lifters are optional. Stock Lifter Bore Only.
CAMSHAFT/VALVE
TRAIN (MID AMERICAN RACING ENGINE ONLY)
1 Roller Rockers only allowed on GM Votec
head, Ford N351 head, and Mopar W2 head.
All other heads must use stock stamped rocker arms.
2 No Stud Girdles
3 Stock Production valve spring diameter
only
4 Stock diameter magnetic steel hydraulic or
solid flat tappets only.
2007 HAWKEYE DOWNS
HEADS
(BOTH HAWKEYE DOWNS AND MID AMERICAN RACING ENGINES)
1. No angle plug, no bowtie, no 461X, or other
aftermarket heads.
2 Two Valves per Cylinder.
3. No Titanium Valves.
4. Three Angle Valve Jobs permitted.
5. Combustion Chamber Intake and
6. Sanding, Polishing, Relieving, Grinding,
Porting, Chemical Treating, Ceramic Work, Abrasive Blasting, Alteration to
Original Form,
Addition of Material to the Ports or
Combustion Chambers is strictly forbidden.
7. No port matching or
flow work is permitted.
8. When
cutting the valve seat angles, no stone or grinding marks are permitted above
the bottom of the valve guide.
9. Surfaces
where the cutter or stone has touched must not be polished.
10. No external sanding, grinding, or removal of
ID numbers of symbols.
11. Valves must be stock size and in stock
location.
12. Maximum Valve Diameter measured across the
face (Non Vortec): Intake 2.02 in., Exhaust 1.60 in. (Ford Cleveland: Intake
2.19, Exhaust 1.74)
13. Compression
10.8-1 MAXIMUM ON HAWKEYE
HEADS (HAWKEYE
1. Stock Steel Production Only or approved
World Products Stock Replacement heads. (No GM Vortec heads)
2 Titanium
Valve retainers OK
3. Heads may be cut for dual springs.
4. All
valve angles must remain within one degree of stock production. Maximum bolt
cut of 75 degrees.
HEADS (MID AMERICAN RACING ENGINE ONLY)
1. Stock Steel Production Only (Including GM
Vortec Heads)
2. No
Titanium Valve retainers
3. Valve
angles must be stock.
4. Maximum
valve diameter measured across the face for GM Vortec: Intake 1.94 inch;
exhaust 1.50 inch
INTAKE
MANIFOLD (BOTH HAWKEYE DOWNS AND MID AMERICAN RACING ENGINES)
1. Eligible
Unmodified Aluminum Intakes:
GM
(non Vortec): Edelbrock "Victor Junior" 2101 & 2975; Edelbrock "Performer" 2101
with EGR Port Only, (optional SB Chevy
Power+Plus HPR
(Hurricane) Manifold Non-EGR #52031)
Ford
N351: Edelbrock "Performer" 2181 & 2171
Ford
OE Windsor: Edelbrock "Performer" 2181, 2171, 2980, & 2981.
Mopar:
Edelbrock "Performer" 2176 or 2915
2. Older design intakes with similar part
numbers not permitted.
3. Any evidence of sanding, polishing,
relieving, grinding, porting, chemical treating, abrasive blasting, ceramic
work, addition of material,
or any alteration to original form is
forbidden
4. Cooling bleed lines allowed.
INTAKE
MANIFOLD (MID AMERICAN RACING ENGINE ONLY)
1. Eligible Unmodified Aluminum Intake for GM
Vortec: 7116 dual plane or Wieand 7546 and 7547.
CARBURETOR &
SPACER PLATE (BOTH HAWKEYE DOWNS AND
MID AMERICAN RACING ENGINES)
1. Carburetors
will be checked with track "Go/No-Go" gauges. Failure of this test results in
disqualification and confiscation.
If
in doubt, have carburetor checked before competing.
2. One
Stock Two Barrel, Holley Model 4412 500 CFM Carburetor.
3. No
alterations of, and/or no metal removed from the Carburetor, except the
enlargement of Idle Hold in Throttle Plate.
4. Choke
Housing may not be removed.
5. Choke
Butterfly may be removed.
6. Any
non-porous aluminum adapter allowed.
Maximum 1.575 inches thick with paper type gaskets. No home made carburetor adapters
7. Carburetor
Adapter/Spacer and Intake Manifold must be non-porous and Secure. No Vacuum Leaks
8. Jets
may be changed. No "Dial-A
Jet" devices.
9. No
Chemicals or Materials may be added to Air Cleaner.
10. No
Additional Fuel Reservoir or Pressure Equalizing Systems allowed.
11. Mandatory
Double Throttle Return Springs, working in opposite directions.
2007 HAWKEYE DOWNS
CRATE ENGINES
1. Late Model Sportsmen competitors may use unaltered
GM "Factory Stock" (88958602) or
"Limited
Late Model" (88958603) Crate Engines.
2. Hawkeye
Downs officials reserve the right to impound and/or replace any competitors
crate engine at any time.
3 Any engine found to be
tampered with results in loss of all points for the season, and confiscation of
engine by Hawkeye Downs.
4. Protest fee to open crate
engine is $1000. If engine found legal,
resealed engine will be returned to competitor.
If Engine is illegal, $1000
will be returned to protestor and engine will be confiscated by Hawkeye Downs.
5. Refusal to allow impounding
for tech or confiscation of engine will result in loss of all points for the
season.
6. NO aftermarket engine damper
allowed. You must use damper from engine manufacturer.
CARBURETOR (CRATE ENGINES ONLY)
1. All crate engines must use unaltered,
box stock 650 cfm Holley 4150 HP P/N 80541-1.
2. One Inch, Single Plane, Non
adjustable Carburetor Spacer Allowed.
3. Track Officials will
exchange carburetors on a regular basis.
4. Any Carburetor found to be
tampered with will result in disqualification from event and confiscation of
carburetor.
5. Refusal to allow
confiscation of carburetor will result in disqualification from event.
EXHAUST
1. Maximum 1 5/8 inch, over or under chassis,
single pipe, straight tube, collector header only.
2. No stainless steel collectors.
3. No 180 degree headers.
4. Must exit behind driver, under car or body
panels, to Infield Side of Car. May not exit on Grandstand Side of Car.
5. No Body Panel modifications for exhaust.
6. Must have Mufflers and must not exceed
98db. See General Rules for Penalties
7. 3
inches maximum OD plumbing, except for muffler bodies. Must start within 6
inches of header collector or exhaust manifold.
OIL
SYSTEM
1. Oil pan access hole with a minimum of 1 inch
diameter for connecting rod inspection required.
2. Aftermarket
oil pans and breathers allowed
3. Oil
Pump must be in stock location. No Dry Sumps
4. Single
Stage External Pump as OE replacement on Ford only.
5. No
Pumps to create a Crank Case Vacuum.
TRANSMISSION/CLUTCH
1. American
made O.E.M. manual transmissions, Richmond T-10, Winters 60100L, Brinn 70001,
Bert LMZ Plain Allowed.
2. At
least 2 forward gears and reverse gear must be operable.
3. No
"quick change" transmission units allowed
4. Steel
scatter shield required for all transmissions.
Two, 1 inch holes, placed front to rear with access from top of car.
5. No external lightening or alterations
except engagement and shifting modifications.
7. Stock
dimension unaltered cast iron or steel flywheels allowed. Aluminum flywheels
are allowed and must be of stock type and diameter.
REAR
END & DRIVE SHAFT
1. Rear ends must be passenger car, light
truck (1/2 ton or less) or quick change.
Quick change must have minimum ring gear
diameter of 10 inches.
2. 9 inch Ford Rear Ends legal for all
models.
Metric OEM brake parts may be used on 9
inch Ford Rear End. Aftermarket Brake
Mounting Bracket legal.
3. Iron or steel carriers and housings on passenger
car and light truck rear ends.
4. No titanium or other exotic metals allowed
in rear end. All shafts and gears must
be magnetic steel.
5. Rear End Yoke must be Magnetic Steel.
6. Locked Rear Ends are Legal. Spool Lock recommended.
7 Full Floater Rear End recommended. All Floater Parts must be steel with the
exception of the drive flange.
8. No Traction Control Differentials or
Traction Control Devices of any kind. No "Detroit Locker," "Gold
Track," or similar devices.
9. No aluminum or lightweight axle tubes. No
Gun drilled axles.
10. No Offset Rear Ends. No Cambered Rear Ends.
All Axle and Drive Flanges must be equal distance from the frame rail on either
side.
11. One piece magnetic steel or aluminum drive
shafts. Minimum diameter 2 1/2 inches
O.D. Drive Shaft must be painted white.
12. At
least one (2 recommended) drive shaft hoop required. Must be within 6 inches of Front U Joint.
2007 HAWKEYE DOWNS
BRAKES
1. All cars must have four wheel, foot operated,
Hydraulic Brakes in good working order.
All four wheel brakes must be operational at all times with no shut of
or cut off valves. No traction control
devices in brake system.
2. Brake
Metering Valve may be used
3. OEM
Cast Brake Calipers only. No lightening or altering.
4. Brake
Ducting permitted.
5. Aftermarket
Mounting Brackets may be used.
6. No
Brake Floater devices.
7. Metric OEM brake
parts may be used on 9 inch Ford Rear End.
8. Only one Brake Bias
Adjusting Unit per car.
WHEELS
1. 8 inch steel wheels only. Minimum Weight 19 pounds. May be any offset that maintains legal track
width.
2. IMCA labeled wheels legal if
they meet other wheel rules
3. 5/8" studs on front and rear hubs
recommended.
4. Steel Lug Nuts Only. Stud threads must extend
past outside edge of lug nut.
5. Self adjusting, automatic, air bleeder
valves NOT allowed.
6. Wheel Weights NOT allowed.
TIRES
1. All cars
use 8 inch Hoosier F 75 tires.
2. All race
tires must be declared in the tech barn prior to use, otherwise driver can be
penalized. (Consult 2007 Tire Sales
Rules/Limits)
3. No heating, soaking, softening, grinding,
buffing, or changing the composition and character of tire allowed.
RADIATOR & COOLING
1. Any
radiator allowed provided it fits under the hood in stock location. Aluminum
radiators allowed.
2. Fan
must have a shroud covering upper part of fan.
May not protrude through hood.
3. Overflow
catch can, 2 quart (1/2 gallon) or more, must be permanently installed ahead of
engine firewall.
4. No
cooling system components inside driver's compartment.
5. Electric
Fans Allowed.
6. No use of
antifreeze allowed. Disqualification if
spilled on track.
FUEL CELL
1. Must
be approved racing fuel cell, separated from driver by complete metal firewall,
secured with minimum four 1 1/2 in. X 1/8 in. straps.
2. Maximum
capacity 22 gallons. Must be constructed of at least 16 gauge steel.
3. Minimum
fuel cell ground clearance 11 inches.
4. Bladder type (soft cell) fuel cells
recommended.
FUEL
1. All
competitors must use Race Fuel approved by Hawkeye Downs Speedway. No Fuel additives of any kind.
2. No
Fuel lines passing through interior (driver's compartment).
3. No
nozzles, injectors, containers or lines for the purpose of dispersing
pressurized liquids or gasses, other than fire extinguishers, allowed.
4. Stock Type, Mechanical Fuel
Pump only. No Electric Fuel Pumps
ELECTRICAL
1. No
Traction Control Devices of any kind. 1
calendar year suspension & $2500
fine for use of traction control.
2. No
magnetos, crank trigger, multiple coil or programmable systems allowed.
3. On/Off Master Kill Switch must be located
behind the driver within six inches of window and painted bright orange.
4. No
Digital Gauges or electronic monitoring computer devices capable of storing or
transmitting information (except analog tachometer).
5. All
electrical wiring must be exposed. No
open ended wires or open plugs. Track Reserves right to remove conduit or
insulation to trace wires.
6 Dual
points, breaker, or breaker less systems allowed.
7. No
MSD or HEI Boxes. No adjustable ignition
control boxes. No timing retard
controls.
8. Batteries
must be securely mounted between the frame rails, forward of the rear axle and
covered.
9. Must have working starter. After market Starter OK. Must be mounted in stock location using stock
hardware
RADIOS
1. 2-Way Radios may be used, but Driver or
Spotter must also monitor VHF Frequency 151.625. Failure to monitor 151.625, team will be disqualified.
2. Team must register frequency with Track
Officials, who will also monitor communications.
3. Spotter may stand in approved area, but
can not interfere with spectators enjoyment of the event. Misconduct by Spotter, including but not limited to vulgarity, instructing
driver to block, disobey rules, arguing with officials or other spotters, will
result in
disqualification, fine and suspension.
2007 HAWKEYE DOWNS
