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  1. #1
    The FABRICATOR!


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    Jul 2011
    Name
    Chris
    Vehicle
    1985 Monte Carlo SS
    Location
    southern illinois
    Posts
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    Default 2017 LTX Shootout Extreme Street PA Rules

    Extreme Street Power Adder

    Qualifying, Ladder, and Tree Information

    Limited to quickest 16 qualifiers. Sportsman Ladder. .400 Pro Tree

    Vehicle/Body Rules

    Open to all year, make, and model vehicles. All vehicles must be stock bodied and stock appearing. Aftermarket panels limited to hood.

    OEM dash required. Carpet and interior panels forward of package shelf required

    Windows must be factory style safety glass and operational. Lexan windows prohibited. All mirrors for body style claimed required.

    Minimum race weight including driver 3350lbs.

    Engine & Drivetrain Rules

    Must have LT1 based engine (Factory LT1 Block). Cylinder heads must retain the factory 23 degree valve angle and spacing, Trick Flow 21 degree heads permitted (TFS-30400008-M54). Aftermarket heads and converted small block Chevrolet heads will be permitted if they follow the above guidelines.

    Stock or stock ported intake manifold required. LT1/4 specific Edlebrock intake manifold permitted. No cutting or welding of intake manifold allowed.

    Carburetors allowed only with the use of GM Performance Parts dual plane intake manifold (24502592)

    Hydraulic roller camshafts only. Solid lifters prohibited.

    Exhaust must exit behind front seats.

    Factory PCM required. Engine must have fully functional opti-spark distributor. Stock style aftermarket opti is allowed. LS1 PCM/24X conversions allowed with a 200lbs weight penalty (opti-spark not required with 24x conversion). Aftermarket EFI PCMs are not allowed.

    Two-steps only allowed for manual transmission vehicles.

    Gasoline or E85 only.

    Rear mounted batteries must be mounted and vented per NHRA specifications and have a functional disconnect switch.

    The following transmissions are allowed without weight penalty: 700R4, 4L60, 4L60e, 4L80e and original equipment manual transmissions.

    GM TH350 & TH400 are allowed with a 200lbs weight penalty.

    Torque converters not permitted with manual transmissions and clutch activated automatic transmissions are prohibited. No trans-brakes allowed.

    Any automotive rear axle permitted.

    Power Adders

    Only one power adder from the following allowed:

    Nitrous: Single nitrous nozzle or plate systems only. Nitrous and fuel solenoids must be visible. Purge must exit engine compartment. Nitrous oxide systems may only use gasoline or E85 only for fuel enrichment circuit. Progressive nitrous controllers prohibited. NHRA permitted bottle heating only.

    Supercharger: Maximum D1SC or T-trim. Supercharger compressor wheel must be constructed of cast or billet aluminum. Exotic materials prohibited. Electronic boost controllers prohibited. Meth Injection Permitted

    Turbo Single: Maximum 76mm inducer and maximum T6 flange. Turbocharger must be of conventional impeller and housing design and type. Turbocharger compressor wheel must be constructed of cast or billet aluminum. Exotic materials prohibited. The tips of the impeller wheel may not be stepped, cut down, or notched to meet impeller tip to tip dimensions. Reducers prohibited. Electronic boost controllers prohibited. Anti Lag systems prohibited. Meth Injection Permitted

    Turbo Dual: Maximum 45mm inducer and maximum T4 flange. Turbocharger must be of conventional impeller and housing design and type. Turbocharger compressor wheel must be constructed of cast or billet aluminum. Exotic materials prohibited. The tips of the impeller wheel may not be stepped, cut down, or notched to meet impeller tip to tip dimensions. Reducers prohibited. Electronic boost controllers prohibited. Anti Lag systems prohibited. Meth Injection Permitted

    Chassis & Suspension

    Vehicles must have stock style suspension for year, make, model claimed.

    Solid engine mounts allowed. Motor plates are prohibited.

    Factory style tubular replacement components allowed. Factory style rear sway bar must mount to differential with rubber/poly bushings and solid end links are allowed.

    All brakes must be functional.

    Wheels & Tires

    Any automotive wheel permitted. Tires must have a maximum height of 28” and a maximum tread width of 10.5” for DOT bias-ply and DOT radial tires. Non DOT tires are not permitted.

    During competition passes, all vehicles will be required to weigh after each pass. Vehicles under minimum weight will be disqualified.
    Last edited by firebird_1995; 01-17-2017 at 07:48 PM.
    Chris
    1985 Monte Carlo SS
    Mods: 9:1 383 LT1, Ported Trick Flow heads, D1SC Procharger, 4L80E, 3.50 9"
    Check out the M122 MCSS build thread here!

  2. #2

    Default

    Question for race coordinators, my car would be 50lbs over min weight with the added penalties and meets all rules except the single plane rule. Car would maybe be a 10.5 area, just looking to race in more classes. Would an exception be possible?
    Correlation does not imply causation.

    Una salus victis nullam sperare salutem

  3. #3
    LTXTech Sponsor


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    Offline
    Join Date
    Feb 2009
    Name
    David
    Vehicle
    1985 Camaro Z28/1994 Firebird Formula
    Location
    MO
    Posts
    918

    Default

    The Extreme Street classes are based off of the LT1/4 intake manifolds along with other things. We will not be allowing a single plane intake manifold in these classes. You are still allowed to run in True Street, Bracket, Modified, and Outlaw classes.
    -David-
    1985 Camaro Z28 (Under Construction)
    1994 Firebird Formula - LT1/4L60e (The Daily)

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