2008 MODIFIED RULES
Tire: Five Mile
Point Speedway
Sportsman Modified Track Tire:
American
Racer 92/13 SD 48 or 50 right rear compound
American Racer 87/13 SD
44 left rear compound
American Racer 85/11 SD
33 right front compound or harder
American Racer 84/11 SD
33 left front compound or harder
Available through Frenchs Auto
Parts (607) 774-4500.
MODIFIED and SPORTSMAN RULES
MODIFIED AND
SPORTSMAN MINIMUM SPECIFICATIONS
FRAME:
- Only
round steel roll over bars may be used. Front and rear roll bars must be connected
at top in a cage type configuration. Two round horizontal side bars on each
side are mandatory. The topside bar must be a maximum of 20 below the top
roll bar. Proper bracing and triangulation on front and rear roll bars is required.
All roll bar bracing must be a minimum of 1-1/2 diameter by .095 wall thickness.
A minimum of one diagonal bar across the top of the roll cage is mandatory.
- The
rear main roll bar hoop must be a minimum of 26 measured across from
outside to outside of tubing and must maintain that measurement from the
bottom all the way to the top of the cage. Bottom of the rear roll bar must
be directly welded to the 2 x 4 frame (no outriggers). The front roll bar
must be measured and constructed the same way, except that the allowable
taper in the frame rules will govern the width dimension.
- Only
two roll bar diameters will be permitted. Roll bars of 1 3/4 diameter
will require a minimum of .095 wall thickness. Roll bars of 1-1/2
diameter will require .120 wall thickness.
- A
minimum clearance of 1-1/2 is required between the top of the normally seated
drivers helmet and the underside of the
horizontal roll cage bars.
- Shock
resistant roll bar padding must fully cover all bars that that may come in
contact with the drivers head while strapped in the seat. On center type steering,
all housings, lines, and fittings must be covered with shock
resistant
roll bar padding. The steering wheel center must also be padded. The starter housing
and any other points of contact that could potentially injure the driver must
also be adequately padded. It is recommended that this padding is flame
retardant.
- All
cars must have a functional padded head rest which must be in line with center
of drivers head, if not built into the seat.
- Adequate
window openings on both sides of the car must be maintained for emergency
exit of the driver. The minimum opening size is that which will allow a
rectangular box with dimensions of
12
high by 18 wide by 30 long to be passed through the inside of the car from
one window through to the
other
side. Any obstacles other than the drivers head rest, which prohibit the
passage of the inspection box through the cockpit, must be removed.
8. All cars must have a drive shaft cover. All
cars with open drive shafts, must have a tunnel, made
from a minimum of 1/8 thick steel which extends from 2 under front edge of
seat to the back of the transmission
covering the shaft and U joint, and output flange on top and both sides. It
must extend completely down to floorboards. It must be held in place with a
minimum of four 3/8 diameter bolts
at bottom connected to a substantial cross-member. This drive shaft cover must
be a solid unit with no cut-aways for lightening purposes.
9. Two
steel safety rings diameter to suite x 1/4 wall thickness x 2 wide, each fastened
by two 3/8 grade 5 bolts to the torque arm side plates or the frame must be
installed around each universal joint.
10. Closed drive type cars, torque tubes, or bells that already have a
360 degree covering from U joint back to seat will be accepted as is. To
protect the driver, any suspension link such as a torque arm, coil over or trailer bar inside the
drivers compartment must have a steel cable (1/4 in diameter or more) or
clamp connecting it to a substantial
cross-member to limit its range should it break loose. These parts must have no sharp edges and must be padded.
11. Firewalls, both front and rear are mandatory.
The rear firewall must extend from the top of the fuel cell to the belly pan to
isolate the driver from the fuel cell. A minimum thickness of .050 aluminum or steel is required. A minimal amount
of sheet metal may be cut out for drive shaft clearance. The front firewall
must fully isolate the driver from the engine compartment.
12. Belly pans are mandatory and must extend from front firewall to rear
firewall and be attached at both spots. It is mandatory to have a separate
floor to protect the drivers feet in the event the under pan falls off. This extra floor must
be attached to the frame or cross-member or both, and extend from
SEAT AND SEAT BELTS
- All
cars must be equipped with 5 point seat belts to SFI 16.1 specifications. All
belts must be securely fastened to the frame or cage. Bolts may not be inserted
through webbing for mounting.
- Seat
belt webbing that comes into contact with any sharp or un-radiused metal edge must be protected from that edge
by means of push on grip vinyl trim. The areas of concern are the webbing
slots in the metal racing seats. All the seat manufacturers either roll
the edge or supply the seat with trim protecting the webbing from abrasion
or cutting under impact conditions.Webbing entry
slots into the seat with an existing metal roll of 1/8 inch smooth radius
will not require vinyl trim.
- The
areas where the webbing slot has been enlarged by filing or cutting are of
particular concern. In most instances the edges have been left sharp, increasing
the incidence of belt failure. As racing seat belts are subjected to severe
conditions, it is required that worn/frayed belts are replaced immediately,
We encouraged that undamaged belts are replaced
every 24 months. The date sewn into the webbing should be used as a guide.
Belts older than
36 months will not be permitted for the 2008 season. Damaged belts will
absolutely not be permitted.
- Drivers
seat must be securely fastened to frame or cage in six spots, with a minimum
of six 3/8 bolts, four on bottom and two on the seat back. All seats must
have a minimum 1/8 steel plate under and up the back 4 and be as wide as
seat. The seat must be one piece high back type only. The seat must be
made of aluminum only (no fiberglass). A full containment seat or aftermarket
bolt on head restraint is highly recommended.the
front firewall past front of edge of the seat.
DRIVERS EQUIPMENT
- All drivers must wear a SA 2005 or
newer SNELL approved full-face helmet.
- All
drivers must wear a clean one piece SFI drivers suit, quilted or with underwear,
head socks, gloves, foot socks and shoes.
- Arm
restraints and a neck brace are highly recommended.
FUEL
- All
crews must carry an operable fire extinguisher of 20 pound marked with the
car number in 2 inch numbers/letters in the rear of their transporter, capable
of extinguishing gas and oil fires!
- On
board flame-out systems fitted in the race car are recommended.
- A
fuel cell with a maximum capacity of 24.5 U.S. gallons is mandatory. No pressure
tanks are permitted on fuel systems.
- The
fuel cell must be fully encased in a steel container with a minimum thickness
of 20 gauge. An optional aluminum container may
be used with a minimum thickness of .060. The cell must be fully foamed
with just a minimal cut-out for filler. Cut-out may be no larger than 6
wide by 10 long by 7 deep. Fuel lines must siphon from the top only.
There must be a oneway safety
valve in the vent line. Fuel tank must be mounted behind driver.
Fuel tank must be secured by at
least two steel straps (each strap must be a minimum of 1 wide) and bolted
with at least 5/16 diameter grade five (3 line) bolts.
- Fuel
cells should be to SFI 28.1/.2 or FT3. No fuel cell bladders may be older
than 5 yrs from date of manufacture.
- A
horizontal bar with minimum dimensions of 1 by .095 wall thickness must be
mounted behind the fuel cell for rear impact protection.
- No
racing fuel in drums may be brought on to track premises.
- A
fuel shut-off valve must be mounted within easy reach of the driver and the
safety crew. It must be labeled in a clearly visible location with words FUEL ON/OFF
with a bright colored paint or decal.
- A
minimum of two throttle return springs and a steel toe loop on gas pedal are
required. Throttle return springs must be mounted in two different locations.
ANCILLARIES
- All
cars must have an ignition switch, which is easily accessible within the drivers
compartment. The ignition switch must be marked ON/OFF with a bright
colored paint or decal and be clearly visible and easily accessible to the
safety crew.
- Fuel
lines, power steering lines, and fittings running through the drivers compartment
must be of made from an approved braided type line only. No plastic or
glass fuel filters permitted. High pressure lines and fittings or hot fluid
lines running through the drivers compartment must be encased or shielded
by a deflector to prevent driver injury.
- All
cars must at all times have four wheel hydraulic brakes in good working order.
Brake tests may be held throughout the year.
- Rear
wheels must have a minimum of five lug nuts. A minimum of three lug nuts
is required on front wheels only. No knock off hubs are permitted on any
wheel.
- Exhaust
headers must be safe for the driver and exit past the drivers seat.
- All exhaust pipes must exit facing the
rear of the car and be directed in such a way as to disturb as little dust
as possible. Pipes may not exit through the doors or in front of the rear
tires.
BODY
- No
mirrors or reflecting devices permitted.
- Inspectors
reserve the right to request body or sheet metal to be replaced and
painted if it has any sharp edges or is not looking presentable to the sport.
- No
oil cooler may be mounted external to the bodywork. All oil cooler piping
shall be
routed under the bodywork, as safely away from driver as practical.
A) Oil coolers may be no further
forward than the centerline of the rear axle. The cooler must be horizontal and
flush with the cut out in the deck.
B) Oil coolers with a duct covering
them on both sides and the rear may be mounted further forward than the center
line of the rear axle.
C) Oil coolers may be mounted under
the hood ahead of the motor.
- Maximum
rear spoiler height, regardless of ride height, may not exceed 50. This
height will be randomly measured during an event. Cars not in compliance
will be excluded. It is suggested that manufactures do not make tall cars
that can only pass tech at low ride heights. The following racecar driver
must be able to see through for clear view of track ahead.
- All
cars must have a full steel windscreen (rock guard) of substantial material
with a maximum individual hole opening of 2 by
1 by 1/16 (no chicken wire or aluminum). Screen must cover entire
windshield area left to
right
across the cage and from top of cage down to hood or cowl. Clear lexan or safety glass windshields may be used for
additional protection if they are in the drivers line of sight. They must be
shatterproof and mounted behind the screen enabling driver to wipe them clean.
Any additional windshield must not obstruct the emergency exit of the driver.
BATTERY
- The
battery must be properly secured and must have top and terminals completely
covered by rubber.
- Modifieds
and Sportsman 12 volt only,14.3 volt maximum. No
step up transformer or any other devise to increase voltage allowed!
- A
battery shut-off switch is MANDATORY! Must be marked ON/OFF with bright
colored paint or a decal. The switch must be mounted on the left side inner
panel. (Above the steering post ) The knob must be outside the panel clearly
visible, and easily accessed by the safety crew. It must be wired to cut
off the HOT (pos.+ ) side.
BODY MATERIAL
- Only
aluminum or steel will be permitted for all inner and outer body panels.
- aximum of 4 vertical plastic
material extending below the metal body panel is permitted. The plastic
thickness shall be between .090 and .125 and an overlap of 2 to
secure to the doors/door extensions will be
permitted.
Doors/door extentions must still have a minimum of
six inches of ground clearance including plastic material
- The
overall dimensions of the doors and door extensions must meet the specifications.
- The
roof must be fiberglass only.
- Hood,
hood scoop, windshield cowl, right rear inside tire clearance cover and
front spoiler may be constructed of either fiberglass or aluminum.
- Only
CLEAR! lexan will be
permitted for the rear spoiler and the rear wing windows. NO STICKERS OR
WRITING WILL BE ALLOWED ON THEM!
ROOF
- The
roof must be centered from side to side on roll cage and also be centered
on frame (No offset bodies). Leading edge of roof must be fastened in a
stationary position a minimum of 33 and a maximum of 48 in
front of
rear axle centerline. The roof must be securely fastened at the back and on
both ends.
- Length
of the roof: maximum 60, minimum 48. Width of roof: maximum 52, minimum
48. It must display a turtleback style and shape with at least 3/4
belly front to rear and 3/4 side to side. The roof contour must fit FMPs roof template patterns left to right and front
to back (NO FLAT ROOFS).Front lip may not be more than 1/2. Side edges
may be no longer than 11/8 break.
- The
roof cannot change shape or location while racing.
- Overall
height (top of highest point): minimum 52, maximum 61, measured from the
ground. Maximum roof angle is 5 degrees.
- The
roof must be one piece fiberglass only and be a single ply, one contour inside
and out. No carbon fiber. Roll bars must be exposed. No vertical metal
used to mount roofs will be permitted covering the roll bars. The roof must
weigh a minimum of ten pounds.
FRONT DOOR POSTS
- Door
posts must be flat aluminum sheet metal Only!
They must go in a straight direct line from the roof to the doors. From a
side view they must be seen as a 2 dimension. They must be no wider than
2. They may be beadrolled or have a lip for
re-enforcement, but cant exceed a 3/8 maximum thickness at that area.
The material thickness used may be a minimum of .050 to a maximum of
.090 inches. Only a one-piece construction will be accepted! There will
be no Tolerance on these measurements. Door-posts must attach securely to
the metal roof support and doors! They may be bolted with a min. of (2)
3/16 bolts to the door bracket for the ease of fabrication!
- No lexan vent windows or excessive sheet metal will be
permitted in the vent corner where the post meets the door panel.
REAR WING WINDOWS
(DIRT STYLE BODIES)
- All
rear wing panels and windows must resemble a current OEM body style.
Their upper profile may not
protrude above a straight line drawn from the rear of the roof to a point 3
higher than the rear deck. There must be at least a 2 indent in the profile,
so as not to make this panel a fast back.
- The
maximum base length may not exceed 61. Left and right must be of the
same style and dimension! See example of Body Style in back of book.
- All
window styles must be nominally 160 square inches (suggested 10 tall X16
long), clear, smooth lexan with no bends or
breaks.
- No
writing or decals permitted on the wing windows.
- Rear
view of the wing window must go in a straight line from top of quarter panel
or bodyline to the roof, with a maximum gradual bow of 2 in the center of
wing window.
REAR WING WINDOW /
SIDE VIEW / REAR VIEW
BODY WIDTH AND GROUND CLEARANCE
- Body
width (measured anywhere along the body line, front or back): 68 maximum,
64 minimum.
- Minimum
chassis ground clearance 2 1/2.
- No
fan or ground-effects cars are permitted.
- No
rubber skirts, fins, or spoilers of any description are permitted under
the car.
- A 2
max air deflector is permitted in front of radiator to facilitate cooling.
DOOR PANELS
- Side
door panel: minimum 60, maximum 70 in front of centerline of the rear axle.
Doors, front door extensions and rear quarter panels must be flat and mounted
in a vertical position. They must remain flat with no louvers, bead rolls,
holes or protrusions from top to bottom. The exception being for rub rails.
Doors may have a max. of a 1 long lip at a 45
deg. outward angle 1/2 away from the sheet metal for the purpose of
reinforcement. This will be allowed at the top and bottom of the panels. All
outside sheet metal, door panels, door extensions, air dams, front nose
& hood fins must be the same shape, size, and angle on both sides of
the car.
Doors must match each other from
side for side. (Must be symmetrical)
- Bead
rolls around the outside perimeter of these panels and the wing windows
will be allowed. Bead roll edges must face towards center of chassis.
- Front
door extensions will be permitted up to 20 behind the front axle centerline.
- Front
door height must be a maximum of 38 and minimum of 30 from the ground
measured at 60 from rear axle centerline.
- Ground
clearance on the bottom of the doors must be a minimum of 6 and a maximum
of 12 from the ground.
- All
doors and rear quarter panels may have a maximum lip of 1 1/2 rounded at
90 degrees and facing inward only, on the top and the bottom.
- At
the top of the doors and rear quarter panels, a lip angled out at a maximum
of 45 deg., protruding away from the door no more than 1/2 and no more
than 1 in length before it bends inward for strength will be permitted.
REAR QUARTER PANELS
- Rear
quarter panels must match each other. (Must be symmetrical)
- Quarter
panels must be a maximum of 47 and a minimum of 40 from the ground at
the rear and continue in a straight line with top of door.
- A
fender flare, up to a maximum of 2 from the body may be used, but the overall
body width must still be maintained at a 68 maximum.
- Rear
quarter panels can extend back to 48 maximum at top and may incline down
to 44 maximum at bottom measured from center of rear axle to rear of car.
- Ground
clearance on rear quarter panels must be a minimum of 8 and a maximum of
16.
REAR SPOILER
- The
rear spoiler must be clear one piece lexan with
a maximum height of 5 from the rear deck and must not have any writing or
stickers on it.
- The
rear spoiler must be non-adjustable (no hinges or slides).
- No
metal Gurney tabs permitted. Lexan may have
brake (top only) for rigidity.
- Spoiler
maximum height from ground is not to exceed 50.
- A
maximum of four vertical supports may be used to fasten the spoiler to the
rear deck. These supports may not exceed 2 in vertical height and 10 in length.
REAR DECK
- Must
be a maximum height of 47 and minimum of 40 from the ground.
- Rear
deck lid (i.e. trunk lid) must be fully enclosed from quarter panel to quarter
panel and have a minimum height of 9 and a maximum of 14 in vertical
coverage behind the fuel tank.
- Left
and right rear trunk lids must be symmetrical in size and shape and show
no specific bulge or extension to cover fuel filler hose or apparatus within
the 9 to 14 of vertical coverage. This panel must completely cover
the fuel
cell, filler hoses, and vent lines.
- Older
cars with tall gas tanks may have a step in the deck to accommodate the
tank.
- The
fuel tank must be completely enclosed from the bottom of this panel to the
bottom of the fuel cell.
- The
fuel cell must also have both sides completely covered by sheet metal in
addition to the container it is enclosed in. Within these dimensions there
can be no openings.
- No
openings from top of fuel cell to bottom of trunk lid are permitted.
HOOD, NOSE, AND FRONT
SPOILER
- The
hood, nose, and front spoiler can be no wider than 36 and no narrower
than than 24.
- The
nose-piece must end at the front of the shock towers.
- The
spoiler must be separate.
- Shock
covers or deflectors may not be part of or riveted to the nose or spoiler
exceeding the 36 width maximum.
- Fabric
shock covers are permitted as long as they are used for the prevention of
dirt getting at the shock piston and not used for any aerodynamic
advantage.
- The
front spoiler must not extend any more than 20 in front of the front axle
centerline.
- The
front spoiler must be non-adjustable (no hinges or sliders).
- The
hood shall be considered from the front roll cage to on top and even with
the front of the radiator.
- The
nose piece shall start where hood ends and end at the shock towers!
- Both
hood and nose may have 2 maximum lip up on both sides following the
contour of the body. Both lips must be symmetrical!
- The
hood, nose, and spoiler may not overlap each others location on the
frame.
- Any
part of hood may not exceed 10 degrees nor can sheet metal have an opening
or extrusion between the hood and nose.
- The
hood must extend over the radiator and have complete sides.
- Front
spoiler may have 2 maximum lip up or down on both sides following the
contour of the spoiler, not exceeding the maximum width of 36 inches
HOOD SCOOP
- The
hood must be fully enclosed.
- Two
options of hood scoops mounted on top of the hood for the purpose of
enclosing the carburetor, or ram air will be permitted providing they meet
the following specifications.
- Both
style scoops may be made of fiberglass.
- Ram
air type scoop: Maximum length, 30 measured from rear motor plate to
front of hood scoop. Maximum width 18. The front vertical opening of the
scoop can be a maximum of 6 at the beginning of the scoop only. The
overall height of this scoop must maintain a minimum of 8 of vertical
vision for the driver. This measurement will be taken from a horizontal
line from the highest point of the hood scoop to the lowest point of the
front roll cage and/or roof. Hood scoop must be fastened to the hood and
completely enclose the carburetor and air filter.
- The
conventional no ram air scoop: a maximum of 25 is permitted from center
of the carburetor forward to end of scoop! The width permitted is a
maximum of 22. The height must maintain a minimum of 8 of vertical
vision from the top of the scoop to the lowest point under roof or roll
cage, and completely enclose the carburetor and air filter.
INTERIOR SHEET METAL
- Any
horizontal body support, other than the inner pods, whether in front or
rear must be a maximum of 1 deep by 1 thick tubing or flat stock only.
- No
inside or outside wings, spoilers, air foils, or wind deflectors are
permitted.
- No
double panels that create a wing effect will be permitted.
- A 1
maximum reinforced lip will be permitted on all lexan,
but all specified measurements must still be maintained.
- All
inner sheet metal used must completely cover areas from door to door,
quarter panel to quarter panel. No holes or openings are permitted in this
area.
- No
vertical fins, air dams, or fairings permitted on the sides or behind the
roll cage.
- Sheet
metal must be a flat single plane across the inside of the car with the
exception of two stiffening bead rolls or stiffening breaks for the
purpose of stiffening the wing only. Bead rolls or breaks may not exceed
1/8 in height and ½ inch in width.
- No
covered roll bars are permitted. Sheet metal that is one-piece and part of
a body panel bent around tubing (for purposes of protecting the driver or
finishing off panel) is not considered an aerodynamic advantage provided
it is not to excess.
- No
louvers or holes in the interior or exterior sheet metal are permitted
with the exception being the cooling of the radiator, engine, and oil
cooler.
- The
floor pan or underpan may not be any wider than
the frame, from front to back, and may not have any lips or fins facing
downward.
NUMBERS
- The
Track or series handicapper reserves the right to issue or change a cars
number to prevent duplication and maintain proper records.
- Team
cars must be clearly distinguishable from one another and use a different
number or letter.
- All
numbers and letters will be limited to three digits. If three digits are
used, two shall be primary numbers. Numbers are required on roof, nose,
rear deck and both doors.
- All
numbers and letters must be a minimum of 18 high on the roof and doors,
and 8 high for the rear deck and nose. All numbers and letters must be of
equal size and painted or decaled. If numbers 3, 6 or 9 are used
make sure that they are distinguishable.
- Nerf
bars must not block visibility of number.
DRIVER NAME
(Recommended)
- Letters
of drivers last name must be a minimum of six inches in height and be
positioned under, through or above number on both sides of the car
MODIFIED and
SPORTSMAN CHASSIS SPECIFICATIONS
FRAME
- Only
2 x 4 box frames are permitted between axle centers, front and rear. The
4 side must be vertical. Frame rails must be steel only. All 2 x 4 rails must
be .120 wall thickness only. At the discretion of the officials, it may
be necessary to drill a 3/16 hole in frame rail for inspection of
thickness. No other holes will be permitted. All tubing permitted for the
frame rails must be either 1 1/2 dia. x .095
wall or 1 3/4 x .095 wall.
- Frame
width is as follows: Front (at shock towers): 24 minimum, 35 maximum.
Rear: 26 minimum, 35 maximum. The minimum frame width at the rear roll
bar must be 26. All measurements are to be taken from theoutside
of the frame rails. These measurements shall be taken at both top and
bottom of frame at its longest length. Clips, sub-frames, etc. are considered
part of the frame.
- Minimum
length of the 2 x 4 frame rails must start at 14 in front of rear axle centerline
and extend to the front of the radiator. All kick up material must be same
specifications as the roll cage or frame material. Left and right frame rails
(both top and bottom rails) must be equi-distant
from the driveline centerline in a vertical plane along the total length
of frame. The only exceptions will be the lower left rear frame rail,
which will be permitted at 4 maximum indent for suspension clearance, and
the two upper frame rails in the engine compartment to allow for the
clearance of large cylinder heads.
- Titanium
or carbon fiber materials are not permitted on the chassis.
ROLL CAGE
- The
roll cage must be integral with the frame. All frames built in 2005 and thereafter
must have a manufacturers unique serial number
plate prominently attached by welding on the left side front roll cage
upright. The letters and or numbers shall not exceed 8 in number and be
1/2 in height.
- Only
round steel roll over bars may be used. Front and rear roll bars must be
connected at top in a cage type configuration. Two round horizontal side bars
on each side are mandatory. The top side bar must be a maximum of 20
below the top roll bar. Proper bracing and triangulation on front and rear
roll bars is required. All roll bar bracing must be a minimum of 1 1/2 diameter
by .095 wall thickness. A minimum of one diagonal bar across the top of
the roll cage is mandatory.
- The
rear main roll bar hoop must be a minimum of 26 measured across from
outside to outside of tubing and must maintain that measurement from the
bottom all the way to the top of the cage. Bottom of the rear roll bar
must be welded to the 2 x 4 frame (no outriggers). The front roll bar must
be measured and constructed the same way, except that the allowable taper
in the frame rules will govern the width dimension.
- Only
two roll bar diameters are permitted. Roll bars of 1 3/4 diameter require
a minimum of .095 wall thickness. Roll bars of 1 1/2 diameter require
.120 wall thickness.
SEAT
- Seat
and steering wheel must be centered in the frame.
- The
seat must be a maximum of 16 from the center of the rear end to back of
seat bottom..
- A
high back seat made completely from aluminum is mandatory. No fiberglass
or carbon fiber materials are permitted.
- Hans divice or its equal
recommended by FMP.
RADIATOR
- Only
one (1) radiator permitted and it must be centered squarely, not angled,
in front of motor in a vertical position.
- No
plastic or carbon fiber permitted.
- No
auxiliary cooling tanks or catch cans are permitted in drivers compartment.
ENGINE
- The
engine must be centered in the front of the chassis and placed in an upright
position.
- Engine
set back: minimum 56, maximum 66 with 1/2 absolute maximum tolerance.
Set back will be measured from the center of the front axle to the rear
machined bell housing surface of the engine.
TRANSMISSION
- Approved
North American or Canadian manufactured manual shift transmission only. No
automatics are permitted.
- No
overdrive or underdrive transmissions are
permitted.
- No
running through reduction gears, transmission
must be direct drive to rear end at racing speed.
4. Transmission must have forward, neutral, and
reverse gear in good working condition. From a neutral position with the motor
running, a car must be able to go forward and backward in a smooth manner.
5. Transmission
must bolt to the bellhousing.
- The
car must start and move under by its own power.
DRIVELINE
- No
chassis, driveline or suspension components made of carbon fiber are permitted.
- Two
universal joints per drive line maximum.
- A
drive line shield and 2 steel safety rings are mandatory (see safety rules
for detailed requirements).
REAR END
- Competition
rears only.
- No hyphoid type rears are permitted. (No 9 Ford type
rears allowed)
- No
limited slip type rear ends or hubs are permitted.
- No
lockers or two speed rears are permitted.
- Rear
end must have solid aluminum or steel spool only.
- Rear
spindles may be steel or aluminum only. If aluminum, rear must be a one-piece
tube and spindle with a minimum outside diameter of 2 7/8 and maximum
inside diameter of 2 1/2.
- Live
rear ends with aluminum or steel axles are permitted.
- The
rear end or chassis must not be offset any more than 4 from center of the
inside tire width! This will be measured from the inside of the left rear
tire to the inside of the right rear tire, at axle height.
FRONT END
- The
front axle must be straight, one-piece steel tubing only with no camber adjustments.
- No
split axle or dropped axle permitted.
- All
brackets on the front axle must be bolted or welded (no bird cages or slides).
- Modified
type front spindles only.
- It
is recommended that bearing shafts be made of steel.
- Chassis
may not be offset any more than 4 from center of inside tire width, measured
from the inside of the left front tire to the inside of the right front tire
at axle height.
- Front
wheels must be fully exposed. No fenders are permitted.
WHEELBASE AND TREAD
- Wheelbase:
minimum 106, maximum 110. This measurement will be taken from the center
of the rear axle to the center of the front axle, for both left and right
sides with a maximum tolerance of 1/2.
- Tread
width Modified and 358-Modified: front - maximum 86, minimum 74.
Rear tread,
maximum 86, minimum 80. Tread width Sportsman:
CHASSIS GROUND
CLEARANCE
- There
must be a minimum of 2 1/2 ground clearance from the chassis at it lowest
point.
- No
metal, lexan, or rubber air dams, fins, spoilers
or skirts are permitted under the car.
- No
ground effects cars are permitted.
SUSPENSION
- No
independent suspensions front or rear.
- No
A frames or ball joints may be utilized for steering axis (kingpin
only).
- No
four wheel steering permitted that is actuated by steering wheel.
- All
suspension systems must be mechanical with no form of hydraulic, air, electrical,
radio, or computer assistance for adjustments, in or out of cockpit
allowed!
- No
form of traction control is permitted. Braking system included!
- With
the exception of brake bias and the rear panhard,
no other form of cockpit adjustment is permitted.
Sportsman: May not have rear panhard cockpit adjustment.
SPRINGS
- Any
form will be permitted (torsion bars, coil-overs,
leaf springs, etc.).
- No
carbon fiber or titanium springs are permitted.
SHOCKS
- Only
one shock per wheel.
- Shocks
may not be externally adjustable.
- External
reservoirs are not permitted.
- Manufacturers
must submit shocks for approval 2 weeks prior to being raced.
- All
shocks used MUST be freely available to all competitors. Failure to easily
purchase a type of shock could result in those shocks not being permitted.
BRAKES
- All
cars must have four wheel hydraulic brakes in good working condition.
- No
carbon fiber, carbon, titanium, ceramic or aluminum pads or rotors are permitted.
- On
live rear axles, one inboard and one outboard brake assembly is permitted.
- Brake
tests may be conducted throughout the year.
- Brake
bias may be cockpit adjustable.
FRONT BUMPER
- Must
be made from round steel tubing only, with a minimum diameter of 1 1/4 by
.095 wall thickness for main bumper and all
bracing.
- It
must consist of two rails, an upper and lower and at least 1or 2 vertical braces
equally spaced. These rails must have four sockets or supports attached to
the frame.
- The
four tubes that support the bumper from the four frame sockets must be horizontal.
These rails must also be a minimum of 6 apart and a maximum of 12
measured from top to bottom and maintain that measurement for a minimum
width of 24 or a maximum width of 30. It must also have an 18 center
measured from the ground up to the middle of the bumper.
- The
front bumper may not extend more than 24 in front of front axle center centerline.
- No
V-shaped bumpers, crash area must be flat and vertical for the full width of
bumper.
- The
bumper must have all rounded ends and no sharp edges.
- The
end bracing tubes of the bumper must be angled in such a way as to prevent
the bumper interlocking with another cars bumper.
REAR BUMPER
- The
rear bumper must be made of round steel tubing, with a minimum diameter of
1 1/2 by .095 wall thickness for main bumper and all bracing.
- It
must consist of two rails, an upper and lower, which must have four
sockets and horizontal support bars attaching it to the frame. These rails
must also be a minimum of 10 apart and a maximum of 16 measured from top
to bottom and maintain that measurement for a minimum width of 64 or a
maximum width of 86.
- The
rear bumper or any side bars cannot extend past the outside of tire sidewalls
on both sides. It also must have an 18 center measured from the ground up
to middle of bumper.
- The
rear bumper may not exceed 52 back of the rear axle centerline.
- No
V-shaped bumpers, crash area must be flat and vertical for the full width of
bumper.
- Bumper
must have all rounded ends and no sharp edges.
RUB RAILS
- The
rub rails must be made of round steel tubing, with a minimum diameter of 1
1/2 by .095 wall thickness.
- All
bracing must also be a minimum of 1 1/2 outside diameter by .095 wall thickness.
- Maximum
wall thickness must be .095 with no solid bars or ballast added inside.
- Rub
rails must be outside of body panels but may not exceed the outside edge
of the tires. The exception is the left rub rail only, which may extend an
absolute maximum of 2 outside the left rear tire sidewall.
- Rub
rail ends must be rounded with no sharp edges and bent at a gradual 90
degrees and must protrude a minimum of 6 back in past the body.
- Rub
rails must be a minimum of 50 long, socket to socket.
BUMPERS AND RUB RAILS
- 5/16attachment
bolts with nyloc nuts or FMP approved quick
release solid pins are the only permitted fasteners. NO COTTER PINS!
- All
3 rub rail sockets must be pinned or bolted.
- Front
and rear rub rails must have a 360 deg. sleeve 3/8 wide x .095 wall min.
welded to the rub rail tube butted up against the support socket to prevent
pins from shearing.
FUEL TANK
- One
SFI 28.1/2 or FT3 fuel cell with a maximum of 24.5 US. gallons is mandatory (used for gasoline only).
- Fuel
tank height: 12 minimum from the ground to the bottom of the tank.
- Tank
must be centered inside of the frame rails and be rectangular or square in
shape on all sides for measuring capacity. The capacity will be measured
as a maximum of 5660 cubic inches using the formula with all
sizes of
the metal container measured externally in inches: Length minus 1/2 x width
minus 1/2 x depth minus 1/2= no greater than 5660CI.
- Tank
panels may not be bowed out or bellied to increase capacity. No tolerance.
- Tanks
may not be altered in any way to increase capacity. No large or long fuel
lines, oversize filter housings or fuel coolers or other to increase fuel capacity.
- Cars
teched before the event will have the
opportunity to correct any fuel capacity infraction, time permitting. Cars
found with illegal fuel capacity after an event will be disqualified and
placed last in that event. All legal cars will move up in position for any
applicable points and prize money.
- Fuel
tank must be fully encased in a steel container with a minimum thickness
of 20 gauge. An optional aluminum container may
be used with a minimum thickness of .060.
- Fuel
tank must be fully foamed with just a minimal cut-out for filler. Cut-out may
be no more than 6 wide x 10 long x 7 deep.
- Fuel
lines must siphon from top only.
(19)
- No
fuel lines bigger than #10 are permitted.
- No
auxiliary tanks are permitted.
- No
fuel filters with more than 1/2 quart capacity are permitted.
- Fuel
tank vent line must have an inline one-way valve for the prevention of fuel
spillage.
- Only
one carburetor fuel log will be permitted and is limited to a maximum outside
diameter of 1.
- SUNOCO
is the exclusive race fuel of FMP and is the only race fuel permitted for
use in FMP cars. Sunoco Race Fuels decals are required to be displayed on
each side of all race cars. No other fuel company logos are permitted to
be displayed anywhere on the race car or drivers uniform.
MUFFLERS AND EXHAUST
SYSTEM
- Each
car must have one unaltered muffler per bank.
- Mounting
position front to back will be optional however the exhaust must exit past
the driver.
- Each
muffler must have a tail pipe no less than 10 long measured off the back
of the muffler and must direct the exhaust to the rear of the car only so as
to disturb as little dust as possible.
- No
exhaust pipe may face outside the car.
- Modified
- any manufacturer of exhaust header is permitted, but header material is
limited to steel or stainless steel from the 300 series.
- Approved mufflers mandatory
- Header
collector extension pipe and tail pipe must not be inserted past the muffler
inlet or outlet flange.
BALLAST WEIGHT
- Any
ballast weight used must be mounted within the vertical planes formed by the
frame rails, must be securely fastened, and must remain stationary while racing.
- Weight
may be added prior to the event or time trial.
- No
weight pack may exceed 75 pounds.
- All
weight packs must have a minimum of two 1/2 securing bolts/studs of grade
5 or higher. These bolts/studs must be securely anchored to the frame by a
suitable clamp.
- No
bolts / studs welded to the frame will be permitted.
- Clamp
around weights are permitted.
- All
weights must be painted white and carry the car number in a legible fashion.
White duct tape marked with a wide black sharpie is acceptable for a one
race grace period only.
- No
ballast weight may be mounted to roll cage above rear deck.
BATTERY
- Modified
and Sportsman: One American Passenger Car sized battery up to 12 volts is
permitted. The battery voltage must not measure more than 14.3 volts.
- Battery must be mounted inside the frame rails.
- NO
step up transformer or any other devise that increases the voltage is
allowed.
WHEELS
- Modified:
Only aluminum wheels are permitted. No magnesium, steel, or carbon fiber
is permitted. Bleed-off valves are permitted.
- Sportsman:
One-piece steel wheels with a maximum width of 14 and diameter 15.
Aluminum wheels allowed with restrictions. See weights below.
- Rim
width restricted to 14 maximum. This is measured from inside of left bead
to inside of right bead on the wheel. Wheel diameter limited to 15 only.
- Beadlocks are permitted. Any wheel or beadlock that is used must maintain a minimum diameter
of 11 hole inside beadlock and wheel. Beadlocks may be outside only,
- Foam
inserts or corrugated plastic (with approved installation) may be
permitted when track conditions warrant. No unsafe wheel covers are
permitted. Wheel covers that are fastened by way of dzus
(or similar type fasteners) are permitted.
TIRES
1. American Racers, only SD 48 or 50 allowed on Right Rear and only
SD 44 on the left rear location, an option of SD 33 minimal softness or harder
may be used on the front.
2. Left rear tire: American Racers (Must be stamped) SD44 (27.5x11).
3. Right rear tire: American
Racers (Must be stamped) SD 48, (29x11), (option SD 50).
4. Left & Right front tires:
American Racers (Must be stamped) /SD 33 or harder.
5. Buffing, cutting, grooving, or siping
will be allowed. No tires chemically altered. Tires will be checked with durometer and sniffer on scales
after feature events. Tire markings from
the manufacturer can not be altered.
MINIMUM WEIGHTS: Five
Mile Point Speedway
Modified Division
Minimum
Weights, including driver- no fuel added:
1. Under 361 cu. in. on gas: Maximum
12:1 compression 2400 lbs (tsp)
2. Under 361 cu. in. on alcohol with 650 carburetor
2400 lbs (tsp)
3. Under 361 cu. in. on alcohol with 750 carburetor
2500 lbs (tsp)
4. Big block or small block over 361 cu.in.,
Gasoline only - 2500 lbs (tsp)
5. Fuel cell mandatory - 36 gal. maximum.
6. Track scales are official and no protests are allowed.
MINIMUM WEIGHTS: Five
Mile Point Speedway
Sportsman Division
Minimum
Weights, including driver- no fuel added:
Crate Engine and
Ported Cast Iron Engines: MINIMUM WEIGHTS
- GM
CRATE ENGINE or open head engine with
rpm rev limiter and aluminum wheels - 2400lbs. (tsp)
- WITH
OPEN HEADS AS SPECIFIED - 2500lbs (tsp) No aluminum wheels allowed.
- Track
scale weight will be final.
MODIFIED DIVISION ENGINE SPECIFICATIONS
BIG BLOCK-BIG SMALL
BLOCK (0VER 358 CI) ENGINE SPECIFICATIONS
(Five Mile Point Speedway allows various
engine combinations. This is a guideline for the more popular. The 10-1 Grandview style motors
are not included other than weights.)
ENGINE
- Only
stock OEM American long block (in length) manufactured V-8 engines (GM,
Ford, or Chrysler) are permitted.
- Aftermarket
Dart and Merlin cast iron blocks are permitted.
- No
aluminum blocks are permitted.
- Only
normally aspirated engines are permitted.
- Maximum
displacement of 467 cu. in. 396 cu. in will be the minimum displacement
permitted! A 10 cubic inch max. limit will be
allowed for wear.
- No reverse
rotation engines.
CARBURETION
- Engine
limited to one four barrel carburetor from an established American
carburetor manufacturer. A manufacturer, as defined by FMP, as a builder
that produces a minimum of 600 units per year.
- Carburetor
not to exceed 4 venturies, 650 or 750 maxium and must pass no go gauge. (BB excluded)
- No
fuel injection, no nitrous oxide injection, no turbo chargers, or
superchargers are permitted.
- Holley
hp carbs allowed.
- No
fuel or air may enter by any means other than stock operation of the
carburetor.
- No
in-line venturi carburetors.
INTAKE MANIFOLD
- Optional
as to design or manufacturer, but the manifold must allow for the mounting
of only one 4 barrel carburetor.
- Must
be cast iron or cast aluminum only.
- Porting
is permitted.
CYLINDER HEADS
- Optional
as to design or manufacturer but must be made of cast aluminum or cast
iron only.
- Any
form of porting is permitted.
- Valve
sizes are optional.
- Titanium
valves and retainers are permitted.
- No
hollow stem valves or liquid cooled valves are permitted.
- Only
2 valves per cylinder are permitted.
- Only
one spark plug per cylinder.
CAMSHAFT
- Optional
as to design or manufacturer but camshaft must be in block in stock
location.
- Chain
or belt drives are permitted.
- No
overhead cams are permitted.
PISTONS / RODS /
CRANKSHAFTS
- Only
aluminum pistons, with no coatings of any kind are permitted.
- Any
steel or cast iron crankshaft is permitted.
- Any
design, length, or make of steel rods are permitted.
- No
titanium crankshafts or rods are permitted.
IGNITION
- Any
kind of ignition is permitted, as long as it is mechanically driven in the
stock position.
- No
crank trigger