Thunderhill Raceway Park

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1 Track Summary
2 Upcoming Events
3 Local Hotels
4 Track Map
5 Weather
6 Introduction
7 Track Guide
8 GPS Track Map and Vehicle Dynamics
9 Typical Lap Times
10 Videos

Track Summary

Web Site: http://www.thunderhill.com/

Questions forum: Driving Thunderhill Park Raceway forum

Address: 5250 State Highway 162, Willows, CA 95988

Upcoming Events

MyTrackSchedule.com Thunderhill Raceway Park Track Schedule
MotorsportReg.com Calendar
National Driving Events Calendar

• PCA - Rocky Mountain @ RMR Membership (Oct 1 - Dec 31)

• Great Lakes Lotus Club @ Other - See Details (Jan 1 - Dec 31)

• BMWCCA - Missouri Valley Chapter @ Motorsport Park Hastings (Apr 26 - 4)

• BMWCCA - Windy City Chapter @ Road America (Apr 26 - 4)

• ProCup Kart Racing League @ Andretti Indoor Karting (Jun 1 - Aug 3)

• BMWCCA - New York Chapter @ Watkins Glen Int'l (Jun 16 - 6)

• BMWCCA - Windy City Chapter @ Gingerman Raceway (Jun 28 - 6)

• PCA - Northern New Jersey - Drivers Education @ Mosport (Jul 25 - 27)

• SCCA - Northwest Region - Time Trials @ Bremerton Motorsports Park (Jul 25 - 26)

• PCA - Nord Stern @ Brainerd Int'l Raceway (Jul 25 - 27)

Local Hotels

Support Trackpedia by booking your hotel at the following links!

Track Map

Weather

• Current Conditions: Clear in Willows, CA (as of 10:53 AM 7/24/2008)

Current conditions (as of 10:53 AM)

Clear. 81°F (Feels like 81). Humidity: 42% Winds: 3 mph W.
All times shown are local to Willows, CA.
Detailed ten-day forecast Hourly weather forecast Weather maps Weather averages

• Forecast for Thursday, July 24, 2008 for Willows, CA

Today: Clear. Lo: 61°F. Hi: 99°F. Chance of precipitation: 0%
Tomorrow: Clear. Lo: 63°F. Hi: 99°F. Chance of precipitation: 0%
Saturday: Clear. Lo: 63°F. Hi: 98°F. Chance of precipitation: 0%
Sunday: Clear. Lo: 62°F. Hi: 95°F. Chance of precipitation: 0%
Monday: Clear. Lo: 61°F. Hi: 95°F. Chance of precipitation: 0%

More information at MSN Weather
(Powered by Foreca)

Introduction

This is one of the most popular club racing track in northern California. The track has grown in popularity over the last several years and is host to many NASA and SCCA club series racing. The 25 Hour of Thunderhill is held there and is the longest endurance road race in the world.

The track is configurable and event organizers can choose from several configurations to run. The most typical configuration is counter-clockwise without the T5 bypass. The track was designed to run both directions, so driving clockwise is referred to as "Llihrednuht" or "Thunderhill backwards".

Track Guide

The follow sections describe the turns or series of turns on the race track in a step by step detail from various people who have driven the track

External Links

Motorcycle turn by turn guide author was driving a Yamaha R6
Shelby Club turn by turn guide
Hank Watts' turn by turn guide
thenobot's Novice Notes

GPS Track Map and Vehicle Dynamics

G2X Trackmap: Thunderhill Counter Clockwise

Typical Lap Times

D Sports Racer race record, John Hill, Stohr WF1, 03/18/2006	1:42.071, 2.866 miles, 16 turns CCW w/o bypass
Spec Miata	2:08.235
Spec Racer Ford	2:02.491
Porsche 944 spec	2:12.9
Porsche 997RSR with professional driver	1:45
Porsche 997 GT3 RS with prof driver	2:02
Stock Acura NSX w/street tires driven by Kenji Morishige	2:09 with bypass, 2:11 w/o bypass
Prima Racing 1992 Civic EG driven by Kenji Morishige	2:09.xx 2005 NASA Race Weekend
Prima Racing 1999 Civic Si driven by Andrie Hartanto	2:02.869 2005 NASA Race Weekend
Shed Racing 1983 VW Rabbit GTI Cup driven by Ron Swett	2:13.567 2005 NASA Race Weekend
2003 Mitsubishi Evo 8 #42 NASA TTB driven by Yang Tang	2:02.254 2007 NASA Track record w/ bypass
Spec E30, Donny Edwards	2:11.155 3/9/2008 NASA Race w/bypass

Videos

Video of Thunderhill in a Spec Ford

Video of Thunderhill in a racecar

Video of Thunderhill Clockwise with Bypass in a BMW M3

Video of Thunderhill, Counter-Clockwise with Bypass, NASA GTI Cup class lap record