R

Ultimate Air-Cooled Analogue Driving Experience

Inspired by the rich tradition of special lightweight Porsche road cars, the R further distils Theon Design’s signature recipe, sympathetically enhancing and relentlessly honing the 964 platform to deliver the purest, most exhilarating analogue Porsche driving experience.

It’s the Theon take on the ultimate, lightweight air-cooled 911 road car.

Obsessive Lightweighting

The Theon R is designed to deliver a visceral, immediate driving experience like no other. Key to this is an extensive programme of lightweighting, which ensures that the R weighs in at under 1000kg with all fluids on board. Light, but super-strong carbonfibre is used throughout – for the interior and all body panels, including the doors – developed from the ground up with an F1 composites supplier. As with all Theon builds, each carbon panel is digitised and modelled in CAD to ensure a perfect fit.

The R’s lightweight shell has modern levels of rigidity thanks to a comprehensive course of seam welding, as well as the addition of Theon’s innovative carbon tubs, which are bonded to the chassis, dramatically improving torsional strength without adding weight.

Sublime 500+BHP Flat-Six

Power comes from the most extreme incarnation yet of Theon’s signature 4.0-litre air-cooled flat six, which features a 24-valve, dual overhead cam cylinder head and four valves per cylinder. The stunning powerplant revs to over 9,000 rpm and puts out 500+bhp – more than 125bhp per litre – while also producing over 400Nm of torque. It combines a ferocious top end rush with effortless in-gear flexibility, while emitting a sound akin to that of a ‘70s RSR race car.

The flat-six drives the rear wheels through a short throw, six-speed manual ‘box and a Wavetrac limited-slip-diff. With a power-to-weight ratio of more than 500bhp per ton – the R packs a better power-to-weight ratio than any production 911; it can accelerate to 60mph from rest in 3 seconds and 100mph in just 6.5 seconds.

Dynamic Brilliance

The R takes the dynamic ability of the Theon-enhanced 964 platform to new heights thanks to the use of a bespoke, fully adjustable Motion Control Suspension (MCS) system. This state-of-the-art package deploys the same technology used in multiple Porsche global racing series. Thanks to a carefully tailored MCS 3W damper – developed specifically for the R – the car possesses unrivalled depth, and breadth, of dynamic ability.
The MCS system enables the R to devour twisty tarmac, from European mountain passes to Californian canyons, yet its wide range of adjustability means it can also be tuned for track use, becoming a super tied-down circuit machine at the twist of a dial.

Technical Specifications

WEIGHT

Sub 1000kgs ‘wet’ weight

ENGINE

Air-cooled, horizontallg opposed, drg-sump lubricated, rear-mounted

DISPLACEMENT

4.OL

COMPRESSION RATIO

11.3 : 1

INTAKE SYSTEM

Single 997 GT3 4.OL throttle bodg with 997 GT3 4.OL plenum

MAX. POWER

500bhp+

MAX. TORQUE

400ft-lb+

EMISSION CONTROL SYSTEM

Catalgtic converters with lambda sensors

COOLING SYSTEM

Front mounted oil cooler

ENGINE MANAGEMENT SYSTEM

MoTec

LUBRICATION SYSTEM

Dry sump

GEARBOX

HSC-200 6 Speed H-pattern transaxle gearbox

BRAKES

Ceramic brakes with BREMBO calipers
Front – 6 piston pillar one piece calipers
Rear – 4 piston pillar one piece calipers
(RS brake sgstem also availible)

CHASSIS

Steel monocoque with RS seam welding and Fl grade carbon fibre chassis strengthening ‘tubs’

BODY

Carbon fibre full bodg fitted to the original chassis safety structure

AERODYNAMICS

Optimised aerodynamics including:
Fixed rear wing
Cab top deflector
Rear Diffuser
Front Splitter
‘Flat’ floor

Theon reserve the right to adjust the specifications without notice where necessary.