Engineering:Ruf BTR2
| Ruf BTR2 | |
|---|---|
 1998 Ruf BTR2 | |
| Overview | |
| Manufacturer | Ruf Automobile GmBH |
| Production | 1993–1998 (9-13 produced) |
| Body and chassis | |
| Class | Sports car (S) |
| Body style | 2-door coupé |
| Layout | Rear-engine, rear-wheel-drive |
| Related | Porsche 993 Ruf CTR2 |
| Powertrain | |
| Engine | 3.6 L air-cooled, SOHC turbocharged flat-6 |
| Transmission | 6-speed manual |
| Chronology | |
| Predecessor | RUF BTR |
| Successor | RUF BTR III |
The Ruf BTR2 is a sports car produced by Ruf Automobile. Based on the Porsche 993 Carrera, it succeeded the original BTR. The BTR2 was among the fastest road cars of its time, attaining a top speed of 308 km/h (191 mph).
History
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The BTR2 began production in 1993, as a homage to the company's first production car, shortly after the Porsche 911 (993) started production. It preceded the introduction of the 993 generation of the 911 Turbo by 2 years, making it the first turbocharged 993 model ever produced.[1] The BTR2, based on the 911 Carrera, was only available with rear wheel drive, and featured a single turbo setup and narrow bodywork, while the 993 Turbo had an all wheel drive system, twin sequential turbochargers and wide bodywork.[2]
Specifications
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The BTR2 is powered by a 3.6 L flat-six engine based on the unit in the 993 Carrera but upgraded with a single turbocharger running 11.6 psi of boost pressure, intercooler, modified camshafts, an auxiliary oil-cooler, a new exhaust system, lowered compression ratio (from 11.3:1 to 8.4:1) and a Bosch Motronic engine management system.[3] These upgrades allowed the engine to generate 420 PS (309 kW; 414 hp) at 5,000 rpm and 435 lb⋅ft (590 N⋅m) of torque at 4,800 rpm.[4] Other mechanical changes included a RUF 6-speed manual transmission, 30 mm lowered suspension, stiffer anti roll bars, limited-slip differential with 60 percent lockup and bigger brakes (320 mm front and 300 mm rear). The also featured 18 inch Ruf 5-spoke alloy wheels, special bucket seats, restyled bumpers and a fixed "whale tail" rear wing reminiscent to the one found on the Porsche 964 Turbo.[1] The car could accelerate from 0–62 mph (0–100 km/h) in 4.1 seconds and could attain a top speed of 191 mph (308 km/h). Automobile magazine Car & Driver tested a BTR2 and found the car capable of accelerating from 0–60 mph (97 km/h) in 3.7 seconds, 0–150 mph (241 km/h) in 26.2 seconds and completing the quarter-mile in 12.2 seconds at 115 mph (185 km/h).[5]
References
- ↑ 1.0 1.1 "Curbside Classic: 1995 Ruf BTR-2 – No, It's Not A Porsche." (in en-US). 9 December 2014. http://www.curbsideclassic.com/curbside-classics-european/curbside-classic-ruf-btr-2-no-its-not-a-porsche/.
- ↑ "1994 RUF BTR2" (in en). https://www.goodingco.com/vehicle/1994-ruf-btr2/.
- ↑ "RUF BTR2 - RUF Automobiles | Parts, Powerkits, Upgrades, for Porsche Automobiles" (in en-US). RUF Automobiles | Parts, Powerkits, Upgrades, for Porsche Automobiles. https://rufautomobiles.com/portfolio/btr2/.
- ↑ "WATCH: Seven Reasons Why the RUF BTR2 is Better Than a Stock Porsche 911 | Automobile Magazine" (in en-US). Automobile Magazine. 2018-06-01. https://www.automobilemag.com/news/watch-seven-reasons-why-the-ruf-btr2-is-better-than-a-stock-porsche-911/.
- ↑ Car and Driver May 1997
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