//CIRCUIT GUIDE//thunderhill
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LENGTH: 3.00 Miles (East Course) / 5.00 Miles Combined|TURNS: 15 Complex Corners|LAP RECORD: 1:36.40 (NASA 25 Hours of Thunderhill)|SOUND: 103dB
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SANCTIONED ROAD COURSEWillows, California
Thunderhill Raceway Park
Home of the legendary 25 Hours of Thunderhill. Famous for sweeping elevation, the blind downhill launch of the Cyclone, and high-speed multi-car passing.
COURSE LENGTH3.00 Miles (East Course) / 5.00 Miles Combined
TURNS15 Turns
LAP RECORD1:36.40 (NASA 25 Hours of Thunderhill)
SOUND LIMIT103dB
TRK-GUIDE
Reference Benchmark (Vehicle & Tire Dependent - Always Adjust for Conditions & Run Group)Turn-by-Turn Racing Line & Braking Zones
Turn 14th Gear · 96 MPH
Fast Entry Left
High speed approach off front straight into blind left apex.
Turn 52nd/3rd Gear · 54 MPH
The Cyclone
Steep uphill climb followed by blind crest plunge to the right.
Turn 84th Gear · 112 MPH
Fast High-Speed Left
Flat-out commitment sweeper carrying momentum to back infield.
Turn 14-153rd Gear · 72 MPH
Final Complex
Double apex right onto front straight toward timing tower.
Verified In-Car Onboards at Thunderhill Raceway Park
154 SESSIONSClick any session to launch high-bitrate onboard video with AiM/Garmin HUD overlay in our broadcast player modal.
VERIFIED ONBOARD@boomboomtisk
OnGrid
GoPro 4K Cockpit POV + GPS Data
18:25
JUST THE DRIVES: THUNDERHILL WEST CCW 1:31.687 Lap B16A2 EK Honda Civic Hatchback + RAW SESSIONS
@boomboomtisk·Honda Civic (K-Series Club Racing)
Watch in ModalYouTube
VERIFIED ONBOARD@Alex Tanaka - AVOENG.
Independent
GoPro 4K Cockpit POV + GPS Data
7:10
Thunderhill West | GLA 45 vs ND1/ND2 Miata vs F84 M4 | Comparison Laps
@Alex Tanaka - AVOENG.·BMW M3 / M4
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VERIFIED ONBOARD@MaxDrives
Independent
GoPro 4K Cockpit POV + GPS Data
1:32
BMW E36 1:22.409 LAP THUNDERHILL WEST
@MaxDrives·BMW M3 / M4
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VERIFIED ONBOARD@boomboomtisk
OnGrid
GoPro 4K Cockpit POV + GPS Data
44:00
HONDA FIT FRIENDLY FIRE | Thunderhill WEST FEST with On Grid Track
@boomboomtisk·Grassroots Production Track Build
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VERIFIED ONBOARD@Alex Tanaka - AVOENG.
Independent
GoPro 4K Cockpit POV + GPS Data
1:39
Thunderhill West 1:20.6 | A90 GR Supra
@Alex Tanaka - AVOENG.·Toyota GR Supra (A90)
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VERIFIED ONBOARD@MaxDrives
Independent
GoPro 4K Cockpit POV + GPS Data
1:35
E36 M3 1:23.95 LAP THUNDERHILL WEST
@MaxDrives·BMW M3 / M4
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VERIFIED ONBOARD@Zhongyu Lin
Turn
GoPro 4K Cockpit POV + GPS Data
1:39
BMW G87 M2 Onboard | Thunderhill West CCW | 1:31.82 Hot Lap @turn8racing.
@Zhongyu Lin·BMW M2 (G87 / F87)
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VERIFIED ONBOARD@boomboomtisk
Independent
GoPro 4K Cockpit POV + GPS Data
23:53
Long-Term Project EG Civic: We’ve put so much WORK into this, will it be worth it? | TRACK PREP
@boomboomtisk·Honda Civic (K-Series Club Racing)
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VERIFIED ONBOARD@Cody Bulkley
LightSpeed
GoPro 4K Cockpit POV + GPS Data
2:04
Corvette C6 Z06 Thunderhill East 1:48.4 LightSpeed TTA Record
@Cody Bulkley·Chevrolet Corvette C6 Z06
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VERIFIED ONBOARD@Jubbal & Cars
Independent
GoPro 4K Cockpit POV + GPS Data
19:00
2025 BMW M4 Competition xDrive Track Review | 700 WHP is Scary
@Jubbal & Cars·Porsche 911 GT3 / GT3 RS
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VERIFIED ONBOARD@boomboomtisk
OnGrid
GoPro 4K Cockpit POV + GPS Data
57:45
All the Hondas are FLYING OFF at THUNDERHILL West | The Rotten Egg’s FIRST TRACK DAY
@boomboomtisk·Honda Civic (K-Series Club Racing)
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VERIFIED ONBOARD@Will Lorne
Independent
GoPro 4K Cockpit POV + GPS Data
4:15
GR86 vs S2000 CR: Chasing sub-2 at Thunderhill East
@Will Lorne·Honda S2000
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