Northeast GT Cup | Class Calculator 2.0Welcome to the NEGT Cup calculator. If you are interested in the power-to-weight based GT Cup (GTC), please fill this out. If you plan to run GT Bracket (GTB), there is no need to click send, but feel free to explore. Use this form to see your adjusted GTC power-to-weight ratio, which class your car falls into currently and your minimum competition weight for that class and to enter your class declaration. To try multiple configurations before entering one, we suggest using our spreadsheet calculator tool linked on the "Rules and Forms" page. Intake-restricted cars will be reviewed for GTC on a case-by-case basis and are always welcome as-is in GT Bracket (GTB). Cars detuned electronically are suggested to run in the GTB category as well, as they would be classed in GTC using their full OEM rated power, torque and all relevant modifiers. Please reach out to us with any issues or questions. -NEGT StaffPlease enable JavaScript in your browser to complete this form.Please enable JavaScript in your browser to complete this form. Driver / Owner Team Name *Last Name *First Name *Email * General Car Info Earliest Chassis Model Year *SELECTPre 198019801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020Post 2020[-0.25%] per year before 2000, [+0.25%] per year after 2000 Chassis Make *Chassis Model *Factory Rated Horsepower *Top rated variant of the long block, regardless of year of manufacture or model in which it was deliveredFactory Rated Torque *Top rated variant of the long block, regardless of year of manufacture or model in which it was deliveredWeight (lbs) *As raced, with driver, any ballast and post race fuel. An approx number is okay, we will have scales available at the event to get you a more exact number if needed. Hidden Car Number *Number of Restrictors / Openings (copy) *Type of Inlet Restrictor *NoneFlat PlateSIR - Single Inlet RestrictorAre you currently running any air inlet restrictors or restrictor plates? (copy) *YesNoSize of Restrictor Opening (mm) (copy) *Note that the calculator does not currently take your restrictor size into account. Right now, this is just for data gathering purposes. Engine Model / Designation / Size * Engine Make(If different than car)Dry Sump Oiling System?No = [+0%]Yes = [+5%]Changes to Head, Cam, Engine Size or Compression Ratio?YesNoCompression Modified?Yes+4% per point increaseFactory CompressionCurrent CompressionDisplacement Modified?Yes+1% per % displacement increaseFactory Displacement *Current Displacement *Cylinder HeadOEM to engine (including port match) = [+0%]OEM to engine (including port match) = [+0%]OEM swap (same type/config) or ported cylinder head = [+10%]OEM swap (change type/config) or aftermarket cylinder head = [+25%]CamshaftOEM to engine = [+0%]OEM to engine = [+0%]Change rocker / follower ratio = [+5%]OEM sourced cam swap = [+15%]Modify cam or aftermarket cam = [+25%]Throttle BodyStock = [+0%]Stock = [+0%]Updated replacement, modified or aftermarket = [+2.5%]Intake ManifoldStock = [+0%]Stock = [+0%]Updated replacement or modified = [+2.5%]Aftermarket = [+5%]Exhaust Manifold / HeaderStock = [+0%]Stock = [+0%]Modify OEM, replace w/ OEM swap or aftermarket of same type = [+2.5%]Manifold replaced with tubular header = [+5%] Chassis & Drivetrain Engine LocationFront = [+0%]Front = [+0%]Mid (rear-mid only) = [+3%]Rear = [+2%]Transmission *SELECTAuto w/ 5 or less speeds = [-5%]H-pattern manual, 6spd auto or SMG (single clutch auto/manual) = [+0%]Sequential, 7+ spd auto, dual clutch (PDK, DCT, etc.) = [+7.5%]Differential *SELECTOpen = [-2.5%]LSD (any type) = [+0%]Driven Wheels *SELECTFWD = [-3%]RWD = [+0%]AWD = [+0%]Front Suspension Design *SELECTStrut = [+0%]Double A-arm = [+1.5%]Other = [+1.5%]Rear Suspension Design *SELECTSolid axle = [-1.5%]Beam, cambered solid axle = [-0.5%]Strut = [+0%]Trailing arm, semi-trailing arm = [+0.75%]Double A-arm, multi-link = [+1.5%] Tires Not every tire is called out by name. If you don't see your tire, choose the category where you see similar tires and make sure to inform us what tire you are running in the comments section below. Average advertised tire width: +/-1% per 10mm more / less than 245mm. (-2.5% modifier limit)Tire Category *SELECTHard: 200tw Endurance (RS4, ECF, etc.), NT01, RA1, 888R, 200+ tw = [-8%]Medium: 200tw Sport (V730, 660, ZIII, etc.), most 100tw, Toyo RR, MPSC2 = [+0%]Soft: 200tw Super (CRS, RE, AO, etc.), Toyo R, SC3R, Trofeo R = [+8%]Super Soft: R Comp DOT (R7, RCES, GYRS, etc.) = [+18%]Front Tire Labeled Width *SELECT195205215225235245255265275285295305315325335345355Rear Tire Labeled Width *SELECT195205215225235245255265275285295305315325335345355 Brakes ABS *SELECTNon-ABS / ABS disabled / removed = [-2%]Stock ABS = [+0%]MK60, Ford Racing or OEM-based swap = [+2%]Race / Tuned / Adjustable / Programmable = [+4%]Brake Caliper *SELECT1 = [-1%]2 = [+0%]4 or more = [+1%]Largest individual caliper piston countBrake Rotor DiameterStock = [+0%]Stock = [+0%]Larger than stock = [+1%] Suspension Shocks *SELECTNon-adjustable = [-1%]Single adjustment = [+0%]Double adjustment = [+1%]Double adjustment w/ external reservoir = [+2%]Three or more adjustments = [+3%]Select the highest level on car. Suspension ComponentsMore than one non-OEM link/arm per any corner (do not count camber plates) = [+3%]Relocated mounting point(s), non-OEM knuckle / upright geometry = [+3%]Spherical / solid bushings not in a free or paid for part = [+1%]Select all that apply. Free items that do not apply: OEM-style sway bars, sway bar drop links, toe links, other toe adjustment-only items, reinforcements and bump steer correction that serve no other purpose. Purpose built or non-production GT style racecars shall take both of these 3% adders. Aero Aero Level *SELECTOEM = [-2%]OEM Plus: small changes or additions such as: hood vents, fender vents, air dam, aftermarket bumper, canards = [+0%]Club: wing (element up to 10" chord & body width), splitter (up to 4"), diffuser (within 2" of bodywork & up to 6" tall) = [+5%]Extreme: large or multi-element wing, large splitter (>4"), large diffuser (>2" past bodywork or >6" tall), active aero = [+10%]Select highest level that applies.Supporting AeroAny of the following: splitter fences, side skirts, flat bottom, ducted hood vent, tilted radiator, large wing end plates or other added aero panels (over 72 in²) = [+2%]Select if equipped.BodyChange roofline / A-pillar / C-pillar, etc. = [+2%]Remove roofline / A-pillar, etc. = [+3%]Widebody / change more than 3 body panels. Also apply to purpose built racecars. = [+2%]Select all that apply.X Factor *SELECT+0%+1%+2%+3%+4%+5%+6%+7%+8%+9%+10%+11%+12%+13%+14%+15%+16%+17%+18%+19%+20%+21%+22%+23%+24%+25%X Factor, for mods outside the ruleset.displacement penalty (%)PM18Adj Power 18valFinalFactoryPowerPM 14Adj Power 14compressionPricePM 11Adj Power 11valTotalPenaltyPrice$0.00PM 9Adj Power 9 Conclusion Northeast GT features four official GT Cup classes: GT9, GT11, GT14, and GT18. The # in each class name represents GTC Class Cutoff Ratio for that class. For example, the cutoff or most powerful ratio for GT14 is 14:1. The lower the number, the higher the overall performance level of the car.Your adjusted GT Cup Ratio:Your GTC class is GT18 with this minimum competition weight:Your GTC class is GT14 with this minimum competition weight:Your GTC class is GT11 with this minimum competition weight:Your GTC class is GT9 with this minimum competition weight:Your GTC class would be GT9 with this minimum weight,but your adjusted GTC ratio is currently too low. Your car is too light, too powerful or has too many trick parts. Selecting a slower tire category or adding to your car's weight are the quickest adjustments to try to fit the class. You are also welcome to join us in our GT Bracket category.I'm interested in: *GT18GT14GT11GT9Comments: *Please provide any feedback as well as include any relevant info such as current series you run in, what class your car is in, peak dyno numbers if you have them and anything unique about your car, including if running an inlet restrictor and related details. Did you have trouble or were you unsure about anything? Thank you! Your Competition Weight For Each Class Minimum weight of car, including driver, as raced, post race, per class based on the information entered above. This will help you see how your car may fit into the next class up.GT18GT14GT11 GT9Submit form to Northeast GT
