Frequently Asked Questions

Want to try Autocross for the first time? Don’t know where to start? Or are you a seasoned racer looking for the latest rule book or event prices?

Please see below for our list of frequently asked questions. If you still can’t find what you are looking for, head over to our Facebook group!

Club Membership

What are the benefits of membership?

Annual WOSCA memberships come with a number of benefits including discounted registration prices for each of our events, access to our annual Holiday Party and Daytona 500 Party, and inclusion in our annual safety draw (rebates for safety equipment).

How much does a membership cost?

Memberships are $40 per calendar year, and can be purchased at our monthly meetings (1st non-holiday Wednesday of every month at the Wortley Roadhouse) or at any of our events. Memberships are now also available online.

Club Events

Where is the Centralia Airport?

Centralia/James T. Field Memorial Aerodrome is located just west of Centralia ON. From London, Follow Highway 4 North up to Huron Park Rd in Centralia (There is a Malibu Restaurant at this intersection) Turn left. Head down the road unitl it ends, turn right on Concession Rd 2, turn left on Canada Ave. Address is 403 Canada Ave, Huron Park, ON N0M 1Y0. Gate entrance #2, the main entrance for New United Goderich.

How much are registration fees?

Event fees are $65 non-members *registered online* / $70 non-members *register at the track*

$50 members *registered online* / $55 members *register at the track*,  your membership basically pays for itself

Are food/gas/bathrooms available on site?

A Porta-Potty will be on site, and we may have a pizza run going for lunch. There is a variety store in Centralia, then a few options available in Exeter, north of the airport.

Can I fly a camera drone at the event?


Please feel free to use any GoPro or other action-style cams that can be mounted to your helmet/car. Regulations by our governing body do not permit camera drones at our events at this time.

What should I bring with me to an event?

Always bring sunscreen, sunglasses, water, snacks, umbrella, appropriate rain gear, tire pressure gauge, air pump, an extra litre of oil, and your drivers licence. We also recommend you bring your own Snell 2015 or better helmet, but we do usually have a few spare loaners if you don’t have your own.

A few nice to haves include a GoPro or other camera and a pencil and paper to take notes and write down advice.

Many dedicated competitors will bring their magnetic numbers, floor jack, separate tires, torque wrench, spare nuts/bolts, and brake fluid.

Rules and Regulations

2020 Rule Book

The draft 2020 rule book is available here. (PDF)

Other helpful quick reference sheets:

2019 Helmet Regulations

You will need to present your helmet to the registration tent to confirm it meets the current year standards for SCCA. You will receive a sticker that is valid for the rest of the calendar year for all WOSCA events. You will need to re-tech your helmet and get a new sticker from us every year.

Your helmet must have one of these labels visible. The DOT standard (FMVSS 218) alone is not sufficient!

2019 PAX

First Timers

What is autocross?

Autocross is a low-cost grassroots motorsport discipline that allows almost anyone to enjoy the thrill of automotive competition in a safe, controlled, and legal environment.

An Autoslalom event consists of competitors driving through a ‘race course’ laid out using pylons on a large parking lot or other paved surfaces. Because the vehicles race independently of each other, at no time can there be contact with another competitor, thus reducing the risks considerably, and allowing the drivers to concentrate on threshold braking and precision cornering. Each run is electronically timed, and the fastest driver in each class is the winner. Click here for a great read on what Autocross is.

What kind of car do I need to have?

Almost any driver can participate in almost any car, no matter how old, the make, the model, or the modifications that have been done to the vehicle.  As long as the car meets certain safety standards (i.e. not dropping fluids, secured battery, wider than it is tall) autocross has a class for your car.

Each vehicle is handicapped based on several factors. For example, a Honda S2000 is not in the same class as a Toyota Camry for. Modifications will also place vehicles in a higher class with adjusted PAX values.

If you have questions about your class, head over to our Facebook group and ask for help classing your vehicle.

Can I just come and watch?

Absolutely! There are no fees to spectate at our events. Feel free to ask questions, and don’t be surprised if someone offers you a ride-along! We do ask that you sign a waiver though.

What class is my car in?

SCCA® Solo® has many categories divided into classes for vehicles. Those
categories include:


This category includes mass-produced, common vehicles that may be “daily drivers” (cars used for normal, everyday driving). Stock Category cars compete in their “factory” configuration with a minimal number of allowances (not requirements).

Street Touring®

This class is a fairly new class and is geared towards cars with common bolt-on modifications. Things like cold-air intakes, headers, lowering springs, etc.

Street Prepared

This is the original Solo® “street” class, sometimes called a “bolt-on” class. Any fuel and ignition system is allowed along with any suspension springs and shocks/struts as long as they are fitted into their original location. Things like turbo/superchargers must remain the same. There is no limit on wheel size or DOT tire sizes.

Street Modified

This is the top tier of the “street” classes. This class allows engine swaps as long as the engine is made by the same manufacturer as the car. You may also add turbo/superchargers, camshaft upgrades, and any suspension upgrades as long as it uses the factory attachment points.


This class is generally for non-street cars. Things like gutted interiors and racing slicks are a big give away. Most things are allowed in this class and are based on weight more than anything. Modified – these are usually special built competition vehicles and most of them resemble an open-wheel Indy car or a closed-wheel LeMans sports racer. DM and EM cars may have started life on the streets, but just about any engine, drive train, or suspension is permitted. Supercharged rotary engines and V-8 engines are seen in 1700-pound EM machines and powerful 4-cylinders are common in 1300-pound DM lightweights.


Do I need special competition tires?

No, any tires can be used. However, 200 tread wear summer tires are more competitive, with R compound race tires typically the most sticky. Be aware, that today’s quality summer tires are often better than the R compound tires we used 10 years ago. Tire technology has advanced considerably over the years and we’re all better for it.

Do I need a helmet?

Yes, you need a proper fitting helmet, however, WOSCA does provide loaner helmets at our events if you do not have one.

Remember, all helmets you can buy in Ontario will have the DOT certification, but not all DOT helmets meet our required Snell standards. Please see the section above on current-year helmet regulations before buying one!

How do I navigate the course?

At the beginning of every event, we do either a course walk or slow speed course drive immediately following the mandatory driver’s meeting. This allows competitors to familiarize themselves with the course.

We encourage drivers to arrive early enough to walk the course prior to the driver’s meeting. Feel free to take notes. A typical course walk takes 10 minutes for a parking lot course, and over 30 minutes for an airport based course. Ask to join experienced drivers to understand the nuances of a given course

After the driver’s meeting, we do also have a quick meeting with any rookies/first timers to show you what the different pylon configurations mean, and cover a few extra safety details. Please ask questions if you have them!

If I'm having trouble navigating, or could use some coaching - is there someone to help me?

Our events are full of seasoned racers and instructors. We are typically wearing WOSCA shirts and some of us have magnetic numbers on our cars. We also usually answer when you shout “can someone help me?”

When asked nicely, we’ve been known to sit in for a run as a navigator (just don’t ask Bruce to navigate) or give you some tips to improve your technique. Check in at the timing tent to see who’s available to give you a hand!

We were all rookies once too!

How does scoring work?

All cars are classed according to their factory specs, and how modified your car is. Each class has what’s called a “PAX” factor which is a multiplier of less than 100% which is applied to your raw time based on what class you’re in. A fast driver in a slow car with a low PAX may not be the fastest in raw time but could win the event after everyone’s times are factored for their class. Modifying your car (can) but doesn’t necessarily make it faster in autocross! Some of our most competitive cars are completely stock!

How will this make me a better driver?

Competing in autocross can help you hone your driving skills. It’s a (relatively) lower speed sport in the world of Motorsports that values agility and technique. Autocross can help you improve your vision (looking farther ahead), learn how to keep your car balanced and controlled in a skid, and help you master precision braking. All of these skills transfer on to the roads when you find yourself in icy conditions, or having to make a quick maneuver to avoid an accident!

About the Club

Who are the club executives?

Our Board of Directors is as follows:

  • President: Mike
  • Vice President: Derek
  • Secretary: Reg
  • Treasurer: Bruce
  • Solo Director: Eric P.
  • Race Director: Doug
  • Drag Racing Director: Eric M.
  • Publicity Director: Matt

What happens at Club meetings?

The club meets the 1st non-holiday Wednesday of every month at the Wortley Roadhouse in London, Ontario. Our club meetings are where we discuss club business, plan events, and share information about things like provincial and national events. While there is always business to attend to, meetings are a fun and social event. Many members grab dinner from the restaurant, and once we’ve concluded the meeting we talk about our projects, give advice to rookies, and hang out. Non-members, rookies, or folks just looking to learn more about autocross are always welcome to attend!