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2013 RACE RULES

                                      

2016 TRUE STREET 275 RULES PACKAGE
1/8th mile Eliminator
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 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. Factory floor must remain under driver and passenger seat area, forward of the rear door jamb. All front ends must be of factory dimensions and cannot be lengthened and must meet all NHRA/IHRA height. (See ground clearance note below). Race car lettering limited to windows, side of cowl hoods, side of hood scoops, side of rear wings and front chin spoilers, to maintain street type appearance.
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, Carbon or Fiberglass dash accepted.
ELECTRICAL:
Optical devices and magneto ignitions are prohibited. All entries MUST have operational head lights and tail lights. Davis Profiler PROHIBITED !!!!
ENGINE:
Aftermarket blocks and cylinder heads are allowed. All entries must utilize a single carburetor cast intake manifold (see inductionsection below). Motor plates and solid mounts are allowed. Engine must be in stock location. Mufflers are required on all vehicles (except turbocharged combos). All SB power adder engines are limited to 440 cubic inches. SB N/A up to 480 cubic inch permitted with added 7 lbs. per cubic inch over 470 and BB N/A limited to 632 and BOP power adder limited to 540. BB Ford, Chevy and Mopar NOS ENTRIES LIMITED TO 590” with Stock Valve Angled Heads. (JET LIMITED. See NOS section for details). 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.
BB NOS HEADS are conventional style only with factory valve angles and factory style aluminum intake manifolds.
Allowed BBF heads: CJ, P-51, SCJ
BBC : No Big Duke or Big Chief style Heads allowed. All Heads must be of a Factory Degree and Valve Angle. Bowtie style, Dart, etc. are allowed.
INDUCTION:
Small blocks, Mopar , BOP, and BB N/A combinations may use a "Commercially available/mass produced 4150 or 4500 series cast intake only" No 8500 series throttle bodies or stretched dominators - The Holley LS EFI ram intake is permitted. Small Block N/A may use cast tunnel ram/sheet metal/dual carbs w/weight penalty (See*below) Mod motor permitted aftermarket ram or billet intake.
POWER ADDERS:Nitrous limited to SB and BOP/Mopar BB entries - Progressive nitrous controllers are allowed. Entries must utilize a single stage nitrous plate with one nitrous, one fuel and one redundant purge solenoid. Cross bar plate on BB (BOP permitted #6 from bottle to solenoid) entry limited to #4 single line from #4 bottle nut to #4 fitting @ solenoid. BB Mopar/BOP entry permitted single stage, single bar plate with #6 single line from bottle to solenoid. Single 10 or 15lb bottle on with a maximum #6 line size from bottle to solenoid. FOGGERS PROHIBITED. Foggers must be disconnected and all solenoids must be capped off. Cold Nitrous prohibited. Push systems prohibited. Nitrous plates using fogger nozzles prohibited.
BB’s under 560” limited to Single .100 Jet or 2x .072 on a Cross Bar Plate.
BB’s 560” to 589” limited to Single .082 x 2x .057 on a Cross Bar Plate.
(BB Jet Rules subject to Adjustment as deemed necessary to keep parity in the class)
Turbocharged (mid frame turbo only 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 – 18DEGREE MOPAR - FACTORY HEADED SMALL BLOCK FORD MOD MOTOR - LS CHEVY 15 DEGREE - GEN III Hemi SBM - TFS-R Head)
** NOTE: SB Chevy 23 degree Raised Runner – SB Ford 20 degree (SR20 –FT1 or T1RI or equivalent) not permitted with boosted combo
FUEL:
Pump gas, E85, M1, Q16, and C12/16/23/45 NO2 or equivalent racing fuel. M5 Prohibited
TRANSMISSION:
Any OEM style automatic or OEM manual transmission is allowed with power adder. Automatic Transmission must run an SFI Bell Housing. SFI Trans Shield, Blanket or Case Required. Clutch assisted/clutch-less manual transmission allowed on N/A. Manual transmissions must utilize SFI approved bell housing.
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. Corvette permitted any type of transverse leaf spring rear suspension. Wheelie bars are prohibited on all cars. Late model GTO permitted torque arm or ladder bar w/ additional weight (see below)
FRONT SUSPENSION:
Factory type front suspension only. Coil er 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 complete factory sheet metal attaching factory frame rail to top of strut tower.
WHEELS/TIRES:
A maximum of a 28 x 10.5 non W slick (N/A small block only), 28 x 12.50 ET Street or any 275 radial may be used on N/A. Power Adders limited to a P275/60-15 Mickey Thompson Tire P/N 3754R or P/N 3753 radial tire. Mickey Thompson P/N 3754X permitted with additional 100#’s added. Wheel width is limited to 12".
NITROUS WEIGHTS:
AMC - 3050
Base NOS SB weight – 3150
Mopar BB conventional B1 head/BOP combo - 3300
Any canted valve head - 3200
Any non-raised runner 23 degree combo – 3000
Any raised runner 23 degree combo – 3100
Blue Thunder Cylinder Heads 4.3 - 3250 / 3.6 - 3125
C3/C302B/C302/Yates style -3050
D3 Yates Style - 3150
Any 20 degree ford – 3050
Any 20 degree high port SR20 –FT1 or T1RI or equivalent - 3100
TFS-R Ford – 3000
BB NOS under 560” – 3200
BB NOS 560” – 590” – 3250
SUPERCHARGER WEIGHTS:
F1A - 3100
F1C- 91 series – 3050
YSI – 3150 (add 50 lbs. for new billet wheel)
4.0L - 3150
TURBO WEIGHTS:
T-76 Cast 3100 – Gas or M1
T-76 Billet Gas - 3150 M1 - 3200
T-80 CAST ONLY - Gas - 3200 M1 - 3250
PRECISION 80MM TURBO PROHIBITED !!!!!!!
N/A WEIGHTS:
N/A Inline head – 2650
N/A Non-Inline head – 2750
N/A Buick/Olds/Pontiac - 2975
N/A (big block with 9.8 standard deck height and conventional head) 3000 lbs. (add 2.5 lbs per cu in over 589)N/A (big block Ford with standard deck height and conventional head) 3000 lbs. over 589 add 100 lbs.
N/A (big block with tall deck height and conventional head) 3050 lbs. over 589 add 100 lbs.
N/A (big block with 9.8 standard height and big chief head) 3100 lbs. (add 2.5 lbs per cu in over 589)
N/A (big block with tall deck height and big chief head) 3125 lbs. over 589 add 100lbs.
N/A (big block Ford with standard deck height and non-conventional head) 3125 lbs. over 589 add 100 lbs.
GENERAL:
- No Billet cylinder heads/blocks
- No Billet wheels on 80mm turbo combo (add 50lbs for 76 w/billet wheel)
- No Reducers on turbo or supercharged combo
- Alcohol/E85 legal (meth injection legal on non-intercooled combo only)
- All turbochargers (mid frame GT47 or S400 chassis only) must be as manufactured from factory (GT47-
76/S400/GT47-80/S480 w/cast wheel - GT47/S400-76 w/billet wheel)
- Cast compressor inducer cannot exceed 80.7 mm and the compressor exducer cannot exceed 116 mm
- 80.7/76.5 mm compressor wheels must be "as-cast" (billet permitted on 76 mm with weight penalty)
- Turbine wheel must not exceed 96.2 mm x 88.3 mm
- All turbochargers and blowers will have the compressor cover removed for tech inspection and will be sealed by tech. Anytime Seal is broken, they will be re-measured and re-sealed !
- No muffler required on turbo entry, required on all other combos
- No bull horns - front exit exhaust permitted but must not effect timing equipment
- Leaf Springs deduct 50 lbs.
- Gear driven supercharger allowed
- Belt driven supercharger deduct 50 lbs.
- Boosted GEN III Hemi SBM add 50 lbs.
- Non Intercooled boosted combos deduct 50 lbs. (no deduct if on Alcohol for fuel)
- Late model GTO permitted ladder bar or torque arm add 50 lbs.
- Cast Tunnel Ram/Sheet Metal/Dual Carbs on SB N/A add 50 lbs.
- Single 4150 carb/throttle body deduct 50lbs (N/A or NOS only)
- N/A may deduct 100 lbs if using M/T 3754R tire
- V6 - I4 - I6 entries deduct 200 lbs.
- 8.2 deck nitrous combo deduct 200 lbs.
- Single entry 1 NOS/1 Fuel or e NOS (dry system) plate deduct 50 lbs.
- 4 NOS Jet dry plates add 50 lbs.
- 2 NOS Jet dry plate not eligible for single entry plate deduction
- COPO permitted aluminum block
- Any NITROUS SMALL BLOCK COMBO 441 to 465 ci add 2 lbs. per cubic inch over 440.
- Blown/BOOSTED Combo’s NOT permitted over 440 cid.
Safety:
Engine Diaper MANDATORY. All ballast must be secured with a minimum of 2 3/8” grade eight bolts. (Tech will have final say on ballast mounting). . On Board Fire System Mandatory. Minimum 5lb System. All holes in Firewall to be covered ( must be of sheet metal or aluminum). Must have Rear Firewall separating Driver’s Compartment from Trunk Area. All Lose items must be removed from interior floorboard,
Fire Suits – SFI 3/2A-5 Suit (Jacket and Pants), Gloves and Shoes MANDATORY if using racing gas. SFI 3/2A-15 Suit (Jacket and Pants), Gloves and Shoes required if using E85 or M1. NO EXCEPTIONS. Head Sock and or Helmet Skirt recommended.
Helmet – Snell 2000 or better helmet MANDATORY.
Roll Cage – Must be 8.50 NHRA or IHRA Certified 10 Point Mandatory. SFI Approved Window Net Mandatory.
Seat Belts – Minimum 5 Point system required. Maximum 4 years old.
Master Disconnect – Must be in plain sight and labeled On – Off . No Switches hidden under Gas Door Lids or License Plates.
There will be NO GRACE PERIOD on Safety Items. You either have the right stuff or you don’t race!!! NO EXCEPTIONS.




                       
PRO 275 RULES

 

                                      Rules for Boostfab LS vs Modular shootout


1. All entries must have current tags, registration and inspection. 
2. All vehicles must have working head lights, tail lights, turn signals and brake lights. 
3. All RWD vehicles must use Radial tires, No slicks allowed. M/T Pro's ok. 275/60 max tire size 
CLUTCH ASSISTED RWD MANUAL CARS SEE #7

All entries must complete entire competition with same tires, no tire changes allowed. 
4. All blower/nitrous cars must run mufflers- turbo cars no muffler ok

6. no 6 bolt heads for LS's before, LS cars stock block only

5. No wheelie bars

6. Heads up- Pro Tree- 16 car field. 

7. All CLUTCH ASSISTED manual transmission cars allowed up to 28x10.5 bias ply slick. All other rules apply to this, must drive on this tire for duration of race. 
Event will be started with drivers meeting. Attendance mandatory for all drivers. Following Drivers meeting, all entries will be required to drive non stop from track to destination to be announced in meeting(location undecided but will be in the I40 area). After leaving track premises, Hoods may not be opened. All entries required to complete drive back to track with no stopping for vehicle maintenance or changes. Stopping will result in immediate disqualification. Upon arrival back at track after street driving, all entries will directed to staging lanes and be allowed 15 minute cool down period. During this time hood must remained closed! Opening hood will result in disqualification. Tire changes after driving portion not permitted. Entries will be allowed to add fuel, add intercooler ice etc as long as hood stays closed. Vehicles must remain in staging lanes for entire cool down period. Each car will be given 1 qualifier and allowed to return directly to staging for 2nd qualifier under same rules base. 2nd qualifying attempt not required. After both rounds of qualifying have been completed, eliminations will continue with all other classes.




                       

                                                        
                                                           


                           
         
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