BoP Lab / Michelin Raceway Road Atlanta
FC vs F6 vs SMX vs STL pace at Michelin Raceway Road Atlanta
Quickest here: FC 1:23.672 Brandon Dixon, Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta race · F6 1:30.014 Clint McMahan, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta qualifying · SMX 1:24.667 Tyler Gonzales, Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta race · STL 1:35.212 Danny Steyn, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta race
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| Qual best | Race best | Trap | Qual best | Race best | Trap | vs FC | % of FC | Qual best | Race best | Trap | vs FC | % of FC | Qual best | Race best | Trap | vs FC | % of FC | |||
| Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta ST26MAR062026-03-06 | 1:23.854Brandon Dixon · fastest of 3 · top 3 within 8.1s-5.116s (-5.75%) | 1:23.672Brandon Dixon · fastest of 3 · top 3 within 9.3s-6.776s (-7.49%) | 138.7Brandon Dixon+12.1 mph (+9.6%) | 1:30.039Calvin Stewart · fastest of 4 · top 4 within 13.3s+0.025s (+0.03%) | 1:33.719H Cory Mcleod · fastest of 3 · top 3 within 14.2s+3.452s (+3.82%) | 137.8Calvin Stewart+5.7 mph (+4.3%) | +10.047squal +6.185s | 112.0%qual 107.4% | 1:38.517Jarrett Jones · fastest of 20 · top 5 within 0.7s-0.145s (-0.15%) | 1:24.667Tyler Gonzales · fastest of 21 · top 5 within 15.4s-14.098s (-14.27%) | 120.7Elivan Goulart+3.7 mph (+3.2%) | +0.995squal +14.663s | 101.2%qual 117.5% | 1:37.000Danny Steyn · fastest of 15 · top 5 within 1.6s+0.012s (+0.01%) | 1:36.825Danny Steyn · fastest of 14 · top 5 within 3.2s-0.382s (-0.39%) | 126.5Derek Ketchie+6.5 mph (+5.4%) | +13.153squal +13.146s | 115.7%qual 115.7% | ||
9 rule changes (FC: 2, SMX: 4, STL: 3)3 weight · 6 wording · FC USF2000 Tube Frame may use Hewland LD200 4-speed H-pattern as alternative to Hewland JL-200 5-speed sequential. · FC F2000 Metrik ZF2 minimum weight reduced to 1220 lbs. · STL minimum weights increase across all classes, 1300 cc gains 195 lbs to 1950, up to 1850 cc at 2500. · STL/STU Lotus weight reduced: Evora GT4 to 2700 lbs, Elise Cup R to 2250 lbs, Elise/Exige SC to 2450-2550 lbs. · SMX drivers must submit data acquisition files on time or face suspension and $250 fine. · SMX penalty language clarified: level 1 and 3 infractions may carry $1,000 fine; level 2 and 4 may carry $500 fine. · SMX Toyo RR P235/40/ZR17 tire rules clarified: one set per weekend, marking after first session, damage replacement procedures revised. · SMX data submission deadline extended from 30 to 60 minutes after each timed session. · STL Mazda MX5 Challenge minimum weight now references GCR 9.1.7.1 instead of 2500 lbs; spec components removed, only alternative tires allowed.show
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| Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta ST25MAR072025-03-07 | 1:28.970Eric Presbrey · fastest of 2+3.675s (+4.31%) | 1:30.448Carter Sheets · fastest of 2+4.896s (+5.72%) | 126.6Carter Sheets-3.0 mph (-2.3%) | 1:38.662Camden Gruber · fastest of 30 · top 5 within 0.2s-0.302s (-0.31%) | 1:38.765Skyler Cottrell · fastest of 30 · top 5 within 0.5s-1.159s (-1.16%) | 117.0Cam Ebben+1.0 mph (+0.9%) | +8.317squal +9.692s | 109.2%qual 110.9% | 1:36.988Mike Taylor · fastest of 13 · top 5 within 2.0s+0.632s (+0.66%) | 1:37.207Mike Taylor · fastest of 11 · top 5 within 1.3s+0.354s (+0.37%) | 120.1Derek Ketchie+1.7 mph (+1.5%) | +6.759squal +8.018s | 107.5%qual 109.0% | |||||||
9 rule changes (FC: 3, SMX: 5, STL: 1)1 cars added · 1 tyres & wheels · 1 weight · 6 wording · SMX allows OE instrument cluster relocation for aftermarket dash mounting, with wiring re-routed only; alternate gauges now permitted. · STL/STU: 90-05 Mazda Miata alternate front wheel hubs moved from General to specific part approval. · FC tire limit reduced to four dry and four wet for Regional/Major/Super Tour, eight for Runoffs. · FF and FC cars with sequential gearbox must add 10 lbs. to minimum weight, down from 25 lbs. · SMX Spec MX-5 camera requirement wording changed; non-functioning recorder now grounds for penalty or disqualification. · SMX Spec MX-5 must run latest AIM Data Logger Spec MX-5 ECU Protocol; wording clarification for technical compliance. · SMX Mazda Miata OE versus OEM definitions clarified in GCR Section 9.1.7.1. · SM and SMX shifter bushing rules clarified: alternate bushing at shift lever bottom now allowed. · FC adds F2000 Metrik ZF2 with Ford Zetec engine and four-piston Brembo calipers as spec-line car.show
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| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST24MAR082024-03-08 | 1:25.295Brandon Dixon · fastest of 7 · top 5 within 4.5s+0.613s (+0.72%) | 1:25.552Tim Minor · fastest of 6 · top 5 within 4.9s-1.803s (-2.06%) | 129.6Tim Minor-7.1 mph (-5.2%) | 1:30.014Clint McMahan · fastest of 8 · top 5 within 4.6s-5.777s (-6.03%) | 1:30.267Clint McMahan · fastest of 8 · top 5 within 4.8s-4.980s (-5.23%) | 132.1Calvin Stewart-3.7 mph (-2.7%) | +4.715squal +4.719s | 105.5%qual 105.5% | 1:38.964Michael Tinis · fastest of 33 · top 5 within 0.5s | 1:39.924Will Robusto · fastest of 33 · top 5 within 1.1s | 116.0Jack Murchison | +14.372squal +13.669s | 116.8%qual 116.0% | 1:36.356Danny Steyn · fastest of 15 · top 5 within 3.3s-0.113s (-0.12%) | 1:36.853Danny Steyn · fastest of 17 · top 5 within 2.8s+1.641s (+1.72%) | 118.3Mike Taylor-8.8 mph (-6.9%) | +11.301squal +11.061s | 113.2%qual 113.0% | ||
8 rule changes (FC: 3, STL: 5)2 engine · 2 induction · 1 cars added · 3 wording · STL and STU power steering rules clarified to permit electric-assisted and hydraulic-assisted steering systems. · STL Acura/Honda B-series and Mazda MZR restrictors reduced 2mm; minimum weights down 25–75 lbs for 1900–2000cc engines. · STL Mazda 12A must keep 5th and 6th intake port actuators and valves, no longer allowed removal or disabling. · F600 Rotax 494, 493, 593 engines now require single expansion chamber and pull starter; electric starter optional. · STL Mazda RX-7 12A (79-85) now allows auto-type 2 bbl with 42mm choke(s) on dual-y manifold as alternate to stock Nikki 4 bbl. · FC tire marking rule clarified: four dry and wet tires for Regionals, eight each for Runoffs; damaged tire replacement procedures revised. · USF2000 Van Diemen with Mazda MZR LF-DE 2.0L added as spec line car in FC; removed from FX. · STL ITA/ITS RX7 and 1985+ ITA/ITS/ITB/ITC vehicles clarified to conform to section 9.1.4.2 tire specifications.show
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| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST23MAR102023-03-10 | 1:24.682Brandon Dixon · fastest of 5 · top 5 within 8.8s | 1:27.355Brandon Dixon · fastest of 3 · top 3 within 4.6s | 136.6Brandon Dixon | 1:35.791George Bugg · fastest of 5 · top 5 within 8.8s | 1:35.247H Cory McLeod · fastest of 5 · top 5 within 9.3s | 135.8Jack Walbran | +7.892squal +11.109s | 109.0%qual 113.1% | 1:36.469Danny Steyn · fastest of 16 · top 5 within 3.9s | 1:35.212Danny Steyn · fastest of 17 · top 5 within 3.8s | 127.1Mike Taylor | +7.857squal +11.787s | 109.0%qual 113.9% | |||||||
56 earlier rule changes on record, in force before Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta (from 2019)10 induction · 7 weight · 5 cars added · 2 aero · 2 engine · 1 tyres & wheels · 29 wording · FC/FF PE3-8400 ECU monitor firmware version reduced from V3.04.50 to V3.04.35. · STL Spec MX5 clutch, wheels, and tyres specified: ACT 0000-02-5004-G6, 17x8 wheels, Toyo RR and RA1 235-40-17. · FC Ford Zetec Performance Electronics ECU model renamed PE-3 to PE3-8400; Monitor firmware updated to V3.04.50. · STU normally aspirated engines: minimum weights reduced up to 310 lbs; single throttle body weight reduction removed. · STL and STU Improved Touring vehicles must conform to 9.1.4 Tires & Wheels requirements. · FC chassis/frame section reorganized: anti-intrusion panels between main tubes clarified, suspension mounting restrictions strengthened, firewall requirements reworded. · STL and STU piston engines clarified: intake manifold and cylinder head porting remains free. · STL Mazda Renesis flat plate restrictor increases from 55mm to 60mm. · STL Mazda RX-7 12A 79-85 clarifies carburetor, emissions, and water jacket modification rules. · FC Zetec ECU requirements clarified: Pectel T2 or Performance PE-3 required with specific communications ports and SCCA tune-file/map. · FC composite anti-intrusion panels of non-uniform thickness limited to eight fasteners per side. · FC tire marking rules clarified: competitor responsible for declaring, marking, and logging tires with Tech before qualifying or race. · STL Spec MX-5 removes redundant specification line; no performance change. · STL Volkswagen 2.0L TFSI 1984cc classified with turbocharger removal required, meeting all other STL specs. · STL Pontiac Solstice/Saturn Sky allowed 4" ride height. · STL Mazda B5 DOHC added to classification with standard STL regulations. · STL Honda B16A JDM restrictor reduced from 54mm to 53mm. · ST oil coolers and filters now explicitly allowed to be added or substituted; wording clarifies existing permissions. · FC Pinto engine loses 10 lbs to 1190; Pinto aluminum head loses 10 lbs to 1190; Zetec loses 10 lbs to 1210. · STL GM Ecotec engines now permit any combination within the family, must use 55mm flat plate restrictor. · STL/STU 90-05 Mazda Miata gains approval for Mazda Motorsports Development alternate front wheel hubs. · ST cars may relocate ABS actuation hardware and wiring anywhere in engine compartment. · STL rear wing trailing edge, including end plates and gurney flap, maximum rearward mounting clarified to center of rearmost bodywork. · STL allows OEM gear sets from same manufacturer transmissions with input shaft modifications for fitment. · STL RWD strut suspension weight penalty cut to 0.5%, other RWD cut to 2.5%. · STL Honda F20C loses 2% weight penalty, minimum weight reduced by approximately 35 lbs. · STL Honda B16/B17/B18C1 restrictor tightened to 53mm; B18C variants and Mazda MZR to 52mm. · ST aero devices and reference areas now include end plates but exclude fasteners protruding over 1/2 inch. · FC: Pectel T2 and Performance PE-3 ECU maps clarified; SCCA Club or 2013 Pro map required. · FC Zetec engine minimum weight increases 20 lbs to 1220 lbs. · STL and STU clarify weight adjustment calculation order: engine adjustments first, then chassis adjustments. · STL and STU rear wing rules clarify that wicker is a Gurney flap; no performance change. · GT3 and STU add Borg-Warner EFR6258 to approved turbocharger list. · STL adds 2016-2019 Mazda MX-5 Global Cup at 2000cc, 2450-2550 lbs minimum weight. · STL Mazda MX-5 Club Model 06-15 allows Mazda header part number 0000-06-5407-NC. · STL Honda/Acura B18 non-C gets 54mm restrictor; B18C variants drop B18C1, get 53mm restrictor. · STL Honda B18 restrictor reduced from 54mm to 53mm flat plate; B18C1 added with 54mm restrictor. · STU GM Ecotech LNF now allowed with turbo removed or with LE5 head and intake manifold, meeting STL specs. · STL Mazda MZR restrictor reduced from 54 mm to 53 mm. · STL Mazda MZR restrictor reduced from 55 mm to 53 mm. · STL Mazda Spec MX5 Challenge adds approved wheel part numbers 0000-04-5706-GM, 0000-04-5706-SL. · FC Zetec connecting rods now allow Eagle #CRS5483F3D in addition to original Ford. · FC adds Mahle #930169439 piston as alternate option to existing Ford, Sealed Power, and United Engine choices. · Mazda Spec MX-5 Challenge classified in STL with 2000cc displacement and 2500 lbs minimum weight. · STU alternate intake manifolds now allowed case-by-case instead of prohibited. · STL Acura/Honda B18 except C engine restrictor increases from 53mm to 54mm flat plate. · FC Wiseco piston and Crower connecting rod part numbers updated; minimum weight 976 grams. · STL and STU ride height measurement clarified: without driver, at rocker panel lowest point, excluding pinch weld. · STL adds VW 1.8L R4 20VT 1781cc, 1 minimum weight, turbo removed permitted. · STL Mazda Renesis minimum weight reduced from 2800 to 2700 lbs. · STL Mazda MX-5 Cup brake pad compound changed to open. · STL adds Acura/Honda B18C1 GSR with 54mm flat plate restrictor and port matching limited to 1 inch. · STL Mazda 12 and 13B now permit port matching; previous ban removed. · FC Wiseco piston and Crower connecting rod assembly minimum weight increases from 555 to 976 grams. · STL B18C Type R variants get 54mm flat plate restrictor; B17 also gets 54mm restrictor. · STL Mazda Miata removes maximum displacement limit and adjusts minimum weight.show
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Best is the class's fastest lap in that event's qualifying or race sessions, with the driver who set it, how many cars set a time that session and how close the top five were; a best from fewer than three cars is greyed. With two or more classes, "vs" is the gap of each class's best to the first class's at the same event. "% of FC" is the class's best as a share of FC's best at the same event (100% is level, less is quicker): weather and track condition move every class together, so this compares across years where the raw times do not. It still breaks when FC's own field changes or one session was wet and another dry. Newest event first. The coloured figure under each value is the change from the previous event that has one (green is quicker, red slower). Whole laps only, so events with different sector layouts still compare. Weather and track condition are not accounted for.