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Prodrive Subaru WRX STi TT

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With such high speeds aerodynamics is critical and with more regulations, Prodrive was able to develop a Formula style DRS (Drag Reduction System) for the rear wing.  On the longer high-speed sections, the driver is able to manually activate the system to 'flatten' the rear wing reducing drag and increasing the top speed.  

On 6th June 2016, local Manx rally driver, Mark Higgins, lapped the 37.73-mile course in 17min 35.139 sec, equating to an average speed of 128.73 mph.

The Subaru WRX TT Attack car was developed specially to tackle the Isle of Man TT circuit in 2016 and to set a new lap record for a car.

The base of the car was the Subaru WRX, using the same chassis.  The engine block and heads were also based on the original two-litre unit found in the road car but with new internals.

The transmission was the same six-speed semi-automatic transmission as used in the 2008 Subaru Impreza World Rally Car (WRC), but fitted with longer fourth, fifth and sixth gear ratios to allow the car to reach speeds of over 170 mph.

SPECIFICATION

BRAKES

Front & rear: six piston aluminium calipers, 355mm diameter discs

WHEELS

Bespoke rims with Dunlop 245/18 racing slicks (BTCC spec)

STEERING

Hydraulic power assisted

CHASSIS

Subaru WRX STI bodyshell with Prodrive 15CDV6 roll cage exceeding FIA regulations

SUSPENSION

Front & rear: Macpherson strut with four-way adjustable dampers

ENGINE

2 litre flat four 'boxer'

Garrett turbo 

Power   600 bhp

Torque  800 Nm

TRANSMISSION

Permanent four wheel drive

Prodrive/Xtrac 6-speed semi-automatic

Triple plate carbon clutch

Front & rear differential: plated limited slip

Centre differential: hydraulic active

 

VIDEO:  Mark Higgins record lap of the Isle of Man TT circuit

More information about Prodrive Motorsport can be found here    http://www.prodrive.com/motorsport

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