918.437.RACE

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Radial VS. The World Rules

Updated 3/4/2014

ANY CHASSIS PERMITTED

WHEELIE BARS PERMITTED

ANY AUTOMATIC TRANSMISSION

WEIGHTS LISTED BELOW ARE FOR RADIAL ENTRY

"-100# for 29-10.5w TIRES"

"-150# FOR TT5 TIRES"

"-100# FOR 275 TIRES"

*****-100# for stock suspension (suspension for year make and model from factory only)

CLUTCH -OK

SB N/A NO WEIGHT

BB N/A 2100 LBS

SB NOS 2250 LBS

BB NOS 2700 4.840 BORE ENGINES

BB NOS 2725 LBS 5.00 BORE ENGINES

BB NOS 2750 LBS OVER 5.0 BORE ENGINES

*****-100# FOR BB CONVENTIONAL HEADS

SB SINGLE TURBO 2600LBS

SB TWIN TURBO 2700 LBS

SB PROCHARGER 2600 LBS

BB PROCHARGER 3150 LBS

BB SINGLE TURBO 3000 LBS

BB TWIN TURBO 3200 LBS

BB TWIN SUPERCHARGER 3100 LBS

*****ROOTS BLOWER 3050 LBS

ROOTS SCREW 3150 LBS

MX235 Rules

Updated 3/4/2014

Format:

* This is a 1/8 miles heads-up class run on a .400 pro tree with pro ladder. MX235 top 16 Qualifiers will run in the "Front Runner" class. If we have 8 cars that did not qualify in the top 16, we will have a "Second Chance" race.

Safety:

* All NHRA/IHRA and local track safety rules apply for driver and car, including the use of an oil retention device or an engine diaper is mandatory.

Chassis:

* Complete stock chassis and front frame rails must be retained from motor plate/shock tower to behind the rear wheel opening.

* All aftermarket front suspension components allowed.

* All replacement parts must be in stock location.* Aftermarket bolt-on replacement front K-members/sub frames are allowed.

* Struts or relocated shocks are permitted.

* All aftermarket bolt-on front ends are legal.

* Mini tubs allowed* Anti-sway bars allowed.

* Relocation of rear shock allowed.

* Rear leaf springs, springs, shocks, and coil-overs may be moved to accommodate tire clearance, and do not need to be mounted in stock location.

* Stock suspension, ladder bar, and torque arm only.

* Aftermarket 4 links prohibited.

* Absolutely no wheelie bars.

* Factory wheel base must be maintained.

Interior/Body:

* Factoring appearing (aftermarket parts are allowed) interior is required.

* Factory floor pan on driver and passenger side required from firewall to rear of door jamb.

* Firewall must be in stock location, minor modifications for Trans, etc. are fine.

* Head-lights and tail-lights must work.

*Aftermarket fiberglass or carbon fiber replacement panels will be limited to hoods, front fenders, doors, deck-lids, and bumpers only. All front ends must be factory appearance and cannot be stretched.

* No extenders or stripe takers* Lexan allowed, must maintain factory appearance.

Engine:

* Maximum displacement for all engines is 640 c.i.

* Small blocks are allowed any deck height, but must remain stock bore spacing.

* GM Big Blocks are limited to 10.2 deck height.

* Ford Big Blocks are limited to 10.3 deck height.

* Mopar Big Blocks are limited to 10.7 deck height.

Transmission:

* Any transmission permitted.

Turbochargers:

* Single turbocharger limited to 88mm maximum. (GT55-88, Pro-Mod 88, ET-R88, Comp, Bullseye or = ) mid frame turbo.

* Twin turbochargers limited to 72mm maximum.

* Turbo size will be verified by measuring the housing bore at the leading edge of the impeller wheel and must maintain the contour of the compressor housing.

* Inducer dimensions will not exceed 3.462 inches and exducer dimensions will not exceed 4.765 inches on mid frame turbos. Inducer dimensions will not exceed 3.462 inches and exducer dimensions will not exceed 5.56 inches on Large Frame turbos.

* The maximum diameter of the housing bore at the leading edge of the wheel may not exceed 2mm more than the maximum allowable.

* Inserts or reducers to achieve inlet or outlet dimensions are prohibited.

* Any type of air to air or water to air intercooler is permitted.

* Turbochargers with nitrous oxide is permitted only on 2-rotor, 4 cylinder, and inline 6 cylinder engines.

Superchargers:

* Cog or gear driven superchargers are permitted, must meet all factory inlet, outlet, and internal housing dimensions.

* Inserts or reducers to achieve inlet or outlet dimensions are permitted.

* Any type intercooler is permitted.

* F-1R or equivalent allowed.

* F-2 or equivalent allowed.

* F-2R is not legal.

* Cannot combine the supercharger with nitrous.

* Roots supercharger limited to 10-71.

* Centrifugal superchargers are permitted.

* Screw Superchargers (PSI C or D Rotor, and Whipple A980 or R980,etc.) are prohibited.

* No Methanol cooling on blower or turbo combos running E85 or alcohol.

Nitrous (General Rules):

* Multiple bottles, must Y together to a single #6 line.* Push nitrous systems are prohibited.

Small Block Nitrous:

* Permitted to run any multi-stage nitrous system.

Big Block Nitrous:

* Single Stage Fogger, must use #4 Nitrous line maximum .195 inside diameter for the fitting and the line, minimum 12 inches long attached single side of Y or at single bottle.

* Electronic Fuel Injection allowed only 8 nitrous feed lines on engine.

* Two Stage Plate allowed.

Exhaust:

* Mufflers or inserts are required on all cars except for turbo cars.

* Exhaust may exit underneath car or out the front fenders, but must not affect timing or staging beams.

Fuel:

* Gasoline, Alcohol or E-85 is allowed.

* No Methanol cooling on blower or turbo combos running E85 or alcohol.

* Alcohol must adhere to a 50 lbs. weight penalty.

* Alcohol when used in conjunction with intercoolers must adhere to a 50 lbs. weight penalty.

Tires:

* All cars with power adder must compete on a Drag Radial type tire with the following sidewall designation 235/60/15, or a 26/8.5/15 slick.

Minimum Base Weights (All minimum weights include the driver)General:

* Deduct 250 lbs. Front Wheel Drive

* Deduct 100 lbs. Mod Motor

*Deduct 25 lbs. Leaf Springs

* Deduct 50 for 2 Solenoid (1 Fuel, 1 Nitrous) 2 Spray Bar Nitrous Plate with No Line Restriction

* Deduct 300 lbs. for Inline 6 Cylinder Turbocharged/Supercharged/Nitrous Combos

* Deduct 150 lbs. for V-6 Turbocharged/Supercharged/Nitrous Combos

* Deduct 800 lbs. for 4 Cylinder Turbocharged/Supercharged/ Nitrous Combos

Small Block:

* Naturally Aspirated...2500 lbs.

* Nitrous,single stage(other stages must be capped off)...2700 lbs.

* Nitrous,in-line heads/multi stage...2800 lbs.

* Nitrous,non-inline heads/multi stage...2900 lbs.

* Single YSI/F1A/6-71 Supercharger...2950 lbs.

* Single F1C/8-71 Supercharger...3100 lbs.

* Single F1R/Xi/10-71 Supercharger...3250 lbs.

* Single F1X/F2/XB105 Supercharger...3350 lbs.

* Single 76mm T6 Turbocharger (mid frame)...2900 lbs.

* Single 80mm T6 Turbocharger (mid frame)...3000 lbs.

* Single 82mm T6 Turbocharger (mid frame)...3050 lbs.

* Single 83mm T6 Turbocharger (mid frame)...3075 lbs.

* Single 85mm T6 Turbocharger (mid frame)...3100 lbs. (Deduct 50 lbs. for 8.2 deck)

* Single 88mm T6 Turbocharger (Y2K or GT47-88) (mid frame)...3200 lbs. (Deduct 50 lbs. for 8.2 deck)

* Single 85mm T6 Turbocharger (Pro Mod 85) (mid frame)...3250 lbs. (Deduct 50 lbs. for 8.2 deck)

* Single 88mm T6 Turbocharger (GT55-88, Pro Mod 88, etc. or = ) (mid frame)...3350 lbs. (Deduct 50 lbs. for 8.2 deck)

* Single 85mm T6 Turbocharger (large frame 85)...3250 lbs. (Deduct 50 lbs. for 8.2 deck)

* Single 88mm T6 Turbocharger (large frame 88)...3300 lbs. (Deduct 50 lbs. for 8.2 deck)

* Twin 67mm Turbochargers...3250 lbs.

* Twin 72mm Turbochargers...3300 lbs.

Big Block:

* Naturally Aspirated...2700 lbs.

* Nitrous (up to 604 c.i.)...3200 lbs.

* Nitrous (605 to 640 c.i.)...3250 lbs.

Buick/Olds/Pontiac:

* Nitrous Combos will not exceed 640 c.i. and must be 3100 lbs.


I reserve the right to change to or modify the rules as necessary with no less than 3 weeks notification.

If you have any questions or you need to call for clarification, if your combo is not listed, you can contact me at 870-688-6686. Jordan Grunwald-Founder of the MX235

Points

2015   Suburban Chev Brackets    
Super Pro Car # 4-Apr
Mark Candy L402 95
Doug Wegner 4204 80
Gordon Laster E496 55
Jeff Hilderbrand 5017 55
Steve Scott 4911 45
Chase Stookey 4104 45
Susan Giles 4090 45
Jerry Grider 777 45
Brett McGinnis 4285 35
Rodney Frazier 428G 35
Shawn Battenfield SB70 35
Barbara Giles 8506 35
Veron Rowland 498V 35
Gary Wilbur 4458 35
Cody Moore 4110 35
Jon Hollis XX63 25
Tom Sanders 4734 25
Warren Backward W433 25
Corey Coffee (Slim) 4474 25
Earl Elliott 4301 25
Jerry McDaniel 4445 25
Wade Metzinger 4235 25
Marvin Nelson XX92 25
James Nolen 406N 25
Robert Sievest 409 25
Steve Smith 4021 25
Mark Talley 2890 25
     
NO Box Car # 4-Apr
Parker DeVore 4361 80
Brittany Rowland 421B 65
Shannon Cross 4426 55
Martin Brown V789 45
Aaron Fowler 1026 45
Butch Hale  455H 45
Dunn Henderson 4344 35
Shawn Wiegers 4700 35
Ken Anderson 499A 35
Steve Young 411F 35
Robert Cowden 425 25
Jimmy Denham J498 25
Abbey Metzinger 4X19 25
Owen Ratcliff 68 25
Sean Stearns 7373 25
Corey Coffee (Slim) 4474 25
Curtis Reed 3830 0
Mark Brashear 4588 0
     
Sportsman Car # 4-Apr
Cheryl Barker C461 60
Robert Cowden 425 55
Bernie Akles P487 45
Loren Green 314 35
Ray Lawson 4406 35
Harry Barker H454 25
Mercedes Sistanich 466 25
Jon Weichselbaum 3482 25
Annie Armstrong 4118 25
     
Jr Pro Car # 4-Apr
Kaylee Shepherd 4222 75
Summer Brixey 407B 70
Lauren Dodd 541 55
Wyatt Bachtell 4702 45
Tyler Lloyd 594 45
Courtney Langley 428 45
Michael Wood 4497 45
Brianna Chancey 4227 35
Blake Denham 4981 35
Trent Smith 7114 35
Lance Mason 29 35
Brayden Staab 4223 35
Kaylee Chaffin 5214 25
Allison Wood 1111 25
Andy Westphaz 4048 25
James Evans 4052 25
Ashley Guterman 4253 25
Duece Sullivan 4204 25
     
Jr Sportsman Car # 4-Apr
Conner Elliott 755 65
Gage Martin 4202 35
Emmy Shepherd 4233 25
     
Street ET Car # 4-Apr
Josh Pilcher 4772 45
Brandon Jones 444 35
Aaron Vaughan 1103 30
     
Pro ET Car # 4-Apr
Josh Pilcher 4772 75
Patrick Roetto MX590 50
Brandon Jones 444 45
Aaron Vaughan 1103 35
John Fitzpatrick 5272 35
Randall Artz 4316 35
Scott Sober 5503 35
Mike Hudson 4452 25
Ricky Martin 462 25

Tulsa Raceway Park Staff

NamePositionPhone
Keith Haney Owner/Operator, Director of Sales, Sponsorship and Advertising This email address is being protected from spambots. You need JavaScript enabled to view it.
Todd Martin Owner/Operator This email address is being protected from spambots. You need JavaScript enabled to view it.
Jimmy Boles Track Manager Cell : (918) 720-2963
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Misty Hensley Office Manager
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David Cook Facility Manager Cell : (918) 437-7223
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Deanna Hudson General Manager - Concessions Cell : (918) 232-0219
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Becky Segura Concert Manager This email address is being protected from spambots. You need JavaScript enabled to view it.
Shari Martin Controller Office : 405-759-7328
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Melissa Connelly Assistant Controller Office : 405-759-7328
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MAKO Rules

This class is intended for Stock Floor Pan, Stock Suspension, Torque Arm and Ladder Bar cars.

Cubic inch will be checked randomly at all races, there are no max limits small block, big blocks maximum 660ci. If any particular combination proves to be dominating based off of performance, weight may be adjusted based on cubic inch, or power adder.

Class will run 4 tenths Pro Tree, 1/8th Mile
All cars must be driven to the staging lanes or scales, not both (depends on how we are weighing).

Chassis

  • Stock Front frame rails and Smith Race Craft bolt on Front Ends only. Must be in stock location. Aftermarket control arms and bushings allowed, bolted in stock locations. (#1 Footnote).
  • Pre 48 cars see Footnote #3.
  • Rack and Pinion steering allowed.
  • K-Members allowed (late model Mustangs, Camaro and Firebirds).
  • After market front suspension components allowed (#1 footnote).
  • ALL replacement parts must be in stock location.
  • Aftermarket strut is allowed (#1 footnote).
  • Mini Tubs allowed.
  • Back half allowed with stipulations.
  • Stock Suspension, ladder bar or Torque Arm only.
  • Transmission may have a removable cover, it will need to be carpeted.
  • No aftermaket 4 links allowed.
  • Anti-sway bars allowed.
  • Leaf springs or coil spring may be moved in-board.
  • Relocation of rear shock allowed.
  • No wheelie bars.
  • Aftermarket Coil over shocks allowed (#1 footnote).
  • Motor Plate and Mid Plate allowed.


Body

  • Unaltered floor pan. Floor may be altered for thru the floor sub-frame connectors, etc.
  • Floor pans must be from back of front seat to firewall.
  • Firewall must be in stock location, minor modifications for trans, etc, is OK.
  • Trunk floor can be modified for fuel cell and pumps.
  • Floor pan may be notched for Ladder Bar clearance.
  • Must have working head lights and taillights.
  • Rear seat may be removed.
  • Fiberglass limited to doors, fenders, hood, trunk lid, and bumpers. Fiberglass fenders will be allowed but they must be a replacement type, IE no one piece fiberglass front ends, the parts have to be separate.
  • Aftermarket front spoiler allowed.
  • No Extenders / Stripe Takers which stick out past the bumper or leading edge of the factory part of the car.
  • Lexan allowed, must maintain a factory appearance.


Engine

  • Standard bore space blocks only.
  • Mass produced cast aluminum intakes only unless no commercially made intake is available, will need to call for approval.
  • Cast tunnel ram 2 - 4 barrels will be allowed on any engine combination add 50 lbs.
  • Mufflers required on all combinations except turbos. No Insert or Collector mufflers.
  • Fuel injection allowed.
  • No ProMag or equivalent .
  • Billet or custom fabricated heads prohibited.
  • Big Chiefs or pro stock style heads on big blocks naturally aspirated only.
  • Big block Ford and Chrysler must call for head approval 918-451-8212.
  • Alcohol allowed, Injected add 100 lbs., no intercooler allowed.
  • Alcohol carbureted blow through, no intercooler allowed.


Power Adders

Big Block Nitrous

  • Two Bottles allowed, must Y together with no shut off's before the Y, you can have a ball valve after the Y.
  • If running 2 Bottles they must both be open at beginning of run.
  • Multiple Nitrous kits, must use #4 Nitrous line maximum .195 inside diameter for the fitting and the line, minimum 12 inches long attached single side of Y or at single bottle.
  • Single Fogger allowed #6 or smaller Nitrous Line after the Y or at the bottle (Electronic Fuel Injection allowed only 8 nitrous feed lines on engine).
  • Two Stage Plate allowed #6 Nitrous Line after the Y or at the bottle.
  • No push nitrous systems.


Small Block Nitrous

  • Two Bottles allowed, must Y together with no shut off's before the Y, you can have a ball valve after the Y.
  • If running 2 Bottles they must both be open at beginning of run.
  • #6 or smaller Nitrous Line after the Y or at the bottle.
  • No push nitrous systems.


Turbos

  • Reducers measured within 1/16" of compressor wheel.
  • Reducer cannot allow air to pass behind reducer.
  • Surge Holes and/or Slots on Turbos over 84mm must be covered.
  • No Nitrous allowed with Turbo


Blowers

  • F-1R or equivalent allowed
  • F-2 or equivalent allowed with 3.875 reducer required.
  • F-2R is not legal.
  • Up to 10.71 Blower Roots type allowed No Screw or Hi Helix.
  • No Nitrous allowed with Blower


Weights

General

  • Add 100 lbs. Alcohol EFI and Mechanical Injection.
  • Add 50 lbs. Cast Tunnel Ram, 2 carburetors.
  • Deduct 25 lbs. Classic Cars ( See #5 footnote)
  • Deduct 25 lbs. Truck
  • Deduct 25 lbs. Leaf Springs
  • Deduct 50 lbs for 26" x 8.5" slicks
  • Deduct 350 lbs. Naturally aspirated
  • Deduct 250 lbs. Front Wheel Drive
  • Deduct 100 lbs. Mod Motor

Nitrous Big Block

 

  • 555ci and under 3150 lbs.
  • 556-590ci 3200 lbs.
  • 591-615ci 3250 lbs.
  • 616-638ci 3325 lbs.
  • 639 and over 3400 lbs.

 

  • Deduct 100 lbs 2 Solenoid 2 Spray Bar Nitrous Plate with No Line Restriction (1 fuel 1 nitrous solenoid)
  • Deduct 100 lbs. Buick Olds Pontiac.

Nitrous Small Block

Inline Heads Neal, Yates, SB2,
Race LS 11 degree, ect.
380ci and under 2650 lbs. 2750 lbs.
381-410ci 2700 lbs. 2800 lbs.
411-440ci 2750 lbs. 2850 lbs.
441ci and over 2800 lbs. 2900 lbs.

Deduct 100 lbs 2 Solenoid 2 Spray Bar Nitrous Plate with No Line Restriction (1 fuel 1 nitrous solenoid)

Blower

  • F-2 / 10.71 Blower big block 3450 lbs.
  • (3.875 reducer required on F-2).
  • F-2 / 10.71 Blower small blocks 3350 lbs.
  • (No Reducer).
  • F-2 / 10.71 Blower small blocks Neal Yates SB2 ect. 3400 lbs.
  • Deduct 200 lbs. F-1R or equivalent.
  • Deduct 100 lbs. 8-71.
  • Deduct 200 lbs. 6-71.


Turbo
Weights on Turbo combinations may have minor adjustments based on performance during the season, but nothing major.

  • 67mm Twin Turbos, small frame only, reducer allowed (small block) 3250 lbs.
  • Single 80mm T6 Turbocharger (small block) 3100 lbs.
  • Single 85mm T6 Turbocharger (small block) 3250 lbs.
  • Single 88mm T6 Turbocharger (Y2K or GT47-88 ) 3250 lbs.
  • Single 88mm T6 Turbocharger (GT55-88, Pro Mod 88, ET-R 88 or =) 3350 lbs.
  • Single Turbo reduced 89-94mm 3400 lbs (#2, #3 Footnotes)
  • Single Turbo reduced 95mm - 106mm 3450 lbs. (not allowed on Big Block) (#2, #3 Footnotes)
  • Neal Yates SB2 Aftermarket LS 11 degree, ect.. Add 50 lbs.
  • Big Block Add 100 lbs.


Tires

  • Mickey Thompson
  • any Slick marked to 28.0/10.5 including the W tire.
  • any Slick marked to 29.5/10.5 non W.
  • any ET Street up to the 28/13.50 or 30/12.50.
  • any ET Drag Radial no larger than 15" wheel diameter.

Hoosier

 

  • any slick marked to 29.5/10.5 [except the 18192 and 18175 tires are not legal].
  • any DOT Drag Radial no larger than 15" wheel diameter.


Phoenix

  • any slick marked to 29.5/10.5.

Goodyear

  • any slick marked to 29.5/11.0.

Safety Rules

All applicable safety rules for the track we are racing at apply.


Footnotes

  • Coil spring on upper a-arm vehicles may install aftermarket Mustang a-arm or strut type front suspension (must have approval).
  • Inlet restrictor must be mounted no farther away than the original inlet flange.
  • Turbo reducers will be measured within 1/16 of an inch of the compressor wheel fins.
  • Pre 48 model cars allowed to replace frame and suspension with typical street rod type replacementsuspensions, no round tube frames or race car 4-links allowed.
  • "Classic" Car is any Car that had the basic body platform produced prior to 1974 and a factory wheelbase over 107 inches. Example a 1981 Camaro will still be considered a Classic Car because the platform started production in 1970.


I reserve the right to change to or modify the rules as necessary with no less than 3 weeks notification

Jeff Holloway