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For track enthusiasts looking to shave some decimals off their lap times, racing seats are a great aftermarket performance upgrade to consider.
Racing seats differ from car stock seats in several key areas; they're designed to provide better lateral support, reduce weight, and enhance the overall driving experience through improved ergonomics, materials, and safety features.
However, these benefits are only possible if the seat has been sized and fitted to both the driver and the vehicle. Otherwise, an ill-fitting seat can lead to discomfort, lack of control, and a higher risk of injury in the event of a crash.
To ensure you end up with the right seats for your measurements and vehicle, this article covers everything you need to know about racing seat sizing.
Measuring for the Perfect Fit
To find the right size for your racing seat, start with two measurements: your “seated hip width” and “shoulder height.”
Here’s how to accurately measure each:
Seated Hip Width:
- Step 1: Sit squarely on a flat surface, like a table or workbench.
- Step 2: Position two rectangular objects, like boxes or blocks, against each side of your hips. The closeness of these objects will influence the final fit of your seat, so adjust them according to your preferred snugness.
- Step 3: Stand up and then place a carpenter's square against the edge of the table and the side of each box or block to guarantee the measurements are straight and true.
- Step 4: Measure the distance between the inside edges of the two boxes or blocks using a metal tape measure. If, for instance, the distance measures 14 3/4 inches, you would generally be advised to select a seat that is 15 inches wide.
Shoulder Height:
- Step 1: Remain seated on the table or workbench.
- Step 2: Keep your back straight and maintain an upright posture.
- Step 3: With a metal tape measure and someone's help, record the distance from your seating surface to the top of your shoulder. This measurement helps ensure the racing seat will support your upper body correctly.
These measurements are central in selecting a racing seat that fits your body shape and size, improving both your comfort and safety while driving. Incorrect sizing can lead to discomfort and a lack of control, so take these measurements carefully to ensure the best possible fit.
Formula for Comfort
Comfort might not be the first thing on a driver's mind, but it plays an important role in maintaining focus and control during intense races. The formula for comfort in racing seats involves more than just soft materials; it includes a blend of ergonomics, material choice, and adjustability to suit individual needs.
Ergonomics is key in racing seat design. A seat that mirrors the natural curves of the body can greatly reduce driver fatigue and increase concentration. Look for features like contoured backrests, adjustable lumbar support, and side bolsters that provide supportive seating without restricting movement.
Material choice of the racing seat cover also impacts comfort. Breathable fabrics like mesh or perforated leather can keep you cool under pressure, while memory foam or high-density padding supports your body without compromising the seat's firmness.
Finally, adjustability is also important. Being able to tweak seat angles, backrest positions, and headrest heights allows for a personalized fit that can enhance comfort, especially during long periods behind the wheel.
Still unsure if racing seats are right for you? Check out our detailed guide covering five reasons you should purchase racings seats for your ride.
Different Seat Dimensions
- Seat Width and Body Type Compatibility: The width of the seat (usually between 11”-26”) is important for ensuring snug lateral support without restricting movement. Select a seat width that complements your seated hip width, allowing for optimal control and comfort without the seat feeling too tight or overly spacious.
- Backrest Height: The height of the backrest contributes to upper body support and safety. It should extend high enough to support your entire back and shoulders, which is central for both comfort and protection, especially during high-speed impacts. Check out our mix of low and high-back racing seats, which range from 25” to 35” high.
- Seat Depth and Leg Comfort: Adequate seat depth is needed for lower body comfort and circulation. Too shallow, and you'll find yourself shifting for better thigh support; too deep, and you'll struggle with pedal reach and leg fatigue.
- Vehicle Interior Space: Before choosing a seat, consider your vehicle’s cabin space. Larger seats may offer more comfort but can be challenging to fit in compact cockpits. Ensure the seat dimensions are compatible with your vehicle's interior, allowing for enough clearance and mounting capability, including height.
By considering these dimensions, you can ensure a racing seat that not only fits you perfectly but also complements your vehicle’s interior, enhancing both safety and the driving experience.
Can You Get Fitted for a Race Seat?
For drivers seeking the ultimate fit, consider getting fitted for a custom racing seat. This approach ensures that your seat precisely conforms to your body's shape and your vehicle's interior, maximizing both safety and comfort.
During a professional fitting session, experts will evaluate your body measurements and assess your seating position, ensuring that the seat provides optimal support and alignment with the vehicle's controls and sight lines.
Custom fittings are typically conducted at specialized racing equipment shops or directly with seat manufacturers. The process involves detailed measurements of your body and the vehicle's cockpit. You may be seated in various mock-up seats or use adjustable rigs to find the perfect alignment, taking into account factors such as leg reach, steering wheel distance, and overall ergonomics.
While custom racing seats are an investment, they offer unmatched benefits in terms of comfort, control, and safety. They are especially beneficial for drivers with specific postural needs or those who have struggled to find a standard seat that fits well.
JEGS: For All Your Automotive Needs
And there you have it, a complete rundown on car racing seat sizing. By properly measuring your seated hip width and shoulder height and taking into account your own specific comfort and performance needs, you’re sure to choose the right seat for your vehicle.
Consider JEGS for all your automotive needs, a leading supplier of performance auto parts, including racing seats. Complete your order online and have your products sent straight to your garage.
Still have questions? Contact our team today.
2 responses to “Racing Seat Sizing – Matching Your Measurements & Vehicle”
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Chris, if you need a 22 inch hip width, you are going to be looking at a wide seat in most racing seat lineups. Seat sizing is based on the inside width at the hips, so you want to make sure the seat you choose lists a hip width at or slightly above that measurement to stay comfortable, especially if you are in the seat for longer periods. Many standard seats are closer to 18 to 20 inches, so you will want to focus on wide or XL versions. Brands like Kirkey offer their aluminum seat series in wider sizes, and companies like Procar by Scat have wide fit seats in their performance series that are designed for larger drivers while still providing support. The key is also making sure the seat will physically fit in your vehicle, since wider seats can run into clearance issues with the door panels or transmission tunnel. If you are planning to use harnesses, you will also want to confirm the seat has proper openings and support for that setup. If you would like help matching a seat to both your measurements and your vehicle, give us a call at 1-800-345-4545 and speak with a Tech Specialist and we will be glad to help.
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