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AMR500 Roots-Type Mechanical Supercharger Compatible with 1.0L-2.2L Naturally Aspirated Engines | 500cc/Rev Belt-Driven Air Compressor | V-Pulley Included | Custom Installation & Tuning Required

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Availability: 16 left in stock
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Arrives Tuesday, Apr 21
Order within 3 hours and 33 minutes
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Features

  • ROOTS-TYPE MECHANICAL SUPERCHARGER Belt-driven positive displacement blower using twin-lobe rotary design (commonly called "Roots-type") for instant low-RPM torque response. Delivers 500cc of forced air per revolution. Ideal for enthusiasts seeking linear power delivery.
  • COMPATIBILITY & REALISTIC PERFORMANCE Compatible with 1.0L2.2L naturally aspirated gasoline engines. Optimal efficiency: 1.0-1.6L (3-6 psi typical boost). 1.8-2.2L applications may see modest gains (2-4 psi) and require higher pulley ratios + professional tuning. Results vary by engine condition, fuel system, and ECU calibration.
  • PROFESSIONAL INSTALLATION ESSENTIAL Includes: AMR500 supercharger housing, internal timing gears, pre-mounted V-pulley. Does NOT include: mounting brackets, drive belts, intake piping, fuel upgrades, or tuning tools.
  • DURABLE ALUMINUM CONSTRUCTION Die-cast aluminum housing with integrated cooling fins for optimal heat management. Internal components use hardened steel with specialized coating for wear resistance. Total weight: ~6kg for minimal impact on engine balance
  • IMPORTANT USAGE NOTICE Mechanical supercharging may increase fuel consumption under equivalent driving conditions. This component is designed for off-road, track, or enthusiast builds. We recommend verifying local vehicle modification guidelines before installation. Professional consultation is advised to ensure proper integration with your specific engine setup.

Description

b>AMR500 Roots-Type Mechanical Supercharger Component for Custom Forced Induction Builds WHAT IS A ROOTS-TYPE SUPERCHARGER? The AMR500 features the classic Roots-type (twin-lobe rotary) design, a positive displacement air compressor invented in 1860 and now a generic term for this technology. Unlike exhaust-driven turbochargers, it connects directly to the engine crankshaft via belt, delivering instant boost without turbo lag. Best suited for low-to- mid RPM torque improvement in naturally aspirated engines. MATERIALS & ENGINEERING DETAILS Housing: Die-cast A356-T6 aluminum alloy with integrated cooling fins Lightweight design (~6kg total weight) reduces front-end engine load Superior thermal conductivity (3x steel) for efficient heat management Precision casting ensures consistent rotor clearance for optimal efficiency Internal Components: Hardened alloy steel rotors and timing gears Special anti-wear coating extends service life under high-load conditions Precision- machined lobes maintain consistent airflow across RPM range Balanced assembly minimizes vibration at operating speeds (up to 12,000 RPM) Lubrication System: Dedicated gear oil chamber (40-100ml capacity) Use 85W-90 GL-5 gear oil or manufacturer-approved synthetic fluid Check level every 50-100 operating hours; do not overfill Proper lubrication prevents gear wear and maintains sealing integrity COMPATIBILITY GUIDE Ideal Applications: 1.0L-1.6L naturally aspirated gasoline engines Motorcycle, kart, off-road, or track-focused builds Enthusiasts with access to fabrication tools and tuning expertise Marginal Applications: 1.8L-2.2L engines: Expect 2-4 psi boost; requires higher pulley ratio (2.2:1+), upgraded fuel system, and custom ECU mapping High-mileage or worn engines: Not recommended – increased cylinder pressure may accelerate wear WHAT'S INCLUDED vs. WHAT'S REQUIRED Included in This Package: AMR500 supercharger housing with integrated cooling fins Internal precision timing gears Pre-mounted V-pulley INSTALLATION REALITY CHECK: This is a performance component, not a consumer accessory. Successful integration typically requires: 1. Engine bay measurement and bracket fabrication (CAD/welding skills) 2. Precise belt alignment to prevent premature wear or failure 3. Fuel delivery calibration to match increased airflow (lean condition can cause engine damage) 4. Ignition timing adjustment to prevent detonation under boost 5. Post-install dyno tuning to verify safe air-fuel ratios PERFORMANCE EXPECTATIONS: Typical results with proper installation on healthy 1.0-1.6L engines: Boost Pressure: 3-6 psi (with 1.8:1-2.0:1 pulley ratio) Power Gain: 10-25% wheel horsepower (highly dependent on baseline engine state and supporting mods) Fuel Consumption: +15-30% under equivalent driving conditions Throttle Response: Noticeably improved low-RPM torque IMPORTANT USAGE NOTICE Mechanical supercharging may increase fuel consumption under equivalent driving conditions. This component is designed for off-road, track, or enthusiast builds. We recommend verifying local vehicle modification guidelines before installation. Professional consultation is advised to ensure proper integration with your specific engine setup.

Manufacturer: ‎GJAUTOPARTS


Brand: ‎GJAUTOPARTS


Model: ‎Supercharger


Item Weight: ‎13.41 pounds


Package Dimensions: ‎11.26 x 9.96 x 9.25 inches


Item model number: ‎AMR500


Manufacturer Part Number: ‎AMR500


OEM Part Number: ‎AMR500


Date First Available: June 8, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Rotor gears slip causing lock up
I installed the supercharger on a small engine and am under driving it by 50% which means its only seeing 2000 RPMs. It lasted about 45 minutes then locked up. Upon further investigation I found the rotors were going out of time. The driven timing gear is slipping on the shaft. I marked both shafts and it showed it was turning on the shaft. NOT A GOOD PURCHASE IT SEEMS. ... show more
Reviewed in the United States on November 27, 2024 by Ken Boeve Ken Boeve

  • Easy to use
Product worked amazingly. It was easy to install compared to most other superchargers. I also found it was really convenient for its sizing especially in a tight and small to fit areas. I wish they had a adapter to fit the inlets and outlets other than that great products. Make sure you fill the gear oil before you use it. ... show more
Reviewed in the United States on May 7, 2024 by Ethan

  • Junk
I had 2 of these things run for 15 mins and lock up so I gambled on a 3rd it also lasted 15-20 mins and locked up Save your headache and don’t do it It was 15 mins of idle time never even got to drive the car
Reviewed in the United States on April 17, 2024 by Tashia S. Tashia S.

  • Interesting toy add-on
I don't know how much boost it's actually able to make nor how long it will last. But, I will say that it will wake up a small motor. Its not the easiest thing to mount nor plumb ducting and it doesn't appear to be high quality. Despite this, if you adjust your carburetor right and can figure out how to mount it, it will make your ride more fun. ... show more
Reviewed in the United States on November 5, 2024 by Stacy A.

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