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NEDRA Classes, Voltage Divisions and Record Rules

To earn a NEDRA Record vehicles are categorized by Class and Voltage. Classes are determined by the extent of the vehicle's modification from daily drivers such as simple Street Conversions (SC) to extreme racers like in the Extreme Street (XS) class. Classes are available for both cars and motorcycles. Voltage Divisions begin with 24 volts for division J and step upward to division A5 for 600 volts and over. Refer to the the table, Voltage Divisions, shown below. Please note that the old procedure for deriving voltage division by counting lead acid batteries to determine 'Nominal Voltage' is no longer valid. The only valid method for division determination is by direct voltage measurement. The voltage measurements may be made immediately prior to leaving the pits, in the staging lanes, or at the starting line.

Example:
A car determined to conform to the Pro Street Conversion class [PS] with a battery pack measured to be 237.6 volts would be designated as PS/B.

CLASSES
Class
Description
SP
 Street Production
MP
 Modified Production
SC
 Street Conversion
PS
 Pro Street Conversion
MC
 Modified Conversion
XS
 Extreme Street
CV
 Concept Vehicle
DR
 Dragster
HS
 High School
HM
 High School Modified
PMC
 Production Motorcycle
MPC
 Modified Prod. Motorcycle
SMC
 Street Motorcycle
DMC
 Drag Motorcycle

 

 
VOLTAGE DIVISIONS
Division
Nominal*
Measured
A5
 600V
 594.1V and above**
A4
 540V
448.9V - 594V
A3
408V
382.9V - 448.8V
A2
 348V
 330.1V - 382.8V
A
 300V
 264.1V - 330.0V
B
240V
 211.3V - 264.0V
C
192V
 184.9V - 211.2V
D
 168V
 158.5V - 184.8V
E
 144V
 132.1V - 158.4V
F
120V
 105.7V - 132.0V
G
 96V
 79.3V - 105.6V
H
72V
 52.9V - 79.2V
I
 48V
 26.5V - 52.8V
J
24V
 0 - 26.4V and below

* Nominal voltage is for reference only. Nominal Voltage Divisions are obsolete. Voltage Divisions are now only determined by Measured Voltage. Race forms must state Measured Voltage

** Division A5 must have an Insulation Certificate from the NEDRA Tech Inspector for all classes as described in the official NEDRA rulebook

Record Rules

*Note new rule changes in red.

1) Track Requirements

  • All 1/8 mile and 1/4 mile NHRA and IHRA tracks

2) Eligibility

  • Vehicle owner and driver must be NEDRA Members
  • Vehicle must meet applicable NHRA rules and NEDRA Class and Voltage Specifications
  • NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39
    for eighth mile) or 135 MPH or faster
    .
  • Records can be attempted at sanctioned NEDRA events or independently by the vehicle owner at any NHRA or IHRA track.

3) Rules

  • Owner, driver and vehicle must meet all eligibility requirements
  • Records open to all voltage divisions in both 1/8 and 1/4 mile distances
  • Only one record (either 1/8 or 1/4, not both) can be obtained per day or Event*
  • Only one class and voltage division attempt can be made per day or Event*
  • Race day is determined by the offical opening and closing times of the track

4) Record Submission Procedures

  • NEDRA Race Form must be properly filled out by the vehicle owner and signed by the track inspector prior to record attempt
  • Two time slips are required
  • If the ETs from the two time slips are within 1% of each other, the
    quickest ET becomes the record. If the difference is greater than 1%, the
    slower of the two ETs becomes the record.
  • Send Race Form and copy of the two time slips to:

ThunderStruck Motors, LLC
2985 Dutton Ave. Ste 3
Santa Rosa, CA 95407
Tel: (707) 578-7973
Fax: (707) 581-1860
or email to:
recordkeeper@nedra.com

*An Event is considered an NHRA, IHRA "Test and Tune," official competition or NEDRA sanctioned competition that spans a period of a day or weekend. If two seperate events are held on the same day, at the same track, a racer can acheive two records for that day if they are made in each "official" event. A tech form will be required for each record made.

Class Descriptions

NEDRA Classes

Street Production (SP)
Mass produced vehicles that are originally created to be EVs. An example of a production vehicle would be GM's EV-1, Corbin Sparrow or conversions by companies such as US Electricar which would include the Destiny 2000 Fiero or AC Propulsion's Geo Force.

Modified Production (MP)
Vehicles that have been altered from the original production specs. An example would be a Corbin Sparrow that has a Zilla Controller.
Street Conversion Class (SC)
The Street Conversion (SC) class is for basic street legal and licensed conversions that have not been modified for racing.
Section 1: License and Legal Equipment
Section 2: Body
Section 3: Interior
Section 4: Drivetrain
Section 5: Safety Equipment
Pro Street Conversion Class (PS)
The Pro Street Conversion (PS) class is for street legal and licensed conversions that have been modified for racing use while still maintaining their street appearance and drivability.
Section 1: Licence and Legal Equipment
Section 2: Body
Section 3: Interior
Section 4: Drivetrain
Section 5: Safety Equipment
Modified Conversion Class (MC)
The Modified Street Conversion (MC) class is for street bodied and chassied vehicles that are heavily modified for racing.
Section 1: Licence and Legal Equipment
Section 2: Body
Section 3: Interior
Section 4: Drivetrain
Section 5: Safety Equipment
Extreme Street Class (XS)
The Extreme Street (XS) class is for street bodied vehicles that are built as all out race vehicles. These are the custom tube chassis or other highly modified chassis type vehicles.
Section 1: Licence and Legal Equipment
Section 2: Body
Section 3: Interior
Section 4: Drivetrain
Section 5: Safety Equipment
Concept Vehicle (CV)
Prototypes and vehicles that are one of a kind and do not fall easily under the other categories. As soon as there are two or more of the vehicle, then it is no longer a concept vehicle.
Dragsters (DR)
4-wheeled vehicles that are not street driven. This category includes Full-Rail Dragsters, Sand Rails, Formula racers, and Jr Dragsters

High School (HS)

Conversions of street vehicles built and owned by high schools or their sponsors.

High School Modified (HM)
Street vehicles built and owned by high schools or their sponsors that have been heavily modified.

MOTORCYCLE CLASS OVERVIEW
It is the intent of the NEDRA Motorcycle class to encompass all two inline wheeled electric vehicles for the purposes of classification for 1⁄4 mile and 1/8 mile ET records into four classes:

Production Motorcycle (PMC)
It is the intent of this class to allow production motorcycles, purchased from a manufacturer or distributor, to be raced in direct competition with each other.

Modified Production Motorcycle (MPC)
It is the intent of this class to allow only production motorcycles, originally purchased from a manufacturer or distributor, but have been altered or modified from their original design.

Street Motorcycle (SMC)
It is the intent of this class to allow all motorcycles that are Street Legal to compete together for records.

Drag Motorcycle (DMC)
It is the intent of this class not to limit what the geometry of the vehicle looks like or the origin of the frame or components or whether the vehicle is allowed to drive on the street.

STREET PRODUCTION CLASS OVERVIEW
Mass produced vehicles that are originally created to be EVs. An example of a production vehicle would be GM's EV-1, Corbin Sparrow or conversions by companies such as US Electricar which would include the Destiny 2000 Fiero or AC Propulsion's Geo Force. (more details and rules on this class available soon)

MODIFIED PRODUCTION CLASS OVERVIEW
Vehicles that have been altered from the original production specs. An example would be a Corbin Sparrow that has a Zilla Controller. (more details and rules on this class available soon)

STREET CONVERSION CLASS OVERVIEW
The Street Conversion (SC) class is for basic street legal and licensed conversions that have not been modified for racing. "Conversions" are vehicles that have been mass-produced but were NOT originally manufactured as electric vehicles. This is the class for the "daily driver" type vehicle. DOT approved tires required.

STREET CONVERSION CLASS RULES

Section 1: License and Legal Equipment
Vehicle must be registered and insured for legal street use with current tags. Functional horn, lights, turn signals, wipers, parking brake, and bumpers as required by the state the vehicle is licensed in. Heater not required.

Section 2: Body
Vehicle must have a production body and chassis and must have been originally titled as a 4 wheeled car, truck, or van. More than four wheels allowed if a factory or dealer option. Replacement body panels such as fiberglass, carbon fiber, fiber plastic, or other light weight composites not allowed. This includes doors, hoods, fenders, quarter panels and ground effect kits. Gutting of door assemblies, removal of bracings, removal of exterior panels, and the addition of tubbing, bulged fenders, and flared fenders (unless a factory or dealer option) not allowed. Modification of spare tire well and former fuel tank area allowed for battery pack placement purposes. Air dams and spoilers not allowed unless factory or dealer installed. Stock or OEM type windshield, back glass and door glass required. Door glass must roll up and down, or be able to tilt or slide open as factory designed.

Section 3: Interior
Stock front seat or fully upholstered replacement required. Aluminum or plastic racing seats not allowed. Door panels required on all doors. Stock or better floor covering required. Stock or better headliner required. Dash panel required, but modified and custom designs allowed.

Section 4: Drivetrain
Single and multiple motors allowed. Motors be in the original engine location. Aftermarket clutches allowed. Designs using direct drive or a transmission allowed. Operational reverse required. Heavy duty and or modified rear axles, heavy duty and or modified front drive transaxles, and heavy duty and or modified rear transaxles assemblies allowed so long as the stock housing is retained. Heavy duty and or modified transmissions allowed. Welded spider gears and spools not allowed. Traction bars not allowed. Aftermarket wheels allowed if legal for street use. Heavy duty springs and shocks allowed. Aftermarket brakes allowed. Line lock type brake controllers not allowed. Electronic launch devices and other electronic race oriented performance enhancement devices not allowed. DOT approved street legal tires required. Wheelie bars not allowed.

Section 5: Safety Equipment
A switch located at the rear of the vehicle designed to shut off all power as per NHRA specifications required. Front seat belt required. Roll cage allowed but if installed must meet with NHRA specifications, and if equipped with a side bar it may be of the swing out type. Roll cage per NHRA specifications mandatory for all cars and trucks running 10.99 or quicker or over 135 mph. NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster in the US and Canada. All other NHRA safety measures required and all other NEDRA safety measures required. If you do not know the NHRA safety regulations you can obtain a current copy of the NHRA rulebook from the NHRA here: http://store.nhra.com/shop-by-department/membership/

Back to the Index


PRO STREET CONVERSION CLASS OVERVIEW

The Pro Street Conversion (PS) class is for street legal and licensed conversions that have been modified for racing use while still maintaining their street appearance and drivability. "Conversions" are vehicles that have been mass-produced but were NOT originally manufactured as electric vehicles. This is the class for the "street rod" type vehicle. Racing slicks allowed.

PRO STREET CONVERSION CLASS RULES

Section 1: License and Legal Equipment
Vehicle must be registered and insured for legal street use with current tags. Functional horn, lights, turn signals, wipers, parking brake, and bumpers as required by the state the vehicle is licensed in. Heater not required.

Section 2: Body
Vehicle must have a production body and chassis and must have been originally titled as a 4 wheeled car, truck, or van. More than four wheels allowed if a factory or dealer option. Bolt-on replacement body panels made of fiberglass, carbon fiber, fiber plastic, or other light weight composites allowed. This includes doors, hoods, fenders, quarter panels and ground effect kits. Shaved door handles and electric door actuator and lock upgrades allowed. Power window upgrades allowed. Gutting of door assemblies or removal of bracings for weight reduction purposes not allowed. Removal of exterior panels, and interior wheel well tubbing not allowed. Modification of spare tire well and former fuel tank area allowed for battery pack placement purposes. Air dams and spoilers allowed. Stock or OEM type windshield required. All other glass can be replaced with clear polycarbonate.

Section 3: Interior
Front seat required. Racing seats allowed. Door panels required on all doors. Stock or better floor covering required. Stock or better headliner must required. Dash panel required, but modified and custom designs allowed.

Section 4: Drivetrain
Single and multiple motors allowed. Motors must be in the original engine location. Aftermarket clutches allowed. Designs using direct drive or a transmission allowed. Heavy duty and or modified rear axles, heavy duty and or modified front drive transaxles, and heavy duty and or modified rear transaxles assemblies allowed. Locking differentials and positraction allowed. Welded spider gears and spools not allowed. Traction bars allowed. Sub frame modifications such as four link systems allowed. Operational reverse required. Aftermarket wheels allowed if legal for street use. Aftermarket suspension allowed. Aftermarket brakes allowed. Line lock type brake controllers allowed. Race slicks allowed. Wheelie bars allowed. Stock wheelbase required.

Section 5: Safety Equipment
A switch located at the rear of the vehicle designed to shut off all power as per NHRA specifications required. Front seat belt required. Roll cage allowed but if installed must meet with NHRA specifications. Roll cage per NHRA specifications mandatory for all cars and trucks running 10.99 or quicker or over 135 mph. NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster. All other NHRA safety measures required and all other NEDRA safety measures required. If you do not know the NHRA safety regulations you can obtain a current copy of the NHRA rulebook from the NHRA here: http://store.nhra.com/shop-by-department/membership/

Back to the Index


MODIFIED CONVERSION CLASS OVERVIEW

The Modified Street Conversion (MC) class is for street bodied and chassied vehicles that are heavily modified for racing. Street legality for vehicles in this class not required. "Conversions" are vehicles that have been mass-produced but were NOT originally manufactured as electric vehicles. This is the class for the "race rod" type vehicle. Racing slicks allowed.

MODIFED CONVERSION CLASS RULES

Section 1: License and Legal Equipment
Operational brake light required.

Section 2: Body
Vehicle must have a production body and chassis and must have been originally titled as a 4 wheeled car, truck, or van. More than four wheels allowed if a factory or dealer option. Bolt-on replacement body panels made of fiberglass, carbon fiber, fiber plastic, or other light weight composites allowed. This includes doors, hoods, fenders, quarter panels and ground effect kits. Shaved door handles and electric door actuator and lock upgrades allowed. Power window upgrades allowed. Gutting of door assemblies or removal of bracings for weight reduction purposes allowed but doors must remain functional. Interior wheel well tubbing allowed. Stock or OEM type windshield required. All other glass can be replaced with clear polycarbonate.

Section 3: Interior
Front seat required. Racing seats allowed. Dash panel required, but modified and custom designs allowed.

Section 4: Drivetrain
Single and multiple motors allowed. Motors do not need to be in the original engine location. Aftermarket clutches allowed. Designs using direct drive or a transmission allowed. Aftermarket differentials, axles and transaxles allowed. Locking differentials and positraction allowed. Spools allowed. Traction bars allowed. Sub frame modifications such as four link systems allowed. Operational reverse required. Aftermarket wheels allowed. Aftermarket suspension allowed. Aftermarket brakes allowed. Line lock type brake controllers allowed. Race slicks allowed. Wheelie bars allowed.

Section 5: Safety Equipment
A switch located at the rear of the vehicle designed to shut off all power as per NHRA specifications required. Front seat belt required. Roll cage allowed but if installed must meet with NHRA specifications. Roll cage per NHRA specifications mandatory for all cars and trucks running 10.99 or quicker or over 135 mph. NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster. All other NHRA safety measures required and all other NEDRA safety measures required. If you do not know the NHRA safety regulations you can obtain a current copy of the NHRA rulebook from the NHRA here: http://store.nhra.com/shop-by-department/membership/

Back to the Index


EXTREME STREET CLASS OVERVIEW

The Extreme Street (XS) class is for street bodied vehicles that are built as all out race vehicles. These are the custom tube chassis or other highly modified chassis type vehicles. This is the class for the "funny car" type vehicle. This class does not require vehicles to be licensed for street use and racing slicks are allowed.

EXTREME STREET CLASS RULES

Section 1: License and Legal Equipment
Operational brake light required.

Section 2: Body
Street production style body required. 4 or more wheels required. Carbon fiber, fiberglass, and fiberplastic bodies allowed. Working doors not required.

Section 3: Interior
Must have front seat. Racing seats allowed. Dash panel required. Modified and custom dash panel designs allowed.

Section 4: Drivetrain
Custom frames allowed as long as they are built to NHRA specifications. Any drivetrain configuration allowed.

Section 5: Safety Equipment
A switch located at the rear of the vehicle designed to shut off all power as per NHRA specifications required. NHRA approved 5 point safety harness required. Roll cage allowed but if installed must meet with NHRA specifications. Roll cage per NHRA specifications mandatory for all cars and trucks running 10.99 or quicker or over 135 mph. NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster. All other NHRA safety measures required and all other NEDRA safety measures required.

CONCEPT VEHICLE CLASS OVERVIEW
Prototypes and vehicles that are one of a kind or do not fall easily under the other categories. As soon as there are two or more of the vehicle, then it is no longer a concept vehicle. Roll cage per NHRA specifications mandatory for all cars and trucks running 10.99 or quicker or over 135 mph. NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster. (more details and rules on this class available soon)

DRAGSTER CLASS OVERVIEW
4-wheeled vehicles that are not street driven. This category includes Full-Rail Dragsters, Sand Rails, Formula racers, and Jr Dragsters NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster. (more details and rules on this class available soon)

HIGH SCHOOL CLASS OVERVIEW
Conversions of street vehicles built and owned by high schools or their sponsors. Roll cage per NHRA specifications mandatory for all cars and trucks running 10.99 or quicker or over 135 mph. NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster. (more details and rules on this class available soon)

HIGH SCHOOL MODIFIED CLASS OVERVIEW
Conversions of street vehicles built and owned by high schools or their sponsors that have been heavily modified. Street legality for vehicles in this class not required. Roll cage per NHRA specifications mandatory for all cars and trucks running 10.99 or quicker or over 135 mph. NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster. (more details and rules on this class available soon)

MOTORCYCLE CLASS OVERVIEW
It is the intent of the NEDRA Motorcycle class to encompass all two inline wheeled electric vehicles for the purposes of classification for 1⁄4 mile and 1/8 mile ET records. The voltage divisions and subsequent class modifier will be the same as defined for 4 wheeled vehicles. All motorcycles must conform to any and all safety standards required by a public track (or private track that is specifically sanctioned by NEDRA) at which they may race. NHRA Competition License mandatory for cars running 9.99 or quicker (*6.39 for eighth mile) or 135 MPH or faster.

This includes sanctioning body rules such as NHRA, IHRA, AHDRA, or other recognized international drag racing association that might sanction racing on a particular track. In addition all motorcycles that compete for a NEDRA class record, except those competing solely in PMT, must have a safety lanyard that is connected to the driver while racing and disables power from the traction batteries in the event the rider is separated from the vehicle. It is urged that drivers of PMT vehicles also add this safety feature to their vehicles. This sole modification will not jeopardize a PMT vehicle’s status in this class.

Definitions:

  1. Production means the motorcycle can be purchased from a manufacturer or distributor that has produced more than 10 of the same of
    such vehicles.
  2. Street Legal means the motorcycle is currently registered and licensed to drive on public streets and roadways in the state that
    the owner resides.

Production Motorcycle (PMC)
It is the intent of this class to allow production motorcycles, purchased from a manufacturer or distributor, to be raced in direct competition with each other. Production motorcycles do not have to be street legal so as to allow off road vehicles. No modifications to the vehicle are allowed which precludes upgrade of the battery to a chemistry, or tires of a different size, other than what was originally produced with the vehicle.

Modified Production Motorcycle (MPC)
It is the intent of this class to allow only production motorcycles, originally purchased from a manufacturer or distributor, but have been altered or modified from their original design. Battery upgrades to a different chemistry, motor and controller upgrades, different tires and/or wheels, and add on fairings not originally offered as options are allowed. Modifications to the original frame geometry are not allowed in this class. Modified Production Motorcycles do not have to be street legal. Wheelie bars are allowed if fitted.

Street Motorcycle (SMC)
It is the intent of this class to allow all motorcycles that are Street Legal to compete together for records. All requirements of the State the vehicle is licensed in, such as head lights, turn signals and required brakes must be in place while racing. All frames originating from ICE donor vehicles or scratch built custom frames are allowed. All battery chemistries, motor/controller combinations, and wheel/tire sizes are allowed as long as they are DOT approved for street use. Wheelie bars are allowed for use in racing the Street Class.

Drag Motorcycle (DMC)
It is the intent of this class not to limit what the geometry of the vehicle looks like or the origin of the frame or components or whether the vehicle is allowed to drive on the street. Any vehicle that cannot fit into one of the previously defined classes will be designated a DMC by race officials.

Back to the Index

Voltage Divisions

Voltage Divisions from 24 to over 400 volts are designed to give racers of all voltage ranges a chance to earn a NEDRA Record.

Measured voltages allow racers with battery chemistries other then 12 volt lead acid the ability to obtain their correct votlage. The measured voltage is not the "float voltage" but the voltage the vehicle is measured when the float voltage has dissapated. Basically, this would be at staging or at the starting line, where the float charge has had a chance to dissapate.

To determine your voltage division, simply measure your pack voltage with a digital voltmeter to the nearest tenth of a volt. The voltage must be measured before the run.

Voltage classes will be listed using measured voltages. Nominal voltage is basically the historical lead acid design voltage for that class and just for reference purposes.

The voltage class conversion will be by a 13.2/12 factor, since very few lead acid batteries ever go above 13.2 volts once the surface charge has dissipated.

CLASS AND VOLTAGE CHANGE HISTORY
Effective June 1, 2006 NEDRA segmented the "A" Voltage Division into 3 seperate divisions to promote more competition and to expand with new controller and motor technology. The old "A" Voltage Division was 241 volts and higher. For historical purposes, records made in the "A" Voltage Division prior to June 1, 2006 are exempt from the revision. Those record holders will keep their "A" division records as they are pending a review by the NEDRA Board since those records are historically significant.

NEDRA Street Classes went into effect June 15, 2006.

Effective April 15, 2013 NEDRA added A4 and A5 voltage levels and added the phrasing, "Please note that the old procedure for deriving voltage division by counting lead acid batteries to determine 'Nominal Voltage' is no longer valid. The only valid method for division determination is by direct voltage measurement. The voltage measurements may be made immediately prior to leaving the pits, in the staging lanes, or at the starting line."

 
VOLTAGE DIVISIONS
Division
Nominal*
Measured
A5
 600V
 594.1V and above**
A4
 540V
448.9V - 594V
A3
408V
382.9V - 448.8V
A2
 348V
 330.1V - 382.8V
A
 300V
 264.1V - 330.0V
B
240V
 211.3V - 264.0V
C
192V
 184.9V - 211.2V
D
 168V
 158.5V - 184.8V
E
 144V
 132.1V - 158.4V
F
120V
 105.7V - 132.0V
G
 96V
 79.3V - 105.6V
H
72V
 52.9V - 79.2V
I
 48V
 26.5V - 52.8V
J
24V
 0 - 26.4V and below

* Nominal voltage is for reference only. Nominal Voltage Divisions are obsolete. Voltage Divisions are now only determined by Measured Voltage. Race forms must state Measured Voltage

** Division A5 must have an Insulation Certificate from the NEDRA Tech Inspector for all classes as described in the official NEDRA rulebook

   
 
   
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