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BoP Lab / Portland International Raceway

SRF3 at Portland International Raceway

No mapOregon 2025, Oregon Region Hoosier SCCA Super Tour @ Portland International Raceway

Track map: sectors and speed trap

Track map with timing sectors and speed trap
Shown for: Oregon 2026 (qualifying, race)
Class · click a class to switch, + to compare alongside
AS+B-Spec+EP+F6+FA+FE2+FF+FP+FV+GT1+GT2+GT3+GT3U+GTL+GTX+HP+P+P1+P2+SM+SMX+SRF3×STL+STU+T1+T2+T3+T4+
Track configuration
Events

This track has been raced on 2 configurations (19 Scoring Sidebar, 1.88 mi; 19 Scoring Sidebar, 1.97 mi). Laps on different configurations are not comparable, so only events on the 1.88 mile layout are shown; switch above to see the others.

PosCarDriverClass#LapTheoreticalQualRace5-lap stintConsistencyTrapS1S2S3
1SCCA Ent SRF3Caleb ShraderSRF3991:22.070 A-Q11:21.8001:22.070 A-Q11:22.116 A-R21:22.262 A-R2+0.519 A-R2124.8 A-R230.004 A-Q128.836 A-R222.960 A-R2
2SCCA Ent SRF3John BlackSRF3171:22.093 A-Q11:21.8981:22.093 A-Q11:22.214 A-R21:22.380 A-R2+0.433 A-R2126.2 A-R230.220 A-Q128.651 A-Q123.027 A-Q1
3SCCA Ent SRF3Asad NikadambaevSRF31441:22.178 A-R21:21.9031:22.315 A-Q11:22.178 A-R21:22.256 A-R2+0.496 A-R2125.4 A-R229.989 A-R228.782 A-R223.132 A-R2
4SCCA Ent SRF3Calvin HarrisSRF3421:22.582 A-Q11:22.4511:22.582 A-Q11:23.147 A-R11:23.331 A-R1+0.484 A-R1125.6 A-R230.470 A-Q128.809 A-Q123.172 A-Q1
5SCCA Ent SRF3Taylor HarrisSRF3721:22.600 A-Q11:22.5621:22.600 A-Q11:23.165 A-R21:23.356 A-R2+0.389 A-R2126.0 A-R230.483 A-Q128.882 A-Q123.197 A-Q1
6SCCA Ent SRF3Steve FoggSRF3211:22.654 A-Q11:22.6391:22.654 A-Q11:22.987 A-R11:23.327 A-R1+0.482 A-R1126.8 A-R230.469 A-Q128.875 A-Q223.295 A-Q1
7SCCA Ent SRF3Michael NeumeyerSRF391:22.670 A-Q11:22.4251:22.670 A-Q11:23.106 A-R21:23.223 A-R2+0.516 A-R2125.2 A-Q1, A-R130.352 A-Q128.865 A-Q123.208 A-Q1
8SCCA Ent SRF3Maguire DickerhoofSRF3431:22.731 A-R21:22.6301:22.770 A-Q11:22.731 A-R21:23.289 A-R2+1.149 A-R2125.4 A-R230.401 A-Q229.027 A-R223.202 A-Q1
9SCCA Ent SRF3Mike MiserendinoSRF3111:22.873 A-Q11:22.6311:22.873 A-Q11:23.123 A-R11:23.191 A-R2+0.385 A-R2125.6 A-R230.405 A-Q128.907 A-Q223.319 A-Q1
10SCCA Ent SRF3Paul MarinoSRF3141:23.201 A-Q11:22.9121:23.201 A-Q11:24.000 A-R21:24.309 A-R2+0.748 A-R2124.8 A-R230.610 A-Q128.952 A-Q123.350 A-Q1
11SCCA Ent SRF3Tom BurtSRF3451:23.329 A-Q11:23.1481:23.329 A-Q11:24.038 A-R21:24.255 A-R2+0.685 A-R2125.8 A-R230.660 A-Q129.096 A-Q123.392 A-Q1
12SCCA Ent SRF3Christian GuirguisSRF371:23.406 A-Q11:23.1411:23.406 A-Q11:23.851 A-R21:24.207 A-R2+0.780 A-R2125.8 A-Q130.698 A-Q129.023 A-Q123.420 A-Q1
13SCCA Ent SRF3Mark BallengeeSRF31971:23.426 A-Q11:23.3131:23.426 A-Q11:24.389 A-R11:24.792 A-R1+0.755 A-R1124.6 A-Q130.946 A-Q128.844 A-Q123.523 A-Q1
14SCCA Ent SRF3Robert EdmisonSRF3221:23.573 A-Q11:23.2981:23.573 A-Q11:23.817 A-R21:24.148 A-R2+0.755 A-R2125.4 A-R230.699 A-Q128.951 A-Q123.648 A-Q1
15SCCA Ent SRF3Jon McclintockSRF3231:23.601 A-Q11:23.3471:23.601 A-Q11:24.041 A-R11:24.354 A-R1+0.469 A-R1123.5 A-R130.696 A-Q129.148 A-R123.503 A-Q1
16SCCA Ent SRF3John ArscottSRF3811:23.715 A-Q11:23.4421:23.715 A-Q11:24.347 A-R11:24.910 A-R1+0.754 A-R1124.1 A-R130.708 A-Q129.140 A-Q223.594 A-Q1
17SCCA Ent SRF3Paul GoudySRF31271:24.088 A-Q11:23.7731:24.088 A-Q11:24.152 A-R21:24.674 A-R2+0.991 A-R2126.0 A-R231.057 A-Q129.047 A-Q123.669 A-R2
18SCCA Ent SRF3Dave RobsonSRF3471:24.095 A-Q11:23.9081:24.095 A-Q11:26.099 A-R1124.4 A-R130.857 A-Q129.470 A-Q123.581 A-Q1
19SCCA Ent SRF3John DraneasSRF3191:24.456 A-R11:24.1591:24.627 A-Q11:24.456 A-R11:24.748 A-R1+0.594 A-R1124.4 A-R131.028 A-R129.305 A-Q123.826 A-R1
20SCCA Ent SRF3Michael MoshaySRF3161:24.470 A-R21:24.4231:25.236 A-Q11:24.470 A-R21:25.016 A-R2+1.575 A-R2124.1 A-R231.212 A-R229.211 A-R224.000 A-R2
21SCCA Ent SRF3Clayton PowersSRF3701:24.598 A-R21:24.5531:25.358 A-Q21:24.598 A-R21:24.999 A-R2+1.037 A-R2124.4 A-R231.393 A-R229.270 A-R223.890 A-R2
22SCCA Ent SRF3Donald PingreySRF31171:24.651 A-Q11:24.2151:24.651 A-Q11:24.670 A-R21:24.990 A-R1+0.658 A-R1123.7 A-R231.146 A-R129.277 A-Q123.792 A-Q1
23SCCA Ent SRF3Ron TanemuraSRF3561:24.995 A-Q11:24.7821:24.995 A-Q11:25.551 A-R21:26.102 A-R1+1.062 A-R1123.9 A-R231.411 A-Q129.361 A-Q124.010 A-Q1
24SCCA Ent SRF3Gary KnesevitchSRF3631:25.083 A-R21:24.9251:26.681 A-Q21:25.083 A-R21:25.900 A-R2+2.629 A-R2124.4 A-R231.661 A-R229.285 A-R223.979 A-R2

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.

Rule changes between these events

Oregon Region Hoosier SCCA Super Tour @ Portland International Raceway → Oregon 2025 2024-05-11 to 2025-05-10

SRF3 SRF3 Alternator Pulley Update In

#36095 from Robey Clark · Rule change · TB 24-06 (2024-06 Fastrack)

fasterSRF3 alternator pulley minimum weight reduced from 12 oz to 11 oz.

SFR3, GCR section 9.1.8.D.2.H.17, change as follows:
"Alternator Pulley: P/N G902130, or P/N G902130A, or P/N G902131 (six row). 12 11 oz minimum weight."

SRF3 Update Rain Tire Rule and Hoosier Decal Placement

#36436 from Robey Clark · Rule change · TB 24-08 (2024-08 Fastrack)

slowerSRF wet tires: P185/60R13 H20/W2 option removed; P185/65R13 W2 front now required with P205/60R13 W2 rear.

In SRF, GCR section 9.1.8.D.1.X.f, change as follows:
"Wet:
Front – Hoosier P/N 46100 P185/60R13 H20 or W2
Rear – Hoosier P/N 46105 P205/60R13 H20 or W2
Ground clearance is 2.5” with driver as raced when P185/60R13 (H20 or W2) tires are used.
OR
Front – Hoosier P/N 46101 P185/65R13 W2
Rear – Hoosier P/N 46105 P205/60R13 W2

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1. It is forbidden to regroove tires.
2. The use of tire warmers or cooling methods other than natural air convection or conduction is prohibited. The penalty for
violation will be the loss of qualifying times and/or the disqualification of race results.
3. Hoosier SRF/SRF3 Decal Placement:
Four (4) "Hoosier" decals are required in the following locations: Two (2) 11" X 3" decals on the vertical plane of the front nose to
the outside of the cooling opening on each side and two (2) 18" X 5" decals, one on each side of the engine cover or above the
rear wheel openings on the vertical plane. Hoosier decals are available, free of charge, from all Hoosier tire distributors including
SCCA Enterprises."

SRF3 Update to Letter 36619 with new Hoosier Contingency Decal Info

#36624 from Robey Clark · Rule change · TB 24-09 (2024-09 Fastrack)

neutralSRF Hoosier decal requirement reduced from four decals in specific locations to three decals with simpler placement rules.

In SRF, GCR section 9.1.8.D.1.X.f.3, change as follows:
"Four (4) "Hoosier" decals are required in the following locations: Two (2) 11" X 3" decals on the vertical plane of the front nose
to the outside of the cooling opening on each side and two (2) 18" X 5" decals, one on each side of the engine cover or above the
rear wheel openings on the vertical plane. Hoosier decals are available, free of charge, from all Hoosier tire distributors including
SCCA Enterprises Per Hoosier's contingency program, three (3) decals are required to qualify for contingency awards. One (1)
decal must be located on each side of the car and one (1) decal must be visible on the front."

SRF3 Update SRF3 Air Filter Rule

#36681 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)

unclearSRF3 air filter rule removes K&N RC-9160 option, leaving only P/N WM301020 allowed.

In SRF, GCR section 9.1.8.D.2.H.23, change as follows:
"Air Filter: P/N WM301020 or K&N RC-9160"

SRF3 Update SRF Brake Rotor Thickness

#36687 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)

slowerSRF brake rotor minimum thickness increases from 12.20mm to 13.25mm, Wilwood vented rotor P/N 800065.

In SRF, GCR section 9.1.8.D.1.X.g, change as follows:
"Brakes: Hawk Blue 9012 pads P/N 801993 must be used. Wilwood vented rotor P/N 800065 shall must be used as delivered with
no machining of any kind. Minimum thickness 12.20mm (0.481”) 13.25mm (0.522”)."

SRF3 Hoosier Tire Decal Placement

#36739 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)

neutralSRF3 Hoosier logo placement changes from four decals to three decals in different locations.

In SRF, GCR section 9.1.8.D.2.B, change as follows:
"Mandatory identification: "SRF3" near the side car numbers. "Hoosier" logo (4) on both sides front lower outer corners of the
nose and each side of the tail. Three (3) "Hoosier" logos, one (1) on each side of the car and one (1) on the center front of the car."

SRF3 Driver Safety & Comfort

#37966 from Robey Clark · Rule change · TB 25-04 (2025-04 Fastrack)

neutralSRF drivers with disabilities may modify seat and controls for safety and comfort with approval and logbook notation.

In SRF, GCR section 9.1.8.D.1.D, add the following:
"f. 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."

SRF3 Update SADEV transmission specs

#37992 from Club Racing Board · Rule change · TB 25-04 (2025-04 Fastrack)

neutralSRF SADEV-SRF3 6-speed sequential transmission gear ratios wording clarified, effective 2025-04-01.

In SRF, GCR section 9.1.8.D.2.K, change as follows:
"OR
SADEV-SRF3 6-Speed Sequential (beginning from Oct. 4, 2021 onward):
1st 12-36 3.0000 : 1
2nd 15-31 2.0667 : 1
3rd 18-28 1.5556 : 1
4th 22-28 1.2727 : 1
5th 24-26 1.0833 : 1

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6th 25-23 0.9200 : 1
Final Drive Ratio: 15-48 3.20"

Oregon 2025 → Oregon 2026 2025-05-10 to 2026-05-09

SRF3 SRF Rule Updates

#38853 from Robey Clark · Rule change · TB 25-09 (2025-09 Fastrack)

neutralSRF3 brakes restructured: Hawk Blue 801993 pads, Wilwood 800065 rotors only; adds Girling 880358, Wilwood 880357, Tilton 880360 master cylinders.

Effective 9/1/25 in SRF, GCR section 9.1.8.D.1.V.ff, add the following:
"SRF3 Oil Cooler, P/N G480503 may be used as mounted per the GEN3 Assembly Manual. No fan permitted for SRF. HD Oil
Cooler kit P/N G1148500 may be used as mounted per the GEN3 Conversion Manual."
Effective 9/1/25 in SRF, GCR section 9.1.8.D.X.g, change as follows:
"Brakes: Hawk Blue 9012 pads P/N 801993 must be used. Wilwood vented rotor P/N 800065 must be used as delivered with no
machining of any kind. Minimum thickness 13.25mm (0.522”). The Renault Alliance solid front rotors may not be used. Rubber
caliper bushings may be replaced with bronze bushings P/N 1196185 or P/N 1196185. Original caliper pistons may be replaced
with vented caliper piston P/N 1196184; no other modification allowed. Wilwood caliper with bracket universal fit P/N 800038

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may be used as delivered with no modification of any kind. Wilwood knock back spring (2.63 lbs.) P/N 800045 may be used as
delivered with no modification of any kind; maximum of one spring per caliper.
1. Hawk Blue pads P/N 801993 only
2. Wilwood Vented Rotor P/N 800065 only, as delivered, with no machining of any kind. Minimum thickness 13.25mm (0.522")
3. Wilwood universal caliper Kit P/N 1180008 as delivered, caliper only P/N 800038; Wilwood knock back spring P/N 800045
may be used as delivered, with no machining of any kind, and only one spring per caliper
4. Renault caliper rubber bushings may be replaced with bronze bushings P/N 1196185 or P/N 1196185A
5. Renault caliper piston may be replaced with P/N 1196184 vented piston as delivered, with no machining of any kind
6. Girling .750" Master Cylinder P/N 880358 as delivered, with no machining of any kind
7. Wilwood .750" Master Cylinder P/N 880357 as delivered, with no machining of any kind
8. Tilton .750" Master Cylinder P/N 880360 as delivered, with no machining of any kind"

SRF3 Add HD Oil Cooler

#38979 from Robey Clark · Rule change · TB 25-10 (2025-10 Fastrack)

neutralSRF3 adds HD Oil Cooler P/N G1148500 as alternative to standard cooler P/N G480503.

In SRF, GCR section 9.1.8.D.1.V.ff, change as follows:
"SRF3 Oil Cooler, P/N G480503 or HD Oil Cooler P/N G1148500 may be used as mounted per the GEN3 Assembly Manual. No fan
permitted for SRF. HD Oil Cooler kit P/N G1148500 may be used as mounted per the GEN3 Conversion Manual."

SRF3 SRF3 Spark Plugs

#39899 from Robey Clark · Rule change · TB 26-03 (2026-03 Fastrack)

neutralSRF3 spark plugs restricted to NGK LTR7IX-11 P/N G301041 only, washers and sealing rings prohibited.

In SRF, GCR section 9.1.8.D.2.H.18, add the following:
"Spark Plugs: P/N G301041 ONLY NGK LTR7IX-11 / Washers or sealing rings are not allowed for any purpose."

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