Supercharger Head Units


Rotrex Superchargers

Bullet is the Australian and New Zealand distributors for Rotrex Superchargers

Rotrex superchargers are the latest in forced induction systems offering high efficiency, compactness, reliability and silent operation. The range consists of the NEW C15, C30, C38 the larger C38 -91/-92 and the much awaited C38R for V8 an race engines.

The Rotrex C15 is the most compact centrifugal supercharger on the market today. Rotrex C15 is a range of centrifugal superchargers for large variety of applications where the compactness is one of the key issues. Countless number of small applications can now be boosted by this very efficient and silent unit. The C15, C30 and C38 cover the market all the way up to the large displacement Australian muscle cars. With the NEW C38R Rotrex Superchargers we are expecting great things.

The installation guide contains general information on how to choose a supercharger for a particular application and other instructions to help you get the best out of your Rotrex.

Refer to the technical datasheets for detail information on the superchargers available within each family and customization possibilities. For further assistance please contact us.

The patented traction drive enables the Rotrex centrifugal supercharger to achieve superior efficiency, reduced emissions, and improved transient response. This allows smaller size, lower noise and less weight than that of competing products for applications within downsized engines, hybrid powertrains, fuel cell applications, performance vehicles and a multitude of additional applications

Technology – Concept

Key to the Rotrex supercharger’s unique compactness, efficiency, low noise and reliability is its state of the art traction drive technology.

Great speeds and low noise are just some of the advantages of traction drives over traditional gear transmissions. Traction drives transmit power through friction forces between its rolling elements.

Design & Production

The traction technology inside every Rotrex supercharger demands extremely accurate components and assembly. The manufacturing of our superchargers is therefore highly developed, involving efficient quality control and supply chain management.

The Rotrex patented traction drive uses an elastic annulus with a small pre-span to secure contact between the roller planets and the sun shaft with a reasonable force. The patented “ramp effect” increases efficiency and reliability in the transmission by regulating the torque transfer capability on demand through self-adjusting planet geometry.

To enhance performance, the Rotrex traction drive uses a special traction fluid. These fluids are a new family of synthetic hydrocarbon oils and greases offering a series of unique performance advantages. Developed specially for its use in Rotrex superchargers, the SX100 momentarily increases viscosity under high surface pressure, enhancing the traction drive performance by securing the optimum friction between rolling elements while cooling and protecting the system.

This traction drive combined with the latest technology in centrifugal compression, characterized by high adiabatic efficiency and low noise, gives Rotrex superchargers an exceptional competitive edge over any other forced induction solution.

Rotrex Supercharger Prices

Range Power Range Australian Price $AUD
 C15 Range  68HP to 238HP $2790
C30 Range 160HP to 430HP $2990
C38 Range 270HP to 620HP $3290
C38 -91 & -92 380HP to 720HP $3690
New C38R-112 (Requires Special 10rib Pulley) 450HP to 900HP $4190

Rotrex Drive Pulleys (8 rib)

Sizes Available:
70, 75, 80, 85, 90, 95, 100, 105, 110

Price AUD


8 rib Steel or 7 rib Alloy

add $100 for 10 rib

C38R Drive Pulleys (10 rib)

Sizes Available:
75, 80, 85

Rotrex SX150

Traction fluid 1L


Also available in 180ml


Oiling Kit

Parts included:
Oil Reservoir and brackets Magnetic Oil Filter
Oil Lines, fittings and clamps

Price AUD


Oil cooler not included

See available sizes

Separate oil cooler is required for all applications, we offer a choice of oil coolers below.

Oil Coolers

Product Australian Price $AUD
C8 and C15 PWR Coolers $129
C30 PWR Cooler $149
C30 PWR Cooler $169
C38 PWR Cooler $169
C38 – 91 and 92 Cooler $249
Magnetic Oil Filters $66
1 Litre of Genuine Rotrex Oil $185

For technical datasheets including drawings and individual compressor maps, please click on the PDF files below

Supercharger Kits Offered by Bullet powered by a Rotrex Supercharger:

  • BMW Z4 Rotrex Supercharger Kit
  • Holden Commodore Ecotech V6 Rotrex Supercharger Kit
  • Mazda MX5 1800 Rotrex Supercharger Kit
  • Toyota Hilux 1GRFE 4 litre V6 Rotrex Supercharger Kit
  • Toyota FJ Cruiser 1GR-FE V6 Rotrex Supercharger Kit
  • Ford Falcon  4 litre – EL, AU, BA, BF Rotrex Supercharger kits
  • Ford Territory 4 litre Rotrex Supercharger kit
  • Nissan 350Z street and racing supercharger kits
  • Mitsubishi Magna 3.5 litre V6 Rotrex Supercharger kit
  • Subaru Impreza 2.0 litre and VVTi Rotrex Supercharger kits
  • Suzuki Jimny 1300 and 1500 K15B

Bullet is always on the lookout for new vehicles to develop Rotrex Supercharger Kits for. If you can spare your car for a few weeks for a custom kit to be fabricated, please contact us to see if your car is suitable.

DIY (Do It Yourself) Supercharger Kits

The DIY kits were introduced to cater for the workshop or installer who wants to design their own intercooler and piping setup, but doesn’t want to have to design complicated Supercharger mounting bracketry. This alleviates the need for costly laser aligning tools to make sure the drive belt is tracking correctly as well as the hassle of getting brackets designed and laser cut.

All DIY kits are initially designed on vehicles before being accurately drawn on the latest Engineering programs and perfected by our in-house design team. The kit is then put through its paces in both dyno tuning and on road testing before being released to the public.

The basic components of the DIY kits are:

  • Rotrex Supercharger (correctly sized for the engine application)
  • Oiling kit and Oil Cooler
  • Supercharger drive pulley
  • Supercharger mounting bracketry
  • Drive Belt
  • Drive belt tensioner setup (if needed)
  • Additional crankshaft drive pulley (if needed)
  • Associated fasteners

Individual Rotrex Superchargers are also available for those installers who would like to design the entire kit themselves.

Interested in a DIY Kit?

Call us on 61 7 3382 0018 or Email us on