Big Diamond Raceway
2010 ENDURO RULES
BIG & SMALL CAR DIVISIONS
Revised 12/18/09
Steps have been taken to slow "over competitive"
stock vehicles to
even the competition. More special rules may be added during the
season and will be taken on a case
by case basis.
NOTE: if your car was legal to the prior rules
do not assume your car
will be legal to these rules (Please read completely).
Big Car =Any American or foreign straight 6, V6,
or V8 front wheel or rear
wheel drive minimum 4 passenger car with a minimum 104' wheel base
All big cars will run according to rules but MAY
have some restrictions to
certain models if they become too competitive.
No Camaro's, Trans Ams, Firebirds, or V-8 Mustangs
Small Car = Any 4 cyl car front wheel or rear wheel
drive 4 passenger
minimum car with a max wheelbase of 104".
Special rules for Small cars - Any other type model
cars shown to be over
competitive may have restrictions set forth on them during the season.
Mitsubishi Eclipse / Eagle Talon/ Plymouth Laser
will be on 6" rim and 6"
tire.
No 2 Seated (2 people) cars includes “Honda
CRX”.
No trucks or station wagons
All cars must have make and model painted on the
driver side
doorpost.
Claim Rule =The series promoter reserves the right
to claim any car after
an event to insure there is no high dollar cars competing unfairly. Any
items such as racing
seat, belts window net, and fuel cell, may be removed
designated by promoter. Refusal of claim will result in loss of
any and all
points, position and purse money.
This rule will be enforced.
BIG CAR = $ 750
4 CYL = $ 750
You must have your car numbers on each door and
roof minimum
18” high in a contrasting color.
There will be strict tech afterwards for all cars
in money positions.
Antifreeze - Will not be allowed.
All cars must include complete drivers and trunk
floor areas.
ENGINE must pull at least 17 inches of vacuum @
1000 RPM by BD
Raceway Tech gauges.
Suspension springs and stops must match from left
side of the car to
the right side of the car exactly (height, length, thickness, and equal
number of coils).
All suspension components must remain in stock
mounting locations
and must remain a stock production part with the exception of the
springs and shocks. (NO ADJUSTABLE
SHOCKS).
No Steering Quickners.
No moving, heating, cutting suspension.
You must have all 4 wheels with working brakes.
No Locked Rears.
Caster and camber changes are allowed within the
factory
adjustments. 1” of shims allowed in front upper control arm max.
No Locked Rears
No working 4wd or all wheel drive (rear drive shaft
may be
disconnected).
No Turbos or supercharged. (single Carb or Fuel
injection Only)
The engine, drive train, and cooling system must
be a stock
production part. No Porting, match porting, polishing, or grinding
of any kind. Stock rocker arms only.
No screw in studs, guide
plates, or poly locks. Hydraulic cam and stock type lifters only.
EXCEPTION: To allow for head repair: a maximum
of two (2)
rocker arm studs per head, may be replaced with screw in studs
(all other rules still apply).
No aftermarket racing parts of any kind except
air cleaners and
valve covers.
G.M. 6/8 cylinder cars must use a Rochester carb.
(only 1 gasket
permitted between carb. and intake. No Spacers.)
All big cars must run a stock automatic transmission
with a stock torque
converter. No standard shift transmission permitted in big car division.
No air flow improvement devices inside of the air
cleaner.
No aftermarket intakes.
No aftermarket exhaust headers or Ram horn exhaust
manifolds.
Big Cars: stock cast iron exhaust manifolds only.
Exhaust must exit behind driver.
Must have an operational PCV Valve in place.
Exhaust must exit behind driver.
All lights and glass must be removed (Front window
MUST be completely
replaced with wire mesh with a minimum of 2 - 1" wide x 1/8" thick steel
straps, spaced evenly
in center of windshield). No windows may be
covered.
Sunroof / T top openings must be covered with sheet
metal (welded or
riveted).
All trim, handles and moldings must be removed.
All interior upholstery must be removed except
the dash. A dash bar
welded to the roll cage MUST be installed.
No mirrors.
Racing seat mandatory / installation subject to
inspection.
Recommended the seat is supported from the roll
cage and not the
floor (the seat should not have any springs that you would sit on.)
The seat must support your body
(side), head, and neck.
Cars MUST have driver’s seat window net securely
fastened with
disconnect.
Must have suitable safety belts, shoulder straps,
and anti submarine
belts (5 point racing type minimum). Racing type seat belts must be
dated within 5 years. Belt
installation guidelines are attached following
general rules.
Must have racing helmet with face shield or goggles.
Helmet must be Snell
95 or better. M RATED HELMETS if used, MUST wear a fire resistant
head sock. No open faced helmets
permitted.
Fire suit is mandatory.
Leather gloves or racing gloves are mandatory.
Fire Extinguisher with a gauge must be securely
fastened, must be
mounted within drivers reach.
Fenders must be in place at start of race.
Hood and trunk must have the springs and stock
latches removed and
securely fastened without tools. No chains or Cables thru hood trunk -
Hood and Trunk pins are
recommended. Tool Less Entry required on
all cars.
Hood must have hole for fire safety if wheel
wells are retained.
Drive shaft must be painted white with safety chain,
cable, or hoop at front
of shaft.
All Doors must be welded, bolted, or chained shut
subject to
inspection.
One battery may be relocated in drivers compartment
if completely
enclosed and secured.
No gutting of inner sheet metal, hood, or trunk
or inside of drivers
area, except where roll cage extends into drivers door.(Must retain the
complete driver and trunk
floor areas).
MANDATORY 4 or 6 point cage, full cage with three
(3) minimum.
Drivers side and two (2) passenger side door bars. Each door
bar must be spaced with two (2) down bars
between each bar. A
back bar from the top of cage to floor on each side is optional.
Minimum (1-1/2” OD minimum,
.090 thick minimum). No pipe
fittings, threaded pipe, galvanized pipe, or conduit allowed. No
bars to extend out of
firewall. Cage guidelines are attached
following general rules.
Bars are allowed at the rear of car to protect
gas tank/fuel cell. These
bars cannot connect to the main roll cage. These bars may not reach
up over the rear hump
of frame, only to the flat of the trunk floor.
Rub rails allowed. No lower than center hub height/no
higher than
tires.Rub rails must be between tires only and must be tight
against body, smooth and rounded off subject
to safety inspection
(NO TIRE CUTTERS OR SPEARS)
No added weight ballast.
Front wheel wells may be removed.
Stock bumpers only – must be in place at
all times and must be
secured by chains or cables etc… to keep from dropping onto
track.
Stock fuel tank may remain in stock position if
safe, all stock rear
bumper filled tanks must be removed. No rear facing fuel inlets.
A check valve is mandatory in the vent line to
prevent leakage
in case of a roll over.
A marine type tank can be located in trunk secured
with at least (4)
1” steel straps. Fuel cells allowed. If fuel tank is relocated to trunk
area you must have
a totally enclosed rear firewall. Fuel line must
exit from the top of the tank / cell.
Wheels must be all the same size (13, 14, etc…)
and any offsets (max
7” wide = big cars and 4 cylinders). Reinforced right front wheel with
1” lugs recommended
for all cars.
Wheel weights must be removed.
Factory aluminum wheels are permitted.
No wheel spacers permitted.
Aftermarket steel wheels allowed – No bead
locks or aluminum racing
wheels.
6/8 cylinders – 70/75 Series Tires with 7"
wide tread
4 cylinders - 60 or above Series Tires with 7"
wide tread.
Summer Tread , All Season / M+S combination tires
allowed. No
Studded snow tires.
Only D.O.T. tires and may be mix-matched sizes
for stagger but still
must meet other rules.
No Mascots, decorating, spoilers, flags, or hood
scoops added to cars.
No Passengers.
Radiator must remain in stock position (Wire
mesh can be installed in front
of radiator; however, no reinforcing for added protection in front of the
firewall
is permitted). OEM Radiators ONLY.
No radio communication allowed from anybody other
than Big Diamond
control tower.
No spray foam sealants allowed. Many of these are
highly flammable.
All cars called to post race tech area may not
open hoods till told to
do so and must have jack, jack stands, and tools. All cars must start
on its own without an
extra battery, gas, or etc… Must start the way it
came off the track. If a car doesn’t start for testing,
a ten (10) minute
time limit will be allowed prior to be disqualified.
Drivers age 14-17 must have notarized permission
release and proof of
age.
AMB Transponders will be required. They may be
rented from the
track for $15.00 per event.
One Way receiving radios are mandatory (freq. 467.6000)
by all
drivers while on track. On track officials are not responsible to place
you in proper position.
NOTE -Any and all rules are geared toward even
competition in the spirit of
Enduro racing. Anything not covered in the above rules may not be legal
and should be
asked of the tech man before the race- Do not assume
anything is legal and then find out differently in the tech area.
We are here
to have fun and do not want to see anyone be DQ’ed.
