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BoP Lab / Michelin Raceway Road Atlanta

STL + FE2 + F5 + SMSE at Michelin Raceway Road Atlanta

Class · click a class to switch, + to compare alongside
Events

F5 has no laps in the events chosen. It ran at Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta, SARRC 2020, Atlanta Region 2019: add those events.

SMSE has no laps in the events chosen. It ran at SARRC 2020: add that event.

PosCarDriverClass#LapTheoreticalQualRace5-lap stintConsistencyTrapS1S2S3
1SCCA Ent FE2Franklin FutrelleFE27, 971:22.889 B-P1:22.6341:23.128 D-Q21:23.500 B-R21:23.672 B-R2+0.570 B-R2138.8 D-Q231.170 D-Q230.106 C-Q121.358 B-P
2SCCA Ent FE2Paul SchneiderFE2731:23.376 D-Q21:23.3001:23.376 D-Q21:23.549 B-R21:23.832 B-R2+0.850 B-R2139.7 D-Q131.573 B-R230.303 B-P21.424 B-Q1
3SCCA Ent FE2Charles Russell TurnerFE2321:23.456 D-Q21:23.3771:23.456 D-Q21:24.414 C-R21:33.717 C-R2+39.167 C-R2139.9 D-Q231.636 C-Q230.324 D-Q221.417 D-Q2
4SCCA Ent FE2Vaughn MishkoFE2771:23.632 B-Q21:23.5651:23.632 B-Q21:24.306 B-R21:24.502 B-R2+0.517 B-R2129.4 B-Q131.316 B-Q230.581 B-Q221.668 B-Q2
5SCCA Ent FE2Jason ConzoFE204, 41:23.910 C-Q21:23.7451:23.910 C-Q21:24.850 C-R21:33.900 C-R2+37.603 C-R2137.5 D-R131.399 D-Q130.538 C-Q121.808 C-Q2
6SCCA Ent FE2Eric WisniewskiFE2251:24.016 B-R21:23.6821:24.335 B-Q11:24.016 B-R21:24.452 B-R2+0.828 B-R2133.8 B-P31.533 B-P30.535 B-R221.614 B-Q1
7SCCA Ent FE2Whitney StricklandFE2491:25.213 B-Q11:24.6951:25.213 B-Q11:25.431 B-R11:25.745 B-R2+0.950 B-R2130.8 B-P31.910 B-Q230.863 B-P21.922 B-P
8SCCA Ent FE2Porter AikenFE2991:25.320 C-R21:24.8821:25.555 C-Q21:25.320 C-R21:33.763 C-R2+36.914 C-R2127.0 C-Q132.057 C-R230.813 C-R222.012 C-R2
9SCCA Ent FE2Darryl WillsFE2471:25.355 A-Q21:25.1121:25.355 A-Q21:25.653 A-R11:25.907 A-R1+0.575 A-R1136.5 A-R132.321 A-Q230.882 A-Q221.909 A-Q1
10SCCA Ent FE2Sebastian Mateo NaranjoFE2511:25.515 A-Q21:25.3261:25.515 A-Q21:26.786 A-R11:27.704 A-R2+4.783 A-R2135.2 A-R132.240 A-Q230.991 A-Q222.095 A-Q2
11SCCA Enterprises FE2Sterling HamiltonFE2091:25.643 D-R11:25.4481:26.106 D-Q21:25.643 D-R11:38.020 D-R2+1.513 D-R2136.6 D-Q232.281 D-R131.066 D-R122.101 D-Q2
12SCCA Ent FE2Eric CruzFE2861:25.667 D-Q21:25.6671:25.667 D-Q21:27.057 B-R11:27.775 A-R1+1.517 A-R1141.1 D-Q232.924 B-Q231.198 B-Q122.101 D-Q2
13SCCA Ent FE2Steve WhitstonFE218, 081:25.735 C-Q21:25.2871:25.735 C-Q21:25.867 C-R21:34.420 C-R2+31.325 C-R2136.2 D-Q232.200 C-Q231.024 C-Q122.063 C-Q1
14SCCA Ent FE2Ross WolfFE278, 181:25.833 B-P1:25.2361:26.220 B-Q21:26.050 B-R11:26.749 B-R1+5.148 B-R1130.0 B-P32.364 B-Q230.991 B-P21.881 B-P
15SCCA Enterprises FE2Thomas GreenFE2881:26.248 D-Q21:26.0951:26.248 D-Q21:27.640 D-R1139.1 D-Q232.506 D-Q231.304 D-Q222.285 D-Q2, D-R1
16SCCA Enterprises FE2James ReganFE201:26.638 D-Q21:26.1971:26.638 D-Q21:28.376 D-R11:54.708 D-R1+91.381 D-R1136.2 D-R133.014 D-Q231.007 D-Q222.176 D-Q2
17SCCA Ent FE2Paul RavarisFE2271:26.672 A-Q21:26.5471:26.672 A-Q21:27.872 A-R11:28.069 A-R1+0.577 A-R1136.1 A-R133.019 A-Q231.239 A-Q122.289 A-Q1
18SCCA Ent FE2Maximiliano JustFE2831:26.794 C-Q11:26.5831:26.794 C-Q11:27.339 C-R21:34.494 C-R2+27.676 C-R2128.0 C-Q132.911 C-Q231.289 C-Q122.383 C-Q2
19SCCA Enterprises FE2Lee RackleyFE2791:26.814 D-Q11:26.2181:26.814 D-Q11:28.469 D-R11:47.686 D-R2+7.127 D-R2138.2 D-Q232.839 D-Q131.001 D-Q222.378 D-Q2
20SCCA Ent FE2Roy HillenburgFE21111:27.686 B-R21:27.2021:27.889 B-Q11:27.686 B-R21:28.301 B-R2+2.598 B-R2128.4 B-Q133.300 B-R231.436 B-R222.466 B-Q2
21SCCA Ent FE2Bryan YatesFE21451:28.201 C-Q21:27.7211:28.201 C-Q21:29.535 C-R21:51.944 C-R2+76.023 C-R2136.4 D-Q233.373 C-Q231.541 C-Q222.807 C-Q2
22SCCA Ent FE2Marshall StockerFE2211:28.504 C-Q21:28.2771:28.504 C-Q21:31.514 C-R21:45.699 C-R1+5.640 C-R1127.6 C-Q233.595 C-Q231.783 C-Q222.899 C-Q2
23SCCA Ent FE2Jonathan WeisheitFE2671:28.560 C-Q21:28.1221:28.560 C-Q21:29.167 C-R21:44.905 C-R1+3.729 C-R1128.4 C-Q233.820 C-Q231.555 C-Q222.747 C-R2
24SCCA Enterprises FE2Colin RackleyFE2801:28.628 D-Q21:28.0921:28.628 D-Q21:29.237 D-R11:49.101 D-R2+5.681 D-R2136.6 D-Q233.917 D-Q131.311 D-Q222.864 D-Q2
25SCCA Enterprises FE2 MazdaJames BrookshireFE2281:29.575 D-Q21:29.5751:29.575 D-Q21:31.744 D-R11:54.386 D-R2+9.636 D-R2135.8 D-Q234.769 D-Q232.012 D-Q223.091 D-Q1
26SCCA Enterprises FE2Craig HaltomFE2431:30.571 D-Q11:30.5711:30.571 D-Q11:33.022 D-R11:55.313 D-R2+12.619 D-R2133.7 D-Q1, D-R136.286 D-R133.033 D-R123.077 D-Q1
27SCCA Ent FE2F Russell StrateFE2331:32.705 A-Q11:31.9411:32.705 A-Q11:32.899 A-R11:33.790 A-R1+1.463 A-R1137.8 A-R136.113 A-Q132.214 A-R123.614 A-R1
28SCCA Ent FE2Carl WingoFE2161:33.021 A-Q11:31.9721:33.021 A-Q11:33.268 A-R11:33.818 A-R1+1.150 A-R1134.0 A-R136.137 A-R132.268 A-R123.567 A-R1
29SCCA Ent FE2F Russell Strate JrFE2911:33.082 D-Q21:32.7481:33.082 D-Q21:36.878 C-R21:48.707 C-R1+3.268 C-R1134.1 D-Q236.718 D-Q232.152 D-Q223.878 D-Q2
30Mazda MX-5Danny SteynSTL9, 091:35.212 D-R11:35.2061:36.356 C-Q21:35.212 D-R11:36.254 D-R1+3.011 D-R1125.8 A-Q135.919 D-R134.982 D-R124.305 D-R1
31Acura IntegraMike TaylorSTL391:36.988 B-Q2sector data unreliable1:36.988 B-Q21:37.207 B-R11:37.543 C-R2+0.952 C-R2127.1 D-R136.8370.71024.656
32Acura Integra Type RJon SewellSTL481:37.238 B-Q2sector data unreliable1:37.238 B-Q21:38.131 B-R11:38.389 B-R1+0.623 B-R1123.6 A-Q137.1860.70124.728
33Mazda MiataNick LeveroneSTL371:37.270 A-Q1sector data unreliable1:37.270 A-Q11:37.930 A-R11:38.687 B-R1+0.665 B-R1124.9 A-Q136.9210.75424.892
34Mazda MX-5David Palfenier 2+ carsSTL401:37.370 C-R21:37.2441:37.838 C-Q21:37.370 C-R21:38.077 C-R2+2.650 C-R2116.5 C-Q237.189 C-R235.353 C-R224.702 C-R2
35Honda CivicDerek KetchieSTL15, 1151:37.935 B-R1sector data unreliable1:38.252 B-Q11:37.935 B-R11:38.288 B-R1+0.820 B-R1126.5 A-Q1, A-Q237.2820.98824.938
36Honda CRXJose Osiris PenaSTL1991:38.090 D-Q21:37.9271:38.090 D-Q21:38.269 D-R11:39.268 D-R1+2.987 D-R1125.2 D-R137.661 D-R135.135 D-R125.131 D-R1
37Mazda MiataChuck HinesSTL571:38.488 B-R11:38.1011:38.974 B-Q11:38.488 B-R11:39.325 B-R1+1.722 B-R1124.2 D-R137.435 B-R135.622 D-R125.044 B-R1
38Acura Integra GSRZsolt FerenczySTL181:38.779 B-R1sector data unreliable1:39.888 A-Q11:38.779 B-R11:39.442 B-R1+1.254 B-R1123.8 D-R137.6350.77625.006
39Honda S2000Gonzalo AponteSTL144, 141:38.933 A-Q11:38.5811:38.933 A-Q11:39.988 A-R11:42.300 A-R1+12.639 A-R1119.0 A-Q2, A-R137.827 A-Q135.727 A-Q125.027 A-Q1
40Mazda MX-5William KnightSTL1471:39.058 D-R11:38.5261:39.779 D-Q21:39.058 D-R11:39.730 D-R1+1.024 D-R1124.9 D-R137.950 D-R135.615 D-R124.961 D-R1
41Mazda MX-5Austin HillSTL8, 081:39.631 C-Q11:39.4011:39.631 C-Q11:43.500 C-R11:44.165 C-R1+1.148 C-R1111.1 C-Q137.718 C-Q136.208 C-Q125.475 C-Q1
42Honda S2000Austin HilliardSTL101:40.318 C-R21:40.1641:41.074 C-Q21:40.318 C-R21:40.592 C-R2+1.577 C-R2121.1 D-R138.282 C-R236.289 C-R225.593 C-R2
43Mazda MiataGavin WardleSTL1691:40.337 A-P1:40.3371:41.336 A-Q11:41.714 A-R11:42.086 A-R1+3.344 A-R1117.7 A-Q138.609 A-Q136.820 A-Q125.553 A-Q1
44Mazda MiataThomas PaolinoSTL341:40.417 B-Psector data unreliable1:40.524 B-Q21:40.823 B-R21:41.138 B-R2+0.999 B-R2115.8 B-P37.9150.74525.603
45Ford Focus ZX3Michael SperberSTL281:40.566 D-R11:40.4351:41.613 D-Q21:40.566 D-R1124.2 D-R138.466 D-R136.110 D-R125.859 D-R1
46Ford MustangNathan PringSTL811:40.762 D-R11:40.3351:41.724 D-Q21:40.762 D-R11:41.228 D-R1+1.365 D-R1121.9 D-R138.281 D-R136.270 D-R125.784 D-R1
47Mazda MiataPeter Tonelli IISTL51:40.969 A-Q21:40.9131:40.969 A-Q2116.5 A-Q1, A-Q238.300 A-Q236.842 A-Q225.771 A-Q2
48Toyota GT86Javier Sanchez 2+ carsSTL891:41.142 C-R21:40.8411:41.554 C-Q11:41.142 C-R21:41.706 C-R2+2.610 C-R2111.8 C-R238.714 C-R236.468 C-R225.659 C-R2
49Mazda MiataJavier Sanchez 2+ carsSTL791:41.262 B-Q21:40.8191:41.262 B-Q21:42.608 B-R11:43.240 B-R1+0.687 B-R1112.5 B-P38.344 B-P36.735 B-P25.740 B-Q2
50Mazda RFDavid Palfenier 2+ carsSTL401:41.430 D-Q21:41.4301:41.430 D-Q21:46.267 D-R1119.1 D-R138.110 D-R137.672 D-R126.252 D-R1
51Mazda MX-5Adrian ComstockSTL51:41.743 C-R21:41.3741:41.901 C-Q21:41.743 C-R21:42.208 C-R2+1.732 C-R2111.1 C-R238.684 C-Q236.949 C-R225.741 C-R2
52Mazda MiataChristopher ChildsSTL71:42.095 C-R21:41.5681:43.524 C-Q21:42.095 C-R21:42.597 C-R2+0.834 C-R2110.3 C-R238.351 C-R237.207 C-R226.010 C-R2
53Acura IntegraPedro ColonSTL501:43.222 D-R11:42.5441:43.874 D-Q21:43.222 D-R11:44.941 D-R1+1.341 D-R1117.9 D-R139.258 D-R136.962 D-R126.324 D-R1
54Mazda MiataMax StalloneSTL031:43.619 B-P1:43.6151:44.329 B-Q21:44.036 B-R21:45.557 B-R1+1.968 B-R1103.5 B-P38.629 B-P38.410 B-P26.576 B-P
55Mazda MiataAlex RubensteinSTL621:44.270 A-Q11:44.0321:44.270 A-Q11:46.469 A-R11:48.539 A-R1+5.106 A-R1112.7 A-Q139.580 A-Q138.077 A-Q126.375 A-Q1
56Mazda MiataTyler BrownSTL071:44.493 C-R21:44.4731:44.493 C-R21:45.472 C-R2+2.231 C-R2103.5 C-R239.225 C-R238.274 C-R226.974 C-R2
57Mazda MiataCliff BrownSTL01, 11:44.822 A-P1:44.8221:46.793 C-Q2104.1 A-P39.531 A-P38.527 A-P26.840 A-P
58Mazda MiataTom BrownSTL271:44.945 C-R21:44.4921:44.945 C-R21:45.430 C-R2+1.766 C-R2105.1 C-R239.473 C-R238.231 C-R226.788 C-R2
59Mazda MiataJohn HamnerSTL71:44.989 A-Q11:44.6391:44.989 A-Q11:46.620 A-R11:48.118 A-R1+3.462 A-R1108.2 A-Q139.388 A-Q138.353 A-Q126.898 A-Q1
60Mazda MiataZach EhrlichSTL1801:45.057 C-Q11:44.7911:45.057 C-Q1100.8 C-Q139.284 C-Q138.657 C-Q126.850 C-Q1
61Mazda MiataAndrew DevotoSTL091:45.072 C-R21:44.3311:45.072 C-R21:45.478 C-R2+1.419 C-R2103.4 C-R239.117 C-R238.305 C-R226.909 C-R2
62Mazda MiataSenter SmithSTL551:45.171 C-R21:44.5861:45.171 C-R21:45.567 C-R2+1.372 C-R2105.0 C-R239.273 C-R238.495 C-R226.818 C-R2
63Mazda MiataBob Mueller Jr.STL601:45.298 A-R11:44.9941:45.381 A-Q11:45.298 A-R11:47.704 A-R1+9.393 A-R1109.0 A-Q139.419 A-P38.542 A-Q127.033 A-Q1
64Mazda MiataGrant JanishSTL1781:45.612 D-R11:45.6121:47.258 D-Q21:45.612 D-R11:48.270 D-R1+3.906 D-R1110.9 D-R140.766 D-R138.610 D-R126.991 D-R1
65Mazda MiataGreg BogartSTL1231:45.969 A-P1:45.842102.9 A-P39.989 A-P38.967 A-P26.886 A-P
66Mazda MiataChris ClarkeSTL1091:46.187 D-R11:46.1871:50.092 D-Q21:46.187 D-R11:48.260 D-R1+3.045 D-R1112.2 D-R141.136 D-R138.654 D-R126.850 D-R1
67Mazda MiataRandall JoeSTL65, 61:46.604 D-R11:46.0891:46.692 D-Q21:46.604 D-R11:48.339 B-R1+0.952 B-R1111.0 D-R140.056 A-Q138.881 B-P27.152 D-R1
68Mazda RX-7Neil GueldnerSTL681:46.639 D-R11:46.3911:47.935 D-Q21:46.639 D-R11:47.764 D-R1+1.610 D-R1120.1 D-R141.878 D-R137.283 D-R127.230 D-R1
69Mazda MiataMike RyanSTL1201:46.841 C-Q11:46.5531:46.841 C-Q11:49.199 C-R11:49.627 C-R1+2.010 C-R1102.1 C-R140.073 C-Q139.285 C-Q127.195 B-P
70Mazda Miata (1999)Jason GreenwoodSTL1001:48.458 D-R11:48.4581:48.458 D-R11:51.546 D-R1+4.169 D-R1106.3 D-R141.121 D-R139.941 D-R127.777 D-R1
71Mazda MiataWarren SackmanSTL761:49.404 B-R21:48.7621:49.721 B-Q21:49.404 B-R21:49.633 B-R2+1.217 B-R2101.3 B-P41.367 B-R239.545 B-R227.850 B-Q1
72Mazda MiataBruce Allen >115%STL431:50.058 C-R21:49.7361:50.773 C-Q11:50.058 C-R21:50.699 C-R2+2.182 C-R297.7 C-R241.524 C-R239.886 C-R228.326 C-R2
73Mazda Miata (2001)Brayton Williams >115%STL041:50.868 A-R11:50.4931:51.399 A-Q11:50.868 A-R11:53.207 A-R1+7.710 A-R1103.4 A-R142.427 A-Q140.073 A-R127.993 A-Q1
74Honda S2000Darrel Stein >115%STL1691:50.951 B-Q11:48.8991:50.951 B-Q1110.3 B-Q142.564 B-Q138.170 B-Q128.165 B-Q1
75Mazda MiataMax Schweid >115%STL912:19.300 D-P94.7 D-P

One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it. Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.

Sectors

Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.

By car

CarClassDriversLapQualRaceTrapS1S2S3
SCCA Ent FE2FE2291:22.889Franklin Futrelle1:23.128Franklin Futrelle1:23.500Franklin Futrelle141.1Eric Cruz31.170Franklin Futrelle30.106Franklin Futrelle21.358Franklin Futrelle
Mazda MX-5STL51:35.212Danny Steyn1:36.356Danny Steyn1:35.212Danny Steyn125.8Danny Steyn35.919Danny Steyn34.982Danny Steyn24.305Danny Steyn
Acura IntegraSTL21:36.988Mike Taylor1:36.988Mike Taylor1:37.207Mike Taylor127.1Mike Taylor36.837Mike Taylor0.710Mike Taylor24.656Mike Taylor
Acura Integra Type RSTL11:37.238Jon Sewell1:37.238Jon Sewell1:38.131Jon Sewell123.6Jon Sewell37.186Jon Sewell0.701Jon Sewell24.728Jon Sewell
Mazda MiataSTL271:37.270Nick Leverone1:37.270Nick Leverone1:37.930Nick Leverone124.9Nick Leverone36.921Nick Leverone0.745Thomas Paolino24.892Nick Leverone
Honda CivicSTL11:37.935Derek Ketchie1:38.252Derek Ketchie1:37.935Derek Ketchie126.5Derek Ketchie37.282Derek Ketchie0.988Derek Ketchie24.938Derek Ketchie
Honda CRXSTL11:38.090Jose Osiris Pena1:38.090Jose Osiris Pena1:38.269Jose Osiris Pena125.2Jose Osiris Pena37.661Jose Osiris Pena35.135Jose Osiris Pena25.131Jose Osiris Pena
Acura Integra GSRSTL11:38.779Zsolt Ferenczy1:39.888Zsolt Ferenczy1:38.779Zsolt Ferenczy123.8Zsolt Ferenczy37.635Zsolt Ferenczy0.776Zsolt Ferenczy25.006Zsolt Ferenczy
Honda S2000STL31:38.933Gonzalo Aponte1:38.933Gonzalo Aponte1:39.988Gonzalo Aponte121.1Austin Hilliard37.827Gonzalo Aponte35.727Gonzalo Aponte25.027Gonzalo Aponte
Ford Focus ZX3STL11:40.566Michael Sperber1:41.613Michael Sperber1:40.566Michael Sperber124.2Michael Sperber38.466Michael Sperber36.110Michael Sperber25.859Michael Sperber
Ford MustangSTL11:40.762Nathan Pring1:41.724Nathan Pring1:40.762Nathan Pring121.9Nathan Pring38.281Nathan Pring36.270Nathan Pring25.784Nathan Pring
Toyota GT86STL11:41.142Javier Sanchez1:41.554Javier Sanchez1:41.142Javier Sanchez111.8Javier Sanchez38.714Javier Sanchez36.468Javier Sanchez25.659Javier Sanchez
Mazda RFSTL11:41.430David Palfenier1:41.430David Palfenier1:46.267David Palfenier119.1David Palfenier38.110David Palfenier37.672David Palfenier26.252David Palfenier
Mazda RX-7STL11:46.639Neil Gueldner1:47.935Neil Gueldner1:46.639Neil Gueldner120.1Neil Gueldner41.878Neil Gueldner37.283Neil Gueldner27.230Neil Gueldner

The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.

Rule changes between these events

Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta → Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta 2023-03-10 to 2024-03-08

STL Clarify STL table B - IT spec notes on Tires

#34187 from Austin Hilliard · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

wordingSTL ITA/ITS RX7 and 1985+ ITA/ITS/ITB/ITC vehicles clarified to conform to section 9.1.4.2 tire specifications.

As printed in Fastrack

In STL Spec Lines, Table B: Alternate Vehicle and Engine Allowances, change Notes as follows:
ITA-spec and ITS-spec RX7: "Must completely conform to ITCS specifications. Tires must conform to 9.1.4, Tires & Wheels. Tires
must also conform to 9.1.4.2.Tires."
ITS, ITA, ITB, or ITC vehicles (1985- ): "Must completely conform to ITCS specifications. Tires must conform to 9.1.4, Tires &
Wheels. Tires must also conform to 9.1.4.2.Tires."

STL Alternate Carburetor Request for 79-85 RX7 12a

#35181 from Dan Sheppard · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

unclearSTL 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.

As printed in Fastrack

In STL Table B: Alternate Vehicle and Engine Allowances, Mazda RX-7 12A (79-85), change Notes as follows:
"Street Porting of the engine only. Bridge porting, peripheral porting, and eyelash porting are prohibited. Contact SCCA National
Office for details of Street porting. Stock Nikki 4 bbl carburetor on a stock manifold only. or auto-type 2 bbl w/42mm choke(s) on
a “dual-y” manifold. Allow the standard removal of emissions related components, and allow air and fuel jets to be corrected.
Modification of the water jacket in the area of the spark plug for cooling purposes is permitted."

STL ST Electric-Assisted Steering Systems

#35066 from Jose Osiris Pena · Rule change · TB 24-02 (2024-01 Fastrack)

Summary

wordingSTL and STU power steering rules clarified to permit electric-assisted and hydraulic-assisted steering systems.

As printed in Fastrack

In GCR, Section 9.1.4.M.16., change as follows:
"Power steering may be modified in any of the following ways:
a. disconnected , pump, belt, pulley, and hoses may be removed. Hoses may also be looped. Steering rack or box may be
modified internally to work without pump.
b. an OEM manual steering rack for that model may be fitted
c. an electric power steering pump may be fitted
d. an OEM electric-assisted steering system may be used or any column mounted electric steering assist may be used
e. an OEM hydraulic-assisted steering system may be used"

STL BOP Adjustments

#35112 from Super Touring Committee · Rule change · TB 24-02 (2024-01 Fastrack)

Summary

fasterSTL Acura/Honda B-series and Mazda MZR restrictors reduced 2mm; minimum weights down 25–75 lbs for 1900–2000cc engines.

As printed in Fastrack

In GCR, 9.1.4.H.1., change as follows:
"Minimum weights for cars with normally aspirated piston engines will be determined by 1.35 lbs/cc displacement for
the installed engine (see the following table). Displacement is the factory displacement for the installed engine. For the
purpose of weight assignment, engine displacement will be rounded to the nearest 50cc (e.g., 2176cc = 2200cc and
2175cc = 2150cc)."
In GCR, 9.1.4.H.1., change Minimum Weight on Chart as follows:
Factory Engine Displacement 1900: "Effective 3-1-24: 2565 2540"
Factory Engine Displacement 1950: "Effective 3-1-24: 2633 2583"

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Factory Engine Displacement 2000: "Effective 3-1-24: 2700 2625"
In GCR, 9.1.4.H.3., change as follows:
"Front wheel drive cars with a strut type front suspension may reduce their minimum weight by 2.5 percent. Effective 3-
1-24: Front wheel drive cars with 95" or less wheelbase must add 1.25% to their minimum weight."
In STL Spec Lines, change Notes as follows:
Acura/Honda B16: "Effective 3-1-24: 53 51mm"
Acura/Honda B17: "Effective 3-1-24: 53 51mm"
Acura/Honda B18C1: "Effective 3-1-24: 53 51mm"
Acura/Honda B18C (JDM Type R), B18C5 (USDM Type R), B18C6 (UK and Euro Type R), B18C7 (Australia Type R):
"Effective 3-1-24:52 50mm"
Mazda MZR: "Effective 3-1-24: 52 50mm"

STL Mazda 12A

#35320 from Super Touring Committee · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

slowerSTL Mazda 12A must keep 5th and 6th intake port actuators and valves, no longer allowed removal or disabling.

As printed in Fastrack

In STL Spec Lines, Table A, Mazda 12A, change Notes as follows:
"The 5th and 6th intake port actuators and valves may be removed or disabled."

Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta → Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta 2024-03-08 to 2025-03-07

STL Request to Remove Miata Hubs from General category

#37138 from Christopher Childs · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingSTL/STU: 90-05 Mazda Miata alternate front wheel hubs moved from General to specific part approval.

As printed in Fastrack

In GCR, Section 9.1.4.M.18., change as follows:
"18. Allow alternate front wheel front hubs, Mazda Motorsports Development Part #0000-04-5HUB-S1, for the 90-05 Mazda
Miata: Mazda Motorsports Development Part #0000-04-5HUB-S1."

Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta → Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta 2025-03-07 to 2026-03-06

FE2 Driver Safety & Comfort

#37965 from Robey Clark · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

wordingFE2 allows driver safety and comfort modifications for disabled drivers with SCCA approval, not transferable to other drivers.

As printed in Fastrack

In FE2, GCR section 9.1.1.G.2.E, add the following:
"g. Driver Safety and Comfort modifications to seat and controls for drivers with disabilities may be made only by approval. These
modifications must be reported to SCCA Enterprises and noted in the car logbook. The modifications are approved only for the
noted driver with disabilities. If the car is used by or sold to another driver, it must be returned to the previous standard
configuration."

STL E&O: SMX Allowance in STL

#37945 from Greg Amy · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

unclearSTL Mazda MX5 Challenge minimum weight now references GCR 9.1.7.1 instead of 2500 lbs; spec components removed, only alternative tires allowed.

As printed in Fastrack

In STL Spec Lines, Table B, Mazda Spec MX5 Challenge, change as follows:
Minimum Weight: "2500 See 9.1.7.1."
Notes: "Mazda MX5 Challenge car must utilize the following components: Roush CNC cylinder head 0000-01-5300,Mahle
standard or +0.005 0000-01-5310, OEM camshaft, 11:1 compression ratio, header 0000-06-5407-NC, exhaust 0000-06-5427-NC,
cold air intake 0000- 06-5150-KT, ECU flash 0000-01-5379, Pagid front brake pads 0000-03-5104-SP or endurance pads 0000-03-
5104-EN, Pagid rear brake pads 0000-03-5114-SP or endurance pads 0000-03-5114-EN, Penske front shock 0000-04-5291-SA,
Penske rear shock 0000-04-5292-SA, Penske rear mount kit 0000-04-5358, Front mount kit 0000-04-5359, Front offset bushing
0000-04-5407-NC, Eibach front springs 0000-04-9700-08, Eibach rear springs 0000-04-9400-07, Eibach helper springs 0000-04-

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9926, Eibach front sway bar 0000-04-5306-FT, Eibach rear sway bar 0000-04-5306-RR, Interior finish panels 0000-07-5822, C&R
radiator/oil cooler assembly 0000-01-5504-CR, Oil cooler adapter and lines 0000-01-5511-KT, ACT clutch 0000-02-5004-G6,
wheels 17x8 #0000-04-5706-GM, # 0000- 04-5706-SL, and Toyo RR 235-40-17 dry, Toyo RA1 235-40-17 wet. Alternative tires on
17x7 wheels per STL rules. No other Super Touring modifications or allowances permitted except as noted in this spec line. Must
conform completely to GCR 9.1.7.1, except alternative tires (only) per STL regs allowed."

Applies to Mazda MX-5 on this page: Danny Steyn, David Palfenier, William Knight, Austin Hill, Adrian Comstock

STL Lotus Weight Reduction

#38772 from Club Racing Board · Rule change · TB 25-08 (2025-08 Fastrack)

Summary

fasterSTL/STU Lotus weight reduced: Evora GT4 to 2700 lbs, Elise Cup R to 2250 lbs, Elise/Exige SC to 2450-2550 lbs.

As printed in Fastrack

In 9.1.2. GT2/ST Spec Lines, Lotus Evora GT4, change Weight as follows:
"2750 2700"
In STU Table B: Alternate Vehicle and Engine Allowances, change Weight as follows:
Lotus Elise Cup R: "2300 2250"
Lotus Elise SC/ Lotus Exige SC: "2300 2550
2500 2450"

FE2 FE & FE2 Bubble Tail

#38978 from Robey Clark · Rule change · TB 25-10 (2025-10 Fastrack)

Summary

wordingFE and FE2 Enterprises must use bubble tail P/N WM138014; FE2 allows only this configuration.

As printed in Fastrack

In FE, GCR section 9.1.1.G.2.F.k, change as follows:
"Enterprises bubble tail P/N: WM138014 is allowed for FE and is the only configuration for FE2."

STL Weight adjustment for STL

#39579 from Super Touring Committee · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

slowerSTL minimum weights increase across all classes, 1300 cc gains 195 lbs to 1950, up to 1850 cc at 2500.

As printed in Fastrack

In GCR, Section 9.1.4.2.H.1. change Minimum Weight on chart as follows:

A specification table follows in the original; it is not shown here.

What the rules allowed changed as listed; this does not say what any particular car ran.