Ken Block and Crawford Performance: Evolution of Subaru Gymkhana Cars - Crawford Performance

Ken Block and Crawford Performance: Evolution of Subaru Gymkhana Cars

Ken Block and Crawford Performance have together crafted some of the most iconic Subaru Gymkhana cars in motorsport history. From the early days of Ken Block 43 to the cutting-edge builds that defined a generation of precision drifting and stunt driving, this partnership revolutionized the Subaru WRX STI's capability on and off the track. Understanding their evolution means diving into the meticulous performance enhancements, engineering breakthroughs, and unique styling choices that have made these cars legendary. Let’s take a detailed look at how the collaboration between Ken Block and Crawford Performance shaped these Gymkhana machines over the years.

Ken Block and Crawford Performance: The Foundation of Gymkhana Subaru Builds

The Birth of a Motorsport Icon

Ken Block’s first Gymkhana cars captured the imagination of automotive and motorsport fans worldwide. The foundation of these builds rested on the Subaru WRX STI platform—an already formidable rally pedigree machine. Crawford Performance, a renowned name in Subaru motorsport engines and parts, became an essential partner in this journey. The synergy between Ken Block’s driving skills and Crawford’s engineering expertise pushed the Subaru WRX STI beyond factory limits into a world-class Gymkhana weapon.

Crawford’s Role in Performance Engineering

Crawford Performance brought a wealth of knowledge centered on Subaru’s boxer engine and chassis tuning. Their innovations spanned from engine short blocks and forged internals to specialized suspension tweaks that enhanced agility and durability in extreme driving conditions. These upgrades gave Ken Block 43 and subsequent Gymkhana cars the reliability and power necessary for high-risk, high-speed maneuvers characteristic of Gymkhana events.

Evolution of the Subaru WRX STI in Gymkhana Series

Early Gymkhana Builds

Ken Block’s initial Subaru gymkhana cars, like the model used in Gymkhana 1 and 2, were built with a strong emphasis on lightweight components and raw power. The 2008 Subaru WRX STI featured carbon fiber panels, including the hood and roof, to reduce weight, while a modified 2.65-liter boxer engine tuned by Crawford Performance churned out close to 650 horsepower.

Key early enhancements included:

  • Custom carbon fiber body parts to reduce overall weight
  • Upgraded turbochargers and Garrett twin-scroll setups for boost efficiency
  • Motec M800 ECU with digital dash for real-time tuning
  • High-performance Brembo braking systems with adjustable bias
  • Tein coilovers and Cusco sway bars tailored for Gymkhana’s tight handling demands

Later Iterations and Refinements

With each Gymkhana iteration, Ken Block and Crawford Performance refined the Subaru WRX STI platform. Improvements focused on enhancing durability, throttle response, and cornering precision. For example, the increased use of billet components, such as forged pistons and rods, improved engine strength, while upgraded drivetrain elements like the KAPS six-speed dog box transmission allowed for faster, smoother gear changes during sequences.

Performance Enhancements by Crawford Performance

Engine and Short Block Innovations

Crawford Performance’s Subaru short blocks are built from new OEM blocks and come with forged pistons and connecting rods designed to withstand the extreme forces of high horsepower and torque. These short blocks are precision balanced and offer customizable compression ratios suited for both race fuel and pump gas. Incorporating multi-layer steel (MLS) head gaskets and ARP head studs ensures that the engine components maintain integrity under boost.

Exhaust and Intake Systems

The Gymkhana Subaru cars also benefited from Crawford Performance’s specialized exhaust systems, optimized for maximum flow and aggressive sound without compromising power delivery. Mandrel-bent piping and TIG-welded stainless steel construction form the backbone of these exhausts, a feature that greatly influences both engine breathing and iconic Gymkhana soundtracks.

Air Oil Separator and Engine Longevity

One notable component credited to Crawford Performance is their air oil separator (AOS). Designed to combat oil blow-by and protect intake valves from carbon buildup, the AOS ensures cleaner combustion and helps prevent detonation. The installation of this component is crucial in maintaining engine longevity and consistent track-level performance, particularly in highly tuned Subaru WRX STI engines.

Chassis and Suspension: Enhancing Handling for Gymkhana

Suspension Upgrades

A Gymkhana car’s handling is as critical as its horsepower output. Crawford Performance’s suspension packages include custom valved Tein coilovers, Cusco sway bars, and custom hub assemblies to optimize the Subaru WRX STI’s handling in tight corners and rapid transitions. These modifications allow Ken Block’s cars to execute precision drifting with razor-sharp control.

Reinforced Chassis and Safety Features

To match the performance upgrades, all Gymkhana Subarus feature FIA-certified roll cages built by specialists like Vermont Sports Car. These not only improve driver safety but also add rigidity to the chassis, enhancing handling response. High-strength Willans seat belts and Recaro carbon/Kevlar bucket seats complete the interior setup to protect drivers during aggressive stunts.

Visual and Aerodynamic Evolution

Carbon Fiber and Lightweight Components

From the early use of carbon fiber hoods and roofs to Prodrive’s signature carbon wings and door panels, the Gymkhana Subaru cars evolved with a focus on weight reduction and aerodynamic efficiency. Lexan rear windows replaced heavier glass components, helping drop unnecessary pounds without sacrificing structural integrity.

Livery and Branding Changes

The iconic livery of Ken Block 43 has changed with each Gymkhana release, often showcasing bold graphics and sponsor decals. This visually complements the cars’ aggressive performance persona while maintaining a strong connection with the Ken Block Collection products and sponsors.

Ken Block Collection Products Inspired by the Gymkhana Subarus

Performance Parts from Ken Block 43 Collection

Fans and enthusiasts can bring a piece of Ken Block’s Gymkhana magic to their own rides with the Ken Block 43 Collection. This range includes specially engineered parts by Crawford Performance, such as:

  • Air Oil Separators designed for superior oil blow-by management
  • High-flow gymkhana exhaust systems with bolt-on installation
  • Built Subaru short blocks for increased horsepower and reliability

How These Products Enhance Your Subaru WRX STI

Ken Block and Crawford Performance’s product line not only reflects motorsport pedigree but also improves real-world performance and engine longevity. Whether you're building a competition car or upgrading your street WRX STI, these components help deliver stronger power, better reliability, and that unmistakable Ken Block-inspired edge.

Conclusion

Ken Block and Crawford Performance have together forged an indelible legacy through the evolution of Subaru Gymkhana cars. From the groundbreaking Ken Block 43 WRX STI to the latest high-performance enhancements, this partnership has continually pushed the boundaries of engineering, driving precision, and motorsport innovation. By combining Crawford Performance’s expert Subaru tuning with Ken Block’s legendary driving, these Gymkhana cars remain a benchmark for performance enthusiasts worldwide. To dive deeper into these advancements and explore the Ken Block Collection products that bring this performance culture home, visit the official [Ken Block Collection site](https://example.com/ken-block-collection) and experience the pinnacle of Subaru WRX STI modifications yourself.

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