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7000 SS Rules
Engine block must remain in original
location at located by manufacturer
Only engines considered legal to be used
in Super Stock division must be available in two
wheel drive farm tractors.
The stock transmission housing or
manufacturer’s replacement and the stock final drive housing
or
Manufacturer’s replacement.
Allow tractors with cast tub (belly( type
frame (i.e., Oliver, Cockshutt, White) to remove complete
Frame from front of transmission
housing. Engine and clutch housing to remain in original
location and
Mounted solid as intended by original
manufacturer.
The OEM engine block of given brand to
remain consistent with that brand of transmission and rear
Housing as well as sheet metal. It
cannot be modified externally, except for normal repair or for
Mounting of fuel injection pumps.
Internal webbing and water jacket must
remain intact with provisions to rebore engine block be
Provided.
An external hold down device is allowed
to hold head to block. This device connects top of head to
bottom of block, and must remain behind side shields.
This device does not replace the safety
cable, with must remain in place.
All engines must be secured and held
rigid to OEM chassis. Engine cannot move independent of
Rear end/transmission housing.
The chassis and frame must remain stock
from the rear of the engine block to the rear of the
Tractor.
The grill may be altered to allow air
intake, but not totally removed.
The clutch housing, transmission case,
rear end housing and axle housing must be OEM, with no
Aluminum replacements.
No auxiliary internal combustion engines
are allowed onboard to drive pumps, accessories, etc.
One piece engine main cap bearings
allowed. One piece main cap not considered a girdle.
We will allow component tractors at Super
Stock competition under the following criteria:
·
Must install an aftermarket frame with an
SFI-6.2 or 6.3 bell housing to replace the
Original clutch
housing. Must also install an aftermarket transmission and
rear end to replace the original equipment transmission and
rear end/final drive housing. (If larger than 11Inch clutch is
used, refer to the industrial, marine clutch rules listed in
General Rules)
No cast iron
Ag-type transmission or rear end components allowed.
·
Primary (and secondary, if used) drawbar and
roll cage, with five point restraint harness. Must
be part of the
aftermarket frame structure.
·
Engine block of given brand to remain consistent
with that brand of sheet metal. The engine
Block cannot be
modified externally from OEM configuration, except for normal
repair or for
Mounting of
fuel injection pumps.
·
Engine location on component Super Stock
tractors: centerline of the crankshaft may not be below the
centerline of the rear axle and must be parallel within two
degrees in relationship to the ground. (Tow degrees equals
7/16th inch per foot. This equal approximately four
inches of fall from center of rear axle to the 114inch
wheelbase point. This is to be measured with tire, hitch and
weight in ready to pull position.)
·
All engines component Super Stock tractors to be
mounted no farther forward than 60 inches from the centerline
of the rear axle to rear of the engine block.
·
Crankshaft centerline to be between top and
bottom rail of frame. Bottom of frame rail
May be no more
than six inches below centerline of crankshaft from rear of
engine block.
·
Component tractors are allowed to use any
agricultural type engine that conforms to sheet metal and
cubic inch limits.
·
All tube ladder type frames must be covered on
outside with steel or aluminum 0.060 thick and run in the same
plain as the crankshaft.
·
Appearance to remain stock of given brand and
model.
·
Driveline shielding sane as Modified tractor
rules.
·
All component tractors can run a maximum of
114inch wheelbase, either a maximum overall of 13 feet from
center of rear axle to forward most point.
Non-component Super Stock tractors are
required to have an SFI Spec 4.2 bell housing blanket.
Only mechanically activated clutches are
permitted.
Tractor must have hood and grill in place
as intended by the manufacturer.
Sheet metal may be upgrade to present
manufacturer .
Sheet metal upgrade may not cross
original manufacturer’s lines. For example, Case to IH, or
Oliver to Minneapolis Moline.
Sheet metal to be stock length and in
stock location.
Tractor must retain stock appearance.
The distance from the center of the rear
axles to that part of the hood that s farthest must be the
same length as the model of the ungraded sheet metal.
Wheelbase rule will apply according to
the original chassis, not to the model of the ungraded sheet
metal.
Maximum of 114inch wheelbase unless
originally produced with longer wheelbase, in which case stock
length must remain. Maximum length of 13 feet from center of
rear wheel to forward most portion.
Super Stock class is limited to 505cid.
Only tow valve per cylinder must be parallel with each other
and parallel within 15 degrees of
cylinder wall. OEM canted valve heads allowed. No overhead
cams allowed.
Turbocharged engines are required to have
one cable that must surround the engine block and head. This
cable must be placed between first and second cylinder through
exhaust manifold port area.
*Cable must be a minimum of
3/8inch thickness.
*Cable must gave a minimum of
(2) clamps at the splice.
*Cable must have
approximately 4 inches of slack.
*Multiple head engines
required one cable per head.
Super Stocks are limited to (3) pressure
stages, with a maximum of (4) turbo charger.
Super Stock tractors are limited to (2)
valves per cylinder.
Diesel Super Stock division water
injection and/or intercooler allowed.
Metal deflection shield between driver
and engine from top of hood to top of torque tube or trans
housing or clutch housing from side shield to side shield.
This also serves as a flash fire shield.
Tractor must have either:
*Safety tie bars mounted to
rear axle housing with at least (4) axle housing bolts and
extending
Forward of flywheel
area and fastened to side of block or main frame with at least
(2) 5/8inch
Bolts. Or
*A one piece frame extending
from front of tractor to rear axle housing mounting bolts.
Tie bars or frame must be of sufficient
strength to support weight of tractor with the bolts used to
Split the tractor removed.
Safety blankets must be on the inside of
the tie-bar and the tie bar must be fastened forward of the
rear of the engine block.
All ether bottles (or starting aids) must
be placed outside of engine compartment.
Super Stock tractors that require tools
for the removal of side shields must be equipped with an
onboard fire control system. Onboard system nozzles must be in
the engine compartment.
Tires : 30.5 x 32 with a maximum of 210
inch circumference, when inflated to 10psi. Tread width not to
Exceed 32 inches. Width determined by
manufacturer’s size.
Vehicle must have a complete firewall
with no holes except for controls. Holes not to exceed ½ inch
larger that control.
Super Stock tractors utilizing onboard
fire extinguishing system must place one nozzle on each side
Of the engine, inside the engine
compartment. Not to be attached to the sheet metal.
All safety rules in General Rules apply
to Super Stock Class.
Must have roll cage SF1 47.1 or SF1 47.2
or equivalent to those specs.
Any 4 turbocharger Diesel tractor may
compete at 6500 lbs above rules apply.
Any 3 turbocharger Diesel tractor may
compete at 7000lbs. above rules apply.
Any 3 turbocharger Alcohol tractor may
compete at 6500lbs above rules apply.
Any 2 turbocharger Alcohol tractor may
compete at 7000lbs above rules apply.
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