Jalopy and Bomber Class

 

 Jalopy Division

This division is to be comprised of race cars closely resembling and patterned after those factory stock race cars competing from 1949 thru the mid to late 50’s.  Any well-built  jalopy race car developing 95 to 110 horsepower should be capable of racing competitively within this division.  Drivers and owners of Jalopy division race cars are expected to willingly, thoughtfully, and honestly adhere to, comply with, and support these rules and our concept of equal competition within a given racing division.  No race car operating in this division shall be permitted to exceed our accepted performance standard during racing events, period.
.
ANY and ALL race cars presented to Rockabilly Ruckus as “Jalopy” class race cars, which in any way exceed or appear to exceed  the “norm” for genuine authentic jalopy race cars of the target era SHALL BE RESTRICTED in any fair and reasonable manner so as to equalize the competition within our Jalopy division, REGARDLESS of whether these race cars APPEAR to comply with the Jalopy Division rules, or not!.  Any race car powered by a permitted non-era engine which exceeds the capabilities of the true early era vintage engines will automatically be restricted to a level of equal competition.

ANY owner or driver unwilling to comply with such restrictions as Rockabilly Ruckus might deem appropriately applied to their race car, shall not be permitted to compete in this division.

THE VERY SUCCESS OF ROCKABILLY RUCKUS  EARLY ERA RACING SERIES DEPENDS UPON MAINTAINING THE AUTHENTICITY OF OUR RACING PRESENTATIONS AND THE CARS WITH WHICH WE DO THOSE PRESENTATIONS, AS ACCURATELY AS POSSIBLE MORE THAN FIFTY YEARS AFTER THE FACT.  THE MOST ACCURATE REPRESENTATIONS OF EARLY ERA STOCK CARS MUST REMAIN COMPETITIVE AND THE STANDARD BY WHICH ALL ELSE IS MEASURED.

 

Bodies
1. American-made steel or fiberglass bodies through 1950 – coupes, coaches, pickup/panel trucks.  Fenders are optional.
2. Bodies must retain their stock configuration and be located in their normal position.
3. Bodies must be securely fastened to the frame or roll cage.
4. Rear window opening may be enlarged for visibility.
5. Body/Chassis may be “bobtailed” to the spring mount.
6. Rear wheels must center in rear wheel well, +/- 1 inch
7. Door panels should not be cut down to the point of endangering the driver.  “Turret” tops/open roofs must be covered
with sheet metal securely fastened, or plated over the driver’s position.
8. Body height to the rain gutter at driver’s door shall be a minimum of  58 inches, when on racing rubber.

9. No glass in any Windows.

 

Chassis
1. Car frames through 1950 are allowed, as well as any ½ or ¾ ton pickup frame with SOLID front axle and LEAF springs all around.
2. Frame shall be factory production, unaltered, and retain stock configuration.  Frames may be reasonably reinforced and/or repaired for safety and longevity.  Front and rear “clips” must retain their original stock configuration and positioning.  No tubular frames of any kind – short pieces of rectangular tubing may be used in frame repair, so long as the basic frame configuration is unchanged. Frame front clips & rear clips may be interchanged between makes to make up a complete frame, so long as such changes are approved by the Board.
3. Frame length/wheelbase may be adjusted as necessary to align rear wheels with wheel well of body.

4. Must have lifting hook securely attached to frame and accessible to the tow truck driver.

 

Front Axle/Suspension
1. Front suspension on solid axle cars shall remain stock for year and make of  frame.  Coil spring/”A” frame front ends may be converted to a factory stock solid front axle suspension system.  (This modification is recommended).
2. Front leaf spring systems shall be either single transverse (as in early Ford) OR twin parallel springs (as in Chevy, Plymouth, etc.

Certain limited modifications are permitted:
a. heating of springs
b. number of spring leaves may be changed
c. Ford transverse springs may have one shackle “locked” in position to prevent side sway
d. shackle length may be changed so long as it does not appreciably lower the ride height of the vehicle
e. caster/camber may be changed
f. wheels may be reinforced, or ¾ ton safety hubs utilized
g. up to two stock factory issue (OEM) shocks of any configuration (lever or “airplane” type) per wheel.   No racing shocks
allowed.
h. No torsion bar assemblies or coil overs are permitted

Rear Axle/Suspension
1. Any factory production rear axle may be used, so long as the factory stock original rear suspension is retained.  Approved  rear leaf spring systems may be substituted for rear coil spring systems – Buick, etc.
2. Certain limited modifications are permitted:
a. heating of springs
b. number of spring leaves may be changed
c. Ford transverse springs may have one shackle “locked” in position to prevent side sway, or a non-adjustable panhard bar (homemade, or similar to 42 – 48 Ford – no heim joints))
d. shackle length may be changed so long as it does not appreciably lower the ride height of the vehicle
e. wheels may be reinforced, or ¾ ton safety hubs utilized

3. Open drive shafts may be substituted for enclosed drivelines, and vice versa.
4. Up to two stock factory issue (OEM) shocks of any configuration (lever or “airplane” type), per wheel.   No racing shocks

Engines

 The GENERAL STANDARD for the Jalopy division

SHALL BE 95 to 110 hp.

1.Engines in this class/division must remain factory stock
2. Engines shall remain in original stock factory location.    
NO  SETBACKS OR OFFSETS
3. Carburetion shall remain factory stock – 1 single barrel for 6 cylinders, 1 two barrel for 8 cylinders
4. Camshafts shall remain factory stock
5. Homemade exhaust pipes are allowed
6. Ignition must remain stock
7. There shall be no overhead valve V-8’s, V-6’s, nor overhead cams
8. Allowable factory stock engines (except as noted)  * – Asterisk denotes automatic restriction as necessary

9. Water ONLY in Radiator—NO ANTIFREEZE!!

10.  PUMP GAS ONLY

 

Ford – any flathead 6, or flathead V-8 up to 255 c.i.
– 221 cubic inch/21 stud flathead engines may use 2 two barrel carburetors
– 60 horse flathead engines may run without restriction
– any Lincoln flathead V-12
– any factory stock ohv in-line 6 cylinder up to 300 c.i. *

GM – any flathead  in-line 6 or 8 cyl.
-any chevrolet 6 cylinder in-line up to 1953  235c.i.
any Chevrolet  6 cylinder in-line 1954 or later 235 *
any Chevrolet 230, 250, 261, 292 *
– Chevrolet 216 or smaller may run dual carburetors or one dual
– GMC 228 or 248 c.i.
– Buick  in-line 8 cyl 248/263 c.i

Chrysler – any flathead  in-line 6 up to 230 c.i.
201 cu. in. and smaller may run 2 single barrel carburetors, or one dual
Any Mopar flathead in-line 251 to 265 c.i.*
Any factory stock ohv in-line engine up to 225 c.i. *

AMC – any flathead
– any factory stock ohv in-line engine up to 234 cu. In.
– 184 cu. in. and smaller may run 2 single barrel carburetors, or one dual

Independents/Other makes – may run engines equivalent to above.   As certain exceptions may apply, seek approval of the unusual from the Governing Board.

*  All engines exceeding our goal  of  95 to 110 horsepower WILL be restricted, as necessary, in any reasonable fashion that will assure equal and fair competition within this division !

Transmission/Clutch/Flywheel
1. Any factory stock  3 speed or pickup truck 4 speed is allowed
2. No lightweight flywheels or racing clutches allowed

 

Tires/Wheels
1. Stock steel wheels up to 8 inch width # are acceptable, and may be reinforced
2. Wheels may be reversed or “built-out” (offset) to edge of rim
3. Ford wide five wheel or safety hub may be adapted to any corner, in any secure manner
4. Maximum tire tread width is 8 inches #
5. Any circumference tire may be used – these will serve as a ‘poor man’s quick change’
6. No snow tires or aggressive treads, summer treads only
7. No racing tires of any kind – only standard DOT street tires

# Except as restricted for competitive equality.

**2 ½ pound dry chemical fire extinguisher with gauge, charged, located within easy reach of the driver must be securely mounted (NO TAPE).

 

BOMBER DIVISION

 

The following specifications have been prepared by Rockabilly Ruckus as guidelines for the construction of a Bomber. In conjunction, no warranty of safety is expressed or implied as a result of this publication of rules. These rules are intended as a guide and are in no way a guarantee against injury or death to participants, spectators, or others. Anything not covered by these specifications should be approved by the various track officials and be placed in writing. Continuous developments in auto racing and technology may necessitate changes in these specifications. However, it is our intent to enforce and police these rules throughout the season. If a change is necessitated, technical bulletins will be prepared and distributed in advance.

 

Track officials have the final say in determining the eligibility of all participants.

 

1. BODY

 A. Any American made steel production body, passenger car. (1949-1974)

 B. All doors must be bolted, welded or strapped shut.

 C. No chopping, shortening, or cutting on body allowed., except for tire clearance only.

D. May remove front inner fenders.

E. Rear wheel tubs and trunk must remain.

F. Sheet metal for sides to replace damaged doors or quarters. NO ALUMINUM.

2. CHASSIS/FRAME

A. Must be full frame. Uni-Body may be used but must be tied together with 2 " X3" minimum tubing.

B. There must be a lifting hook securely attached to the frame at both the front and rear of vehicle. Lifting hook must be easily accessible by tow truck operator.

 C. No radios allowed.

 D. No weights allowed.

 

3. BUMPERS

 A. Must be stock.

 B. Must be welded to frame.

4. INTERIOR

 A Bracing bars may extend forward or rearward through firewalls for safety purposes only and welded to the back of the bumpers and frame.

 B. Interior must be gutted completely.

 C. Front and rear firewalls must be completely covered with sheet metal.

 D. Approved racing seat only. Must be properly framed and securely mounted to roll cage. No factory buckets of any type and must be mounted in stock location - 3 " in front of rear door opening.

E. Must have standard firewall and floor board.

G. No mirrors.

H. Must have 4 point design roll cage, 1 5/8" O.D. minimum, mild steel.

 I. Minimum 3 door bar driver side and 2 door bar passenger side.

 5. ENGINE

 A. Must be stock engines only.

B. MUST BE IN STOCK LOCATION.

 C. Cast iron intake, heads, and blocks.

 D. GM to GM, Ford to Ford, etc., only. Except rearends.

E. Stock battery ignition only. No dual point distributor. No magnetos.

 F. No electric fuel pumps.

 G. Headers are permitted.

H. MUST RUN ON PUMP GAS ONLY

I. WATER ONLY IN RADIATORS

 

 6. CARBURETORS

 A. Up to 2 - 2 barrel carburetors or 1- 4 barrel carburetor.

7.BRAKES

 A. Must have 4 wheel brakes.

 B. Drum or disc allowed.

 8. REAREND

 A. Passenger car or 1/2ton truck only.

 B. Posi-trac OK. Rearends may be locked.

 C. 'Floater' rearends allowed.

 9. TRANSMISSION- STOCK TRANSMISSIONS ONLY

 A. Standard or automatic transmission of production type. (Must have torque converter)

 B. Transmission must have forward and reverse in working order.

 C. Clutch must be in working order.

IO. WHEELS AND TIRES

 A. Steel wheels only. 8" maximum.

 B. Racing type wheels allowed,

 C. 70 series DOT tires only. Must be passenger car type.

 E. No mud grips or snow tires.

 F. You may reinforce right front wheel.

 G. I" Hex lug nuts REQUIRED.

 11. SUSPENSION

A. All steering components must remain stock as per car.

 B. No shortening or lengthen of A-arms.

 C. Shock mount in stock locations. 1 shock per wheel only. No adjustable shocks/racing shocks.

 D. No weight jacks allowed front or rear.

E. Suspension must be factory stock as per car (leaf/coil).

12. SAFETY

A. 2 1/2pound dry chemical fire extinguisher with gauge, charged, located within easy reach of the driver and securely mounted. NO TAPE.

 B. Fuel cell mandatory. Must be properly mounted in trunk area.

 C. Snell 85 helmet required.

 D. 5 pt. safety harness required. 3 " lapbelt and shoulder harness w/ aircraft quick release type latch. NO passenger car belts of any type. Must be bolted to roll cage w/ no less than 7/16 bolt.

 E. Driveshaft loop is required and must be constructed of at least 1/4" by 2" steel and should be mounted no more than 6" back from front of drive shaft. 1/4" chain, or larger, can be used in place of steel strap.

 F. Battery location optional. If mounted in driver compartment must be enclosed and securely mounted in marine type battery box.

 G. All glass, chrome, interior, and exterior trim must be removed.

 H. Fire resistant driver uniform mandatory. Fire resistant gloves highly recommended. Flame resistant coveralls are not permitted.

 I. Approved racing seat with appropriate tubular framing only. No factory production type seats of any kind.

 J. Driveshaft must be painted white or florescent color.

 13. APPEARANCE

 A. All cars should be neatly painted w/ numbers painted 18" high on sides and 24" high on roof, and all numbers to be 3" thick.

 B. All cars must be neat in appearance, painted to look like a race car and be neatly lettered. Badly wreaked cars must be straightened.

C. NO RUST BUCKETS!

 

 

JalopySpecs.docx
Microsoft Word document [19.3 KB]
BOMBER SPECIFICATIONS.docx
Microsoft Word document [16.0 KB]

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