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BoP Lab / Classes / FE 2

FE 2 vs GTX vs P pace at every track

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Reference · what % is measured against, 2 events
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2:012:022:034 rule changes between Runoffs 2025 and Runoffs 20264 ▾P race best at Runoffs 2025: 2:02.122 (Bart Wolf)P race best at Runoffs 2026: 2:03.283 (Lawrence Loshak)P qualifying best at Runoffs 2025: 2:01.180 (Lee Alexander)P qualifying best at Runoffs 2026: 2:02.281 (Perry Richardson)Road America · Runoffs 2025Runoffs2025Road America · Runoffs 2026Runoffs2026
FE 2GTXPsolid race · dashed qualifying · slower is lower
EventFE 2GTXP
Qual best Race best Trap Qual best Race best Trap vs FE 2 Qual best Race best Trap vs FE 2 
Road America Runoffs 20262026-09-282:02.281Perry Richardson · fastest of 10 · top 5 within 1.3s+1.101s (+0.91%)2:03.283Lawrence Loshak · fastest of 10 · top 5 within 0.8s+1.161s (+0.95%)165.6Jason Miller+0.7 mph (+0.4%)
4 rule changes (GTX: 3, P: 1)2 cars added · 1 removed · 1 suspension & brakesshowhide
  • GTX Ferrari 296 GT3 Classification Request #39873cars added
  • GTX Remove GT3U from GCR as it is now in STU #39862removed
  • GTX Please Consider Adding a Spec Line to GTX Table 4 for the RCR T70 #39470cars added
  • P Request to Continue to Allow Carbon Brakes #39476suspension & brakes
Road America Runoffs 20252025-09-292:01.180Lee Alexander · fastest of 14 · top 5 within 1.5s2:02.122Bart Wolf · fastest of 13 · top 5 within 2.1s165.0Jason Miller
47 earlier rule changes on record, in force before Runoffs 2025 (from 2019)19 cars added · 5 aero · 5 engine · 5 induction · 5 weight · 2 suspension & brakes · 1 tyres & wheels · 1 wording · 4 othershowhide
  • P 13B Rotary Engine Rules Change Request #38856induction
  • P Add Radical Cup series Radical SR3 spec line to Table 1 #38916other
  • P Clarify spec line cars language #38943weight
  • P RM 25-05 - Prototype Engine Table A, 2 Cycle Restrictor Change #38929induction
  • GTX Ligier P3 LS Swap #38164engine
  • GTX Request to Classify Porsche GT2 RS Clubsport #37972cars added
  • P Add missing punctuation marks #38150weight
  • P Correct text in engine table notes #37606engine
  • P Update Prototype class designation #37653tyres & wheels
  • GTX Correct language regarding OEM Areo Devices #37137aero
  • GTX Request for Spec Line 1010 Reconsideration #35009weight +300 lbs
  • GTX Rear Blade Spoiler Clarification #35261aero
  • GTX GT Direct Injection allowance and rules #35437engine
  • GTX GT2/3 remove Direction Injection not allowed in Spec line notes #35439engine
  • GTX KTM X Bow GTX #34956cars added
  • GTX Errors in GTCS Headings and Use of the Terms Category and ClassChange existing GTL and GTA Rules #34453weight
  • GTX Request Ligier LMP3 Classification #34043cars added
  • GTX Ligier JSP4 Request #34173cars added
  • GTX Please classify Fields Cardinal V8 #33784cars added
  • GTX GT2 (TA2)/GTA Part Number Update #33315induction
  • GTX Tail lights on all GT category race cars. #32799suspension & brakes
  • GTX Classify 992 GT3 Cup #32649cars added
  • GTX Add Classification to the accepted Model Table #31981weight
  • GTX Request to classify C7 Corvette Grand Sport IN GTX Misc #32254cars added
  • GTX E&O list of eligible prototypes #32511other
  • GTX McLaren 720s GT3 #31955cars added
  • GTX Remove restrictions from GTX-FIA GT3 #32039induction
  • GTX Request car classification #31032cars added
  • GTX Request to classify 2020 Porsche 718 GT4 Clubsport MR #30956cars added
  • GTX Request to Update GTA Obsolete Part Numbers #30615wording
  • GTX GTX class correction to GT2/ST #30973cars added
  • GTX Request classification of Grullon #30481cars added
  • GTX GT Category Wording #29193induction
  • GTX Request Car classification #28935cars added
  • GTX X-Bow GT4 #29088cars added
  • GTX TA2 Gurney flap wicker clarification #28874aero
  • GTX STO Gurney flap wicker clarification #28883aero
  • GTX GT Gurney flap wicker clarification #28909aero
  • GTX Request to Re-classify SP Stock car to GTX #28333cars added
  • GTX Request to Classify Lotus Evora GTS #27057cars added
  • GTX Windshield Clips #27323other
  • GTX Request Factory Five Daytona coupe classification #26308cars added
  • GTX Request GTX Fuel injection for previous GT-1 tube frame cars #26141engine
  • GTX Request to Classify Ligier JS2 R #26535cars added
  • GTX Request Ride Height Clarification #26600suspension & brakes
  • GTX Replace FIA references with SRO #26427other
  • GTX GTX Homologation table update #26034cars added

By track

TrackEvents 
Road America2
About this data
Every event the class ran, at any track, oldest to newest on the chart and newest first in the table. Each point is the class's best lap as a share of the reference class's best on the same day: the weather and the day cancel out, so one figure compares across years where lap times cannot; a class that suits one track more than another still reads differently there. It still moves when the yardstick's own balance changes or its field thins, and an event the yardstick did not run has no point. A best from fewer than three cars is greyed. The rule changes that took effect between two events are folded between their rows.