Car-company intelligence is way more reliable than that of our national government, so the Deciders at Dodge have known with absolute certainty that the Bow-Tie Boys have been hard at work on a whopper of a WMD for a couple years. So they’re launching a preemptive strike with their own Weapon of Mass Displacement — a significantly revised V-10 packing a nice round 600 horses and 560 pound-feet of torque, and all of ‘em SAE certified. So where’d they find an extra 90 horsepower and 25-pound-feet?
CamInCam-in-Block
Dodge and the SRT gang have managed the seemingly impossible — variable exhaust-valve timing in a single-cam engine. The system is trademarked CamInCam, which aptly describes how it works. The assembled cam consists of a tube onto which the four double-lobe intake cams are press-fit. In between them, the exhaust cams are pinned, through slots in the main tube, to a second concentric rod. An off-the-shelf hydraulic cam phaser from INA can rotate this inner rod by up to 45 degrees relative to the intake-cam tube, but the Viper is currently only utilizing 40 degrees of that range. Minimal valve overlap makes for smooth, quiet idle and clean emissions, while big overlap boosts power when the hammer’s down. Between idle and 3000 rpm, depending on throttle position, the overlap increases to the maximum amount. The system is less expensive than two or four cam phasers on a DOHC engine, so expect to see this technology spread among other high-end OHV engines.
| Chassis | |
| Brakes F/R: | ABS, vented disc/vented disc |
| Tires F-R: | 275/35 ZR18 – 345/30 ZR19 |
| Driveline: | Rear Wheel Drive |
| Engine | |
| Type: | V10 |
| Displacement cu in (cc): | 510 (8354) |
| Power bhp (kW) at RPM: | 600(450) / 6100 |
| Torque lb-ft (Nm) at RPM: | 560(760) / 5000 |
| Redline at RPM: | 6250 |
| Exterior | |
| Length × Width × Height in: | 175.6 × 75.2 × 47.6 |
| Weight lb (kg): | 3450 (1565) |
| Performance | |
| Acceleration 0-60 mph s: | n.a. |
| Top Speed mph (km/h): | n.a. |
| Fuel Economy EPA city/highway mpg (l/100 km): | n.a. |
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