Missouri truck Pulling !!!
10-13-2006, 11:12 AM
#31
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Location: Backwoods of Missouri CSA
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driveshaft loops per DHRA
( All trucks must have at least six inch wide u-joint shields around the rear u-joint constructed of at least 1/4 inch steel or 3/8 inch aluminum that will safely contain the u-joint and the end of the rear shaft. All shields must be securely mounted to the vehicle. Any front shaft u-joint that is visible from the side of the truck must be shielded to contain the u-joint and the end of the shaft.)
That's a lot metal to hang under the truck.
( All trucks must have at least six inch wide u-joint shields around the rear u-joint constructed of at least 1/4 inch steel or 3/8 inch aluminum that will safely contain the u-joint and the end of the rear shaft. All shields must be securely mounted to the vehicle. Any front shaft u-joint that is visible from the side of the truck must be shielded to contain the u-joint and the end of the shaft.)
That's a lot metal to hang under the truck.
10-13-2006, 12:02 PM
#32
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Driveshaft loops should be a must! They are for safety yes but also if you break a joint they help with breaking other stuff as well they are well worth it and they dont weight that much...
10-13-2006, 12:12 PM
#33
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For once a year pullers at local pulls, there could be a one time hook fee to cover insurance. Then like CarcajouCummins said, if they get hooked , they would then have to follow the rule book to become legal. As far as the air shut off, i've talked to serveral gas truck pullers and tractor pullers and they want them to have one in order to pull with MMTTPA. We have to suit them too, in order to have them vote it in as a class in 2007. I do not believe there are enough trucks for both a work stock and street stock diesel class.
10-13-2006, 12:51 PM
#34
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I agree we dont have enough to have two classes... Dhra rules if used should be enforced and if not met you arent pulling simple as that... But once again im stressing a RPM pick up!!!!
10-13-2006, 07:09 PM
#36
DHRA doesn't expect newer pullers to have driveshaft loops, but they do encourage them and especially hate it when a driveshaft falls and delays the event. Air shut off for Street trucks??? 90% of the pullers wouldn't mess up their high $$ street intake system to retrofit the shutoff, after all in Missouri they have to have a State Vehicle Safety Inspection and an insurance card to get their vehicle plates................. If you must satisfy the Association's insurance company, just require the puller to show their registration and insurance card that is current to the competiton truck. Street Class should be discounted for their personal insurance. The Street Diesel class, if, limited to 4500rpm and a 2.8" turbo, is not the liability that the gas guys want us to believe.
10-16-2006, 02:25 PM
#40
Registered User
Just so we all know I copied these over, these are the '06 rules.
Version 2.6.1; Last changed 12/28/05
Hot Category
OVERVIEW
Street Diesel
The Street Diesel (SD) class is designed for streetable pickup trucks (full-bodied diesel pickup
trucks). Valid DOT registration and license plates are mandatory. The vehicle must be four-wheel
drive.
Designations:
SD followed by competition number.
Weight breaks:
8000 lbs. Weight is with driver.
REGULATIONS
Ballast:
Ballast is permitted. Hanging weights may not extend more than 60 inches from the centerline of
the front axle.
Batteries:
The batteries must be securely mounted. They may not be located in the driver compartment.
Body:
The body must be the OEM truck body, including the full bed floor. The body must retain full
sheet metal. Metal after-market hoods are permitted. Fiberglass is prohibited.
Brakes:
Four-wheel hydraulic brakes are mandatory.
Chassis:
The OEM chassis is mandatory. The engine must be in the OEM location for the body used. The
vehicle must retain the full OEM chassis. Wheel tubs, back-half conversions, tube chassis, etc.,
are prohibited.
Cooling System:
Radiators must be in the stock location and be of at least stock size.
Credentials:
All drivers must have a valid state driver’s license.
Driveline:
An OEM transmission and transfer case is mandatory. It must have been an option on a one-ton or
smaller pickup.
Driver Restraint System:
The OEM restraint system is mandatory and must be worn.
Driveshaft Loops:
All trucks must have at least six inch wide u-joint shields around the rear u-joint constructed of at
least 1/4 inch steel or 3/8 inch aluminum that will safely contain the u-joint and the end of the rear
shaft. All shields must be securely mounted to the vehicle. Any front shaft u-joint that is visible
from the side of the truck must be shielded to contain the u-joint and the end of the shaft.
Engine:
The engine block must have been available as a factory option on one-ton or smaller pickup
trucks.
Exhaust:
All vehicles must be equipped to direct exhaust upward or downward. The exhaust must exit
rearward of the driver's compartment. Stacks exiting through the hood or fenderwell are
prohibited. Two 3/8 inch diameter bolts must be placed through the exhaust pipe in a cross pattern
within one inch of each other as close to the turbo as is practical.
Fire Extinguisher System:
A fire extinguisher system is permitted. It must be securely mounted.
Firewall:
The complete OEM firewall is mandatory.
Floor:
The complete OEM floor pan is mandatory.
Fuel:
The fuel must be pump #1/#2 diesel only. Soy/Biodiesel fuel is permitted. Off-road diesel fuel is
prohibited.
Fuel Injection Pump:
The fuel injection pump is limited to a stock-appearing, OEM engine make-specific pump only.
Fuel System:
The OEM fuel tank is mandatory and must be used. Racing fuel cells are prohibited and must be
removed from the vehicle.
Hitch:
The hitch must be a "Reese"-style hitch; reinforcements are permitted. Trick hitches are
prohibited. The hooking point must be the rear-most point on the vehicle and must be rearward of
the stock location of the tailgate. The hitch must be horizontal to the ground and stationary in all
directions. Bumpers may be notched or removed. The hitch's height from the ground may not
exceed 26 inches. The hooking point must have a minimum 3.00 inch inside diameter opening for
the sled hook. The hooking point will be measured to the center of the clevis loop.
Interior:
A complete interior, including dashboard, door panels, headliner, etc., is mandatory. Two
matching front seats are mandatory. Aftermarket seats are permitted; they must be fully
upholstered. All factory controls (lights, signals, horn, windows, wipers, etc.) must be retained
and be operative.
Nitrous Oxide:
Nitrous oxide is prohibited. No other oxygen extenders are allowed. All system components must
be removed from the truck.
Propane:
Propane is prohibited. All system components must be removed from the truck.
Rear End:
Non-OEM rear-end housings are prohibited. The rear end must have been an option on a one-ton
or smaller pick up. Rear axle bolts must be covered by a cap or shield.
Steering:
The vehicle must retain the full, original OEM steering gear.
Street Equipment:
Complete headlight and taillight assemblies (all) are mandatory and must be operative. Complete
OEM windshield and windows are mandatory. Windows must be operative per factory
specifications; that is, they must open and close via OEM electrical or mechanical means.
Suspension, Front:
The upper mounting point for strut assemblies must be in the factory location. Adjustable
caster/camber pillow ball mounts are permitted. The lower control arm may be strengthened
provided factory-mounting points to chassis are maintained. The lower mounting point for the
strut assembly may be modified for improved caster or camber. Strut tower braces, lower tie bars,
sway bars, and limit straps are permitted. Traction bars and devices are permitted. The final
decision rests with the DHRA Technical Department.
Suspension, Rear:
An OEM-style suspension is mandatory. Traction bars and devices are permitted; they must be
bolt-on only; welds are permitted for attachment to frame or axle housing. Control arms may be
strengthened or replaced, provided all original mounting points are retained. Strut tower braces,
lower tie bars, sway bars, limit straps, and camber kits are permitted. The rear suspension must
maintain a minimum shock travel of one inch. All rear suspensions must use at least one working
shock absorber per wheel.
Tires:
The tires must be DOT street tires. Cut tires are prohibited.
Tow Vehicles:
Tow vehicles are prohibited.
Transfer Case:
Non-OEM transfer cases are prohibited. It must have been an option on a one-ton or smaller pick
up truck.
Transmission, Automatic:
Non-OEM transmissions are prohibited. Aftermarket torque converters, valve bodies and internal
components are permitted. Transmission brakes are prohibited. Any non-OEM floor-mounted
automatic transmission shifter must be equipped with a spring-loaded positive reverse lockout
device to prevent the shifter from accidentally being put into reverse gear. A functional neutral
safety switch is mandatory. All transmission lines must be metallic or high-pressure-type hose.
All vehicles with engines running 4500 RPM or more and using an automatic transmission must
be equipped with a transmission shield meeting SFI Spec 4.1 and must be labeled accordingly. A
blanket-type shield is permitted; it must be appropriately labeled as meeting SFI Spec 4.1 and it
must extend from the rear of the block to the front of tailhousing with a minimum six inch
overlap where it is fastened. All non-blanket-type shields must incorporate two (or one, per
manufacturer’s instructions) 3/4 inch by 1/8 inch straps that bolt to the shield on each side and
pass under the transmission pan unless the transmission pan is labeled as meeting SFI Spec 4.1.
All vehicles with engines running 4500 RPM or more and using an automatic transmission must
be equipped with a flex plate meeting SFI Spec 29.1 and be covered by a flex plate shield meeting
SFI Spec 30.1.
Transmission, Manual:
Non-OEM transmissions are prohibited. Aftermarket internal components are permitted. A clutch
meeting minimum SFI Spec 1.1 or 1.2 is mandatory on all vehicles with engines running 4500
RPM or more. All manual transmissions must be clutch assisted. Sequential shifters are
prohibited. All vehicles with engines running 4500 RPM or more and equipped with a manual
transmission must have a flywheel shield labeled as meeting minimum SFI Spec 6.3 or greater.
Applications for which an SFI Spec flywheel shield is not available may use a properly attached
SFI 4.1 or 4.2 blanket that completely covers the bellhousing; it must be attached to the block and
extend rearward to the transmission with a minimum six inch overlap where it is fastened.
Turbocharger:
The vehicle is limited to a single turbocharger; the inducer bore on the compressor housing may
be no larger than 2.8 inches measured at the smallest diameter area of the compressor wheel. A
bushing may be used to downsize the compressor housing ahead of the wheel. If a bushing is
used, it must be round, at least 3/4 inch long, mounted within 0.050 inch of the compressor wheel,
and the inside diameter of the bushing may not exceed the 2.8 inch limit. If you have any
questions regarding the construction of a bushing, contact DHRA Technical Services before the
season starts. The inlet will be measured using a 2.85 inch plug. All provisions allowing air to the
wheel other than via the bore are prohibited.
Water Injection:
Water injection is prohibited. All system components must be removed from the truck.
Wheelbase:
The vehicle must retain the original factory wheelbase and track width.
Version 2.6.1; Last changed 12/28/05
Hot Category
OVERVIEW
Street Diesel
The Street Diesel (SD) class is designed for streetable pickup trucks (full-bodied diesel pickup
trucks). Valid DOT registration and license plates are mandatory. The vehicle must be four-wheel
drive.
Designations:
SD followed by competition number.
Weight breaks:
8000 lbs. Weight is with driver.
REGULATIONS
Ballast:
Ballast is permitted. Hanging weights may not extend more than 60 inches from the centerline of
the front axle.
Batteries:
The batteries must be securely mounted. They may not be located in the driver compartment.
Body:
The body must be the OEM truck body, including the full bed floor. The body must retain full
sheet metal. Metal after-market hoods are permitted. Fiberglass is prohibited.
Brakes:
Four-wheel hydraulic brakes are mandatory.
Chassis:
The OEM chassis is mandatory. The engine must be in the OEM location for the body used. The
vehicle must retain the full OEM chassis. Wheel tubs, back-half conversions, tube chassis, etc.,
are prohibited.
Cooling System:
Radiators must be in the stock location and be of at least stock size.
Credentials:
All drivers must have a valid state driver’s license.
Driveline:
An OEM transmission and transfer case is mandatory. It must have been an option on a one-ton or
smaller pickup.
Driver Restraint System:
The OEM restraint system is mandatory and must be worn.
Driveshaft Loops:
All trucks must have at least six inch wide u-joint shields around the rear u-joint constructed of at
least 1/4 inch steel or 3/8 inch aluminum that will safely contain the u-joint and the end of the rear
shaft. All shields must be securely mounted to the vehicle. Any front shaft u-joint that is visible
from the side of the truck must be shielded to contain the u-joint and the end of the shaft.
Engine:
The engine block must have been available as a factory option on one-ton or smaller pickup
trucks.
Exhaust:
All vehicles must be equipped to direct exhaust upward or downward. The exhaust must exit
rearward of the driver's compartment. Stacks exiting through the hood or fenderwell are
prohibited. Two 3/8 inch diameter bolts must be placed through the exhaust pipe in a cross pattern
within one inch of each other as close to the turbo as is practical.
Fire Extinguisher System:
A fire extinguisher system is permitted. It must be securely mounted.
Firewall:
The complete OEM firewall is mandatory.
Floor:
The complete OEM floor pan is mandatory.
Fuel:
The fuel must be pump #1/#2 diesel only. Soy/Biodiesel fuel is permitted. Off-road diesel fuel is
prohibited.
Fuel Injection Pump:
The fuel injection pump is limited to a stock-appearing, OEM engine make-specific pump only.
Fuel System:
The OEM fuel tank is mandatory and must be used. Racing fuel cells are prohibited and must be
removed from the vehicle.
Hitch:
The hitch must be a "Reese"-style hitch; reinforcements are permitted. Trick hitches are
prohibited. The hooking point must be the rear-most point on the vehicle and must be rearward of
the stock location of the tailgate. The hitch must be horizontal to the ground and stationary in all
directions. Bumpers may be notched or removed. The hitch's height from the ground may not
exceed 26 inches. The hooking point must have a minimum 3.00 inch inside diameter opening for
the sled hook. The hooking point will be measured to the center of the clevis loop.
Interior:
A complete interior, including dashboard, door panels, headliner, etc., is mandatory. Two
matching front seats are mandatory. Aftermarket seats are permitted; they must be fully
upholstered. All factory controls (lights, signals, horn, windows, wipers, etc.) must be retained
and be operative.
Nitrous Oxide:
Nitrous oxide is prohibited. No other oxygen extenders are allowed. All system components must
be removed from the truck.
Propane:
Propane is prohibited. All system components must be removed from the truck.
Rear End:
Non-OEM rear-end housings are prohibited. The rear end must have been an option on a one-ton
or smaller pick up. Rear axle bolts must be covered by a cap or shield.
Steering:
The vehicle must retain the full, original OEM steering gear.
Street Equipment:
Complete headlight and taillight assemblies (all) are mandatory and must be operative. Complete
OEM windshield and windows are mandatory. Windows must be operative per factory
specifications; that is, they must open and close via OEM electrical or mechanical means.
Suspension, Front:
The upper mounting point for strut assemblies must be in the factory location. Adjustable
caster/camber pillow ball mounts are permitted. The lower control arm may be strengthened
provided factory-mounting points to chassis are maintained. The lower mounting point for the
strut assembly may be modified for improved caster or camber. Strut tower braces, lower tie bars,
sway bars, and limit straps are permitted. Traction bars and devices are permitted. The final
decision rests with the DHRA Technical Department.
Suspension, Rear:
An OEM-style suspension is mandatory. Traction bars and devices are permitted; they must be
bolt-on only; welds are permitted for attachment to frame or axle housing. Control arms may be
strengthened or replaced, provided all original mounting points are retained. Strut tower braces,
lower tie bars, sway bars, limit straps, and camber kits are permitted. The rear suspension must
maintain a minimum shock travel of one inch. All rear suspensions must use at least one working
shock absorber per wheel.
Tires:
The tires must be DOT street tires. Cut tires are prohibited.
Tow Vehicles:
Tow vehicles are prohibited.
Transfer Case:
Non-OEM transfer cases are prohibited. It must have been an option on a one-ton or smaller pick
up truck.
Transmission, Automatic:
Non-OEM transmissions are prohibited. Aftermarket torque converters, valve bodies and internal
components are permitted. Transmission brakes are prohibited. Any non-OEM floor-mounted
automatic transmission shifter must be equipped with a spring-loaded positive reverse lockout
device to prevent the shifter from accidentally being put into reverse gear. A functional neutral
safety switch is mandatory. All transmission lines must be metallic or high-pressure-type hose.
All vehicles with engines running 4500 RPM or more and using an automatic transmission must
be equipped with a transmission shield meeting SFI Spec 4.1 and must be labeled accordingly. A
blanket-type shield is permitted; it must be appropriately labeled as meeting SFI Spec 4.1 and it
must extend from the rear of the block to the front of tailhousing with a minimum six inch
overlap where it is fastened. All non-blanket-type shields must incorporate two (or one, per
manufacturer’s instructions) 3/4 inch by 1/8 inch straps that bolt to the shield on each side and
pass under the transmission pan unless the transmission pan is labeled as meeting SFI Spec 4.1.
All vehicles with engines running 4500 RPM or more and using an automatic transmission must
be equipped with a flex plate meeting SFI Spec 29.1 and be covered by a flex plate shield meeting
SFI Spec 30.1.
Transmission, Manual:
Non-OEM transmissions are prohibited. Aftermarket internal components are permitted. A clutch
meeting minimum SFI Spec 1.1 or 1.2 is mandatory on all vehicles with engines running 4500
RPM or more. All manual transmissions must be clutch assisted. Sequential shifters are
prohibited. All vehicles with engines running 4500 RPM or more and equipped with a manual
transmission must have a flywheel shield labeled as meeting minimum SFI Spec 6.3 or greater.
Applications for which an SFI Spec flywheel shield is not available may use a properly attached
SFI 4.1 or 4.2 blanket that completely covers the bellhousing; it must be attached to the block and
extend rearward to the transmission with a minimum six inch overlap where it is fastened.
Turbocharger:
The vehicle is limited to a single turbocharger; the inducer bore on the compressor housing may
be no larger than 2.8 inches measured at the smallest diameter area of the compressor wheel. A
bushing may be used to downsize the compressor housing ahead of the wheel. If a bushing is
used, it must be round, at least 3/4 inch long, mounted within 0.050 inch of the compressor wheel,
and the inside diameter of the bushing may not exceed the 2.8 inch limit. If you have any
questions regarding the construction of a bushing, contact DHRA Technical Services before the
season starts. The inlet will be measured using a 2.85 inch plug. All provisions allowing air to the
wheel other than via the bore are prohibited.
Water Injection:
Water injection is prohibited. All system components must be removed from the truck.
Wheelbase:
The vehicle must retain the original factory wheelbase and track width.
10-21-2006, 03:17 PM
#45
Registered User