Lexus unveiled the IS-F high-performance luxury sedan at a press conference at the 2007 North American International Auto Show (NAIAS) in Detroit.
The all-new 2008 IS-F high-performance luxury sedan will deliver more than 400 horsepower from a 5.0-liter V8 engine when it goes into production.
IS-F Performance Sedan
Much of the development of the new IS-F took place at Fuji Speedway and the Higashi-Fuji Technical Center in Japan. The IS-F is based on the proven rear-wheel-drive Lexus IS, which is equipped with a double-wishbone front and multi-link rear suspension. As well as the IS performs, Lexus engineers demanded much more of the all-new IS-F. The result is a performance tuned 5.0-liter V8 engine, topped with specially engineered heads fed by a two-stage intake system, that produces 400-plus horsepower and more than 350 ft.-lbs. of torque. The all-new IS-F is equipped with engine-oil and transmission-fluid coolers for high-speed performance and a cylinder head-scavenging oil pump for high g-force driving.
The IS-F engine is mated to the world’s first eight-speed direct sport-shift transmission. A new torque-converter lock-up control was developed that allows for a direct, crisp gear change through the constant lock-up of the torque converter in second through eighth gears. In Drive mode, the IS-F transmission performs with great smoothness, and the torque converter allows for great launch ability for fast standing-start acceleration that will register a zero-to-60 time in less than 4.9 seconds.
This unique transmission also features an advanced Manual mode. A pair of paddles located within a fingertip’s reach behind the steering wheel enables the driver to make ultra-fast up-shift gear changes within a tenth of a second. Downshifts are accompanied by automated and incredibly precise throttle blips to match engine RPM to vehicle speed.
The impressive acceleration achieved by the IS-F requires it be equipped with heavy-duty Brembo brakes designed to the specifications of the Lexus engineering team. Huge, 14.2-inch perforated front discs are gripped by rigid, powerful six-piston aluminum calipers, while 13.6-inch rear perforated discs feature two-piston calipers. High-friction brake pads are equipped on all four wheels. The brakes are finished with the Lexus name displayed on the calipers, a first for a Lexus production vehicle.
The IS-F features custom-designed 19-inch forged alloy wheels as standard. The wheels were built to Lexus specifications by BBS and are surrounded by high-performance sport tires.
Lexus IS-F Preliminary Specifications
Powertrain
Engine: 5.0 Liter V8
Estimated Horsepower: More than 400
Estimated Torque: More than 350 lb.-ft.
Transmission: Eight-speed direct paddle sport shift gear box
Brakes
Large diameter perforated discs
Front/Rear: 14.2 inches/13.6 inches
Opposed aluminum calipers
Front/Rear: Six piston/two piston
Wheels
Forged aluminum wheels
Front: 225/40R19 (19 x
Rear: 255/35R19 (19 x 9)
Performance
0-60 MPH Acceleration: Under 4.9 seconds
Fuel Economy: TBD
Emissions Rating: ULEV II
Dimensions (inches)
Overall Length: 183.5
Overall Width: 71.5
Overall Height: 55.5
Wheelbase: 107.5
Posted on 09/01/07 By F.B
