Official results win over the timing feed: the live timing recorded a 2:02.710 for Joe Schubert in Runoffs 2017 SM (LCR) Last Chance Race, but the official results credit 2:03.262 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too; the live timing recorded a 2:01.967 for Charlie Campbell in Runoffs 2017 SM (LCR) Last Chance Race, but the official results credit 2:02.054 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too; the live timing recorded a 2:02.258 for Brian Wright in Runoffs 2017 SM (LCR) Last Chance Race, but the official results credit 2:02.859 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too; the live timing recorded a 2:03.053 for Steve Sturm in Runoffs 2017 SM (LCR) Last Chance Race, but the official results credit 2:03.349 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too; the live timing recorded a 2:03.002 for James DeFinnis in Runoffs 2017 SM (LCR) Last Chance Race, but the official results credit 2:03.203 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too; the live timing recorded a 2:03.262 for Dave Metz in Runoffs 2017 SM (LCR) Last Chance Race, but the official results credit 2:03.371 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too; the live timing recorded a 2:02.707 for Michael LaMaina in Runoffs 2017 SM (LCR) Last Chance Race, but the official results credit 2:03.067 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too; the live timing recorded a 2:03.035 for Robert Spence in Runoffs 2017 SM (LCR) Last Chance Race, but the official results credit 2:03.171 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too.
One lap is left out as timing errors (far too short to be a lap of this track). The rest of those sessions, sectors included, is used.
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
S1 SF → IM3 1.37 mi
S2 IM3 → IM4 0.48 mi
S3 IM4 → SF 0.75 mi
SPd IM1 → IM2 0.02 mi
Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
Rule changes between these events
Runoffs 2017 → Runoffs 2021 2017-09-25 to 2021-09-25
SM Request 99-00 replacement Wire harnesses
#25602 from Ralph Provitz · Rule change · TB 19-02 (2019-02 Fastrack)
neutralSM 1999-2000 model year cars may use replacement Mazda ECU and injector harnesses, unmodified.
In SM, GCR section 9.1.7.O, add new section and wording as follows: “2. ECU to Engine Harness (Mazda P/N - 0000-10-020E-99) and Injector Harness (Mazda P/N 0000-10-080D-99) may be used on 1999 and 2000 model year cars. They must be used in their entirety and may not be modified in any way.”
SM Organize and Clarify 9.1.7.C.1.o.
#25913 from Richard Powers · Rule change · TB 19-02 (2019-02 Fastrack)
neutralSM electrical rules reorganized and clarified; alternator external regulation now prohibited except via OEM ECU/kill switch.
In SM, GCR section 9.1.7.C.1.0, remove the entire section and replace with new format and wording as follows: Electrical Equipment 1. The ECU and engine electrical harness must be as supplied by Mazda. No modifications are permitted. The ECU maps and inputs must not be modified. Chips may not be replaced. The OBDII diagnostic port must be operational in all 1996-2005 cars. 2. Ignition coils must be stock Mazda parts. No modifications are permitted. 3. All sensors related to engine operating parameters must be used and must be stock Mazda
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parts. These sensors and their locations and mounts, and their wiring harness leads may not be altered except as allowed in subsection 9 below. Any sensors required for analog type gauges must be in addition to the Mazda sensors. Data acquisition sensors may be added. Relocating the oil pressure sending in order to install an oil pressure gauge is permitted. On 96-05 cars a single fixed bracket may be installed to support and secure the crank position sensor (CPS) in its stock location. The bracket may only attach to the CPS, the CPS mounting bolt, and the closest oil pump threaded mounting hole and must serve no other purpose. 4. The alternator may be OEM equivalent. The alternator drive pulley must be stock. The alternator must not be disabled in any way. Spark plugs and spark plug wires may be substituted. Ignition timing is unrestricted within stock adjustment capability. 5. Batteries may be replaced with those of an alternate manufacturer, provided they are of similar amp-hour capacity, size, and are fitted in the standard location. Batteries shall weigh 18.0- 28.0 lbs. Additional battery hold-down devices may be used and are strongly recommended. 6. For 1999-2005 model years only, it is permitted to alter the ignition timing either by elongating the mounting holes of the stock crankshaft position sensor trigger wheel or by replacing it with the Mazda adjustable trigger wheel, part number 0000-10-5100-AJ. Fasteners (including upsizing) are open for pulley/timing plate attachment. 7. It is permitted to remove all components of the cruise control system. 8. It is permitted to remove the horn. 9. An electrical pigtail ranging from 3” to 6” in length and terminated with any 3 pin electrical connector may be soldered and potted to the OEM cam sensor for the purpose of correcting a known issue with the factory connection. The factory harness connector may be removed and replaced with the appropriate mating connector. 10. Auxiliary control of the radiator cooling fan may be added to power the fan independent of the ECU. OEM control of the fan must remain functional. o. Electrical Equipment 1. Batteries may be replaced with those of an alternate manufacturer, provided they are of similar amp-hour capacity, size, and are fitted in the standard location. Batteries shall weigh 18.0- 28.0 lbs. Additional battery hold-down devices may be used and are strongly recommended. 2. The alternator may be OEM equivalent. The alternator drive pulley must be stock. The Alternator must not be externally regulated or disabled in any way other than by the OEM production ECU/Wiring circuit and Master Kill switch. 3. Ignition coils must be stock Mazda parts. No modifications are permitted. Spark plugs and spark plug wires may be substituted. Ignition timing is unrestricted within stock adjustment capability. For 1999-2005 model years only, it is permitted to alter the ignition timing either by elongating the mounting holes of the stock crankshaft position sensor trigger wheel or by replacing it with the Mazda adjustable trigger wheel, part number 0000-10-5100-AJ. Fasteners (including upsizing) are open for pulley/timing plate attachment. 4. The ECU, engine and emission electrical harnesses must be as supplied by Mazda. No circuit modifications are permitted. The ECU maps and inputs must not be modified. Chips may not be replaced. The OBDII diagnostic port must be operational in all 1996-2005 cars. Damaged harness wires and/or connectors may be repaired by splicing of OEM equivalent connectors and leads. 5. All sensors related to engine operating parameters must be used and must be stock Mazda parts. These sensors and their locations and mounts, and their wiring harness leads may not be altered except as allowed in subsection 6 below. Any sensors required for analog type gauges must be in addition to the Mazda sensors. Data acquisition sensors may be added. Relocating/removal of the oil pressure sending unit in order to install an oil pressure gauge is permitted. On96-05 cars a single fixed bracket may be installed to support and secure the crank position sensor (CPS) in its stock location. The bracket may only attach to the CPS, the CPS mounting bolt, and the closest oil pump threaded mounting hole and must serve no other purpose. 6. An electrical pigtail ranging from 3” to 6” in length and terminated with any 3 pin electrical connector may be soldered and potted to the OEM cam sensor for the purpose of correcting a known issue with the factory connection. The factory harness connector may be removed and replaced with the appropriate mating connector. 7. It is permitted to remove the horn. 8. It is permitted to remove all components of the cruise control system. 9. Auxiliary control of the radiator cooling fan may be added to activate the fan independent of the ECU. OEM control of the fan must remain functional.
In SM, GCR section 9.1.7.C.5, remove the section as follows: e. Tire tread (that portion of the tire that contacts the ground under static conditions) shall not protrude beyond the fender opening when viewed from the top perpendicular to the ground. To determine compliance, the vehicle should be rolled through a powdered substance, as raced with driver, in order to indicate the tire tread contact patch under static conditions.
SM Request to allow aftermarket fuel filters.
#26370 from Jim Graffy · Rule change · TB 19-03 (2019-03 Fastrack)
neutralSM fuel pump and filter must be Mazda or OEM Equivalent part.
In SM, GCR section 9.1.7.C.1.k.1, add to the wording as follows: “The fuel pump and filter must be a Mazda or OEM Equivalent part.”
SM Modifications to prevent failures of Rear Brake Caliper Pin
#28953 from Richard Powers · Rule change · TB 20-08 (2020-08 Fastrack)
neutralSM rear brake calipers may use single bracket under upper retaining bolt to prevent pin failure.
In SM, GCR Section, 9.1.7.4., add as follows: "g. A single bracket per rear brake caliper for the purposes of keeping the rear brake calipers in place in the event of a rear upper caliper pin failure is permitted. It must be installed under the head of the rear upper caliper retaining bolt and may serve no other purpose."
neutralSM aftermarket radiators must mount in original location, maintain core plane, require no body modifications, block openings, keep one OEM fan in stock location; 1990-1997 cars may install upper radiator seal NA75-50-OK7A.
In SM, GCR Section 9.1.7.C.1.n., Cooling System, change as follows: "2. Any aftermarket radiator (and mounting brackets) may be used, provided it is mounted in the original location, maintains the same plane as the original core, and requires no body or structure modifications to install, and servers no other purpose (ex. directing cold air to the airbox). Any openings created by fitting an alternate radiator must be blocked to prevent air from entering the engine compartment. The top gap between the radiator core support and the radiator may be blocked. At least one functional stock OEM cooling fan must be maintained and mounted in the stock location. The fan shroud may be modified for installation." "6. All 1990-1997 cars may install the upper radiator seal, p/n NA75-50-OK7A."
neutralSM adds procedures for testing obsolete part replacements and BOP updates in sanctioned events with CRB approval.
In SM, Section 9.1.7.C., add as follows: "10. Updates a. Obsolete Parts When part updates are needed, because of reliability, supply or obsolescence, testing of parts from alternative, updated sources with direction and approval from the CRB may be used in sanctioned events. Such updates would only be effective when or if finalized by the CRB, and published in Fastrack. Any testing done during sanctioned events will require the driver/car to forfeit any points, finishing position, and/or contingency. b. BOP Testing
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For purposes of maintaining a healthy future for Spec Miata specific to balance of power (BOP) and overall parity, parts or software identified with direction and approval from the CRB may be used in sanctioned events. Such updates will only be effective when or if finalized by the CRB, and published in Fastrack. Any testing done during sanctioned events will require the driver/car to forfeit any points, finishing position, and/or contingency."
What the rules allowed changed as listed; this does not say what any particular car ran.