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"Worth selling your house for" - Tiff Needell

Autocar

 

"The greatest all round 911 ever"

GT Purely Porsche

 

It hurts me to say this, but of all the cars you can buy today, this is the best

Jeremy Clarkson - BBC TV

 

all figures quoted are with Porsche X50 performance upgrade which takes the standard 911 turbo

to 450 bhp and increases torque from 413 ft lbs to 457 ft lbs

Powertrain Layout
Rear Engine / 4WD
Top Speed
202.0+ mph (June 2004)
0 - mile
11.8 secs
Lateral Acceleration
0.96g
0 - 60 mph
3.6 secs (sept 02)
0 - 100 - 0 mph
13.02 secs (sept 02)
30 - 70
3.3 secs
60 - 0
2.4 secs
Configuration
Twin Turbo Opposed 6-Cylinder ('flat 6')
Valvetrain
DOHC 4 valves / cyl
Displacement
3600 cc / 219.7 cu in
Power
450 bhp @ 5700 rpm
Torque
457.0 ft lbs @ 4400 rpm
Bhp / Liter
144 bhp
Bore
100 mm / 3.94 in
Stroke
76.4 mm / 3.01 in
Redline
6600 (starts at)
Gear Type
6 Speed Manual
1st Gear Ratio
3.82:1
2nd Gear Ratio
2.05:1
3rd Gear Ratio
1.41:1
4th Gear Ratio
1.12:1
5th Gear Ratio
0.92:1
6th Gear Ratio
0.75:1
Final Drive Ratio
3.44:1

 

The 911 turbo has a 3.6 ltr flat six engine combined with twin exhaust driven turbochargers arranged in parallel. Air is routed through an air filter housing the twin compressors. Here the air is compressed and passed to the engine via twin intercoolers.

Optimum boost pressure is regulated by the engine management system, which in extreme driving, will request a higher boost pressure upstream of the throttle valve. Consequently the turbochargers will already be operating at a higher speed when the throttle valve is opened - negating the 'turbo lag' so often afflicting other systems

 

The unique four wheel drive layout of the 911Turbo exists to maximise traction. Power is distributed between the front and rear axles by a 'viscous coupling' (silicone fluid between two plates). As soon as the front and rear axles begin to rotate at different speeds, varying amounts of torque is transferred from the faster rotating plate to the slower. At least 5% of the power is always directed to the front wheels, increasing to 40% in extreme driving - on track for instance.

 

Weight
1579 kg / 3480 lbs
Length
4435 mm / 174.6 in
Width
1830 mm / 72.0 in
Height
1295 mm / 51.0 in
Wheelbase
2350 mm / 92.5 in
Front Track
F 1465 mm / 57.7 in
Rear Track
R 1522 mm / 59.9 in
Steering
Rack and Pinion with Power Assist
Body / Frame
Unit Steel
Front Brakes
Vented Discs with ABS and Vacuum Assist
Front Brake Size
F 330 mm / 13.0 in
Rear Brakes
N/A
Rear Brake Size
R 330 mm / 13.0 in
Front Wheels
F 45.7 x 20.3 cm / 18.0 x 8.0 in
Rear Wheels
R 45.7 x 27.9 cm / 18.0 x 11.0 in
Front Tires
225/40ZR18
Rear Tires
295/30ZR18

 

The 911 turbo has the most powerful braking system ever fitted to a production car.

The system, designed to withstand extreme punishment, features four-piston monobloc aluminum fixed caliper brakes at front and back with 330 mm cross drilled internally vented discs, four channel ABS and a 10" vacuum brake booster.

 

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From 'What Car' (review of the standard 996 turbo)

Performance

With 420bhp and nearly as much mid-range punch, the Porsche 911 Turbo is the king of supercars. It has a devastating turn of pace from any speed and in any gear. There isn't the slightest hint of temperament, just seamless, endless forward thrust. For good measure, the brakes are every bit as effective.

Ride & Handling

For such a focused machine, the 911 Turbo is amazingly pliant over most surfaces, regardless of speed. However, low-speed bumps are felt through the taut suspension. Extend the Turbo beyond city limits and it soon becomes a very comfortable express with breathtaking cornering power to the point where you will find your limits long before you discover the Porsche's.

Refinement

The price for the Turbo's huge performance advantage over lesser 911s is more tyre rumble from the massive hoops of rubber that stick the car to the ground. Engine noise is mostly left behind when cruising, and the howling note when it's stretched is every bit as intoxicating as laughing gas at the dentist's.

 

From 'Autocar'

On a dry road it is near-impossible to reach the Turbos limits. The car just turns in on instruction, tucks in and heads off looking for the next apex.

 

here is a link to a 13mb video from the Turbo at Bruntingthorpe Airfield (right click 'save as')

here is a link to a 500k rm video of Clarkson reviewing the Turbo (right click 'save as')

here is a link back to www.SadGit.net