| SIN R1 | |
| Class: | Sports car (S) |
| Layout: | Rear mid-engine, rear-wheel-drive |
| Transmission: | 6-speed manual |
| Manufacturer: | SIN Cars |
| Doors: | Butterfly doors |
| Production: | 2015 - present |
| Designer: | Rosen Daskalov |
The SIN R1 is a sports car made by Bulgarian manufacturers SIN Cars. The R1 features an FIA-certified tube frame construction, carbon fiber body and an active rear spoiler. It came with 3 different engine choices – LS3 (6.2-liter N/A V8), LS7 (7.0-liter N/A V8) and a LS9 (6.2-liter supercharged V8). The only transmission offered is a 6-speed manual. The car weighs just and has a top speed of .
The dimensions are L x W x H: x x, with a wheelbase of .
Rosen Daskalov, the founder of SIN Cars & former racing driver, was working with a British business partner at The United Kingdom in 2012, but after a number of disagreements they went their separate ways. Daskalov also moved the company back to his hometown and continued developing the R1.[1]
The R1 series includes 3 models (450, 550 & 650) for road and 2 models (VTX & GT4) for track. The first R1 was revealed in track-only prototype form in 2013 at the Autosport International show. In 2014, a road-going prototype was shown. The R1 will be produced no more than 20 models annually. It is built around a strong, heavy and relatively easy-to-make tubular spaceframe chassis, not a carbon fiber monocoque. Nonetheless the car is still light at around .[2]
There are 3 different engines - LS based GM small-block engine (6.2-liter N/A V8, 7.0-liter N/A V8 & 6.2-liter supercharged V8) for choices.[3] [4] The 7.0-liter naturally aspirated engine tested here has its pistons and bearings replaced with high-performance items. A dry sump lubrication system is better fitted for track driving, which means the engine can be positioned lower in the chassis – and it uses a bespoke, part-titanium exhaust.
The bodywork of R1 is all carbon and the rear wing is active. The brakes are supplied by AP Racing and the dampers by Öhlins. For the suspension, it uses double wishbones all around with in-board mounted springs and dampers, racing car style. A sequential paddleshift gearbox and a traditional six-speed manual can be chosen freely, and there’s a limited-slip differential.[5]
| Type R | 2,330 cc (2.4L; 175.0 cu in) | 2.60 in (220 mm) bore and 4.23 in (100mm) stroke | 11.9:1 | Turbocharger | 999 bhp(876 kW)/10000 | 675(324 lb•ft) | 2.9 sec | |
| LS3 | 6,162 cc (6.162 L; 376.0 cu in) | 4.06 in (103 mm) bore and 3.62 in (92mm) stroke | 10.7:1 | N/A | 450 bhp(335 kW)/5900 | 585(424 lb·ft) | 3.9 sec | |
| LS7 | 7,011 cc (7.011 L; 427.8 cu in) | 4.125in (104.775mm) bore and 4.00in (101.6mm) stroke | 11.1:1 | N/A | 530 bhp(395 kW)/6300 | 650(452 lb·ft) | 3.5 sec | |
| LS9 | 6,162 cc (6.162 L; 376.0 cu in) | 4.06 in (103 mm) bore and 3.62 in (92 mm) stroke | 9.1:1 | supercharged | 650 bhp(484 kW)/6300 | 820(604 lb·ft) | 3.0 sec |