VTS Twin-Screw Supercharger Systems Featuring Lysholm Technology

Vortech Engineering has announced the availability of the Lysholm design VTS Series superchargers featuring Twin-Screw technology. Through an agreement with Lysholm Technologies AB, Stockholm, Sweden, Vortech will distribute automotive systems and tuner kits in the United States, Canada and Mexico. Vortech becomes the only aftermarket manufacturer to offer both centrifugal and twin-screw superchargers.

The patented, VTS twin-screw design provides tire shredding low-end torque as well as far greater efficiency and horsepower gains compared to traditional (and newer) roots-type blowers. Boost levels over 20 PSIG are possible.

Initial vehicle applications include the Shelby GT500, late model GM trucks and SUV's with LS-type V8 motors plus Tuner Kits (without calibration/fuel management) for LS-based Street Rods in 2.3L and 3.3L compressor sizing providing a 40-50%+ increase in power.

Features include a plenum design with increased volume that allows for an unrestricted flow to the intake port plus an oversized dual pass air/water charge cooler (50% more area) for a lower discharge temperature. The manifold provides for upgrading to the larger 3.3L compressor.

Integrated bypass valve and fuel rail mount positions are provided. Calibration is accomplished through the DiabloSport Predator® hand-held programmer that controls ignition timing and fuel enrichment.

Genuine Lysholm Technology

The twin-screw compressor was created by Alf Lysholm in the 1930s. The Lysholm supercharger of today, designed and first manufactured in 1995, features several patented aspects, including rotor profiles and bearing arrangements.

Multiple OE customers have successfully completed extensive and brutal evaluations of the Lysholm unit prior to their incorporation into their products. Among those companies are Mercury Marine, Ford Motor Company- with its prestigious Ford GT- and Mercedes-Benz, who has licensed this twin-screw technology for its AMG line. The OE process included a durability study where the compressor successfully completed 300 test cell hours at full throttle plus additional tests that proved the increased power and torque would not sacrifice fuel consumption or emissions levels.

The subject of product testing and accurately assessing performance characteristics is paramount to Lysholm’s quality mission. As with Vortech products, Lysholm tests all supercharger products resulting in accurate performance maps. Over the years, OE development engineers have found these maps essential to matching and optimizing supercharger – engine combinations, and obtaining absolute best performance, economy, and durability from their powertrains. Further, cell testing has proven crucial in the product development cycle, as validated by the numerous, patented features and improvements already mentioned. Many would consider this level of testing and availability of performance data to be “standard” for a well-engineered product.

Lysholm quality assurance, assembly techniques and testing have translated well on US highways as documented with a recent application in which a Lysholm Model 1600 compressor logged more than 200,000 miles on a GMC Yukon. The owner was so impressed with the durability and performance of the unit that, when the original engine was replaced, the supercharger was reinstalled and still delivers the boost.

Beware of imitations. Lysholm is the source of the twin-screw, positive displacement compressor technology for automotive and marine applications.