GeigerCars Pushes Dodge Viper GTS to 710 PS with Engine and Suspension Upgrades
Munich-based GeigerCars has tuned the Dodge Viper GTS, raising output to 710 PS and 861 Nm, and fitting a coil-over suspension and carbon-fibre aero kit.
GeigerCars has taken the already potent Dodge Viper GTS and delivered a suite of upgrades that push its naturally aspirated 8.4-litre V10 to 710 PS at 6,100 rpm and 861 Nm at 5,500 rpm. The Munich tuner’s modifications include a revised airbox, custom exhaust system, sport catalysts and a recalibrated ECU. The result is a Viper that accelerates from 0 to 100 km/h in 2.9 seconds and reaches a claimed top speed of 341 km/h.
Engine modifications and performance
The standard Viper GTS leaves the factory with 649 hp and 814 Nm, but GeigerCars’ package takes the American V10 to new heights without resorting to forced induction. The engine’s power increase comes entirely from breathing and fuelling changes. The new airbox and exhaust, combined with sport catalysts, allow improved airflow, while the ECU remap optimises ignition and fuelling for the new hardware. The result is a 61 PS and 47 Nm gain over the factory figures.
Despite the substantial increase in output, GeigerCars has not fitted a turbo or supercharger, keeping the Viper’s character intact. The performance figures put it on par with some of the quickest supercars of its era, though the Viper remains resolutely rear-wheel drive and manual, with no electronic driver aids beyond ABS.
Chassis, suspension and aerodynamics
To handle the extra power, GeigerCars has installed a KW Variant 2 coil-over suspension kit. The new setup lowers the ride height by around 30 mm and features 16-step adjustable rebound damping. This improves grip and allows the driver to tailor the car’s handling for road or track use. Tyre sizes are 295/30ZR18 at the front and 355/30ZR19 at the rear, maximising traction for hard launches.
Visually, the Viper receives an in-house carbon-fibre aerodynamic kit. This includes a front spoiler lip, a rear spoiler and an apron insert with diffuser. The package is subtle by tuning standards, retaining the car’s original silhouette but promising improved high-speed stability.
