1/8th Mile. Heads Up. 400 Pro Tree. Chip Draw.
Prepped Track. Water Burnout Only. IHRA Rules Apply.

275/28″ Tire Only (No W’s)

Any 9″ Tire Allowed

No Wheelie Bars

Push vehicles are permitted in the Easy Street class

RWD VEHICLES ONLY

Portable Battery Chargers/Generators are permitted in the Easy Street class

 

Naturally Aspirated Engines

Small Block Minimum Weight 2,600lbs

Big Block Minimum Weight 3,150lbs

632 Cl Max Permitted

 

Forced Induction *blower combo not permitted bell mouth and cannot be ducted except where noted

 

Small Block/Mod Motor/Coyote Single Cast Turbo – 3,200lbs (see below for adds)

4 Cylinder Turbo – 2,950lbs

MAX TURBO 62MM EXD 112.9

100 HP MAX NOS

 

6 Cylinder Turbo – 3,175lbs

 

TURBOCHARGER: Max cast turbo size 76mm measured tip to tip. Compressor inducer will not exceed 76mm Compressor Exducer will not exceed 102mm Turbine will be 96mm X 88mm. The Borg Warner S400SX4 S475 1.32 a/r with T6 flange fits into this category.

 

Forced Inductions carries our SPEC class spec 76/113.5 billet 96/88 Turbine unit. (Preferred part) (No reducers allowed to achieve this size and no clipped wheels) V6  and 4cyl permitted billet wheel. (See additional notes below) You may be required at any time to remove your turbo and/or your turbo cover to be checked.

 

If you are claiming NO BOOST CONTROLLER: A single line from the manifold to the wastegate only nothing else to top of wastegate or blow off valve any listed supercharged/blower – 3000

SB P1X – 3250 +25 or removal of bell mouth SB D1SC – 3075 9.5 deck combo no ducted air see additional adds below (BELL SB D1,  NOVI 2000, Kenny Bell 3.6 – 3075 SB 6-71 3100 SB V7/V30 JTB Trim 3200 SB YSI cast – 3250

(No Big Block Turbo Allowed)

 

LS7 COPO 350 SC with 2650 Magnuson Blower – 3,125 lbs

 

Small Block Nitrous Minimum Weight – 3,000lb

SB nitrous – 8.2 deck or modular 2950

   1. Jet Plate .098 Jet Max

   2. Jet Plate .073 Jet Max

Fogger .036 Jet Max

440 Cl Max Permitted

 

Big Block Nitrous Minimum Weight 3,300lb

    1. Jet Plate .088 Jet Max

    2. Jet Plate .062 Jet Max

Fogger .032 Jet Max

600 Cl Max Permitted

ADD 50LBS FOR BIG CHIEF

 

NOTE: – Maximum CID for all small block N/A entries is 480 inches. (Add 7lbs per cu in  over 470 up to 480 cu in.) – Maximum CID for all small block Boosted entries is 440 inches. – Maximum CID for all small block Nitrous entries is 450 inches. – Maximum  CID for all Big Block Naturally Aspirated combos is 632 inches. – Maximum CID for big block Nitrous entries is 600 inches. (Deduct 50 lbs. for 540 and under) – Maximum CID  for Buick, Olds, Pontiac, Mopar Nitrous combinations is 588 inches. – Buick, Olds,  Pontiac, Mopar combinations are permitted D1SC Blower/Boosted applications. Blower combo will be 440 cu in with blow thru, belt, and E85 (3200 lbs.) – Any engine in question will be measured with a P&G gauge. A correction factor of 1.5% will be used. Competitors may be asked to remove a cylinder head for bore and stroke measurements should any discrepancies arise. – All weights will be rounded down to the nearest 5lb. increment.

 

Weight plus below additions:

– Nitrous Line up to -8 permitted – Add 25lbs for any combo > 440 cubic inches and < 465 cubic inches.

– Add 25lbs. for Holly High Ram or equivalent on power adder SBF/SBC/LS

– Add 25lbs. for a nitrous controller on BB NOS / SB no weight add for nitrous controller

– Add 50lbs. for a boost controller

– Add 50lbs. for gear drive

– Add 50lbs for BBF A head and BBC SR20/Dart 20

– Add 50lbs for All SB High port, Ford TFS-R, TFS High port.

– Add 50lbs for BIG CHIEF

 

RACING FUELS: Gasoline, Q16, C-85, E-85, C12, 16, 23, 25, 45, or NO2 are the only fuels permitted. Event Tech Director reserves the right to inspect fuel at any time during competition Failure to pass Fuel Check is grounds for disallowance of the run during competition and disqualification from the event during eliminations. Fuel is checked  using various means. Samples given to Fuel Check Technical Inspectors are compared to data taken from known fuel samples provided by VP, adjusted for temperature, and within a tolerance determined by Event Tech Director. Failure occurs when the sample readings fall outside those tolerances. M1 and M5 prohibited.

 

DRIVETRAIN: 2 CLUTCH, FLYWHEEL & FLYWHEEL SHIELD Flywheel and clutch meeting SFI  Spec 1.2, 1.3, 1.4, or 1.5 is mandatory. Clutches are limited to a dual disc maximum. Flywheel shield meeting SFI Spec 6.2 or 6.3 is mandatory. Clutch must be manually operated by the driver’s foot. Electronics, pneumatics, hydraulics, or any other device may in no way affect the clutch system. The throw-out bearing must release all fingers, levers, stages, etc. simultaneously. Staged or variable release clutches are prohibited.

 

MANUAL TRANSMISSION: OEM or aftermarket transmissions with a maximum of 5 forward speeds permitted on N/A combinations only. Clutchless models permitted. Any gear change must occur from direct action by the driver. Pneumatic, electric, hydraulic, etc. shifters prohibited. Torque converter is not permitted with this type of transmission. Manual transmissions must utilize SFI approved bell housing.

 

AUTOMATIC TRANSMISSION: Any OEM or aftermarket automatic transmission is permitted. Lock-up style transmission and/or torque convertors are prohibited unless OEM equipped (i.e. A.O.D.). The use of transmission-to-engine adaptors is permitted. The use of trans-brakes is permitted. Pneumatic, electric, hydraulic, etc. shifters permitted.

 

FRONT SUSPENSION: Factory type front suspension only. Coil over shocks are allowed. Aftermarket replacement control arms are allowed. Aftermarket K Members/Commercially available sub-Frames allowed. (Must have prior approval from  tech) Strut towers must be in factory location with factory sheet metal attaching factory frame rail to top of strut tower, can be notched, windowed, or trimmed for header clearance but must maintain factory sheet-metal attachment.

 

REAR SUSPENSION: Stock-type and ladder bar rear suspension systems are permitted including COPO, CRC, Cobra Jet, and Drag Pack vehicles. DXP Cross-over permitted any rear suspension but must maintain all parameters of DXP Street Rules set including tire if back halfed.

 

WHEELIE BARS: The use of wheelie bars is prohibited.

 

FRAME: CHASSIS; All vehicles must have a chassis that meets the guidelines set by SFI for their respective speed and elapsed time. A valid IHRA/NHRA/WDRA serialized sticker is mandatory at an IHRA Member Track.

 

FRAME: Stock frame required from just fwd of the shock tower/a-arm mounting to the back of the rear wheel tub. Back-halved cars are prohibited. Front and rear sub frames may be joined together. Horizontal and vertical notching of rear frame rail is permitted for tire/rear end clearance.

 

WHEELBASE: Entries must retain stock wheelbase dimensions of + or – 1 inch. Maximum wheelbase variation from left to right is 1 inch.

 

GROUND CLEARANCE: A minimum of 3 inches from the front of the vehicle to 12 inches behind the front spindle centerline is mandatory. A minimum of 2 inches for the rest of the vehicle is mandatory (except for oil pan and exhaust headers).

 

UPHOLSTERY: Interior must maintain a factory upholstered appearance. OEM dashboard is required and can be made of fiberglass or carbon fiber. Any aftermarket racing style seat is permitted. Driver’s seat must be located in the stock location. Passenger seats are not required. Door panels are required. Floor and transmission tunnel where visible must be carpeted or upholstered.

 

STEERING COLUMN/WHEEL: Aftermarket steering columns and steering wheels are permitted.

 

PEDALS & PEDAL LOCATION: Stock type pedals/linkage is required.

 

FIREWALL: Stock, factory firewall is required. Notching and smoothing of the firewall is permitted but must be identifiable as being in the factory location. Factory OEM fiberglass firewalls (Corvette) are permitted to replace the factory firewall with a minimum of .024 thick steel located in the factory location.

 

WINDSHIELD & WINDOWS: OEM glass or IHRA/NHRA approved Lexan is required.

 

FLOOR: Stock floor in stock location is required under driver and passenger seats. Flat area of floor-pan behind seat area and rearward may be replaced with a minimum of .024-inch thick steel or .032-inch aluminum. All entries are allowed a removable trans-tunnel.

 

BRACKET RACING AIDS: The use of any bracket racings aids such as optical sensors, delay boxes, shutter boxes, throttle stops, etc. are prohibited. The use of any device (electrical or mechanical) that allows a driver to ascertain the position of their vehicle to the starting line is prohibited.

 

ALL EASY STREET RULES ARE SUBJECT TO CHANGE BEFORE THE NEXT RACE ON SCHEDULE!