CloseRuf's new RGT has a new engine. The new motor - designed from scratch by RUF - is a flat-crank, dry-sump, 4.5-litre naturally aspirated V8. The new engine develops 542bhp at 8500rpm and 369lb ft at 5400rpm.
http://www.pistonheads.com/news/default.asp?storyId=21627
Seeing a V8 in the engine bay of a 911 looks odd...
Jun 11, 2011 4:52:47 PM
RUF RGT-8...
Almost 10 years ago to the day, RUF began to fill niches in the market with the, at that time new, water-cooled Porsche models. The first RUF RGT was based on the Porsche 996. It used the 3.6 litre engine from the GT3 as the base with the crankcase from the air-cooled 3.6 litre engines. The engine delivered 385 HP (283kW). The car itself ran on 18" RUF alloy wheels and the narrow body was optimized aerodynamically. The vehicle was fitted with our discrete but functional Integrated Roll Cage.
In 2004 the story continued, this time based on the Porsche 997. Immediately recognizable by the carbon composite fender extensions both front and rear. The powerplant was a naturally aspirated 3.8 litre unit delivering 445 HP (327kW). A dry-sump oil system ensured sufficient lubrication even under tough racing conditions. A roll-cage was fitted standard ensuring a high level of passive safety. The RGT was supplied with a chassis optimized for the race track and ran on 19" alloy wheels.
March 2010 and the time is right for RUF to announce the next generation of RGT, the RGT-8. This spectacular prototype vehicle is powered by a completely new RUF-designed V-8 engine with a 180° crankshaft “Flatcrank”. Four valves arranged spherically together with multipoint fuel injection ensure optimal mixture conditions while the dry-sump system supplies the necessary lubrication. The lightweight engine has a very compact design, has a capacity of 4.5 litres arranged as a V-8 and delivers 550 HP (404 kW) at 8500 rpm and complements with a maximum torque of 369 lbs.ft (500 Nm) at 5400 rpm. At all stages of the design process, compactness and weight saving were of priority, the result of which is a total engine weight of less than 200 kg. A 6-speed gearbox with shortened gear shift movement transfers the power to the rear axle. To ensure the best adhesion characteristics, the RGT-8 is supplied with Michelin Pilot Sport Cup tires running on 19" RUF forged alloy wheels utilizing a single central retaining nut. The powertrain is rounded off with sturdy ceramic brakes as standard for optimal braking.
The current Porsche 911 forms the basis for the RGT-8 chassis which is then further optimized with bodywork components from RUF. As always, an Integrated Roll Cage is supplied delivering increased chassis stability and passive safety. In addition, we are pleased to offer a Frère Package which enhances the standard vehicle with special front fenders, nose and dashboard components. The styling was inspired by the 550 Coupé with which Paul Frère, the Belgian race driver, won the best of class at the 24 Hours of Le Mans in 1953.
Technical Specifications:
Body:
2 seated coupé with integrated roll-cage
2 racing type bucket seats
Aluminium doors and front hood
Carbon fibre engine cover and rear spoiler
Engine:
Lightweight-8-Cylinder-90°-engine with racing DNA
180° crankshaft “Flatcrank”
4.5 Litre displacement
Power output 404 kW (550 bhp) @ 8500rpm
Maximum torque 500 Nm @ 5400rpm
Aluminium crankcase and cylinder heads
Water cooled, cylinderheads and engineblock cross flowed
4-valve system with spherical layout
4 camshafts with hydraulically timed valve system for in- and outlet
Hydraulic valve tappets
Dry sump oil lubrication with two windage trays for each of the 4 chambers
Individual chamber oil suction with 2 suction intakes
Waterpump, generator and AC compressor are directly driven of the Engine (no belts), located at the lowest position
Sequential fuel injection system
Individual cylinder ignition coils
Electronic engine management system
Electronic throttle control system per bank with 2 butterflies
3-Way catalytic converters with stereo closed loop lambda control
On-Board-Diagnosis for continuous monitoring of the exhaust system
Transmission:
Rear wheel drive with 6 speed manual gearbox
Chassis:
Electronic stability control system, ABS, traction control, automatic limited-slip differential
RUF high performance brakes with ceramic discs, perforated and air cooled
Front brake disc diameter 380 mm
Rear brake disc diameter 350 mm
Forged RUF alloy wheels with single central retaining nut
Front : 9Jx19 with 245/35 ZR 19
Rear : 12Jx19 with 325/30 ZR 19
Michelin Pilot Sport Cup tires
Jun 11, 2011 4:56:57 PM
Jun 11, 2011 5:08:24 PM
2012 Ruf RGT-8...
We first saw Alois Ruf’s V-8 engine at the 2010 Geneva Show and now Road & Track has become the first magazine to get a ride in its new supercar.
The Ruf RGT-8 looks like a 911, though there are subtle differences in the front and rear fenders. To trim weight still more, the RGT-8 will have lightweight doors and rear deck lid.
But under that rear deck is what has us drooling. The 4.5-liter aluminum Ruf V-8 is lighter than a Porsche flat-6, but has 550 bhp and 369 lb.-ft. of torque. Ruf claims 0-60 mph will come up in less than 4 seconds, with a top speed of 205 mph. It’s also said the overall package has a lower center of gravity than that of the Porsche powertrain; this, to the benefit of the RGT-8’s handling.
While the engine is a V-8, its flat crankshaft means it doesn’t have the classic thrum of a Detroit V-8, particularly below about 5000 rpm where it is almost Porsche-like. Get above 5 grand and you hear that hint of a V-8 sound.
The transmission is a 6-speed and for now it’s dedicated only to a rear-drive version when the Ruf RGT-8 enters production, probably in early 2012.
RUF-RGT-8_Road-and-Track_Article-link
Jun 12, 2011 10:54:23 AM
One of the most interesting discussions is how Porsche plan to make use of the normally aspirated Porsche Motorsport V8 based on the engine from the RS Spyder race car...
Porsche are planning to use the Porsche Motorsport V8 engine in the various future models...
"High-speed V8 engine with a displacement of more than 4.0 litres with maximum power above 368kW (500 hp)"
"The V8 engine is a further development of the direct injection engine from the successful RS Spyder race car and now offers an output of precisely 563 hp at 10,300/rpm in the 918 RSR... "
"Theoretically, there is indeed still some space there. A 911 GT2 RS costs about EUR220,000. The 918 Spyder will be significantly more than that. Between the two there is still a gap where Italian competitors are currently very active. We are investigating that as an in-house project. We will make a decision by the middle of the year..."
-- Porsche CEO Matthias Mueller
...Porsche 991 GT3 RS may run with a derivative of the awesome RS Spyder V8 motorsport engine...
Chris Harris drives the Porsche RS Spyder at Weissach...
...thanks and all due respect to Chris Harris and Porsche!
Jun 12, 2011 10:58:11 AM
Jan 29, 2012 7:34:03 PM
Jan 29, 2012 10:00:47 PM
Mar 3, 2012 7:36:18 PM
Apr 3, 2012 9:27:12 PM
Ruf at Geneva: RGT-8, Rt-35, CTR3 Clubsport...
Ruf at Geneva: RGT-8, Rt-35, CTR3 Clubsport -- Video Link
Sep 18, 2012 7:54:48 PM
Ruf RGT-8 V8 Prototype vs Ruf CTR Yellowbird...
Ruf RGT-8 V8 Prototype vs Ruf CTR Yellowbird -- Video Link
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