V8 Vantage GT4

V8 Vantage GT4 Description

In production: 2008 – date

Chassis numbers: AMRVANTAGEGT4-040 - onwards

The Vantage GT4 was unveiled in Dubai in mid-November 2008 by Aston Martin Lagonda chairman David Richards. The car was an evolution of the 4.3 litre N24 with the larger capacity 2009MY 4.7 litre V8 with engine management system recalibrated for race use. It also had a free flow exhaust system and air filters and was available with either conventional six speed or Sportshift transmission. Built by AMR /Prodrive in Banbury either as a national GT4 or track day car.

The suspension was retuned with larger diameter front and rear roll bars and adjustable ride height aluminium dampers to enhance the handling. It also had larger two piece front brake discs with revised cooling ducts.

At 1,330 kg the Vantage GT4 was 300 kg lighter than the standard car. This was achieved through a range of weight reduction measures. The interior trim was removed with the exception of the facia moulding, which was re-trimmed in Alcantara, and the console and door casings were replaced by new lightweight mouldings.

The chassis was fitted with a high-strength steel rollcage and Recaro competition seats. A suede-trimmed steering wheel with a quick release mechanism was fitted as standard. The Vantage GT4’s safety features included a Sabelt sixpoint safety harness with a push-button release and Lifeline Zero 360 gas extinguisher system.

The V8 Vantage road car’s suspension required only minor adjustments for optimal track performance. These included larger diameter front and rear anti-roll bars and adjustable ride height aluminium dampers, as well as single rate, flat ground springs with separate helper springs. The front subframe was modified for extra camber and castor. Cast magnesium front and rear wheels were standard fit with high performance Yokohama A048-R tyres. The brakes were uprated with Pagid RS 29 race pads.

As further endorsement of the standard V8 Vantage underframe, the active safety systems were directly carried over to the Vantage GT4, including: dynamic stability control, traction control, ABS and electronic brake force distribution, providing reassurance and enhanced control in slippery conditions.

Many owners of the V8 Vantage N24 found that their 4.3 litre cars had been uncompetitive against the GT4 so many have subsequently been upgraded to GT4 spec.

In November 2010, AMR released information about the revised 2011 V8 Vantage GT4. The revised racing car took its design inspiration from Aston Martin’s V12 Vantage road car, giving it enhanced aerodynamics and increased downforce. The aero upgrades involved a new splitter giving increased downforce at the front of the car, as well as channelling cooling air to the brakes and radiator. At the rear, the car gained the V12’s larger boot ‘flip-tail’. This worked together with a new carbon fibre diffuser and rear underfloor, which created an area of low pressure under the rear of the car, to increase downforce. The redesigned underfloor also channelled more air through a new rear-mounted high capacity transmission oil cooler.

The new car carried over the 4.7 litre V8 from the 2009MY version but with new engine mapping giving increased power and torque and also the choice of Sportshift or 6 speed manual.

In addition to the engine and aero upgrades, it was possible for customers to order, for the first time, a race-developed Bosch ABS and traction control system. This system was specifically optimised by Bosch Motorsport for the Vantage GT4 to provide race-enhanced performance in both wet and dry conditions.

V8 Vantage GT4 Specification

Engine & Transmission
Aston Martin Racing 4.7 litre V8 GT4 engine
ITG cylindrical foam air filters
Reduced cell density primary catalysts
Revised engine calibration (97 RON fuel)
EGR and secondary air system removed
Simplified oil breather system with catch tank
Weight-reduced rear silencer without by-pass valves
FIA-approved ATL bag type fuel tank with twin fuel pumps – 100 litre (22 gallon) capacity
Standard six-speed manual transmission or Sportshift (ASM) transmission – fitted with breather catch tank
Valeo twin-plate cerametallic clutch (215mm) with lightweight flywheel
Chassis
FIA approved full roll cage in 40mm x 1.5mm 15CDV6 high-strength steel
Preparation for pneumatic jacks incorporating tapping plates
Motorsport towing eyes
Polycarbonate side and rear windows
Re-styled side sill with exposed carbon fibre rib
Quick-release bonnet/tail safety latching with hinges retained
Lightweight aluminium side strakes
Suspension
Single-rate, flat ground, 2.5 in ID Eibach springs with separate helper springs
Stiffened front and rear anti-roll bars
Bilstein suspension, adjustable ride height, aluminium dampers
Front subframe modified for extra camber and castor
Wheels & Tyres
Front: 10in x 18in cast magnesium
Rear: 11in x 18in cast magnesium
High performance Yokohama A048-R tyres.
Braking System
Standard radial-mounted four piston monoblock calipers fitted with high-performance Pagid RS 29 race pads
Updated two-piece front brake discs
Front cooling ducts to enhance brake cooling
Electrical
Reduced weight and optimised route wiring harness
Optima gel lightweight battery
Battery cut-off relay
New switch panel mounted in centre console incorporating re-settable circuit breakers for each fuel pump, extinguisher button, battery cut-off button, heater controls, mirror switch and toggle switches for fog lights, hazard lights, traction control and heated front screen
Panel graphics illuminated by electroluminescent film
Interior
Recaro competition shell seat embroidered with Aston Martin logo
Sabelt six-point safety harness – push-button release
FIA compliant Lifeline Zero 360 plumbed-in extinguisher system (gas) – four engine bay and two interior nozzles
Raised driver ’s footrest
New simple door casings moulded in ‘Twintex’ for weight saving and compatibility with rollcage
Weight-reduced facia, trimmed in Alcantara
Shortened one-piece carbon fibre centre console
Quick-release, suede-trimmed steering wheel
Options
Two-way adjustable dampers
Passenger seat and safety harness
Dry break fuel fillers
Dual fuel filler
HANS seat and safety harness
Air jacks including lance
Pair of GT4 xenon spot lights
Endurance fuel tank - 120 litre capacity
Pi Clubman display & data logger
Shift light (only available with Pi Clubman)
Rear rain light
Air conditioning
Dimensions
Length 4380mm
Width 1865mm (excluding mirrors)
Height 1210mm
Wheelbase 2600mm
Front track 1580mm
Rear track 1590mm
Kerb weight 1350kg
Fuel tank size 100 litre
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