Performance Developments - demo subaru cars, examples of engine re mapping

Set out below is information on our two Demonstration cars. If you have any questions on what has been done to the cars Paul and Stephen will be happy to talk to you.

Subaru ST17 UK Prodrive

Paul has always had a dream to create a Subaru that would be at home on the track and still be suitable for everyday road use. He now feels he has accomplished his mission and what a car it is! It handles superbly but is certainly not a car for novices. Like all Subarus it needs careful handling to achieve maximum effect but as a driving experience it is quite unique. For track use the power will be around 600bhp.

As a former Formula One Stock Car driver and a Subaru enthusiast for 12 years Paul knew exactly what he wanted and had the knowledge and expertise put his plans into practice. He has designed every aspect of the vehicle and, as a result, it represents a personal statement as how Subaru Imprezas can be pushed to the limit to achieve a driver’s vision. The starting point was a factory standard STI7 UK Prodrive purchased in February 02. The design process was partly intuitive – knowing what the Subaru is capable of and then putting together the components to achieve the right balance of power and safety.

The impressive specification is as follows;

Engine

EJ20 closed deck block, custom pistons, Tracktive rods and crank.

ARP block bolt kit, 14mm WRC head stud kit.

Ported and polished STI8 head with AVCS.

Oversized valves

76mm throttle body

Reverse intake manifold with custom pipe kit

Hyperflow front mount

Rotate mount Garrett turbo with Turbosmart external wastegate

Full 76mm exhaust system

Bosch 044 fuel pump with swirl pot mounted in boot

Hydra Engine Management System

Transmission

OS Giken twin plate clutch kit

Standard STI 6 speed gearbox

Brakes

CompBrake 6 pot front calipers with 350mm discs, Hawk Race Pack.

CompBrake 4 pot rear brake calipers with 330mm discs with aluminium bells to work with standard handbrake shoes

Wheels

Ultralite 18in wheels with Toyo 225/40/18 tyres

Interior

Motordrive front seats

Sabelt 5 Point seatbelts

T45 Custom Cages rollcage redesigned in rear to accommodate rear belts

Full interior respray in WRC blue

Paul has lost count of the number of hours he has spent designing and building the Subaru and takes a great deal of pride and satisfaction from what he has achieved. He says, “I have always enjoyed driving Subarus and wanted to set myself the challenge of creating something unique to show what can be achieved. The beauty of Subarus is that they can be customised to suit the owner’s wishes and I enjoy coming up with new ideas and finding solutions to problems.”

The car was put through its paces at a Track Day at Elvington near York recently and Paul was delighted with its handling and overall performance.

Subaru Impreza ST18

Stephen's car is a prime example as to how a standard Subaru can be developed at a reasonable cost to deliver improved performance and significantly enhance driver appeal. The car generates 441bhp at 6450rpm and 521nm at 4710rpm.

Stephen has also raced Formula 1 Stock cars and fully appreciated the additional power and road handling the modifications have given him.

The spec for his car is as follows;

Engine

ECUTEK Re map

Engine Specification

Stainless Unequal length headers

GT30 Garrett turbo

Saard 650cc injectors

APS induction kit

Hyperflow top mount cooler

Full 3in exhaust system

Brakes & Suspension