SKU: 30221219744

Kraftwerks Race Supercharger Kit - B/K-series

Sale price$1391.51 Regular price$1546.12
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Kraftwerks Race Supercharger Kit - B/K-seriesThe Kraftwerks Race Supercharger kits are based off of the impressive Rotrex C30 94 supercharger and require some custom piping and intercooler fabrication for the Honda B series, K series, and L series (honda Fit) engines prior to installation. This kit does NOT include any type of piping, intercooler, or fuel management. This Race Kit produces impressive results throughout the entire power band due to its patented traction drive technology. And,

The Kraftwerks Race Supercharger kits are based off of the impressive Rotrex C30-94 supercharger and require some custom piping and intercooler fabrication for the Honda B-series, K-series, and L-series (honda Fit) engines prior to installation. This kit does NOT include any type of piping, intercooler, or fuel management.

This Race Kit produces impressive results throughout the entire power band due to its patented traction drive technology. And, unlike any other forced induction system, this kit provides a linear power curve, torque on demand, cooler operating temperatures.

This Race Kit provides instant throttle response and a progressive power curve that increases all the way to redline without the typical 'spiking' or 'surging' associated with turbochargers. This unique, more useable power curve results in reduced cylinder pressures, less strain on engine components, and increased reliability. Rotrex superchargers also operate much cooler when compared to turbochargers and other supercharger systems, which reduces the engine’s intake air temperature as well as its risk of detonation.

Rotrex superchargers are renowned for their compact size, high adiabatic efficiency, low vibration, and quiet operation. Their unique traction drive technology is what makes all of this possible, which, unlike other superchargers, transmits power through frictional forces between its rolling elements. Each Rotrex unit features its own self-contained oiling system that remains independent of the engine. Its dual-action oil pump supplies traction fluid to the supercharger while the supplied cooler ensures proper fluid temperatures at all times.

Important Notes

  • Kit REQUIRES custom fabrication for intercooler + piping and engine tuning.
  • Kit REQUIRES removal of A/C compressor and power steering.
  • Kit REQUIRES header that has narrow pairing (MegaPower or Alpha Series Header)
  • Kit is NOT CARB Approved, and is never to be used on pollution controlled vehicles or public highways

    *Total Horsepower will be determined by the engine type and build. The total horsepower depends on engine modifications, tuning, weather, altitude, etc. (Typically +150hp and +80ft/lbs torque)

*Recommended Modifications

  • Upgraded Clutch
  • Engine managment system (ie. Hondata)
  • Grams Fuel Injectors
  • Grams Fuel Pump

Honda B-series Engine Kit Details

The B-Series Race kit fits all B-Series engine blocks and is designed to work on stock engines. This kit does NOT include any type of piping, intercooler, or fuel management.  Includes the following:

  • Rotrex C30-94 Supercharger w/ 120mm Pulley
  • Rotrex Self-Contained Oiling System
  • Oil Cooler
  • High-Quality CNC-machined Brackets, Idler Pulley, and Tensioner
  • High-Quality Metric Fasteners and Hardware
  • Silicone Air Inlet Elbow
  • Double Sided Drive Belt - Works off Stock and Aftermarket Pulleys

Honda K-series Engine Kit Details:

The Kraftwerks offers 2 race kits for the K-series engine (C30 and C38). The C30 kit is capable of making +400HP* and the C38 kit is capable of +550hp*. Both kits fit all K-series engine blocks which installs where the A/C compressor mounts (replacing the A/C compressor).

- Kit REQUIRES Custom Fabrication and Engine Tuning
- Kit REQUIRES removal of A/C Compressor
- Kit is NOT CARB Approved, and is never to be used on Pollution Controlled Vehicles or Public Highways

The K-Series Race Kit fits all K-Series engine blocks and includes 3 supercharger brackets and a C30-94 or Rotrex supercharger. This kit does NOT include any type of piping or fuel management. Includes the following:

  • Rotrex C30-94 Supercharger w/110mm pulley
  • Rotrex Self-Contained Oiling System
  • Oil Cooler
  • Kraftwerks air temperature sensor bung
  • Kraftwerks recirculating bypass valve
  • High-Quality CNC-machined Brackets, Idler Pulley, and Tensioner
  • High-Quality Metric Fasteners and Hardware
  • Installation manual

The K-Series Race Kit can be sized for your particular application. Your build specifications and crank pulley size are required for proper supercharger unit sizing. Please include your build specs, crank pulley diameter, and maximum engine RPM in when ordering.

* Total Horsepower will be determined by the engine type and build. The total horsepower depends on engine modifications, tuning, weather, altitude, etc.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30221219744

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Nicholas Schadewald
Draper, US
★★★★★ 4
Fair Quality, Hour and a half build
Color: Black, Size: 132in-Large Metal Base
Key things: It does (more or less, not completely) fold in on itself, it does block nearly all visibility (especially from an angle), it was only about an hour and thirty minutes to put together, and it is light weight. Do I recommend? Yeah.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2025
S
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Sheddran Smith
Port Orchard, US
★★★★★ 5
Privacy
Color: Black, Size: 132in-Large Metal Base
Great for privacy especially if you have a roommate..
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Reviewed in the United States on May 18, 2026
S
Verified Purchase
Sobhan Putalapattu
Draper, US
★★★★★ 3
Assembly was a bit rough
Color: Black, Size: 132in-Large Metal Base
It is serving the purpose it is bought for. However the assembly was harder than it should have been. Joining the parts A and B (two iron pipes) was very hard. We can't use any tools to do that and it has to be done manually and every joint was very tight and very hard to to do. I had to struggle to make 24 joints for the length I need. At one point I was going to return it, but I needed it very badly so continued with the assembly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2024
E
Verified Purchase
Exelente producto
Grantham, US
★★★★★ 5
Se ajusta perfectamente al lugar que lo necesites
Color: Black, Size: 172in-Large Metal Base
Queda excelente ni tan alto ni tan bajo
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Reviewed in the United States on April 29, 2026
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Verified Purchase
CD
Bozeman, US
★★★★★ 1
Frame too short
Color: Beige, Size: 132in-Large Metal Base
Can’t be assemble due to the frame being too short
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026

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