Viper engine
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| Viper engine | |
|---|---|
 | |
| Overview | |
| Manufacturer | Chrysler |
| Production | 1992-present |
| Layout | |
| Configuration | 90° V10 |
| Displacement | |
| Cylinder bore |
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| Piston stroke |
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| Cylinder block material | Aluminum |
| Cylinder head material | Aluminum |
| Valvetrain | Overhead valve |
| Compression ratio |
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| Combustion | |
| Fuel system | Multi-port fuel injection |
| Fuel type | Gasoline |
| Oil system | Wet sump |
| Cooling system | Water cooled |
| Dimensions | |
| Dry weight |
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The Viper engine is a high-performance 90° V10 engine built by Chrysler for use in the vehicle of the same name.
Production of the V10 engine started at Mound Road Engine before moving to Conner Avenue Assembly, where the Viper itself is built, in May 2001. In addition, the Viper V10 was installed in the Dodge Ram SRT-10, earning the truck the Guinness World Record for fastest production truck (later bettered by an Australian production car; the Holden HSV Maloo that uses the LS2 Corvette engine). The Dodge Tomahawk concept vehicle also uses this engine. Bitter Cars of Germany produced the Bitter GT1 based on the Lotus Elise GT1 using this engine.
The V10 was also sold to British luxury car manufacturer Bristol Cars: the Bristol Fighter was powered by a modified version of the engine which produced 525 hp (391 kW), increasing to 550 hp (410 kW) at high speed due to the ram air effect.[1] In the more powerful Fighter S the engine was tuned to give 628 hp (660 hp at high speed). Bristol had also planned to produce the Fighter T, the V10 would have been further modified and turbocharged to produce 1,012 hp (755 kW) bhp at 5600 rpm, slightly more than the advertised 1,001 hp of the Bugatti Veyron, however Bristol have since stated that no Fighter T models were produced.[2]
First generation
The Viper V10 is based on the Chrysler LA engine family, and appeared with the Dodge Viper in 1992. It was conceived and prototyped as a Magnum 5.9 with two extra cylinders and a longer stroke of 3.88 in (99 mm).
Chrysler engineers revamped Dodge's cast-iron block V10 for the Viper[citation needed] by recasting the block and heads in aluminum alloy. Prototype blocks were cast by Lamborghini, at the time a Chrysler division.
The first-generation Viper V10 engine had a displacement of 8.0 L (488 cu in) and produced 400 hp (300 kW) and 465 lb⋅ft (630 N⋅m).
Second generation
The second-generation engine, also displacing 8.0 L, produced 450 hp (340 kW) and 490 lb⋅ft (660 N⋅m).
Third generation
The third-generation engine, introduced on the 2003 Viper, had a displacement of 8.3 L (507 cu in) and was rated at 510 hp (380 kW) and 535 lb⋅ft (725 N⋅m) after SAE certification in 2006.
Fourth generation
For the 2008 Dodge Viper, the engine's output was increased to 600 hp (450 kW) at 6100 rpm and 560 lb⋅ft (760 N⋅m) at 4900 rpm via a slight displacement increase to 8.4 L (514 cu in) and the use of variable valve timing, among the first utilized in a pushrod engine. The bore was now 4.055 in (103.0 mm), the same as Chrysler's 6.1 L Hemi engine.
Fifth generation
The 2013 SRT Viper kept roughly the same displacement but further boosted power to 640 hp (480 kW) and 600 lb·ft.
See also
References
External links
