Autocross competitors in Nashville know that tenths of a second often hinge on how well a car rotates through tight corners. The city’s varied venues—from the expansive lot at Nashville Superspeedway to the tighter confines of smaller municipal courses—demand a setup that can adapt quickly. One of the most effective upgrades for improving cornering grip and consistency is a set of camber plates. These simple yet precise components let you dial in negative camber, reducing understeer and evening out tire temperatures. In this article we’ll cover what camber plates are, how they work, what to look for when buying them in Music City, and how to get the most out of your installation.

What Are Camber Plates?

Camber plates replace your vehicle’s factory strut top mounts with adjustable units that change the angle of the wheel relative to the vertical axis. On a typical MacPherson strut suspension, the top mount is fixed; with a camber plate, you can slide the top of the strut inboard or outboard, thereby altering the camber angle. This adjustment is critical because it directly affects how the tire’s contact patch interacts with the pavement during cornering.

Most camber plates also incorporate a spherical bearing or polyurethane bushing in place of the stock rubber isolator. This substitution reduces deflection under load, keeping your alignment more consistent as you transition through turns and braking zones. For autocross, where every steering input matters, that added precision can translate to quicker slaloms and tighter sweepers.

How Camber Plates Differ from Other Alignment Devices

While some vehicles offer factory camber bolts or eccentric bushings, these often have limited adjustment range and can slip over time. Camber plates provide a larger window of adjustment—typically from -1° to -4° or more—and maintain that setting under high lateral forces. They are also compatible with aftermarket coilovers and upgraded springs, making them a versatile choice for drivers who plan to continue modifying their suspension.

Why Camber Matters in Autocross

Autocross is a low-speed, high-cornering discipline where maximum lateral grip is king. Street tires, when driven hard, generate significant body roll, which causes the tire’s contact patch to roll onto its shoulder. Without enough negative camber, the inside edge of the tire lifts off the pavement, reducing grip and accelerating outer-edge wear.

By adding -2° to -3° of negative camber, you keep the entire tread pattern flat against the road during a turn. This increases the contact patch area, allowing the tire to generate more lateral force. The result: higher cornering speeds, reduced understeer, and more predictable breakaway characteristics. The effect is especially noticeable on Nashville’s concrete lots, where grip levels are high but surface transitions can upset a poorly aligned car.

Tire Temperature and Wear

Even tire wear is another advantage of proper camber settings. Without enough negative camber, the outer shoulder of the front tires will overheat and wear rapidly. With too much camber, the inner edge suffers. The goal is to achieve a temperature profile across the tire that is nearly flat after a run. A pyrometer reading after your heat will tell you if you need more or less camber.

Camber plates allow you to make those adjustments quickly between heats.

Types of Camber Plates

Camber plates come in two broad categories: fixed-camber plates and adjustable plates. Within adjustable plates, there are further distinctions in how the adjustment works and what materials are used.

Fixed vs. Adjustable

  • Fixed camber plates: These have a predetermined offset that sets the camber at a single value. They are less expensive and simpler, but offer no fine-tuning. Suitable for drivers who only run one type of course and have already optimized their alignment.
  • Adjustable camber plates: These allow you to change camber angle by loosening fasteners, sliding the plate, and re-tightening. Some designs use a slot-and-bolt system; others use eccentric cams. The best units offer tool-free or single-bolt adjustment, making it easy to switch between street and autocross settings.

Plate Designs: MacPherson Strut vs. Double Wishbone

Most cars in the autocross paddock—like Mazda Miatas, Subaru WRX/STI, BMW 3 Series, and Ford Mustangs—use MacPherson struts. Camber plates for these directly replace the top mount. For vehicles with double-wishbone front suspensions (e.g., some older Hondas and Acuras), camber adjustment is usually achieved with aftermarket upper control arms or eccentric bushings, but camber plates may still be used on the rear if the suspension design permits.

Bearing Types

  • Spherical bearings: Offer the lowest friction and most precise articulation. They transmit road noise and vibration more directly to the chassis, but that’s a typical trade-off for performance.
  • Polyurethane bushings: Quieter and more street-friendly, but they can bind under high loads and may not hold alignment as consistently as a spherical bearing.
  • Hybrid designs: Some manufacturers use a spherical bearing with a dust boot to prolong life. For a dedicated autocross car, spherical bearings are the preferred choice.

Benefits of Camber Plates in Autocross

We touched on several advantages earlier, but it’s worth listing them in detail so you can weigh the investment against your driving goals.

  • Enhanced cornering grip: Negative camber keeps the tire tread flat on the road, increasing lateral force capacity. This is the primary reason autocrossers install camber plates.
  • Reduced understeer: By adding negative camber to the front, you can dial out the push that plagues many street-tuned cars. This allows the car to rotate better in tight elements like slaloms and hairpins.
  • Improved tire wear: Proper camber ensures the tire wears evenly across the tread. Over a season, you’ll get more runs out of a set of tires, saving money and maintaining consistent grip.
  • Adjustability: You can set more aggressive camber for race day and then remove it for street driving, protecting your tire shoulders during daily commutes.
  • Reduced body roll: Because camber plates also improve strut alignment and reduce deflection, the car feels more planted during weight transfers. This can allow you to run softer springs for better daily comfort without sacrificing cornering performance.
  • Compatibility with coilovers: Most coilover manufacturers design their struts to work with camber plates. Combining adjustable plates with adjustable coilovers gives you fine control over the entire suspension geometry.

Choosing the Right Camber Plates in Nashville

Nashville has a thriving automotive aftermarket scene, with several shops that specialize in performance alignment and suspension work. When shopping for camber plates, start by identifying your vehicle and your typical autocross course. A car that runs mainly at the Nashville Superspeedway lot (larger, higher-speed elements) may benefit from a slightly different setting than one that runs at smaller, more technical venues like the old Opry Mills lot or the Fairgrounds Speedway parking area.

Vehicle Compatibility

Popular platforms in the Nashville region include:

  • Mazda Miata (NA, NB, NC, ND): Many options from Flyin’ Miata, Goodwin Racing, and Vorshlag. Miatas benefit greatly from camber plates because of their soft factory suspension.
  • Subaru WRX/STI: Brands like RCE, Whiteline, and Cusco offer plates that handle the car’s weight well.
  • BMW 3 Series (E36, E46, E90): Vorshlag and Ground Control make excellent plates for these chassis.
  • Ford Mustang (S550, S197): Steeda, BMR, and Vorshlag produce plates that work with the MacPherson strut front end.
  • Chevrolet Corvette (C5, C6, C7): These use a double-wishbone front, so camber adjustment comes from shims or eccentric bolts, but rear camber plates are available for some models.

Where to Buy Locally

While online ordering is convenient, there’s value in visiting a local performance shop that can advise on fitment and even install the parts. Consider:

  • Eastside Automotive: A well-known independent shop that handles performance suspension work and alignments.
  • Stone’s Endurance Performance: Specializes in track and autocross setups for a variety of makes.
  • Nissan of Cool Springs Performance Parts: Great for Nissan/Infiniti enthusiasts, but also stocks some mainstream brands.
  • Music City Autocross Club members: Joining the local Music City Autocross Facebook group is one of the best ways to get recommendations from drivers who have already tested different plates on area courses.

Online Retailers with Good Return Policies

If you order online, stick with reputable retailers like Tire Rack, Summit Racing, or directly from manufacturers such as Ground Control and Vorshlag. These companies have solid tech support and can help you choose the right offset and bearing type for your application.

Installation Tips and Considerations

Installing camber plates is a moderate-level DIY project, but it requires attention to detail. The process varies by vehicle, but the general steps are similar.

Step-by-Step Overview

  • Remove the wheel and strut assembly from the car. On most MacPherson strut vehicles, this involves unbolting the lower strut from the steering knuckle and the top strut nuts inside the engine bay.
  • Disassemble the original top mount: remove the center nut, retain the spring compressor (do not remove it until the new plate is installed).
  • Install the new camber plate per the manufacturer’s instructions. Pay attention to orientation—some plates have a direction for left/right.
  • Reinstall the strut assembly into the car. Use a torque wrench for all fasteners, especially the top nut and the lower strut bolt.
  • Set the camber to your desired initial value—typically -2° to -3° for autocross—before taking the car for a professional alignment.

Tools Needed

  • Spring compressors (critical for safety)
  • Socket set, wrenches, torque wrench
  • Jack and jack stands or a lift
  • Pry bar or alignment tool (optional for setting camber)
  • Penetrating oil for rusted bolts

Professional Alignment After Installation

Even if you set the camber roughly, you must get a full four-wheel alignment afterward. A shop will measure camber, caster, and toe on all four corners. Toe is extremely sensitive to camber changes—adding negative camber often introduces toe-out, which can make the car twitchy and eat tires. A good alignment will include a “corner balance” if you have adjustable spring perches, but at minimum it should set camber to your target, zero the toe, and check caster.

Common Pitfalls

  • Over-tightening the top nut: Spherical bearings need to pivot freely. Over-torquing can bind the bearing, causing premature wear and noise.
  • Not checking strut clearance: Some camber plates may cause the strut to contact the strut tower or inner fender at full lock. Test clearance before driving.
  • Skipping the alignment: Installing camber plates and then driving without an alignment will result in poor handling and rapid tire wear.
  • Forgetting to tighten the locking mechanism: Many adjustable plates have set screws or locking nuts. If these loosen, the camber can shift mid-run.

Advanced Tuning: Optimizing Camber for Nashville Courses

Once you have the plates installed, you can experiment with settings. Start with the manufacturer’s recommendation for your tire compound (typically -2.5° for 200TW tires). Over the course of a season, try adding or removing half a degree and monitor tire temps and lap times.

Front vs Rear Camber

Most of the camber benefit comes from the front, where the car bears the weight during braking and turn-in. Rear camber is less critical but can help with stability. If your car has a solid rear axle or a multi-link rear, adding -1° to -1.5° of negative camber can reduce oversteer on exit. For front-wheel-drive cars, more front camber is essential to counteract understeer.

Adjusting for Course Type

If you know you’re going to a very tight, low-speed lot (like some of the smaller lots around Nashville), you might want a bit more negative camber (e.g., -3°) to help the car bite into corners. On a larger, faster lot like Nashville Superspeedway’s infield, -2° to -2.5° might be more appropriate to maintain straight-line braking stability.

Maintenance and Longevity

Camber plates are exposed to dirt, moisture, and road salt. Spherical bearings need periodic cleaning and lubrication. Many plates have grease fittings (Zerk fittings) to extend bearing life. Check the bolts and locking mechanisms before each event—vibration can cause them to loosen.

If you drive your car daily, consider removable camber plates or a design that allows easy switching between street and race settings. Plates with an integrated “street” slot let you set a less aggressive alignment without removing the plate entirely.

Conclusion

Camber plates are one of the most cost-effective upgrades for improving autocross performance in Nashville. They give you the ability to optimize your tire’s contact patch, reduce understeer, and extend tire life. Whether you’re a novice at the SCCA solo events or a seasoned regular at local pro-solos, investing in quality camber plates and a proper alignment will pay dividends in both lap times and driving enjoyment. Pair them with a good set of coilovers, a thorough alignment, and active tire management, and your car will be ready to tackle anything Nashville’s autocross venues throw at you.