There is an article in the November 2005 issue of Four Wheeler (page 14) about this truck. 155 MPH, 7.0L Supercharged Corvette C6 Motor
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Geiger H2 7.0 Kompressor [Posted : 10. July 2005]
A top speed of 250 km/h: The world's fastest Hummer comes from Geiger Performance. The leading European tuner of American automobiles equips the SUV with a 7.0-liter V8 supercharged engine delivering a maximum power output of 700 HP (515 kW) and a peak torque of 904 Nm.
Added to that is an exclusive Geiger Performance luxury equipment package with 28-inch chrome wheels, sport suspension, high-performance brake system, pearl-effect special paint and an exclusive interior complete with multimedia system.
To make the Hummer H2 the fastest of its kind the specialists at Geiger Performance replace the standard 6.0-liter engine with a V8 from the current Corvette C6, albeit with a bored-out displacement of 7,011 cc. Numerous additional modifications such as precision-machining the two cylinder heads, the installation of a sport camshaft and a reinforced valvetrain are also part of the Geiger Performance power treatment as is a cogged-belt driven supercharger with high-capacity intercooler. A fully stainless-steel high-performance exhaust system with high-performance manifold and metal catalysts completes the engine conversion.
With these modifications the supercharged eight-cylinder engine produces a maximum power output of 700 HP (515 kW) at 5,500 rpm and a peak torque of 904 Nm at 4,260 rpm. Power is transferred to all four wheels via a modified four-speed automatic transmission. Despite a curb weight of 3.1 metric tons the Hummer H2 7.0 Kompressor from Geiger Performance achieves performance on the level of a purebred sports car: The sprint from 0 - 100 km/h takes just 6.5 seconds, top speed is electronically limited to 250 km/h.
Performance such as this necessitates numerous Geiger Performance modifications to the suspension. Immediately eye-catching are the king-size 10Jx28 forged one-piece chrome wheels with size 325/35 R 28 tires.
For additional information please visit
http://www.GeigerCars.de.
http://www.carnews.nu/car-news.php?name=News&file=article&sid=395] </div></BLOCKQUOTE>