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The Supercharged 911

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Owned by an Australian who is an absolute Porsche enthusiast aged in his mid 70's, the Supercharged 911 is a great mix of the best of modern technology combined with traditional racecar engineering concepts.

This car is a very rare example of a street registered early 911 which can compete with 911 GT3's and 911 Turbos.

The car runs a 3.0 litre SC motor from a mid 70's 911SC and 915 transmission, and is full of all kinds of one off innovative parts.

Lap Times

Lap times are ...

Extremely impressive for a car that is 38 years old.

To put those lap times into perspective, check out the lap times at the 2009 Superlap Australia (Australia's biggest time attack event) ...

http://www.natsoft.com.au/cgi-bin/results.cgi?29/03/2009.ORAN

The Supercharged 911 is road registered and driven on the street regularly.

All the Supercharged 911's lap times were posted prior to install of the Elephant Racing suspension detailed below.

All it's lap times were running torsion bar suspension with relatively standard single tube shocks, so clearly fully adjustable shocks could cut quite a bit off those lap times.

The car

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The car does not use a bolt on supercharger kit - the entire supercharger install was devised by the owner of the car from scratch. Everything from hand made ducting to copper tubing for oil lines has been hand made.

Here are a couple of photos of the supercharger setup. As you can see, the quality of engineering and workmanship is absolutely exceptional ...

untitled image Note the factory-like install of the supercharger and the hand made copper tubing instead of using hosesNote the factory-like install of the supercharger and the hand made copper tubing instead of using hoses

The intercooler has been specifically designed to fit under the ducktail.

The engine is fed with a fresh supply of cool air by a NACA duct in the rear window, right behind the driver's headThe engine is fed with a fresh supply of cool air by a NACA duct in the rear window, right behind the driver's head

The engine is fed with a fresh supply of cool air by a NACA duct in the rear window (shown above), right behind the driver's head, with air ducting passing through the interior of the car theninto the engine bay. Of course this provides a great soundtrack while driving as the induction noise resonates through the intake piping.

In terms of performance, on the dyno graph, the power 'curve' is not a curve at all - it's a straight line that just keeps going all the way to redline.

Suspension

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The rear suspension is the adjustable ASP setup from Elephant Racing.

Shown above are two animations of this system ...

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As detailed on the Elephant Racing site, the adjustable ASP setup ...


"Updates the rear suspension camber curve to meet the needs of modern, wide, low-profile radial tires. The result is superior grip in turns, superior grip in straight-line braking, reduced tire wear. Excellent for both street and track.


The car is still running torsion bars and is not running external reservoir adjustable shocks, so there is still lower lap times possible.

Brakes

The car runs some very large brakes, and modern Porsche calipers, all squeezed under factory 16" wheels. Many said this brake setup could not be fitted under stock Fuchs wheels, but these photos prove it can be done ...

Front brakes on Supercharged 911 - Porsche / Brembo 4 Piston Calipers with custom hatFront brakes on Supercharged 911 - Porsche / Brembo 4 Piston Calipers with custom hat Supercharged 911 front  brakesSupercharged 911 front brakes untitled image

The car runs 16" Fuchs wheels on track days, and 16" 3 piece BBS wheels.

Supercharged 911 - Front brakes under 17Supercharged 911 - Front brakes under 17" wheels

The car also runs a custom made set of 3 piece 17" wheels on the street, with Fuchs forged centres shown above.

Additional Info

The sound of the supercharged motor, flowing through what are believed to be a set of factory racing headers and a custom made exhaust, is absolutely glorious.

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The car is road registered, and docile enough to be used for shopping trips, but let it loose on a track and it morphs into an absolute monster.

Here is a photo of the car taken at the PCNSW club night where Ray did a presentation to the club about he built the car ...

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As Featured In Boost Magazine

The owner and builder of the car is aged in his 70's. The magazine article starts with ...

"It's safe to assume most septuagenarians wouldn't be trying to cram a supercharger in 1970 Porsche 911T, especially when the Germans saw fit for a Turbo. That's unless said senior citizen is Ray, a retiree who prefers boost over bingo any day of the week."

Anyone who has met the Ray via the Porsche Club knows that although his age may classify him as a "senior citizen", he is anything but old.

Videos

The Supercharged 911 launching off a crest at Targa TasmaniaThe Supercharged 911 launching off a crest at Targa Tasmania

You can view videos of the Supercharged 911 competing with a GT3 at Sydney's Eastern Creek Raceway here ...

http://www.tunersgroup.com/Videos/Supercharged_911.html

created on 2009-08-24 23:43:43 by adamr