To print either rules please right - click the text box that applies and select print
or
select your printer icon at the top of the tool box to print the whole page.
For 2009 - The two Classes are called the H&B Stocks - Either rules are accepted
2008 Bomber Class Rules
1. The Bomber class is a beginner’s class. No seasoned drivers may race in the Bomber class. Bomber drivers may stay in the class for more than one season, but may not return if they advance to another class. If you can not qualify as a rookie in any other class, then you will not be allowed to race in the Bomber class.
2. Absolutely no race cars from other classes are allowed.
3. Bomber cars may have an operational horn or sounding device it must be secure and kept in the interior of the car.
4. Bomber cars may be passenger cars, El Caminos, Rancheros, station wagons, and compact pickups, eg. Ford Rangers, Toyotas, S-10s, etc. Sertoma tech officials must approve any pickup style vehicle before it is allowed on the track, so check with the tech officials before you build it. A Sertoma tech official’s approval to race does not in any way signify that it is safe to race. Pickups tend to roll over in a race.
5. The vehicle must be two wheel-drive only. It can be either front wheel drive or rear wheel drive.
Engine Compartment
1. The engine must remain in its stock location and must remain stock internally. The engine must pull a minimum of 13” of vacuum at idle. Compression is 160 psi maximum. The exhaust manifolds must remain stock. Headers are not allowed. The exhaust must terminate past the engine firewall in a manner that is parallel to the track’s surface.
2. The driver’s/passenger’s compartment must be separated from the engine compartment with the stock firewall with all the holes covered or plugged with a non-flammable material. The trunk area must be separated from the driver’s/passenger’s compartment with a steel sheet that has no holes and has a minimum thickness of 20ga.
3. All wire and lines routed through any material, in the driver’s compartment, must have grommets, protecting from puncture/ shorts.
Body
1. All glass must be removed from the car (including mirrors).
2. Sharp objects must be eliminated from inside and outside the vehicle.
2. Remove all cast metal, trailer hitches, and chrome (including handles).
3. Bolt or weld doors shut. Trunk lid and hood must be secured by bolts or pins. Interior door and roof panels are to remain intact.
4. All batteries must be in a marine type box complete with appropriate cover. The box must be solidly mounted so as not to move in the event of a rollover. All batteries must be mounted behind the driver, preferably in the trunk.
5. No modifications to the stock suspension are allowed. Air shocks and/or lift kits are illegal.
6. Front and rear bumpers must remain in the stock locations. Bumpers must be strapped to the front fenders and rear quarter panels by flat bar. The flat bar max. size -- ¼” x 2”.
7. Windshield area must be covered with a screen that will allow no objects over ¾” through. Round bars (1/2” max. dia.) to support the screen, running from the bottom of the windshield to the top is required / or an alternate Sertoma Tech. approved setup.
8. Maximum wheel diameter is 15” and wheels must be stock OEM type.
A maximum 60 series - “street type” tire is allowed.
The tire must have factory installed DOT number.
Absolutely no racing, mud, snow, fancy, exotic, trick, gumball, etc. tires are allowed.
Tire grooving is illegal.
Treating the tires with any compounds while at the race track is illegal.
A maximum 60 series - “street type” tire is allowed.
The tire must have factory installed DOT number.
Absolutely no racing, mud, snow, fancy, exotic, trick, gumball, etc. tires are allowed.
Tire grooving is illegal.
Treating the tires with any compounds while at the race track is illegal.
9. The rear end must be locked either by welding the spider gears or replacing the gears with a commercial locking device.
10. Front inner fender wells may be removed.
11. All cars must have front and rear tow hooks or chains for wrecker hook up.
12. No alterations to the hood, roof, and trunk are allowed.
12. No alterations to the hood, roof, and trunk are allowed.
Fuel System
1. Stock gas tanks must be located to the trunk area and securely fastened with four (4) straps completely surrounding it. This will be a closely inspected area by Tech. Officials. We recommend racing fuel cells with an anti – rollover valve.
2. Bomber class fuel is commercial pump gas only (91 octane max). No performance additives to the fuel are allowed.
3. All fuel lines must be inside conduit or similar material protecting the driver from spray or leak.
Roll Bar
1. A four (4) point roll bar in the passenger compartment is a minimum requirement(roll bar with two rear kickers). As of January 1, 2008, all newly constructed cars must have a roll bar and kickers constructed of at least 1 ¾” tubing with a wall thickness of at least .095”. The roll bar must be welded directly to the frame through the floorboard. No square tubing, galvanized pipe, or black iron gas pipe is allowed as part of the roll bar.
Diagonal door bars are recommended for both the driver and passenger side. Recommended size is 1 ¾” tubing with a wall thickness of .095”. Steel 1/8" anti-penetration plates are recommended.
Diagonal door bars are recommended for both the driver and passenger side. Recommended size is 1 ¾” tubing with a wall thickness of .095”. Steel 1/8" anti-penetration plates are recommended.
Car Numbers
1. Each car must have an eighteen (18) inch number on each door and on the roof.
You must get approval from the WSS for your number.
The numbers are assigned at the pit gate upon registration.
The numbers are assigned on a first come, first served basis.
These numbers may range from 0 to 99 only.
The numbers must be a color that clearly contrasts to the color of the car.
Once assigned, you may keep your number as long as you race at Sertoma.
You must get approval from the WSS for your number.
The numbers are assigned at the pit gate upon registration.
The numbers are assigned on a first come, first served basis.
These numbers may range from 0 to 99 only.
The numbers must be a color that clearly contrasts to the color of the car.
Once assigned, you may keep your number as long as you race at Sertoma.
2. Visiting cars with conflicting numbers must add an “X” to their number.
Safety Gear
1. All drivers and passengers must wear a 5-point quick release harness. The harness must not be frayed, chaffed, worn, or torn in any manner. If the harness is attached to the floor pans, the harness mounts must be secured with 3/8” bolts and large -”fender” washers.
2. Helmets must be DOT approved with a minimum rating of Snell SA2000. All drivers and passengers must wear at least a single layer fire suit. A double layer fire suit or Nomex underwear under a single layer fire suit is highly recommended.
3. Rub bars are highly recommended. They may be a maximum size of 1” x 2” rectangular tubing or 1” sch. 40 round tubing and must be attached by carriage type bolts (no hex head bolts). The ends of the rub bars must be tapered. The rub rails may extend from the rear of the front wheel opening to the front of the rear wheel opening. The exterior heads of attaching bolts must be rounded and smooth so as not to tear tire sidewalls.
4. SFI approved neck braces are mandatory and must be worn by both drivers and passengers.
4. SFI approved neck braces are mandatory and must be worn by both drivers and passengers.
5. Window nets are mandatory for both the driver and passenger.
Claiming Rules
The track or anyone else has the right to claim the feature race winning Bomber car for $1000.00 cash. Anyone wishing to purchase the vehicle for $1000.00 must be at the Head Flag Stand or to the Pit Boss within five (5) minutes of Bomber Race Main finish. If the driver refuses to give up his or her car, then he/she will forfeit all money and points earned that night and that car and motor will not be allowed to race for the remainder of the season
2008 Hobby Stock
1. Bodies must be a 1950 or newer American made sedan or coupe with a factory steel top. No pickups, convertibles, front wheel drive, four wheel drive, or rear engine cars are allowed. Cars with sun roofs or T-tops must have the roof covered with a min. of 20 ga. steel sheeting. El Caminos and Rancheros are allowed.
2. Bodies must be strictly stock. Altering, modifying, chopping, or channeling the body or frame is illegal.
3. Doors must be bolted or welded shut. Trunk lid and hood must be secured by bolts or pins. Trunk lid and hood inner panels must remain intact. No open hoods, holes cut in the hoods, and no hood scoops.
4. Bodies must be maintained. Bodies must start the race night securely mounted. Dents are to be knocked out and ripped fender/door/quarter panels are to be repaired. Sharp edges protruding from the car will not be allowed. Track management reserves the right to disallow cars that are deemed dangerous or unsightly.
5. All glass, chrome, upholstery, and loose panels must be removed. No mirrors, horns, or lights.
6. A stock OEM stamped steel floor pan must remain intact and visible. Four (4) 2” x 3” rectangular drain holes permitted. Holes are subject to tech inspector approval.
7. The driver’s compartment must be separated from the engine with the stock firewall with all holes covered or plugged with a non-flammable material. The trunk area must be separated from the driver’s compartment with a steel sheet that has no open holes and has a minimum thickness of 20 ga.
8. The front inner fender wells may be removed.
9. Rear wheel wells may be cut out for tire clearance, but not to the point that it opens into the driver’s compartment.
10. Front and rear bumpers must remain in the stock locations with stock type mounts. Bumpers must be strapped to the front fenders and rear quarter panels by flat bar. The flat bar maximum size is 1/4” x 2”.
11. Rear deck spoilers must be OEM or no taller than 4 ½” and no wider than the flat part of the rear deck area.
Frame
1. The frame determines the make of the car.
2. The wheelbase is to be 108” minimum on both sides of the car.
3. “Sub frame” or “uni-body” type cars must have the front and rear frame assemblies tied together. The roll cage must connect the sub frame assemblies. Any frame may be X-braced.
Weight
1. Hobby stock cars must weigh a minimum of 3,500 pounds with driver after the completion of the feature race. The track scales are the final authority.
2. All added weights must be painted white with the car number on them. All weights must be securely fastened to the car by at least two (2) ½” bolts and washers with locking nuts. Weights may be either lead or steel flat or rectangular bars.
Steering
1. Original OEM steering box that matches the frame is required. Manual steering or power steering is acceptable with any PS pump.
2. Quick steering adapters are illegal.
3. A quick disconnect steering wheel is highly recommended.
Roll Cage
1. A full perimeter four (4) post roll cage with an X-brace in the rear, rear kickers, and windshield center support must be used. Roll bar padding is recommended.
A. The roll cage must be securely welded to the frame. Sub-frame or uni-body type cars must have four (4) plates measuring 6”x 6” x ¼” for mounting the roll cage posts.
B. Door inner panels may be removed to accommodate door bars and the roll cage.
C. A center roof bar is mandatory.
D. Front and rear loops are optional.
E. All cars must have a minimum of three vertical windshield bars in the driver’s windshield opening. A windshield screen that will allow objects no more than ¾” through is required.
A. The roll cage must be securely welded to the frame. Sub-frame or uni-body type cars must have four (4) plates measuring 6”x 6” x ¼” for mounting the roll cage posts.
B. Door inner panels may be removed to accommodate door bars and the roll cage.
C. A center roof bar is mandatory.
D. Front and rear loops are optional.
E. All cars must have a minimum of three vertical windshield bars in the driver’s windshield opening. A windshield screen that will allow objects no more than ¾” through is required.
2. For cars built aftet January 1, 2008, the roll cage must be constructed of steel tubing with a minimum diameter of 1 ¾” and a minimum wall thickness of .095”.
3. A minimum of three (3) horizontal door bars on each side constructed 1 ¾” x .095 tubing must be used. Anti-penetration plates on the door bars are recommended. As of January 1, 2008, all newly constructed cars must have steel anti-penetration plates of 1/8’ thickness minimum that shields the driver’s (and passenger’s) seat area.
4. Absolutely no square tubing, galvanized pipe, or black iron pipe is allowed as part of the roll cage.
5. A fuel cell protection bar may be used. It must extend from frame rail to frame rail and be made of 1 ¾ “ diameter tubing. It can be no higher than the fuel cell and no lower than the trunk floor and must be inside the trunk area. The trunk area may be cut 2” around the fuel cell only.
6. Rub rails are highly recommended.
A. Maximum size is 1” x 2” rectangular tubing or round sch. 40 pipe tubing with closed, tapered ends.
B. May extend from the rear of the front wheel opening to the front of the rear wheel opening.
D. Must be mounted or fastened with carriage type (round headed) bolts.
A. Maximum size is 1” x 2” rectangular tubing or round sch. 40 pipe tubing with closed, tapered ends.
B. May extend from the rear of the front wheel opening to the front of the rear wheel opening.
D. Must be mounted or fastened with carriage type (round headed) bolts.
7. External “nerf” bars are not allowed.
Suspension
1. The suspension must be original. No aftermarket racing suspension parts. No modifying of the suspension is allowed. Stock OEM springs must be used both front and rear. All suspension components must be in the stock locations. No racing springs of any kind. No coil over shocks or air shocks. Cutting of shocks is illegal.
Front spring sets and rear spring sets must match each other. The front pair of coil springs must have the same wire diameter and the rear pair of coil springs must have the same wire diameter. If leaf springs are used, then they must have the same amount of leafs, height, and thickness. Heating or bending springs is illegal.
Front spring sets and rear spring sets must match each other. The front pair of coil springs must have the same wire diameter and the rear pair of coil springs must have the same wire diameter. If leaf springs are used, then they must have the same amount of leafs, height, and thickness. Heating or bending springs is illegal.
2. Any pair of shocks (front pair or rear pair) can be claimed for $40.
Drive Train
1. Transmissions can be either automatic or manual type. They must be OEM type. No aftermarket racing transmissions. Automatic transmissions must have a stock OEM type torque converter. Manual transmissions must have a single disc OEM type clutch. Aluminum flywheels are illegal.
2. Any stock passenger car rear end is allowed. The rear end must match the manufacturer of the car, eg. Ford 9” is allowed on Fords, Chevrolet 10 and 12 bolts are allowed on Chevrolet, etc.
3. The rear end must be welded or locked with a commercial locking device. Detroit lockers, posi-track, limited slip differentials are illegal. Traction control devices are illegal.
4. A driveshaft loop is required. It must be constructed of at least ¼” x 2” steel flat bar or 1” round tubing and be mounted no more than 6” back from the transmission yoke. It can be 180 degrees under the driveshaft. The loop must be securely welded to the car or bolted with 4- 3/8” bolts with large washers over the floor sheet metal. Metric cars that have a factory driveshaft securing loop may use the factory mounts and bolts. All driveshaft loops must be approved by Tech officials.
5. The driveshaft and yokes must be made of steel only. The driveshaft must be painted white.
Tires and Wheels
1. Maximum wheel diameter is 15” and wheels must be stock OEM type. A maximum 60 series “street type” tire is allowed. The tire must have a factory installed DOT number. Absolutely no mud, snow, fancy, exotic, trick, gumball, etc. tires are allowed. Tire grooving is illegal.
2. Treating the tires with any compounds while at the race track is illegal.
Brakes
1. Only stock brake systems are allowed. Non-OEM bias brakes are not allowed.
2. Brakes on all four wheels must work. The test will be that all four wheels must slide in a demonstration.
3. No aftermarket brake pedals or any type of brake shut off devices are allowed.
4. Power boosters may be removed.
Engine and Carburetor
1. The engine must be strictly stock for the make of car (GM-GM, Ford-Ford, etc.) and in the original location. The make is determined by the frame of the car. NOTE: The word “stock” means “unaltered and originally produced for that make and model. You can not use OEM “special performance” parts as OEM stock.
A. Flat top pistons only.
B. No aftermarket valve train products
(1) Stock rocker arms only, no roller tip rockers.
(2) Stock diameter valve springs only.
C. Hydraulic camshaft and lifters
D. Stock OEM cast cylinder heads. No aftermarket heads.
(1) No alterations of any kind.
(2) You can not “mix and match” different cubic inch engine/head combinations eg. replace 350 heads with 305 heads. No “camel backs” or “double humps”.
E. Compression must 160 pounds or less.
F. The engine must produce 13” or more of vacuum at 900 RPM.
G. Stock intake manifolds only. If an intake is not available for the make and model of your race car, a 4 barrel may be used if secondaries are blocked. No carburetor modifications except for choke removal.
A. Flat top pistons only.
B. No aftermarket valve train products
(1) Stock rocker arms only, no roller tip rockers.
(2) Stock diameter valve springs only.
C. Hydraulic camshaft and lifters
D. Stock OEM cast cylinder heads. No aftermarket heads.
(1) No alterations of any kind.
(2) You can not “mix and match” different cubic inch engine/head combinations eg. replace 350 heads with 305 heads. No “camel backs” or “double humps”.
E. Compression must 160 pounds or less.
F. The engine must produce 13” or more of vacuum at 900 RPM.
G. Stock intake manifolds only. If an intake is not available for the make and model of your race car, a 4 barrel may be used if secondaries are blocked. No carburetor modifications except for choke removal.
Exhaust System
1. The exhaust manifolds must be stock cast iron. They may be center dump or ram horn type.
2. Street headers complete with exhaust flanges are allowed. Fender well and 180 degree headers are illegal.
3. The exhaust must extend past the stock firewall and must be parallel with the track surface where it ends. It can not be pointed toward the track surface.
Ignition Systems
1. Stock OEM distributors only, no aftermarket ignitions, modules, or distributors.
Fuel System
1. Mechanical fuel pumps only. No electrical fuel pumps allowed.
2. Gas tank or approved fuel cell must be securely fastened in the trunk area with a minimum of four (4) straps.
3. There must be a check or “roll over” valve in the fuel tank/cell vent. The valve must be inline in a secured hose that ends at a point lower than the fuel tank/cell bottom.
4. Fuel lines that pass through the driver’s compartment must be encased in solid tubing with no breaks. Steel braided hose, eg. Aeroquip, etc. is acceptable. Maximum fuel line size is 3/8” ID.
5. Commercial pump fuel only (91 octane maximum). No aviation gas, methanol, alcohol, racing fuel, or any other performance enhancing additives are allowed.
Cooling Systems
1. Aluminum radiators and cooling spray bars are permitted.
2. Water reservoirs must be mounted with at least two straps in case of major accident or roll over.
Battery
1. Battery must be in the trunk area. You may use one of the following types of mounting.
A. Plastic “Marine Style” box (recommended)
(1) Must be solidly mounted.
(2) The top must be securely strapped to the box.
(3) Must have a foam packing around the battery to keep it from shifting.
B. If an IMCA style steel battery container is used, it must be welded to the frame of the roll cage in the trunk area.
A. Plastic “Marine Style” box (recommended)
(1) Must be solidly mounted.
(2) The top must be securely strapped to the box.
(3) Must have a foam packing around the battery to keep it from shifting.
B. If an IMCA style steel battery container is used, it must be welded to the frame of the roll cage in the trunk area.
2. All holes in the firewall (front and rear) that have wires or lines running through them must have grommets.
Race Seat
1. All cars must have an approved aluminum racing seat.
2. The seat must be fastened to the roll cage by a minimum of four (4) 3/8” bolts with 2” fender washers between the bolt head and the seat. Minimum bolt grade is grade 5.
Driver and Passenger Safety Equipment
1. An approved safety harness is required in all cars and must be a minimum of a five (5) point quick release type.
A. The harness must be securely fastened to the roll cage. The harness must be an approved “bolt on” or “wrap around” type.
B. If the harness is a “bolt on” type, the minimum bolt size is 3/8”. The minimum grade is grade 5.
C. Bolts can not be inserted through the harness webbing. If this is done, the harness must be discarded.
D. The harness must be installed in such a manner to allow swivel action with no shear action (to avoid cutting, tearing, etc.)
E. The lap portion of the harness should cross the driver’s hip at approximately 45 degrees to the perpendicular.
F. The harness must have a readable date and can not be over eight (8) years old.
G. The shoulder belts must be fastened securely behind the driver at or below shoulder level.
H. The race seat must be rolled or have grommets (to prevent shearing) where the harness straps pass through the sides, rear, and front of the race seat.
I. No portion of the harness may be worn, torn, or frayed.
A. The harness must be securely fastened to the roll cage. The harness must be an approved “bolt on” or “wrap around” type.
B. If the harness is a “bolt on” type, the minimum bolt size is 3/8”. The minimum grade is grade 5.
C. Bolts can not be inserted through the harness webbing. If this is done, the harness must be discarded.
D. The harness must be installed in such a manner to allow swivel action with no shear action (to avoid cutting, tearing, etc.)
E. The lap portion of the harness should cross the driver’s hip at approximately 45 degrees to the perpendicular.
F. The harness must have a readable date and can not be over eight (8) years old.
G. The shoulder belts must be fastened securely behind the driver at or below shoulder level.
H. The race seat must be rolled or have grommets (to prevent shearing) where the harness straps pass through the sides, rear, and front of the race seat.
I. No portion of the harness may be worn, torn, or frayed.
2. If there is a passenger seat, all requirements for the seat and harness for the driver apply to the passenger seat.
3. All drivers and passengers must wear at least a single layer fire suit. A double layer suit or Nomex underwear under a single layer suit is highly recommended.
4. A SFI approved neck brace must be worn by both drivers and passengers.
5. A Snell SA2000 or later helmet is required for both drivers and passengers.
6. Driver’s window net is required. If there is a passenger, then a passenger side window net is required.
Claiming Procedure Rules
1. Either pair of shocks (front or rear) can be claimed for $40.00.
2. Carburetor can be claimed for $175.00.
3. Any one wishing to lodge a protest or claim a part must be standing next to the flag man or track announcer with money in hand no later than five (5) minutes after the Hobby Stock feature race.
4. If the driver refuses to submit to the protest inspection or submit the claimed part, then the driver will forfeit all points and money earned that night.
Miscellaneous
1. Oil lines in the driver’s compartment must be encased in tubing with no breaks.
2. If the transmission cooler is located in the driver’s compartment, it must be shielded from the driver.
3. No transmitting or listening devices are allowed in the car. No devices, except for a memory tachometer, that are designed to store information are allowed in the car.
4. Each car must have a number on the door and roof. The numbers must be at least 18” tall. These numbers may range from 0 to 99 only. The numbers must be a color that clearly contrasts to the color of the car. You must get approval from the Sertoma club for your number. Last year’s drivers will be given first choice, then numbers are assigned on a first come, first served basis. Once assigned, you may keep your number as long as you race at Sertoma.
5. Visiting cars with conflicting numbers must add an “X” to their numbers.
6. Front and rear tow hooks or chains for wreck
Protest Procedure Rules
1. Any one wishing to lodge a protest must be standing next to the flag man or track announcer with cash money in hand no later than five (5) minutes after the Street Stock feature race.
2. Protest costs are $150.00
3. If the driver refuses to submit to the protest inspection then the driver will forfeit all points and money earned that night.
4. If no illegal issues are found then the protestor loses the money.
5. If the driver is found illegal then the protestor’s money will be refunded upon validation with the Tech Inspectors.
Tech Inspectors will be validated with the Racing Director in any decision for disqualification or fines.
Tech Inspectors will be validated with the Racing Director in any decision for disqualification or fines.
This page was last updated: February 17, 2010
