|
2008
OHSWEKEN THUNDER STOCK
2008
OFFICIAL RULES AND REGULATIONS
DISCLAIMER
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 the conduct of the sport and are in no
way a guarantee against injury or death to a participant,
spectator, or official.
The
Tech Inspector (s) shall be empowered to permit reasonable and
appropriate deviation from any of the specifications herein or
impose any further restrictions that in his opinion do not alter
the minimum acceptable requirements. NO EXPRESSED OR
IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF
SPECIFICATIONS. Any interpretation or deviation of these rules
is left to the discretion of the officials. Their decision is
final.
No equipment
will be considered as having been approved by reason of having
passed through inspection unobserved. The Tech Inspector(s)
reserves the right to add, delete, modify or update the rules at
anytime in the interest of providing parity for all competitors.
These changes may be made via an announcement at the driver
meeting, notation on the official pit notes or a technical
bulletin, and automatically amend all specifications herein.
All changes will be posted.
It
is the responsibility of the competitor to obtain and become
familiar with the current rules pertaining to the division in
which he/she chooses to participate.
2008
OHSWEKEN SPEEDWAY THUNDER STOCK RULES
It is the responsibility of each
competitor to read, understand and comply with these rules.
These rules are neither foolproof nor exhaustive. They are
intended to provide fair and competitive racing for all who
participate in this division. The spirit and intent of these
rules is the standard that will be used for competition at
Ohsweken Speedway. Ohsweken Speedway officials are authorized to
decide if an equipment change or addition is an attempt to
circumvent these rules or provide an unfair advantage. OS
officials can and will disqualify any entry in violation of the
spirit and intent of these rules. Decisions will be based on
common sense, consistency, impartiality and fairness. If there
is disagreement or dispute regarding the meaning,
interpretation, or application of these rules, OS
officials’ decisions shall prevail. If these rules do not
specifically say that you can add, change, or modify something,
then you should consider that addition, change or modification
illegal. Any questions about the legality of an addition
or modification not covered by these rules, must be answered by
OS officials in writing, and their decision is final.
Any
participant who refuses to allow tech officials to inspect their
car will be subject to the following:
Any competitor who fails to tear down a
car for inspection when requested to do so by an official
will be disqualified from the event, lose all points and prize
money from that event, For handicap purposes, you will be
credited with a feature win.
Any participant
found to be illegal and disqualified from an event will not
receive points or prize money for that event. If found illegal
on a double features night, the car will be declared, illegal
for both races and will not receive points or prize money for
either race. For handicap purposes you will be credited with a
feature win.
2nd infraction
for deemed illegal or technical issue. You will be
disqualified from the event, lose all points and prize money
from that event, and total loss of all accumulated points to
date.
OS reserves the
right to confiscate any illegal components at any time.
OS reserves the
right to alter or amend these rules at any time in the interests
of safety, cost control or fair competition. The safety of each
racecar and all equipment is the complete responsibility of the
driver/owner, and the driver/owner acknowledges this
responsibility by participating in any racing activity at OS.
2008
THUNDER STOCK OFFICIAL CAR SPECIFICATIONS
*CARS
MUST BE STOCK – ALL EXCEPTIONS ARE NOTED – READ CAREFULLY*
TERMS:
1) The term "Stock
O.E.M. replacement”
means that the item/part must have been a standard item/part on
the MAKE and MODEL of the vehicle being driven as a racecar.
Just because a part is manufactured by the company that
manufactured the vehicle does NOT mean the part is legal. The
part must have been available on the specific vehicle being used
as a racecar. Stock O.E.M. replacement direct fit, direct
replacement part. Must meet size/weight/material
requirements as if factory produced. No Modifications.
2) The
term Factory Stock/
Production
or Factory Produced:
Manufactured by the company who produced
the vehicle being used as a race car. Manufactured for the
year/make/model of the racecar. No aftermarket parts allowed.
REMEMBER
– BUILD IT LEGAL, KEEP IT LEGAL AND HAVE FUN!
In the spirit of equalizing competition,
adjustments may be made as becomes necessary
THUNDER STOCK COMPETING MODELS
Competition is open to all North American made steel-bodied
passenger cars from 1969 and
newer. Minimum factory wheelbase of
100”.
No Jeeps,
4WD, SUV’s, station wagons, compacts, convertibles, ¾
ton or 1 ton trucks or dual wheels, no front wheel drive, no
fuel injected vehicles.
Cars may be disallowed if they are
considered too battered and unsafe.
APPEARANCE
Cars neatly painted with numbers at least
18 inches on side doors, and roof (facing
the grandstands)
BATTERY
Battery must be securely fastened in trunk or under hood or
behind the driver.
Positive terminal end to be insulated to prevent shorting (use
of rubber suggested)
BODY
Must retain All Factory Stock appearance,
location and dimensions.
The body panels must remain stock steel
location for the car’s make and model year.
Body no lower then the frame rail.
Altered bodylines will be significant
reason for disqualification.
Bodies must be attached and mounted in
original stock factory location.
No off setting bodies and must be centered
on the chassis.
The body may not be lowered on the frame.
Windshield pillars and windshield angle
must remain stock appearing.
Headlight, parking, and taillights must be
removed and neatly covered.
Maximum 6” rear spoiler no side pods or
side supports allowed.
BODY
MOUNTS
Bracing must be welded or bolted to a
minimum 2 locations to the frame, two
locations to the body.
BUMPERS
Stock front
and rear bumpers (rubber bumpers allowed) or fabricated bumpers
with stock appearing cover must be approved by official.
A bar may
be mounted inside the bumper at 19” from center to ground.
All bumpers must be rolled in and securely
fastened in place.
Bumper shock brackets must be welded and
or bolted.
Aftermarket plastic front and tail
pieces allowed but must be stock appearing.
Corner bracing is allowed inside behind
sheet metal.
DOORS
Must be welded or bolted shut.
An approved window net is mandatory with a
quick-release latch.
FIREWALLS
AND FLOOR
Car must retain stock steel firewall both
front and rear in original location.
Stock mounted brake pedals mounted in
stock location. (Pedals may be extended)
Sheet metal may be added to repair
firewall mounted in original location.
Stock steel floorboards in original
location. Right side may be raised 6” for exhaust
clearance.
Rear firewall must be completely sealed
off from drivers compartment
must use 18 Gauge Steel minimum. No
aluminum.
Rear Firewall may start no further forward
than 20” in front of the rear axle centre line (at floor
board) and continue upwards on a straight plane to the
stock upper rear window ledge.
Trunk floor may
be removed.
FRAMES
AND SUSPENSION
A. Frames
All frames must retain all Factory Stock
specifications and dimensions for make and model
from front to rear.
Rusted out rear clips may be reinforced
from rear-end back.
Unibody cars may tie sub frames together.
Sub frames may be tied together but must
be symmetrical to the centerline of the car.
“X”ing of frames allowed.
Rear frame rails may be reinforced but
mounting hardware for springs must remain exact factory
stock location.
B.Suspension
Front and rear suspension must be stock
dimensions.
Front upper control arm may be replaced
with tubular arms with bolt in ball joint, Metric cars 8”-8
½”, ’73-‘77 GM and '70-'81 Camaro-Firebird 9”-9 ½”
measured center of shaft to center of ball joint.
Must be mounted in stock position.
All other cars stock length.
Rear
control arms may be fabricated to stock dimensions or stock arms
may be reinforced.
Steel caster camber plates allowed on
strut cars.
Any springs allowed must be stock coil
diameter.
Cut springs allowed.
The use of twist in ties or rubber spacers
are allowed between the coils.
Adjustable spacers or load bolts allowed
above or below rear coils.
Adjustable or solid spacers allowed above
or below front springs
Rear shackles must be no longer than 6”.
(Multi-bolt holes allowed ).
Lowering blocks allowed 2” Max.
The
use of aftermarket bushings allowed.
GLASS
& TRIM
All glass and plastic must be removed. This includes all chrome,
lights, mirrors, reflectors and
trim.
HOOD & TRUNKLID
All hood and trunk lid must remain on car
at all times.
All hoods and trunk lid in stock position
and properly sealed from drivers compartment.
All hoods and trunk lid must be securely
fastened.
INTERIOR
All knobs, handles, decks, unnecessary upholstery and seats must
be removed.
No rearview mirrors are allowed inside or
outside of the car.
ROLLCAGE
No-offset cages.
A roll cage is mandatory and must consist
of a minimum six-point roll cage with approved
driver protection.
Roll cages must be welded directly to the
frame.
Roll cages must be constructed of
steel tubing 1-1/2” O.D. x .120 ” wall
thickness or 1-3/4” x.095” wall
thickness.
No extra bracing on outside of car
allowed.
Three (3) horizontal bars minimum running
between the front and rear upright
bracing are required on the
driver’s side and must bow outward.
(not including the frame)
Passenger side must have a minimum of (3)
horizontal bars running between
front and rear upright or a X with a
top straight bar.(not including the frame)
Front centre windshield post minimum
1-1/4”x.120 mandatory.
Upper roll cage must have centre roof bar.
1-3/4” x .095 minimum or
1-1/2 “x .120 minimum.
Main rollbar must be symmetrical to
driveshaft.
All roll bars in driver’s immediate area
must be padded.
RUB
RAILS
One rub rail allowed on each side and maximum 1” by 2”
rectangular tubing mounted tight to
the door panel only.
Must have ends beveled.
No sharp edges.
STEERING
COLUMN
Steering Column must be in original position for make and model.
Steering quickener allowed.
TOW HOOKS
Front and rear tow hooks are required.
WINDSHEILD
All glass removed. Windshield must be replaced lexan or full
screening. 1” square
maximum.
Window screen must
cover the entire windshield area. (from door post to door
post)
AIR
CLEANERS
Aftermarket air cleaners may be used.
Air cleaners may not extend beyond the
hood.
AIR FILTER
ONE round type air filter element
maintaining a minimum of 4 inches and a
maximum of 14 inches in diameter
will be permitted.
K& N style filters will be allowed.
No special air cleaner top or bottoms that
direct air into the carburetor.
No plastic air cleaner’s tops or
bottoms. (metal only)
All air shall be filtered through the
filter element.
No carburetor inserts to direct air into
the carburetor.
No air boxes, hoses, or any device that
directs air into the air cleaner.
No ram air.
BRAKES
Shut-off valves on any brake line are NOT permitted.
No rear disc brakes allowed.
All cars must have OEM working brakes at all times.
DRIVE
TRAIN REQUIREMENTS
A. Transmission
Only stock manufactured 3 speed or 4 speed
automatic OD transmissions are permitted.No
alterations.
2 speed Powerglide will be allowed
only with 150lbs. added to minimum weight.
Stock standard transmission allowed if
engine is 305 cubic inch. +
0.060” overbore or less.
No light weight flywheels, pressure
plates or disks. OEM only.
Must have all operational forward and
reverse gears.
Functional stock unaltered V8 OEM torque
converters. Minimum weight 39 lbs. full of oil.
Transmission coolers are allowed, only in
trunk or engine compartment.
B.
Drive Shaft
Drive Shaft must be steel OEM type.
Drive Shafts must be painted white.
One front 360 degree drive shaft
hoop(mounted towards front half of driveshaft) from
1” x ..095” tubing is mandatory.
C. Rear End
Must be same as make, model of chassis
being used.
Rear end may be locked by welding spiders
or using steel mini spool.
Any gears can be used.
Racing wheel studs are mandatory.
ELECTRICAL
SYSTEM
The self starter must be in working order
and located in stock position.
Only standard factory OEM type production
starters permitted.All cars must start
under their own power.
STOCK OEM HEI Distributor. No after market
coils or modules.
EXHAUST
SYSTEM
Unaltered stock cast iron exhaust
manifold only allowed or factory built steel street style
headers are permitted primary pipes maximum 1 5/8" OD.
Mufflers
are mandatory if headers are used must be an unaltered OEM or
unaltered street style muffler. No glass pack type muffler or
"cherry bomb" muffler.
Mufflers
are recommended with cast manifolds..
Maximum exhaust pipe diameter 3" OD
round with cast manifolds maximum 2 1/2" OD round with
headers, no oval or square.
Pipe must run under floorboard and exit
behind the driver.
No center dump manifolds
No “H” or “X” pipes.
FUEL
PUMPS
Mechanical fuel pump only.
No electric or belt driven fuel pump
allowed.
Engines converted from fuel injected, electric pumps will be
allowed but must have
oil pressure shut off.
FUEL: Pump Gas or racing fuel, No additives.
FUEL
CELL
Stock gas tank must be removed and replaced with a mandatory
fuel cell.
Fuel Cell shall be securely mounted in the
trunk area with a minimum of two straps
of 1/8” x 1” steel.
Fuel Cell to be no lower than lowest part
of frame section or be fully protected by
a minimum of 1-1/2" tube.
No stock location tanks allowed.
No aluminum tanks allowed.
All caps, fittings and lines must be
secure, leak proof and of high quality.
Fuel line from trunk to engine must be one
continuous line securely fastened under
floorboard and attached to frame rail.
Trunk must have to be opened to refuel.
No sloppy installations.
RADIO
ONE-WAY RADIO IS MANDATORY. Frequency 454.000
RADIATOR
Racing aluminum radiators or stock aluminum radiators allowed.
No electric pumps.
Radiator must remain in front of the
engine in the stock position.
Racing fans and electric fans allowed.
Metal flex fans are not permitted.
SAFETY
Entrants must wear an SFI 3.2A -1 or better fire retardant
racing suit.
Entrants must wear a proper fitting
full-faced 95 SNELL or newer -approved racing
helmet.
2000 SNELL or 2005 SNELL recommended.
Fire proof gloves and footwear recommended.
Neck collar is recommended.
Helmet must be worn at all times when driver is in vehicle.
SEAT
BELTS
2004 or newer dated recommended.
Minimum three (3) inch wide, five-point
racing seat belt harness mandatory.
One 3” inch wide lap, shoulder, (two
belts over the shoulder) and submarine strap
mandatory.
Both ends of lap belts must be securely
fastened to the frame and roll cage with
high quality bolts, not less than 7/16 inch in diameter.
½” recommended.
No frayed or torn belts.
SEAT
Seat must be an aftermarket aluminum high back-racing seat. No
fiberglass seat allowed.
Seat must be securely fastened in six
spots, Four (4) on bottom and two(2) on seat
back.
Seat must be securely fastened to frame
and cage.
No floorboard installations allowed.
The seat must be positioned to the left of
the center of the car.
All bars and sharp contact areas around
driver must be padded.
SHOCKS
AND STRUTS
Steel shocks or struts only.
One steel shock or strut mounted in stock location.
One per wheel.
Pricing not to exceed $ 130.00 Canadian
per shock.
$230 Canadian per strut.
STEERING
WHEEL
The steering wheel center must be padded.
Minimum size of steering wheel 12
“diameter.
TIRES
Cars running SPEC, GM Crate part # 88958602 or 305 cubic
inch or less engine +0.060” overbore allowed
Hoosier 8” spec tires.
Maximum radial tire size P235 with
8”tread. DOT numbers and tire stampings must be visible.
No snow or ice tires allowed.
WEIGHT
All
must weigh a minimum of 3000 pounds after the event with driver.
Any additional weight must be securely
fastened with two, minimum ½”diameter, grade 8 bolts
No added weight in the driver’s
compartment.
Added weight must be painted white with
the car number painted, engraved, or stamped
on each piece.
It is recommended that extra roll cage and
driver protection be considered for reaching
legal weight.
Rear weight % for leaf spring cars maximum 47%, coil spring cars
maximum 49%.
WATERPUMP
& PULLEYS
OEM replacement waterpump only.No Chevy aluminum.
The use of aftermarket pulleys will be allowed to assist
over-heating problems.
WHEELS
Steel racing type wheels allowed.
Maximum steel wheel width of eight (8)
inches.
Minimum Three (3) inch and Four (4) inch
maximum offsets (backsets) allowed.
1/2 inch studs, minimum, are mandatory on
all four wheels.
Must have one (1) inch lugs
A wheel spacer up to a ½” on right
rear is allowed.
WINDOW
NETS
Racing window nets are mandatory on
driver’s side of car.
Window net to be mounted so latch is at
top front of window.
ENGINE
Must be in stock location.
Maximum engine size. Ford 351 (no
Boss or Cleveland), Chrysler 360,GM 350,
Any engine under 318 CID must be
1976 or newer.
Must be stock stroke, 0.060” overbore.
Engine must be same make as chassis (GM
engine in GM car).
Factory blocks with factory
dimensions except 0.060” overbore.
No aftermarket or aluminum blocks.
Minimum deck height 0.020” with
steel gasket or zero deck height with 0.040” gasket.
Internal block painting, screens and plugs
allowed.
Lifter valley baffles allowed.
Rods must be stock length. (Chev.350
5.7”) steel only. No light weight.
INTAKE
MANIFOLD
An aluminum four barrel intake
as cast box stock with no modifications or grinding
permitted. Manufacturers and part numbers
that are legal are as follows:
(a) Weiand X-Celerator, Chevrolet - part #
7547, Ford - part # 7515, Chrysler - part
# 7545 (b) Edelbrock Torker II Chevrolet - part # 5001,
Ford part # 5021, Chrysler part #
5076. (c)Edelbrock Performer Series GM #2101, #2104, #2116,
#3704 Ford #2750 , #2181, #2121,
#3721, Chrysler #2176 (d)OEM 2 or 4 barrel dual plane intake
with no modifications.
CARBURETOR
Holley manufactured 2 barrel # R4412
carburetor permitted with no modifications
box stock only except choke plate removed and jet changes. Or
any OEM production 2 barrel carburetor
(max. 1-3/8” venturi) may be used. No modifications
except jet changes and choke plate removed. One 1 inch thick
non adjustable adapter approved by
official . Two .030 gaskets only. No
air induction No carburetor inserts
or other devices to direct air into intake. Stock type air breather
mounted parallel to intake.
PISTONS
All engines must use stock type OEM flat top pistons with full
skirt. No light weight pistons.
CYLINDER HEADS
Screw in studs and guide plates allowed.
No high performance heads. OEM stock type valves. No work below
valve seats.
Chev. max. valve size intake 1.94 exhaust 1.50. Stock diameter
single valve springs and retainers
only.
Ford and Chrysler stock valve size for
head.
Stock length pushrods. OEM type stamped
steel rocker arms Chev 1.5 ratio only
No roller or roller tip rocker arms.
350 Chev 72 cc minimum combustion chamber
350 Chev approved head numbers-014, 126,
195, 267, 330, 336, 339, 388, 393, 441, 445, 454, 487, 493, 545,
598, 624, 642,
709, 799, 813, 862, 881, 882, 920, 991,
997
Vortec heads allowed on 305 CID engines
only.
Ford 302 CID and Chev 305 CID heads
must be 1976 or newer. No 305 heads
on 350.
CAMSHAFT
Any hydraulic camshaft may be used not to exceed .450 lift on
intake or exhaust at the valve with
stock type hydraulic valve lifters. No roller lifters.
Engines under 305 CID + 0.060”overbore
allowed stock type roller hydraulic valve
lifters.
OIL
PAN
Optional viewing window can be installed in the oil pan.
Any oil pan may be used.
NOTE
The engine owner will be responsible for
any, and all costs incurred in the tech
inspection of this engine.
SPEC. ENGINE
RULE
A. SPEC
Engine Location
Engines must be mounted in stock location.
B.
SPEC ENGINE BLOCKS
All
engine blocks must be standard factory production passenger
block.
Engine block and component parts must
retain all standard stock external and internal
dimensions.
No aftermarket or aluminum blocks.
Zero deck allowed on blocks with maximum
.060 overbore allowed.
Internal polishing of the engine block is
not permitted.
Chevrolet –350 CID, Ford-351CID,Chrysler
-360 CID allowed.
Stock hardware on engines.
C.
SPEC PISTONS AND RODS
Factory
production unaltered replacement three ring, four eyebrow flat
top aluminum
pistons allowed. No modifications.
Only Factory production or OEM standard steel piston pins may be
used.
Only Factory production steel connecting
rods permitted.
All rods must maintain the standard stock
rod length for engine block used.
No Oldsmobile Rods.
No modifications of any kind.
D. SPEC
OIL PAN
Any steel oil pan.
No oil coolers allowed.
No accusumps or external oil pumps
allowed.
E.
SPEC CARBURETOR
Holley R4412 that MUST REMAIN BOX STOCK.
Carburetor must be mounted parallel to
intake.
Track Officials reserve the right to and
will exchange any competitor's carburetor at
any time.
Choke may be removed, throttle shaft may
be welded, jets and power valves may
be changed.
One- BRP 377 adapter mandatory.
Two .030 Gaskets only.
Throttle Shafts must remain standard and
must not be thinned,cut or altered. No modifications.
No air induction plastic inserts or other
devices to direct air to intake.
F. SPEC
CYLINDER HEAD
All Chev. cylinder heads must be factory
production stock cast iron 882 head only.
Identification and part numbers must
remain on the part being used with no alteration.
Any attempt to alter, change, or eliminate
part numbers will result in that part’s ineligibility.
Maximum intake port of 160c.c and maximum
exhaust port of 60 c.c.with minimum
74 cc. combustion chamber.
No internal grinding except valve seats.
All cutting in reference to the valve job must
be centered off of the centerline of the valve guide. Upon
completion of the valve job, the
bowl area under the valve seat down to the bottom of the valve
guide must still be the same
configuration as far as shape and size as it was from the manufacturer.
Must retain same configuration.
No work below valves.
Screw in studs, guide plates and poly
locks allowed Chev maximum valve
size INTAKE 1.94 EXHAUST 1.50 Ford
and Chrysler stock valve size for head
Stainless steel exhaust valves allowed. No
neck down valves, No titanium valves.
No bronze guides, but bronze liners
allowed.
Minimum head gasket thickness .040.
Stock diameter single valve springs and
retainers only.
No dual valve springs.
G. SPEC
CRANKSHAFT AND HARMONIC BALANCER
Only factory production cast iron
crankshafts with no other modifications of any kind
except minimum .030 under size. Chev Part # 3932442 or #
14088526.
Drilling for balancing only.
Must remain stock stroke.
Knife-edging, polishing, undercutting, and
lightening is not permitted. No modifications.
Factory production or OEM replacement
harmonic balancers are permitted.
H. SPEC
CAMSHAFT AND TIMING CHAIN
Hydraulic camshaft only.
Not to exceed .450 lift on intake and
exhaust with stock diameter lifters.
No roller cams allowed.
No mushroom cams allowed.
No gear or belt driven cams.
Timing chain and gear may be of a roller
type or OEM replacement chain and gear.
Lifter valley baffles allowed.
I.
SPEC EXHAUST MANIFOLD
Stock cast iron exhaust manifold must be
used (unaltered) – no center dump manifolds.
J. SPEC ROCKER ARMS
Stock ratio stamped steel rockers arms
only.(Chev. 1.5)
No roller tip or roller rockers.
K. SPEC
INTAKE MANIFOLD
Only an aluminum four barrel intake
as cast box stock with no modifications or
grinding permitted.
Manufacturers and part numbers that are
legal are as follows:
Weiand X –Celerator, Chevy # 7547, Ford
# 7515, Chrysler #7545 Edelbrock Torker II Chevy # 5001, Ford #
5021, Chrysler #5076. Edelbrock Performer Chevy #2101, Ford
#2750 or #2181, Chrysler #2176
L. SPEC
PUSH RODS
Stock length and diameter push rods.
Chev.350 1.250 diameter
spring with installed height of 1.70
Ford 351 1.500
diameter spring with installed height of 1.82
Chrysler 360 1.500 diameter spring
with installed height of 1.65
NOTE:
The engine owner will be responsible for
any and all costs incurred in the tech
inspection of this engine.
GM CIRCLE
TRACK CRATE ENGINE Part # 88958602
Must remain stock.
100lbs. weight break for GM
crate engine. After 2 feature wins the car will no longer be
allowed the weight break.
ANY TAMPERING OR CHANGING OF ANY ENGINE
PARTS WILL RESULT IN COMPETITOR
BEING DISQUALIFIED FROM EVENT, LOSS OF ALL
POINTS TO DATE AND SUSPENDED FOR ONE YEAR.
Carburetor
Holley R4412 that MUST REMAIN BOX STOCK.
Choke may be removed,throttle shaft may be
welded, jets and powervalves may be
changed.
Carburetor must be mounted parrallel to
intake.
Track Officials reserve the right to
exchange any competitor's carburetor at any time.
One BRP 377 adapter only.
Two .030 gaskets only.
Throttleshafts must remain standard and
must not be thinned,cut or altered. No modifications.
No air induction inserts or other devices
to direct air to intake.
NOTE:
The engine owner will be responsible for
any and all costs incurred in the tech
inspection of this engine.
Merrittville
Hoosier Stocks, Humberstone Street Stocks and Flamboro
Thundercars will be allowed to participate in the Thunder Stock
class. Must run home track rules no mixing of rules.
Flamboro
Thundercars will be allowed maximum 7" wide rims with DOT
235 maximum size radial tires.No snow or ice tires.Thundercars
will not be allowed mirrors. One way radio is mandatory 454.000
frequency.
Any
questions or concerns regarding rules contact;
Tech Director Glen Hils (905) 628-1716 Weekdays 9am-4pm only
|