Official 2006 MoPowered Engine Builder Challenge Rules

By Francis Hamilton,2014-06-17 20:55
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Official 2006 MoPowered Engine Builder Challenge Rules

    Official Rules 2006 MoPowered Engine Builder Challenge The MoPowered Engine Builders Challenge requires the use of a Mopar small block V-8 engine with a

    maximum displacement of 440.0 cu in.

The engine must be assembled with the following components:

    Part Number: Castings Number Description: MSRP:

    P5153478 P5153477 340 Siamese Bore Cast Iron Engine Block $2,850.00

    P5007252 N/A Forged Crankshaft w/4.000" Stroke $1,067.00

The engine must use a pair of the following Mopar cylinder Heads:

    Part Number: Castings Number Description: MSRP:

    P5153533 P5007140 LA Replacement Cylinder Head Assembly (Cast Iron) $849.00 Each

    P5153532 P5007140 R/T Magnum Cylinder Head Assembly (Cast Iron) $849.00 Each

    P5153534 P4532900 Aluminum Magnum Cylinder Head Assembly (Alum) $1,229.00 Each

    P5153535 P4532900 Commando Cylinder Head Assembly (Alum) $1,329.00 Each

    P5153536 P4532795 Commando Lg. Port Cylinder Head Assembly (Alum) $1,399.00 Each

The engine must use one set of Mopar valve covers:

    Part Number: Description: MSRP:

    P5007617 Mopar Magnum Valve Covers $192.00/set

     (fits heads P5153533, P5153532, P5153534)

    P5007611 Mopar "LA" Valve Covers $105.00/set

     (fits heads P5153535, P5153536)

    P4876124 Mopar "LA" Valve Covers Wide $257.00/set

     (fits heads P5153535, P5153536)


    The maximum displacement allowed is 440 cubic inches. Cubic inch is calculated by bore x bore x stroke x

    6.2832. Bore and stroke are measured to three significant digits; that is, 0.001. Cubic inches are calculated to

    one significant digit; for example, 440.0. Note that an engine with a calculated cubic inch of 440.1 or larger is

    considered illegal. Power adders, such as superchargers, turbochargers, nitrous oxide, or other such devices

    are not allowed.

Engine Block

    The engine block must retain OEM cylinder bore spacing and OEM block angle. Lifter bores must retain OEM

    angle (+/ 1-degree), and OEM diameter (+/- 0.005-inch). Lifter bores may be bushed. Engine blocks must retain OEM passenger car or light truck deck height or lower. Any method of artificially increasing the deck

    height of the engine block (e.g., using spacer plates or multiple head gaskets), is not allowed. Head gaskets are

    limited to a maximum total thickness of 0.060-inch per cylinder head. The location and number of bolt holes on

    the deck cannot be altered.

Cylinder Heads

Valves must retain as-manufactured valve angles (+/- 1-degree) and as-manufactured valve location (relative to

    bore centerline), as originally cast. Cylinder head decks may be milled as long as the milling does not affect the

    valve angle more than the 1-degree variance allowed by the rules. Machining the valve angle back to within the

    1-degree specification after angle milling the heads is not allowed. Any valve seat size and/or valve size is

    acceptable. Any commercially available stainless steel valve is acceptable. Titanium valves and/or springs are

    not allowed.

Unlimited porting and/or polishing of the intake and/or exhaust ports is acceptable. Modifications to the exterior

    surfaces of the intakes and/or exhaust ports, such as welding and/or adding additional material to increase port

    size or to alter the port design, is not allowed. The exterior surfaces of the ports, which include the intake

    manifold and/or exhaust manifold mating flanges, must remain ―as-cast‖ by the manufacturer and cannot be

    altered in any way. Fastener holes on the intake manifold and/or exhaust manifold mating surfaces must remain

    as-manufactured and cannot be altered in any way. Flange adapters that connect the exhaust ports to the

    header are not allowed.


    Any commercially available, non-programmable ignition system, including points, electronic, or capacitive

    discharge that uses a single battery-powered distributor and coil is acceptable. Crank triggers, magnetos, and

    ICTs are not allowed. Independent ignition timing switches or devices of any kind are not allowed. Ignition

    timing advance and/or retard must be controlled by the mechanical weights and springs as manufactured in the

    distributor for this purpose. Locked-out distributors are acceptable.

Engines must be equipped with a distributor, ignition box, ignition coil, spark plug wires (with suppression

    shielding), and related ignition wiring designed for easy connection to the dyno. Spark plug wires must be

    commercially available and their design must remain unmodified.


    Any commercially available, single four-barrel carburetor (including Dominator-type) is acceptable. Fuel

    injection and/or water injection systems are not allowed. Carburetor gaskets and/or spacers are limited to a

    total maximum height of 2.25 inches (measured from the carburetor base to the top of the intake manifold

    carburetor flange surface). All engines will use an electric fuel pump supplied by the dyno facility, and each

    engine builder will determine the fuel pressure.

Air Filter

    Any commercially available, street-style air filter and air filter housing is acceptable. All engines must be

    equipped with a 14-inch diameter x 3-inch tall air filter and air filter housing while running on the dyno.

    Modifications to the air filter or air filter housing are not allowed. Filtered lids are acceptable and are considered

    part of the air filter housing. Velocity stacks and/or stub stacks are not allowed.


    Any commercially available camshaft is acceptable. Custom-designed and custom-ground camshafts are not

    acceptable. Solid roller and hydraulic roller designs are acceptable. Mushroom-style and Shubeck brands or

    styles of lifters are not allowed. Lifters must be unmodified out-of-the-box parts and cannot be altered in any

    way from their manufactured as-new state. Commercially available offset lifters are acceptable.

Intake Manifold

    Any commercially available, single four-barrel, single, or multi-piece, cast intake manifold is acceptable. Tunnel

    rams, sheet metal, and/or composite manifolds are not allowed. Porting, polishing, and/or sizing of the interior

    surfaces of the intake runners and/or ports is acceptable. Filling and/or welding of the interior surfaces of the

    intake runners and/or ports is not allowed. Modifications to the exterior surfaces of the intake ports and/or

    manifold, such as welding on additional material to increase port size and/or to alter the port design, are not

    allowed. Using an intake manifold that is designed and cast for use on a different make or family of engine is

    not allowed. Intake manifolds may be drilled and tapped for additional coolant paths, but additional material

    may not be welded onto the intake manifold for this purpose.

Rocker Arms

    Any commercially available stud or shaft mounted rocker arms are acceptable. Multiple rocker shafts per

    cylinder head are not allowed. The maximum rocker arm ratio is 1.8:1. All rocker arms must retain the OEM

    mounting design and location for the cylinder heads provided.


    Any commercially available, chassis-style exhaust headers are acceptable. Headers must be un-modified and

    designed to fit any 1955 or later passenger car or light truck chassis without modification to the vehicle or the

    chassis. Port matching of the header flange is acceptable. Any diameter of primary tubes and collectors are

    acceptable. Header sets that were designed and manufactured with slip-on style collectors are acceptable.

    Modifying and/or replacing the as-manufactured slip-on style collector(s) is not allowed. Custom headers,

    header kits, multi-piece headers, and/or fender well headers are not allowed. Headers must not be closer than

    19 inches from pipe to pipe or they will not clear the dyno uprights.

Commercially available headers designed and sold with a removable pipe section for chassis clearance are


Crankcase ventilation systems that vent to any component of the exhaust system are not allowed. Bungs for

    Lambda O

     sensors are acceptable, and may be used during the competition; all other bungs must be capped. 2


    Mufflers are required. Only commercially available street-style mufflers are acceptable. Mufflers and

    connections to be no greater than 30‖ in length from collectors. Mufflers must be street style no racing types

    MAXIMUM 3‖ inlet and 3‖ outlet. Examples: MagnaFlow 12249, 12259, 13259, FlowMaster 43041, 43043 or

    equal type equipment.

Oil Pan

    Any commercially available, chassis-style wet-sump oil pan is acceptable. The oil pan must be an unmodified,

    out-of-the box part designed to fit a 1955 or later American production car or light truck chassis without

    modification to the vehicle or chassis. Dry-sump systems and vacuum pumps are not allowed. External

    crankcase ventilation and/or oil drain-back systems plumbed externally that will return oil to the pan are not

    allowed. Builders choosing to run windage screens or scrapers can do so only if they are already part of the as-

manufactured oil pan design or are attached without any modification to the block or oil pan. Oil system

    accumulators are not allowed.

Belt-driven external oil pumps are not allowed. Oil pans must remain as-manufactured and unmodified.


    All engines must contain at least 5 quarts of motor oil during each dyno pull. Engines must be shipped ―dry‖ to

    the certified dyno site, along with at least 5 unopened quarts of oil. Any commercially available oil additive is

    acceptable, but is not required.


    Any commercially available performance piston coating is acceptable. The application of thermal and/or friction

    coatings must be performed prior to the competition. Performance coating or painting of any other component is

    not allowed unless specified. Painting of the outside of the block, cylinder heads, and oil pan is acceptable.


    All engine builders will use the Mopar Performance part number P4876047; Race Steel Flywheel during the

    engine builder challenge.


    Fuel will be supplied for the engine builder challenge dyno pulls.

Spec Fuel:

    VP Racing Fuels StreetBlaze 100 Specific Gravity: .746 @ 60?F

    Color: Orange

    MON: 96

    R+M/2: 100

    RVP: 6.8

    Oxygenated: Yes (Ethanol)

    Oxidation Stability (min.): 1440+


    10% evap. @ 148.0?F

    50% evap. @ 210.0?F

    90% evap. @ 216.0?F

    E.P. @ 238.0?F

Contestants are required to submit with their engine assembly a complete listing of all parts used in the

    assembly. It is mandatory that the parts listing include all part numbers. The listing should also include the

    Manufacturer’s Suggested Retail Price (MSRP) for each part; otherwise, an average cost plus a penalty of 20

    percent will be assessed. All parts in the engine assembly must have their part numbers clearly visible for

    verification during engine teardown.

    The total cost of all of the parts used for the engine build will then be used to calculate a Lowest Cost number,

    based on -0.10 points assigned to every dollar spent on parts. For example:

Total amount spent on parts based on part number and MSRP ($3,700) x -0.10 = Lowest Cost number (-370).

The Lowest Cost number will be added to the Highest Horsepower and Torque, and Best Streetability numbers

    to determine the overall winner.

Tools and Supplies

    Contestants are required to supply all necessary tools, spare parts, jets, gaskets, timing light, shop towels, etc.,

    in order to complete their final engine assemblies, tuning adjustments, modifications, and/or repairs. Tools,

    spare parts, jets, gaskets, timing light, shop towels, etc., will not be provided by the dyno facility or MoPowered

    Engine Builder Challenge personnel, except those needed to install and remove the engine from the dyno.


    Participants are responsible for coordinating and funding their engine transportation to and from the

    MoPowered Engine Builder Challenge competition dyno site:

    SuperFlow Headquarters

    3512 North Tejon

    Colorado Springs, CO 80907

All engines must be delivered to the dyno site no later than 5:00 pm MST on July 6, 2006. Any engine that

    arrives late may be disqualified from the competition.


    Participants are responsible for any transportation, lodging and/or food expenses that may be incurred while

    attending the MoPowered Engine Builder Challenge dyno event.

All participants are required to attend a participant meeting at the dyno facility July 10, 2006 at 8:00 am. At that

    time, participants will be required to sign and liability waiver.

Dyno Site

    The MoPowered Engine Builder Challenge dyno competition will be held July 1011, 2006 at the following


    SuperFlow Headquarters

    Attn: Paul Cormier/MEBC

    3512 North Tejon

    Colorado Springs, CO 80907

     Dyno Pulls

    Contestants must be present or represented during their dyno testingno exceptions. Dyno pulls during

    competition will be conducted as follows: Engines will be placed on an assigned dyno per a published schedule.

    Contestants will assist the on-site officials and dyno facility personnel in completing the necessary dyno

    connections and final engine assembly. Each contestant will then be required to review and sign a dyno

    checklist form that confirms the engine is ready to compete and can be warmed-up to the MoPowered Engine

    Builder Challenge-specified operating temperature of 160 degrees for water (water tower temperature) and 160

degrees for oil. If the engine is unable to achieve these temperatures within five minutes, MoPowered Engine

    Builder Challenge personnel will determine when the mandatory warm-up pulls will begin.

Warm-up pulls will consist of three consecutive controlled acceleration tests (approximately 300 rpm per

    second) acceleration pulls ranging from 3,000 to 6,500 rpm. Competitors will be allowed to check and set

    ignition advance with timing light prior to beginning the warm-up pulls. Once the warm-up pulls have been

    completed, each contestant will then be allowed a tuning period of not more than 20 minutes to make as many

    test pulls, tuning adjustments, and/or repairs as they desire. Contestants who are not able to complete their

    tuning adjustments and/or repairs in the allotted 20 minute tuning period must run ―as-is.‖ *

*Inlet air flow turbine will be available during tuning period only.

     ? Average barometer (station pressure): 23.8‖Hg to 23.9‖Hg **Historical data on ambient weather conditions in July:

    ? Average ambient air temperature: 85?F to 90?F

    ? Average dew point: 45?F to 55?F

    Competition Measured Parameters** Once the tuning period has been completed, the engine will be restarted and allowed to idle for five minutes.

    After five minutes, idle rpm and idle vacuum will be measured and averaged for one minute.

The idle rpm average will then be divided by the idle vacuum average, with the result multiplied by -5 to

    produce a Streetability number. For example:

    Idle rpm average (900) divided by Idle vacuum average (12) = 75

    75 multiplied by -5 = -375

The Streetability number will be added to the Highest Horsepower and Torque, and Lowest Cost numbers to

    determine the overall winner.

After the idle rpm and idle vacuum have been measured and averaged, competition pulls to determine

    horsepower and torque will begin. Competition pulls will consists of three consecutive ―medium speed‖

    (approximately 330 rpm per second) acceleration pulls ranging from 3,0006,500 rpm. Then, average torque

    figures and average horsepower figures from the three competition pulls will be averaged, and then added

    together to produce a final number. For example:

    Pull 1: Average Torque = 482, Average Horsepower = 421

    Pull 2: Average Torque = 485, Average Horsepower = 423

    Pull 3: Average Torque = 484, Average Horsepower = 423

    Average Torque (483.6) + Average Horsepower (422) = 905.6

The Horsepower and Torque number will be added to the Streetability, and Lowest Cost numbers to determine

    the winner.

Rules Enforcement

    MoPowered Engine Builder Challenge personnel reserve the right to tear down any engine for rules-

    enforcement inspection. MoPowered Engine Builder Challenge personnel will conduct and supervise all

    teardowns. The winning engine will be torn down for rules enforcement inspection and/or contingency sponsor

    verification. Any participant found to be in violation of the rules or refusing to comply with an inspection request

    may be disqualified from the contest. It is the contestant’s responsibility to verify the legality of all parts,

    components, and/or modifications on their engine.

Final Determination

    The winning engine will be judged based on the combined performance in the following three categories:

     ? Highest Horsepower and Torque

    ? Best Streetability (lowest idle rpm, highest idle vacuum)

    ? Lowest Cost (based on MSRP of all parts)

The number calculated for each engine builder for each category will be added together. The engine builder

    with the highest overall number will be declared the winner. For example:

     Horsepower/Torque Streetability Lowest Cost Total

    Engine Builder 1: 905 -375 -273 257

    Engine Builder 2: 879 -475 -373 31

    Engine Builder 3: 1015 -425 -310 280

    In this example, Engine Builder 3 would be declared the winner.

In case of a tie, the engine builder who scored the highest Horsepower and Torque average number will be

    declared the winner. If there is still a tie, the highest Streetability number will be used, and if there is still a tie,

    the highest Lowest Cost number. If there is a tie after all three tiebreakers, the prize money will be divided

    equally among the co-winners.

Prize Ceremony

    The winner of the 2006 MoPowered Engine Builder Challenge will be announced on July 13, 2006 at the Mopar

    Big Block Party in Golden, Colorado.


    For more information, please visit or call the Mopar Direct Connection Techline at 1(888) 528-

    HEMI (4364).

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