Guide: Mustang Weight Reduction & Chassis Rigidity

Mustang Weight Reduction

With all the accolades the Mustang has achieved, it has had to overcome one key flaw in its fifty-year history: weight. Weight has been a crucial factor and inhibtor to allow Mustang owners to achieve perfect weight distribution from front to rear. Unfortunately, the Mustang has gained a lot of weight over the years due to regulations for safety and added creature comforts. These can inhibit a balance of form and function for enthusiasts to have the best performance Mustang possible.

While reducing weight out of your Mustang is essential, it is just as important to have supporting components such as rotors, wheels, and body panels that are as light as possible to enhance the power to weight ratio. Contrasting this is the ability to offset the weight loss by ensuring your Mustang has proper chassis rigidity. Combined, these will provide a mix of performance to benefit your Mustang in all key areas and characteristics. Weight is always the enemy of performance at every level, even if you're the type of enthusiast who uses their pony for a weekend cruise or canyon carving session.

For those of us who track our Mustangs, we know that weight is not our ally. At Steeda, we know that weight is the enemy of performance, and for that reason, we make our cars lightweight where we can. These upgrades can dramatically change the handling and performance of these cars, especially when paired with each other. With lightweight panels, wheels, and other parts, you can cut large amounts of weight and ultimately can shave time off your runs regardless of the type of racing you compete in.

Weight Reduction Chassis Rigidity

Steeda Mustang lightweight racing wheels

Keys To Weight Reduction

Within the past fifteen years, the Mustang has gained significant weight due to federal automobile regulations, safety restrictions, and creature comfort items. Now that is necessary and justifiable in the modern era. Enthusiasts are always on the lookout to improve their pony no matter what they have to do. Take the S550 Mustang, which debuted back in 2015; it stunned the world on how forward-thinking Ford went to bring the Mustang to the 21st century.

Its groundbreaking independent rear suspension, retro fastback profile, long hood, and broad rear haunches changed how a Mustang can be for the modern era. It revolutionized the way the Mustang community thinks and develops performance parts for the world of muscle cars. With all the revolutionary progression in technology, handling, and performance integrated into the new stallion, it still falls short in the weight class. Where Steeda comes into play, is helping Mustang enthusiasts have an abudance of choices to counteract unnecessary weight your Mustang holds but without sacrificing form and functionality.

S197 Mustang Boss 302 Interior

When you look at weight reduction in your Mustang, you need to understand a few things before we point out before a list of parts that can be removed and replaced with weight reduction parts. There are two classifications of weight reduction:

  • Static: Any parts that are not in the drivetrain, braking system, or powertrain to produce or handle the vehicle.
  • Active: These are parts in which are rotational to the systems in your Mustang that are involved with suspension, braking, drivetrain, driveline, and powertrain. All of which has to be powered by the drivetrain to move the pony forward. The key is to improve rotational mass, which will free up horsepower and torque that in the end will create reduced stress on drivetrain components.

Mustang Baer Eradispeed Brakes

When looking at static elements, most often than not, an enthusiast starts with the back seat installing a rear seat delete. Most people don't know that a rear seat in your Mustang accounts for over 30 pounds of weight depending on materials. By installing a rear seat delete, you will decrease static weight, which will free up the horsepower to make your Mustang quicker. Furthermore, you can add a plentiful amount of carbon fiber to such areas, including your Mustang fenders, hood, trunk, and doors to further free up even more static weight.

Another example of static weight elements is one that car enthusiasts know well. Modifying an exhaust can improve performance alongside increasing exhaust volume. The factory exhaust system is not designed generally to maximize performance and in return sound quality, but the factory exhaust also limits cars in other ways too. The factory exhaust on a car like the Mustang or F-150 weighs quite a lot and puts a damper on performance as a result. These exhaust systems limit performance both through their weight and through limiting the actual backpressure from these pipes from the engine, hindering performance figures as you build or modify your car.

custom lightweight mustang midpipe

While on the other hand, active weight can be reduced by drilled and slotted rotors, carbon fiber driveshaft, and half-shafts.

While there are many reasons why people will upgrade their wheels, the weight benefits make a difference in every type of driving. When switching to a lightweight wheel and better tires, a driver receives benefits of lower rotational mass and lower weight while also in many cases having more durable wheels. There are three types of wheels: cast, flow-formed, and forged, all of which have different benefits and consequences. However, if you are looking to move towards lightweight wheels, flow-formed and forged options are the better way to go since cast wheels are generally heavier. Flow-formed wheels such as the Steeda Tridents and forged wheels are great options to go with when building a lightweight car.

Mustang Chassis Rigidity

Chassis Rigidity

As explained above, weight reduction is a crucial tool to ensure the best weight distribution from front to rear and power to weight ratio. To compensate weight reduction, chassis rigidity is necessary. Now you may be wondering what chassis rigidity is? Chassis rigidity refers to stiffening the chassis even further than the OEM intended, preventing flexing in critical areas such as the strut towers, floor pan, trunk pan, and the overall frame of your Mustang. It will help your Mustang handle more horsepower, harder launches, cornering, and vehicle flexing.

How to counteract these issues is quite simple, thanks to extensive engineering and design, companies like Watson Racing and Steeda have come up with ingenious components to aid your Mustang to counteract chassis flexing. To start, one of the biggest things any enthusiast can do is add a roll cage. One of the most popular cages enthusiasts will add to their Mustang is a four-point half-cage. The benefits of adding a four-point cage are the ability to kill two birds with one stone in terms of safety and chassis stiffness. Simultaneously, adding that most racing sanctioning bodies will require a roll bar or roll cage to participate in the even tor racing series, mainly for safety.

Furthermore, while adding a welded or bolt-in roll cage does wonders for safety and chassis stiffness. It adds other parts such as a strut-tower brace, subframe connectors, IRS subframe support braces, and adding a light weight bumper bar that will add strength and reduce weight at the same time. All of these combined will give your Mustang the proper balance of weight reduction while adding strength to the chassis. In the end, you will have the extreme confidence your pony will accept any challenge thrown its way. As every enthusiast knows, the chassis is the bedrock to any Mustang; without it, it will not perform to the legacy in which it was meant to be!

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Image Credit: Ford Motor Comapny, Ford Performance, Baer Brakes, Watson Racing