Ultra Street 2017 Rules

Transcription

1 Ultra Street 2017 Rules BODY: Fiberglass/Carbon body panels are limited to hood, rear deck lid, fenders, doors, and bumpers. Cowl hoods may not be taller than half way point of the windshield. Forward facing scoops are prohibited on power adder combos (permitted for NA only) unless factory installed or less than 5 inches from flat area of hood. Inlets for turbochargers and superchargers must not be exposed to ram air and pass a "line of sight inspection" from the front of the vehicle, I.E. they must be blocked off from a source of air this includes closing off factory holes/grills. Factory floor must remain under driver and passenger seat area, forward of rear door jamb. All front ends must be factory dimensions and cannot be lengthened and must meet all NHRA/IHRA height. (See ground clearance note below). GROUND CLEARANCE: Minimum 3 inches from front of car to 12 inches behind centerline of front axle, 2 inches for remainder of car, except oil pan, oil retention device, and headers. INTERIOR: Aftermarket steering columns are allowed. Factory type dash accepted. Must have carpet. Aftermarket stock appearing parts are permitted. ELECTRICAL: Optical devices and magneto ignitions are prohibited. Must have working head lights and tail lights. ENGINE: Aftermarket stock bore space blocks and cylinder heads are allowed. All entries must utilize a single carburetor cast intake manifold. Motor plates and solid mounts are allowed. Engine must be in stock location. Mufflers are required on all vehicles (except turbos). All SB power adder engines are limited to 440 cubic inches. SB N/A limited to 480 cubic inch (with added 7 lbs. per cubic inch over 470) and BB N/A limited to 632 BOP/BB Mopar power adder limited to 588. BB Ford/BB Chevy Nitrous combos max ci 588 with conventional heads only (stock valve angle) single stage only with one nitrous jet (Up to jet, jet) BB Chevy Nitrous limited to a 9.8 deck height only and BB Ford limited to a 10.3 deck height only A engine in question will be measured with a P&G gauge. 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. No Billet cylinder heads/blocks (MUST BE STOCK BORED SPACING). COPO permitted aluminum block (must have run NHRA SS to be legal)

2 INDUCTION: Small blocks, Mopar, BOP, and BB N/A combinations must use a commercially available/mass produced 4150 or 4500 cast intake only. No 8500 series throttle bodies or stretched dominators (The Holley LSE FI ram intake permitted) Mod motor permitted aftermarket ram or billet intake. POWER ADDERS: Progressive nitrous controllers are allowed. Entries must utilize a single stage nitrous plate (BB NOS single bar plate only) with one nitrous, one fuel and one redundant purge solenoid. Cross bar plate on BB Mopar (BOP permitted #6 from bottle to solenoid) entry limited to #4 single line from #4 bottle nut to #4 fitting at solenoid. BB Mopar/BOP entry permitted single stage, single bar plate with #6 single line from bottle to solenoid. Maximum #6 line from bottle to solenoid 8.2 deck SBF combos permitted single stage fogger. Single bottle on with a maximum #6 line size from bottle to solenoid. Purge line must clearly exit the hood/cowl or body in a fashion to not allow purged nitrous to enter the engine when racing. Foggers must be disconnected and all solenoids must be capped off. Nitrous plates using fogger nozzles are not allowed. Cold nitrous prohibited Push systems prohibited Turbo (mid-frame turbo see list below) and supercharged (must be unmodified from manufacturer) entries are limited to stock valve angle SB combos only. (SB CHEVY 23 DEGREE - SB FORD 20 DEGREE 18 DEGREE MOPAR - FACTORY HEADED SMALL BLOCK FORD MOD MOTOR - LS CHEVY 15 DEGREE GEN III Hemi SMB TFS-R Head TRICK FLOW 245 LS1 CATHEDRAL PORT HEAD) NOTE: SB Chevy 23 degree RR SB Ford 20 degree (SR20 FT1 or T1RI or equivalent) not permitted with boosted combo. No Reducers on turbo or supercharged combo All turbos and superchargers must be as manufactured from factory Gear driven supercharger allowed No modifications to entire front end to expose fresh air inlet on turbo. EXHAUST: No muffler required on turbo entry Mufflers required on all non-turbo combos Bull horn are permitted Forward facing exhaust permitted but MUST NOT effect timing equipment or staging beams OILING SYSTEM: Dry sump oiling systems are permitted on all cars All cars must have an oil retention device or engine diaper TRANSMISSION: Any type of transmission is allowed FRONT SUSPENSION:

3 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 tech director) Strut towers must be in factory location with complete factory sheet metal attaching frame rail to top of strut tower. REAR SUSPENSION: Stock type rear suspension or ladder bar only. Coil over shocks are allowed. Anti-roll allowed. Aftermarket replacement control arms are allowed. Stock frame rails must be in factory location, notching permitted. N/A cars/trucks permitted ladder bar suspension without weight penalty Wheelie bars are prohibited on all cars. Corvette permitted any type of transverse leaf spring rear suspension. Late model GTO permitted torque arm or ladder bar w/ additional weight (see weight variances) FUEL: Pump gas, E85, M1, Q16, Alcohol, and C12/16/23/45 NO2 or equivalent is permitted M5 or any Nitro based fuel Prohibited Meth injection legal on non-intercooled combo only WHEELS/TIRES: Power adder combos may run 26 x 8.5 slick or x 15 radial PN:MT3754R or Hoosier PN: or MT PN: 3453 ET Street SS 26 x 8.5 or 235/60-15 drag radial are permitted on any combo N/A LEGAL TIRES: 3754X 275/60-15 Radial Pro 3055S 28 x 10.5-Stiff Wall Bias Ply Slick x 10.5 Standard Bias Ply and any of the listed POWER ADDER LEGAL TIRES Wheel width is limited to 12"

4 Minimum base Weights (All minimum weights include the driver): **Nitrous: AMC 3000 lbs. Inline non-stock valve angle head 3075 lbs. Mopar BB conventional B1 head 3075 lbs. Any canted valve head 3100 lbs. Any non-raised runner 23 degree combo 2950 lbs. Any raised runner 23 degree combo 3050 lbs. Blue Thunder Cylinder Heads lbs. Blue Thunder Cylinder Heads lbs. C3/C302B/C302/Yates style lbs. Any 20 degree Ford 3000 lbs. Any 20 degree high port SR20 FT1 or T1RI or equivalent 3050 lbs. TFS-R Ford 2950 lbs. Big Block nitrous Up to 540 (9.8 deck) 3150 lbs. Big Block nitrous (9.8 deck) 3250 lbs. Supercharger: F1A - 91 series lbs. (-94 series add 100 lbs.) F1C- 91 series 3100 lbs. (-94 prohibited) YSI Supercharger 3050 lbs. (deduct 50 for cast wheel) 4.0L NHRA SS COPO 3300 lbs. (Must have run NHRA SS to be legal) Turbo: T-76 Turbo 3000 lbs. T-80 Turbo 3150 lbs. Naturally Aspirated: N/A Inline head 2550 lbs. N/A Non-Inline head 2650 lbs. N/A BOP 2850 lbs. N/A (big block with standard deck height and conventional head) 2850 lbs. (add 2.5 lbs. per cu in over 589) N/A (big block Ford with standard deck height and conventional head) 2850 lbs. over 589 add 100 lbs. N/A (big block with tall deck height and conventional head) 2900 lbs. over 589 add 100 lbs. N/A (big block with standard height and big chief head) 2950 lbs. (add 2.5 lbs. per cu in over 589) N/A (big block with tall deck height and big chief head) 2975 lbs. over 589 add 100 lbs. N/A (big block Ford with standard deck height and non-conventional head) 2975 lbs. over 589 add 100 lbs N/A (big block GM with Symmetrical port and non-conventional head) 3000 lbs. over 589 add 100 lbs. N/A (big block Ford with Pro Stock/Symmetrical type cylinder head) 3050 lbs. over 589 add 100 lbs.

5 Weight Variances: Deductions Belt driven supercharger deduct 50 lbs. Non Intercooled boosted combos deduct 50 lbs. (no deduct if on Alcohol for fuel) Single 4150 carb/throttle body (N/A and NOS only) deduct 50 lbs. V6 I4 I6 entries deduct 200 lbs. 8.2 deck nitrous combos deduct 150 lbs. Rear coil spring in stock location deduct 50 lbs. Single entry 1 NOS/1 Fuel or single NOS (dry system) plate ANY SB or Mopar/BOP BB ONLY deduct 50 lbs. 2 NOS Jet dry plate not eligible for single entry plate deduction N/A using M/T 3754R tire or 3453 tire (except Pro Stock type cylinder head) deduct 100 lbs. Additions Boosted GEN III Hemi SBM add 50 lbs. Trick flow 245 LS1 cathedral port head add 75 lbs. Late Model GTO with ladder bar or torque arm add 50 lbs. Cast tunnel ram/sheetmetal/dual carb on SB N/A add 50 lbs. 4 NOS Jet dry plates add 50 lbs. ATTENTION BIG BLOCK NITROUS COMBOS: Plate will be pinned and sealed after tech inspection. or call Rich in advance if you do not understand the rules, need clarification or have questions. If any combinations appears to have an advantage, rules may be changed at the race director s discretion, at any given time, in order to keep a level playing field for all competitors.