“There is a power street class, and a turo 6 class. There are no min weights in the sportsman classes, but they can’t be cut up or lightened.
Powerstreet is for 1 power adder 4 cyls., and n/a 6 cyl cars.
Turbo 6 is for turbocharged 6 cylinder motors.”
I talked to NDRA tech and that is what he told me. Griz you should be under most cars in turbo 6 by about 1000lbs(example: supras, 3Kgt, R32 VW’s, etc)
pm’s or call there shop 724-925-2660
unlike, most of the other posts on this board. This is actually useful information.
yeah… at least there is info behind it.
so are they saying you aren’t allow to reduce weight in any way?
thats what im not sure of… I dont know if your just not allowed to alter the structural integrity of the car to make it lighter by cutting stuff up. Or if they mean doing anything i.e carbon hood, light wheels, light seats, remove airbag…etc.
I thought the R32 VW was NA
like this one?
it is. 3.2 liter vr6.
sam,
any tire restrictions?
and what is “competitve” in the class. .
why is the Griz is turbo 6? Did i miss something? Something that starts with an RB?
well since you are FWD in power street which will be what I am runnin. you have to use a non- bias ply drag radial with a max. size of 235/60/15 I do believe. Jim Hucks did well in the class last year and was runnin mid to low 11’s with one power adder on BFG 225/50/15(tire most choose)
as for kolars question there is no minimum weight so you can strip it down a lot but must retain carpet, seats, air bags, etc and you can’t chop the car up. it has to retain the factory unibody.
kolar you can run turbo 4 if you get some slicks or will be in 10’s on the et streets(NDRA’s version of sportFWD but allowing RWD vehicles)
I will DL the rule book and post it on here.
it is but there are a few out there that are pretty serious turbo cars in this class. the HPA R32 comes to mind
you can do a hood, wheels, seats, ac, ps, etc but it has to look and act like a street car for the most part
1.6> TURBO 4 Engine diaper and SFI approved 38.1 head and neck restraint system required for all 9.59 and faster cars. •SPONSOR DECALS: All racers must have series and or class sponsor decals as required by NDRA. Competitors can utilize a competing sponsor product / logo. • CLASS: The class designation (T/4) must be on the right side and the front window in 3-inch tall letters. • NUMBERS: Car numbers must be on the right side window in 6-inch tall numbers, and the front windshield in 3 inch tall numbers. • BODY: Stock import or domestic compact car or truck body must be retained. Lightweight parts limited to hood, fenders, rear deck lids /hatchbacks, and ground effects only. Due to most sunroofs not being safety glass, sunroof plugs
allowed. Cutting or drilling of body or chassis is limited to front bumper support to allow for installation of turbo intercooler, and rear bumper support may be removed. Removal of other components for purpose of lightening vehicle prohibited. However the fender wells maybe trimmed for tire clearance a maximum of 1 inch. Chop tops not allowed. Lexan or Plexiglas windows are prohibited. No tape can be used to join/cover body seams. Body or paint damage incurred at that event can be fixed by any means for remainder of the event. • INTERIOR: Door panels, dash, headliner and carpet must remain in place. Passenger seat and back seat plus all interior trim from driver’s seat back can be removed. Doors must work from inside and outside of vehicle. Windows and door switches must work and be located as designed by manufacturer. Cars will be re-inspected on the return road any cars found missing required components shall be disqualified. Stock steering column and turn signals most be retained. • ENGINE: Reserved for 4 cylinder entries equipped with a turbocharger, a nitrous oxide system or for those vehicles with superchargers
and motor swaps for a total of up to two power adders. Engine must be the some make as vehicle racing. Bolt on modifications only. Aftermarket cams, headwork, valves, cam gears and other internal modifications allowed. Motor-swaps plus ONE power adder allowed. Approved aftermarket blocks allowed. No air-cooled entries. Motor swaps count as one power adder. Cars that come stock with several engine combinations will not be considered to have a swap if the motor was one of the available options. I.e. 1996-2000 Honda Civic came stock with a D15, D16, and B16 motors. • CYLINDER HEADS: Must be commercially available, produced in runs of 500 or more. No billet cylinder heads. Any internal modification permitted. • INDUCTION SYSTEMS: Any commercially available induction may be used, but stock configuration must be retained. Ex: Fuel injected entries must remain fuel injected, with the same type of injection used as delivered stock. Example: if the car is delivered from the factory in a single throttle body configuration it must remain as a single throttle body.
• NITROUS: Bottles must be stamped 1800-psi minimum. Bottles must be mounted directly to the body, utilizing all mounting points. Electrical bottle heaters allowed. NOTE: NO EXTERNAL FLAME HEATING OF BOTTLE ALLOWED. Blow down tube is required if bottle is inside passenger compartment. • EXHAUST SYSTEM: NDRA does not require mufflers for racing however, check with track, as some tracks have a noise ordinance, which requires a muffler for Saturday racing. Catalytic converters may be removed. • DRIVE TRAIN: FWD, or AWD, or RWD entries. Stock drive train configuration required. Stock rear end must be used, rear end must be of same make and model. * Rear ends: O.E. bolt in differential casing allowed. No aftermarket substitutes allowed. Examples (8.8”, 9”, or 12 bolt). If vehicle comes stock with I.R.S., vehicle must stay that way for competition. • TRANSMISSION: Factory available OEM manual gearbox / with an H-Pattern shifter or factory automatic transmission allowed. Modifications limited to what fits completely
within stock transmission and bell housing. Scatter-shield required if 11.99 or quicker. See section 4.15 for additional details. No aftermarket Transmissions of any kind allowed. Absolutely no trans-Brakes allowed. • CLUTCH/FLYWHEEL AND FLYWHEEL SHIELD: After market clutch and flywheel shield required if car is running 11.99 or quicker. See section 4;13 and 4;16 • CHASSIS: Full stock chassis (Full stock floor pan) required. A roll bar is mandatory in all cars running 11.49 or quicker and in convertibles running 13.99 or quicker. Any vehicle equipped with a roll bar must be equipped with a padded head protector to be placed behind the driver’s head mounted in such a way so as to help minimize the risk of whiplash. The cage or roll bar must also be fitted with padding in any area where it may come in contact with the driver’s helmet. Padding with ¼ inch compression or padding meeting SFI Spec 45.1 padding or better shall be used. No other forms of padding will be accepted. • SUSPENSION: Must use one shock per wheel, or retain original style suspension. Coil-over shocks allowed. No wheelie bars allowed. Stock
shock towers must remain completely intact front and rear. Roll bar may be attached to shock towers. Stock pieces may be strengthened. REAR: Entire rear sub frame structure must remain intact. The entire rear portion of the strut mount must also remain intact. Lower control arm alterations limited to lengthening or strengthening. Back half conversions not permitted. • WHEELBASE: Stock wheelbase must be retained. • IGNITION SYSTEM: Aftermarket crank triggers, two-step rev limiters, ignition amplifiers, spark computers or dynamically adjustable engine management systems and piggyback engine management systems are allowed. Stand-alone systems allowed. • LIGHTS/STREET EQUIPMENT: Headlights, turn signals, horn, and taillights must be retained in stock condition. One headlight can be removed for air induction. • BRAKES: All cars must have four working hydraulic brakes, and in good working order.
• COOLING SYSTEM: No electric water pumps. Electric fans allowed. Must use overflow/catch can 1-pint minimum. NOT be mounted in front of tires or with overflow line pointed at tires. • TIRES/WHEELS: Slicks OK on all FWD cars. AWD cars with 1 power adder allowed slicks, AWD cars with 2 power adders allowed DOT APPROVED street tire only. RWD cars allowed only DOT approved street tires. Cars running 11.99 or quicker must have metal valve stems. Tubes permitted. NOTE: “ABSOLUTELY” NO MINI SPARE TIRES OR NON-SPEED RATED TIRES MAY BE USED. • FUEL: Gasoline only. Fuel cells allowed, fuel cells must be covered or separated from the drivers compartment, but can not be in the engine compartment. • DRIVERS LICENSE: State, or Federal, or International drivers license mandatory. • COMPETITION LICENSE: NOTE: A VALID COMPETITION LICENSE MANDATORY FOR CARS RUNNING 9.99 AND QUICKER AT A NHRA TRACK AND 9;50 AND QUICKER AT A IHRA TRACK. (NO EXCEPTIONS!)
• DRIVERS SAFETY EQUIPMENT: Any vehicle equipped with a roll cage or roll bar must be equipped with a padded head protector to be placed behind the driver’s head mounted in such a way so as to help minimize the risk of whiplash. The cage or roll bar must also be fitted with padding in any area where it may come in contact with the driver’s helmet. Padding with ¼ inch compression or padding meeting SFI Spec 45.1 padding or better shall be used. No other forms of padding will be accepted. • HELMETS: Drivers of cars 13.99 or quicker must use a helmet that is Snell, 90, 95, 2000 SFI 31.1, 31.2, 41.1 or 41.2 spec. Any helmet that is modified in any way other than paint jobs shall be deemed unsafe and not suited for competition. Drivers must be wearing their helmet prior to entering the burnout area. The NDRA requires the use of Full Face Helmets and strongly recommends the use of the proper visor as well… • CLOTHING: 10.00-11.99: Drivers must wear jacket meeting SFI 3.2A/1. • SEAT BELTS: All cars THAT REQUIRE a roll bar must use a 5-point SFI 16.1 driver restraint system equipped with a quick release system. Belts
must be mounted to the frame or cross member or in a reinforced mounting point so that all connections are in a direct line with the direction of the pull. CARS REQUIRING a SFI 16.1 DRIVERS RESTRAINT System must HAVE THE BELTS updated 2 years FROM THE DATES STAMPED ON THE SFI BELT TAGS. Cars using OEM type seats may route the crotch strap in front of the seat rather than through a hole in the base cushion.
1.7> POWER STREET • SPONSOR DECALS: All racers must have series and or class sponsor decals as required by NDRA. Competitors can utilize a competing sponsor product / logo. • CLASS: The class designation (PW/S) must be on the right side and the front window in 3-inch tall letters. • NUMBERS: Car numbers must be on the right side window in 6-inch tall numbers, and the front windshield in 3-inch tall numbers. • BODY: Stock import or domestic compact car or truck body must be retained. No cutting of fenders to fit larger tires. Lightweight parts
limited to hood, fenders and ground effects only. Due to most sunroofs not being safety glass, sunroof plugs allowed, but must work as original sunroof did. No cutting or drilling of body or chassis or removal of other components for purpose of lightening vehicle prohibited. However the rear bumper supports may be removed. Chop tops not allowed. Lexan or Plexiglas windows are prohibited. No tape can be used to join/cover body seams. Body or paint damage incurred at that event can be fixed by any means for remainder of the event. • INTERIOR: All interior, Seats, Door panels, dash, headliner and carpet must remain in place. Doors must work from inside and outside of vehicle. Windows and door switches must work as designed by manufacturer. Cars will be re-inspected on the return road; any cars found missing required components shall be disqualified. Stock steering column and turn signals most be retained. • ENGINE: Reserved for overhead cam4 cylinder, 6 cylinder, or 2 rotors naturally aspirated entries only. 4 cylinder entries are allowed 1 power adder, but must run drag radials. Engine must be
the some make as vehicle racing. No turbo, no supercharger and no nitrous allowed on 6 cylinder and rotory powered cars. Bolt on modifications only. Aftermarket cams, headwork, valves, cam gears and other internal modifications allowed. Approved aftermarket blocks allowed. No air-cooled entries. NOTE: If any 6 cylinder car or rotory powered car is found to have any piece of nitrous equipment installed, such as solenoids, micro throttle switches, etc., car will be assumed to be using nitrous and put into the Turbo 6 class. • CYLINDER HEADS: Must be commercially available, produced in runs of 500 or more. No billet cylinder heads. Any Internal modification permitted. • INDUCTION SYSTEMS: Any commercially available induction may be used, but stock configuration must be retained. Ex: Fuel injected entries must remain fuel injected, with the same type of injection used as delivered stock. Example: if the car is delivered from the factory in a single throttle body configuration it must remain as a single throttle body.
• EXHAUST SYSTEM: NDRA requires the use of a full exhaust system in this class. All exhaust systems must exit behind the rear axle. • DRIVE TRAIN: FWD, AWD and RWD entries. Stock drive train configuration required. Stock rear end must be used. * Rear ends: O.E. bolt in differential casing allowed. No aftermarket substitutes allowed. Examples (8.8”, 9”, or 12 bolt). If vehicle comes stock with I.R.S., vehicle must stay that way for competition. • TRANSMISSION: Factory available OEM manual gearbox / with a H-Pattern shifter or factory automatic transmission allowed. Modifications limited to what fits completely within stock transmission and bell housing. Scatter-shield required if 11.99 or quicker. See section 4.15 for additional details. No aftermarket Transmissions of any kind allowed. Absolutely noTrans-Brakes allowed. • CLUTCH/FLYWHEEL AND FLYWHEEL SHIELD: After market clutch and flywheel shield required if car is running 11.99 or quicker. See section 4;13 and 4;16 in general regulations
• CHASSIS: Full stock chassis (Full stock floor pan) required. A roll bar is mandatory in all cars running 11.49 or quicker and in convertibles running 13.99 or quicker. Any vehicle equipped with a roll bar must be equipped with a padded head protector to be placed behind the driver’s head mounted in such a way so as to help minimize the risk of whiplash. The cage or roll bar must also be fitted with padding in any area where it may come in contact with the driver’s helmet. Padding with ¼ inch compression or padding meeting SFI Spec 45.1 padding or better shall be used. No other forms of padding will be accepted. • SUSPENSION: Must use one shock per wheel, or retain original style suspension. Coil-over shocks allowed. No wheelie bars allowed. Stock shock towers must remain completely intact front and rear. Roll bar may be attached to shock towers. Stock pieces may be strengthened. REAR: Entire rear sub frame structure must remain intact. The entire rear portion of the strut mount must also remain intact. Lower control arm alterations limited to lengthening or strengthening. Back half conversions not permitted.
• WHEELBASE: Stock wheelbase must be retained. • IGNITION SYSTEM: Aftermarket crank triggers, two-step rev limiters, ignition amplifiers, spark computers or dynamically adjustable engine management systems and piggyback engine management systems are allowed. Stand-alone systems allowed. • LIGHTS/STREET EQUIPMENT: Headlights, turn signals, horn, and taillights must be retained in stock condition. One headlight can be removed for air induction. • BRAKES: All cars must have four working hydraulic brakes, and in good working order. • COOLING SYSTEM: No electric water pumps. Electric fans allowed. Must use overflow/catch can 1-pint minimum NOT be mounted in front of tires or with overflow line pointed at tires. • TIRES/WHEELS: DOT approved drag radials only, no bias ply tires allowed. Max tire size limited to 235/60. Cars running 11.99 or quicker must have metal valve stems. Tubes permitted. AWD entries must run DOT Street radial tires. NOTE:
“ABSOLUTELY” NO MINI SPARE TIRES OR NON-SPEED RATED TIRES MAY BE USED. • FUEL: Gasoline only. No fuel cells allowed. DRIVERS LICENSE: State, or Federal, or International driver’s license mandatory. • COMPETITION LICENSE NOTE: A VALID COMPETITION LICENSE MANDATORY FOR CARS RUNNING 9.99 AND QUICKER AT A NHRA TRACK AND 9;50 AND QUICKER AT A IHRA TRACK. (NO EXCEPTIONS!) • DRIVERS SAFETY EQUIPMENT: Any vehicle equipped with a roll cage or roll bar must be equipped with a padded head protector to be placed behind the driver’s head mounted in such a way so as to help minimize the risk of whiplash. The cage or roll bar must also be fitted with padding in any area where it may come in contact with the driver’s helmet. Padding with ¼ inch compression or padding meeting SFI Spec 45.1 padding or better shall be used. No other forms of padding will be accepted. • HELMETS: Drivers of cars 13.99 or quicker must use a helmet that is Snell, 90, 95, 2000 SFI 31.1, 31.2, 41.1 or 41.2 spec. Any helmet that is
modified in any way other than paint jobs shall be deemed unsafe and not suited for competition. Drivers must be wearing their helmet prior to entering the burnout area. The NDRA requires the use of Full Face Helmets and strongly recommends the use of the proper visor as well. • CLOTHING: 10.00-11.99: Drivers must wear jacket meeting SFI 3.2A/1. • SEAT BELTS: All cars THAT REQUIRE a roll bar must use a 5-point SFI 16.1 driver restraint system equipped with a quick release system. Belts must be mounted to the frame or cross member or in a reinforced mounting point so that all connections are in a direct line with the direction of the pull. CARS REQUIRING A SFI 16.1 DRIVERS RESTRAINT System must HAVE THE BELTS updated 2 years FROM THE DATES STAMPED ON THE SFI BELT TAGS. Cars using OEM type seats may route the crotch strap in front of the seat rather than through a hole in the base cushion.
1.8> TURBO 6 • SPONSOR DECALS: All racers must have series and or class sponsor decals as required by
NDRA. Competitors can utilize a competing sponsor product / logo. • CLASS: The class designation (T/6) must be on the right side and the front window in 3-inch tall letters. • NUMBERS: Car numbers must be on the right side window in 6-inch tall numbers, and the front windshield in 3-inch tall numbers. • BODY: Stock import or domestic compact car or truck body must be retained. Lightweight parts limited to hood, fenders and ground effects only. Cutting or drilling of body or chassis is limited to front bumper support to allow room for installation of turbo intercooler, and rear bumper support may be removed. Removal of other components for purpose of lightening vehicle prohibited. Chop tops not allowed. Lexan or Plexiglas windows are prohibited. No tape can be used to join/cover body seams. Body or paint damage incurred at that event can be fixed by any means for remainder of the event. • INTERIOR: Door panels, dash, headliner and carpet must remain in place. Passenger seat and back seat plus all interior trim from driver’s seat back can be removed. Doors must work from inside
and outside of vehicle. Windows and door switches must work as designed by manufacturer. Cars will be re-inspected on the return road any cars found missing required components shall be disqualified. Stock steering column and turn signals most be retained. • ENGINE: Reserved for overhead cam 6 cylinder, or 2 rotor entries equipped with a turbocharger, a nitrous oxide system or for those vehicles with superchargers and motor swaps for a total of up to two power adders. Engine must be the some make as vehicle racing. Bolt on modifications only. Aftermarket cams, headwork, valves, cam gears and other internal modifications allowed. Motor-swaps plus power adders allowed. Air-cooled entries allowed. • CYLINDER HEADS: Must be commercially available, produced in runs of 500 or more. No billet cylinder heads. Any internal modification permitted. • INDUCTION SYSTEMS: Any commercially available induction may be used, but stock configuration must be retained. Ex: Fuel injected entries must remain fuel injected, with the same type of injection used as delivered stock.
Example: if the car is delivered from the factory in a single throttle body configuration it must remain as a single throttle body. • NITROUS: Bottles must be stamped 1800-psi minimum. Bottles must be mounted directly to the body, utilizing all mounting points. Electrical bottle heaters allowed, NOTE: NO EXTERNAL FLAME HEATING OF BOTTLE ALLOWED. Blow down tube is required if bottle is inside passenger compartment. • EXHAUST SYSTEM: NDRA does not require mufflers for racing however, some tracks have a noise ordinance, which requires a muffler for Saturday racing. Catalytic converters may be removed. • DRIVE TRAIN: FWD, AWD, and RWD entries. Stock drive train configuration required. OEM rear end must be used. * Rear ends: O.E. bolt in differential casing allowed. No aftermarket substitutes allowed. Examples (8.8”, 9”, or 12 bolt). If vehicle comes stock with I.R.S., vehicle must stay that way for competition. • TRANSMISSION: Factory available OEM manual gearbox / with an H-Pattern shifter or
factory automatic transmission. Modifications limited to what fits completely within stock transmission and bell housing. Automatic transmissions allowed. Scatter-shield required if 11.99 or quicker. See section 4.15 for additional details. No aftermarket Transmissions of any kind allowed. Absolutely noTrans-Brakes allowed. • CLUTCH/FLYWHEEL AND FLYWHEEL SHIELD: After market clutch and flywheel shield required if car is running 11.99 or quicker. See section 4;13 and 4;16 in general regulations. • CHASSIS: Full stock chassis (Full stock floor pan) required. A roll bar is mandatory in all cars running 11.49 or quicker and in convertibles running 13.99 or quicker. Any vehicle equipped with a roll bar must be equipped with a padded head protector to be placed behind the driver’s head mounted in such a way so as to help minimize the risk of whiplash. The cage or roll bar must also be fitted with padding in any area where it may come in contact with the driver’s helmet. Padding with ¼ inch compression or padding meeting SFI Spec 45.1 padding or better shall be used. No other forms of padding will be accepted.
• SUSPENSION: Must use one shock per wheel, or retain original style suspension. Coil-over shocks allowed. No wheelie bars allowed. Stock shock towers must remain completely intact front and rear. Roll bar may be attached to shock towers. Stock pieces may be strengthened. REAR: Entire rear sub frame structure must remain intact. The entire rear portion of the strut mount must also remain intact. Lower control arm alterations limited to lengthening or strengthening. Back half conversions not permitted. • WHEELBASE: Stock wheelbase must be retained. • IGNITION SYSTEM: Aftermarket crank triggers, two-step rev limiters, ignition amplifiers, spark computers or dynamically adjustable engine management systems and piggyback engine management systems are allowed. Stand-alone systems allowed. • LIGHTS/STREET EQUIPMENT: Headlights, turn signals, horn, and taillights must be retained in stock condition. One headlight can be removed for air induction.
• BRAKES: All cars must have four working hydraulic brakes, and in good working order. • COOLING SYSTEM: No electric water pumps. Electric fans allowed. Must use overflow/catch can 1-pint minimum. Cannot be mounted in front of tires or with overflow line pointed at tires. • TIRES/WHEELS: Slicks OK. Cars running 11.99 or quicker must have metal valve stems. Tubes permitted. AWD entries must run DOT Street radial tires. NOTE: “ABSOLUTELY” NO MINI SPARE TIRES OR NON-SPEED RATED TIRES MAY BE USED. • FUEL: Gasoline only. Fuel cells allowed, fuel cells must be covered or separated from the drivers compartment, but can not be in the engine compartment. • DRIVERS LICENSE: State, or Federal, or International drivers license mandatory. • COMPETITION LICENSE: NOTE: A VALID COMPETITION LICENSE MANDATORY FOR CARS RUNNING 9.99 AND QUICKER AT A NHRA TRACK AND 9;50 AND QUICKER AT A IHRA TRACK. (NO EXCEPTIONS!)
• DRIVERS SAFETY EQUIPMENT: Any vehicle equipped with a roll cage or roll bar must be equipped with a padded head protector to be placed behind the driver’s head mounted in such a way so as to help minimize the risk of whiplash. The cage or roll bar must also be fitted with padding in any area where it may come in contact with the driver’s helmet. Padding with ¼ inch compression or padding meeting SFI Spec 45.1 padding or better shall be used. No other forms of padding will be accepted. • HELMETS: Drivers of cars 13.99 or quicker must use a helmet that is Snell, 90, 95, 2000 SFI 31.1, 31.2, 41.1 or 41.2 spec. Any helmet that is modified in any way other than paint jobs shall be deemed unsafe and not suited for competition. Drivers must be wearing their helmet prior to entering the burnout area. The NDRA requires the use of Full Face Helmets and strongly recommends the use of the proper visor as well. • CLOTHING: 10.00-11.99: Drivers must wear jacket meeting SFI 3.2A/1. Cars running 9.99 and quicker must wear a jacket meeting SFI 3.2A/5, and Gloves meeting 3.3/1 mandatory.
• SEAT BELTS: All cars THAT REQUIRE a roll bar must use a 5-point SFI 16.1 driver restraint system equipped with a quick release system. Belts must be mounted to the frame or cross member or in a reinforced mounting point so that all connections are in a direct line with the direction of the pull. CARS REQUIRING A SFI 16.1 DRIVERS RESTRAINT System must HAVE THE BELTS updated 2 years FROM THE DATES STAMPED ON THE SFI BELT TAGS. Cars using OEM type seats may route the crotch strap in front of the seat rather than through a hole in the base cushion. • PARACHUTES: Required for all cars exceeding 150 mph. Tech inspectors may inspect parachute for damage or wear at our discretion. Parachutes must be solidly mounted to frame and release housing must be no more than 12” from parachute pack and must be mounted in such a way to ensure smooth operation without failure.
ok guys the first class rules are goin to be the class that jason hunt etc ran in last year. the 2nd is the street tire class and 3rd is the 6 cylinder class
so, in turbo 4 i can run full blown slicks— 24.5x8x13
in power street, i can run m&h’s dot legal 205/60/13’s (roughly 23x8x13)
seeing hunt ran in turbo 4, u need easily low 10 high 9 car to play, w/ cut probably being high 10.
what about power street? whats the cutoff for the field usually? those m&h dot tires are basically slicks w/ a line through them and dot certification-- so those have to be the ticket for traction in that class.
i think it has to be an actual radial tire… When i raced at IDRC i was placed in the “street tire class” which was everyone with ET streets and M and H dot cheater street tire slicks. There was an easier “true street tire” class which was for radial tires… i.e. BFG g-force, Nitto NT555r, The new ET street radials.
24.5x8x13 will work in the turbo 4 class but are a bit short compared to what most run.
M&H are bias ply just like ET streets so no you can’t run them. BFG is really the only way to go in power street. usually low 13’s will let you make the event with the winner being from 11.0 to 12.0 most of the time. DOT means nothing it is all about how the tire is constructed and it must be a radial tire not bias ply
cut for turbo 4 is in the 11’s but there is really no point since the first round you will end up racing a mid 9 second car.