NASA ST/TT Car Classification Form

What Class do you Want to Compete In? *

ST1/TT1 - 6.00:1 ST2/TT2 - 8.00:1 ST3/TT3 - 10.00:1 ST4/TT4 - 12.00:1 ST5/TT5 - 14.00:1 ST6/TT6 - 18.00:1

Minimum Competition Weight with Driver (lbs) *

Weight Factor (ST1-4/TT1-4)

Calculated

Average Chassis Dyno Horsepower (Avg HP) *

Use only whole number

Corrected HP

Calculated

Raw Weight/Horsepower Ratio

Calculated

Adjusted Weight/Horsepower Ratio

Calculated

Selected Class(Top) Weight/Horsepower Ratio

AW/HR

ST1-4/TT1-4 Compliant(with the selection at the top)?

Tire Size (ST1-3/TT1-3) *

NASA Section Width 266mm or smaller (DOT-approved) +0.6 NASA Section Width 267mm to 282mm (DOT- approved) +0.3 Size 9.5” (241mm) or smaller (non-DOT approved) +0.6 Size 10.5” (267mm) to 9.6” (244mm) (non-DOT approved) +0.3 Not Applicable

Tire Size (ST4/TT4) *

NASA Section Width 266mm or smaller (DOT-approved) +0.6 NASA Section Width 267mm to 282mm (DOT- approved) +0.3 Not Applicable

Tire Type (ST1-3/TT1-3) *

Non-DOT approved tires (ST1/TT1, ST2/TT2, ST3/TT3 Only) -0.5 Tires with a UTQG Treadwear rating 100 or greater +0.5 Not Applicable

Tire Type (ST4/TT4) *

Tires with a UTQG Treadwear rating 100 or greater +0.5 DOT-approved R-comp Autocross tires (examples: A6, A7, DOT Wet, R1S, RS AC, Z214-C90/91) -1.0 Not Applicable

Chassis (ST1/TT1) *

Sports racers, “Prototypes”, monocoque race cars (ST1/TT1) -2.5 Other Non-Production Vehicle (ST1/TT1, ST2/TT2, ST3/TT3 only) -0.4 Not Applicable

Chassis (ST2/TT2) *

Sports racers, “Prototypes”, monocoque race cars (ST2/TT2) -3.4 Other Non-Production Vehicle (ST1/TT1, ST2/TT2, ST3/TT3 only) -0.4 Not Applicable

Chassis (ST3/TT3) *

Non-Production Vehicle (ST1/TT1, ST2/TT2, ST3/TT3 only) -0.4 Not Applicable

Production Vehicle Body Modifications (ST1-2/TT1-2) *

Modification of the OEM roof line/shape and/or windshield/frame removal -0.3 Modification of the floor pan for exhaust clearance only and/or the rocker panel for side exit exhaust only -0.2 Not Applicable

Production Vehicle Body Modifications (ST3-4/TT3-4) *

Modification of the OEM roof line/shape and/or windshield/frame removal -0.3 Modification of the floor pan for exhaust clearance only and/or the rocker panel for side exit exhaust only -0.2 BTM Aero (see 6.3) +0.4 Not Applicable

Transmission (ST1-2/TT1-2) *

ST1 & ST2: Dog-ring/straight-cut gears (non-synchromesh),and/or sequential/paddle shift/semi-automatic -0.2 Not Applicable

Transmission (ST3/TT3) *

OEM street-legal model available paddle shift/DCT/SMG or sequential motorcycle gearbox -0.3 Dog-ring/straight-cut gears (non-synchromesh) -0.6 All other sequential/semi-automatic -1.0 Not Applicable

Transmission (ST4/TT4) *

OEM street-legal model available paddle shift/DCT/SMG or sequential motorcycle gearbox -0.3 Dog-ring/straight-cut gears (non-synchromesh) and/orsequential/semi-automatic -1.0 Not Applicable

Drivetrain (ST1-3/TT1-3) *

AWD -0.3 FWD +1.0 RWD

Drivetrain (ST4/TT4) *

AWD -0.5 FWD +0.6 RWD

Additional Mod Factor for Specific Models/Items (ST1-4/TT1-4)

Check (ST1-4/TT1-4) rules

Mod Factor Explanation (ST1-4/TT1-4)

Copy from the rules

Adjusted Weight/Horsepower Ratio

Calculated

Minimum Competition Weight with Driver (lbs) *

Weight Factor (ST5-6/TT5-6)

Calculated

Average Chassis Dyno Horsepower (Avg HP) *

Use only whole number

Corrected HP

Calculated

Raw Weight/Horsepower Ratio

Calculated

Adjusted Weight/Horsepower Ratio

Calculated

Selected Class(Top) Weight/Horsepower Ratio

AW/HR

ST5-6/TT5-6 Compliant(with the selection at the top)?

Tires (ST5-6/TT5-6) *

Tires with a UTQG Treadwear rating 100 or greater +0.5 Not Applicable

Brakes (ST5-6/TT5-6) *

Non-OEM, modified or relocated brake calipers/bracketsor rotor diameter -0.2 Not Applicable

Suspension (ST5-6/TT5-6) *

Suspension design utilizing upper “A-arm” or “wishbone” type control arms (front or rear) -0.7 Replace, modify, or remove control arms, camber arms/links, toe arms/links -0.5 Add, replace, or modify a Watts link, Panhard Rod, or Torque Arm -0.5 Non-OEM metallic and/or spherical design replacement suspension bushing modifications on control/camber/toe arms/links, panhard rods, watts links, and torque arms (includes replaced, modified, adjustable, or altered control arm ball joints) -0.2 Non-OEM shocks/struts with an external reservoir (or piggyback) OR with shaft diameter 40mm or greater -0.7 Increase in track width greater than four (4) inches -0.7 Not Applicable

Chassis (ST5-6/TT5-6) *

One or more cage bars that penetrate the front bulkhead/firewall -0.3 Not Applicable

Body (ST5/TT5) *

Single, Flat, Horizontal Front Splitter (no greater than 4”) -0.5 BTM Aero (see 6.1.4) +0.4 Modification of the OEM roof line/shape and/or windshield/frame removal (convertibles only) -0.4 Modification of the floor pan for exhaust clearance only and/or the rocker panel for side exit exhaust only -0.2 Not Applicable

Body (ST6/TT6) *

BTM Aero (see 6.1.4) +0.4 Modification of the OEM roof line/shape and/or windshield/frame removal (convertibles only) -0.4 Modification of the floor pan for exhaust clearance only and/or the rocker panel for side exit exhaust only -0.2 Single rear wing or spoiler -1.0 Not Applicable

Transmission (ST5-6/TT5-6) *

OEM street-legal model available paddle shift/DCT/SMG or sequential motorcycle gearbox -0.3 Not Applicable

Drivetrain (ST5-6/TT5-6) *

AWD -0.5 FWD +0.6 Rear-Mid or Rear engine layout (not Front-Mid) -0.4 RWD

Mod Factor for Specific Models/Items (ST5-6/TT5-6)

Check (ST5-6/TT5-6) rules

Mod Factor Explanation (ST5-6/TT5-6)

Copy from the rules

Adjusted Weight/Horsepower Ratio

Calculated

What Series are You Competing In? (may select both) *

Time Trial Super Touring Endurance Racing

Driver/Team Name *

First Name Last Name

NASA Region *

Email *

Confirmation Email

Year *

Make *

Model *

Car Number *

Car Color *

Multiple ECU Maps? *

No Yes

Describe Switching Method *

Please Upload Dyno Certification Form, Dyno Printout, and 50 RPM vs HP Data Output Table Printout *

Browse Files

This form accepts multiple files. Scanned or a clear picture of each page is OK(pdf, jpg, and jpeg only)

I Certify that I Have Uploaded the Following Mandatory Documents *

Dyno Certification Form Dyno Pull Printout - 3 Pulls 50 RPM vs HP Data Output Table Printout for Average HP Calculations(When Applicable)

A summary of the form that you can save will be emailed to you upon submission of the worksheet to NASA. Preview/Submit option is only available if the Adjusted Weight/Horsepower ratio is compliant with the selection on the top.

Super Touring and Time Trial

Calculation of Adjusted Weight/Power Ratio (worksheet):

Calculation of Adjusted Weight/Power Ratio (worksheet):

Driver/Team and Car Information