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CHASSIS SPECIFICATIONS

Q: What actually is a Chassis?

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The chassis is the structural foundation of the car. Fabricated from precision steel box section, it is the framework to which the engine, suspension and bodywork are mounted.

It is the largest and most critical structural component of the entire vehicle — the platform that defines strength, handling and safety.

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Q: How strong is the Chassis?

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Our SB5 UHP-1 and UHP-2 chassis are constructed from thick-wall, high tensile square box section steel, delivering approximately 40% greater tensile strength than conventional thin-wall tubing.

The result is an exceptionally strong, rigid platform designed specifically for high-performance sports car applications.

 

​​​​​​​​Q:  What difference does the thick wall box section make to the car? 

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Using higher tensile strength steel significantly enhances structural integrity.

Benefits include:

  • Increased torsional rigidity

  • Reduced chassis flex under cornering, braking and acceleration

  • Greater resistance to surface corrosion

  • Reduced risk of metal fatigue or cracking

A rigid chassis ensures consistent suspension geometry and predictable vehicle dynamics — essential for both road and track performance.

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​​​Q:  If the chassis is stronger does it improve the handling of the car?

 

Absolutely.

All suspension components mount directly to the chassis. Increased rigidity means reduced suspension flex, ensuring that wheel alignment and geometry remain stable under high cornering loads.

This delivers:

  • Improved balance

  • Sharper steering response

  • Greater high-speed stability

  • Increased driver confidence

Our award-winning chassis also features a precision through-bolt system for the lower wishbones and front rocker assemblies, specifically engineered to manage high cornering forces.

Q:  I want to-do a self build.  Will I weaken the chassis by drilling holes into the chassis to mount components during my build?

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We understand the needs of self-builders.

To preserve structural integrity and reduce unnecessary drilling, critical mounting points are pre-welded onto the chassis, including:

  • Engine mount fixings

  • Brake and fuel line supports

  • Wiring loom mounts and earth points

  • Radiator and steering rack mounting plates

  • Water pump and flexible brake line brackets

  • Panel mounting points

This approach:

  • Saves build time

  • Maintains structural strength

  • Prevents potential water ingress

  • Reduces the risk of corrosion

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Q:  Are all your chassis built in-house and how do you ensure they accurate?

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All chassis, suspension subframes and wishbones are fabricated in-house using dedicated Raptor precision jigs.

Every component is assembled by highly skilled coded welders, ensuring consistent accuracy, repeatability and structural integrity across every build.

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Q. Which chassis suits me?

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SB5 UHP-1

Best suited for Road Use

  • High tensile box section and round tube construction

  • F1-style front push-rod suspension

  • Reinforced lower wishbone mounts

  • Cross-braced steering column mounts to reduce scuttle shake

  • High tensile seat mounts for enhanced side impact protection

  • Pre-welded mounting bosses and plates

  • Rear suspension toe adjustment for improved high-speed stability

 

UHP-2

Designed for Road & Track Day Performance

Includes all UHP-1 features, plus:

  • Engineered for turbocharged applications exceeding 400 bhp per tonne

  • Increased impact protection

  • Additional cross-bracing on front suspension cradle

  • Reinforced rear differential cradle for high torque engines

  • Enhanced bulkhead reinforcement

 

UHP-3

Motorsport-Focused Performance

The UHP-3 is constructed from an even higher grade ultra-high tensile box section steel.

  • Lighter structure with superior rigidity

  • Designed for applications up to 500 bhp per tonne

  • Extensive front and rear cross-bracing

  • Integrated full roll cage forming a structural safety cell

  • Side impact bars exceeding FIA recommendations

  • Additional bulkhead reinforcement

  • 6-point harness mounting positions

  • Front and rear towing eyes

  • Anti-roll bar mounts

  • Rear toe adjustment

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Q:  Can i paint my chassis myself before i start my build?

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All chassis are supplied with a rust preventative coating and mill scale from the manufacturing process.

For optimal durability and finish, we strongly recommend:

  • Professional shot blasting

  • Hot powder coating

Proper preparation ensures excellent paint adhesion and long-term protection.

All factory-built Raptors undergo this process, and we offer a range of powder coat colours so you can create a truly bespoke build.

     

Q:  I see you have Raptors with full cages on.  Is this just for racing? 

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Integrated Roll Cage – Safety Without Compromise

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The primary function of the roll cage is to create a protective safety cell around the driver.

Our fully integrated cage:

  • Absorbs impact energy in side, rear and rollover scenarios

  • Is engineered to deform progressively under load

  • Is positioned to maximise occupant protection

  • Maintains generous cabin space

Because the cage is integrated into the chassis rather than added later, it enhances overall structural rigidity without compromising comfort.

As we often say — a shoebox is always stronger with the lid on.

   

Customer Feedback

Awesome! I love how it makes the Raptor so much more aggressive and imposing on the road!

 

Just feel so much more confident in the car on track, it's like having a safely shield around me!  

 

Awesome design,  clearly see that this is an engineer's cage ! 

 

I went for the Azure blue bodywork and dark grey  Full cage and chassis,  stunning combo!​​​​

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Click below for more information 

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