Vortech Superchargers Tuner Kit - V-7 YSi - 50mm Cog - Polished (Carbureted Small Block Chevrolet) 4GP218-068YSi
Polished V-7 YSi 50mm Cog-Drive Tuner Supercharger Kit for Carbureted SBC
The Vortech Superchargers Tuner Kit (PN 4GP218-068YSi) is a no-compromise, race-oriented centrifugal supercharger system engineered for carbureted Small Block Chevrolet engines that demand absolute belt control and extreme airflow capability. This configuration pairs Vortech's flagship V-7 YSi compressor with a 50mm cog drive, delivering consistent power transfer in high-boost, high-RPM competition environments.
This kit is supplied in a show-quality polished finish and is designed strictly as a tuner kit. It does not include a carburetor enclosure box, making it ideal for experienced builders running aftermarket EFI, custom carburetor hats, or alternate induction solutions.
V-7 YSi Supercharger Technology
The V-7 YSi represents the top tier of Vortech centrifugal supercharger technology. Featuring a heavy-duty gear set and a high-efficiency compressor stage developed in Vortech's SAE J1723-compliant test facility, the YSi delivers massive airflow while maintaining up to 78% peak adiabatic efficiency. Reduced heat generation means more usable power, greater durability, and consistent performance pass after pass.
With proper engine internals, fueling, and professional calibration, the V-7 YSi is capable of supporting applications approaching 1,200 horsepower.
50mm Cog Drive for Extreme Boost Applications
This tuner kit utilizes a 50mm cog-drive system, specifically chosen for engines operating at extreme boost levels where conventional belt drives may slip. The cog system provides positive engagement, ensuring reliable boost delivery even under aggressive pulley ratios and sustained high RPM use.
- 50mm cog drive for slip-free power transfer
- Ideal for drag racing and high-output competition builds
- Consistent boost control at elevated RPM
Performance Expectations
- Horsepower Gains: Approximately 30% to over 75% (application dependent)
- Typical Boost: ~8-10 psi at 5,500 RPM on a mildly modified 350ci engine (pulley dependent)
- Maximum Capability: Up to ~1,200 HP with proper supporting components
Tuner Kit Configuration
This is a true tuner kit designed for custom, high-performance builds. Fueling, carburetion, and engine management are left to the installer to allow maximum flexibility.
- Does not include carburetor enclosure box
- Compatible with aftermarket EFI systems
- Designed for custom carburetor hats or bonnets
- Vortech Maxflow Carburetor Enclosure Boxes available separately
Included Components & Features
- Vortech V-7 YSi gear-driven centrifugal supercharger (polished finish)
- 50mm cog drive system components
- Engine oil feed and oil drain assemblies for continuous lubrication and cooling
- Cast aluminum supercharger mounting bracketry with 3/8" nickel-plated steel reinforcement
- Integrated manual tensioner with dual-bearing idler pulley
- Heat-resistant silicone inlet and discharge couplers
- Premium stainless steel clamps
- High-flow, reusable air filter
Installation Notes
- Estimated Installation Time: 6-8 hours
- Universal configuration for carbureted Small Block Chevrolet engines
- Professional installation and tuning strongly recommended
Optional Parts & Accessories
- Cog drive pulley ratios
- 10-rib supercharger drive pulleys
- 10-rib crank pulleys
- Bypass and blow-off valves
- Power steering pump mount assembly
- Vortech Maxflow carburetor PowerHats
- Vortech Maxflow carburetor enclosure boxes
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 4GP218-068YSi
- System Type: Tuner Supercharger Kit
- Engine Type: Carbureted Small Block Chevrolet
- Supercharger: V-7 YSi
- Finish: Polished
- Drive System: 50mm Cog
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- For off-road and competition use only
- Installation on emissions-controlled vehicles driven on public roads may violate U.S. federal emissions law
Fitment
- 1955 Chevrolet Sedan (Bel Air / 210) - Carbureted Small Block Chevy
- 1956 Chevrolet Sedan (Bel Air / 210) - Carbureted Small Block Chevy
- 1957 Chevrolet Sedan (Bel Air / 210) - Carbureted Small Block Chevy
- 1964 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1965 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1966 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1967 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1968 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1969 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1970 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1971 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1972 Chevrolet Chevelle - Carbureted Small Block Chevy
- 1968 Chevrolet Nova / Chevy II - Carbureted Small Block Chevy
- 1969 Chevrolet Nova / Chevy II - Carbureted Small Block Chevy
- 1970 Chevrolet Nova / Chevy II - Carbureted Small Block Chevy
- 1971 Chevrolet Nova / Chevy II - Carbureted Small Block Chevy
- 1972 Chevrolet Nova / Chevy II - Carbureted Small Block Chevy
- 1973 Chevrolet Nova / Chevy II - Carbureted Small Block Chevy
- 1970 Chevrolet Camaro - Carbureted Small Block Chevy (cowl hood)
- 1971 Chevrolet Camaro - Carbureted Small Block Chevy (cowl hood)
- 1972 Chevrolet Camaro - Carbureted Small Block Chevy (cowl hood)
- 1973 Chevrolet Camaro - Carbureted Small Block Chevy (cowl hood)
- 1970 Pontiac Firebird - Carbureted Small Block Chevy (cowl hood)
- 1971 Pontiac Firebird - Carbureted Small Block Chevy (cowl hood)
- 1972 Pontiac Firebird - Carbureted Small Block Chevy (cowl hood)
- 1973 Pontiac Firebird - Carbureted Small Block Chevy (cowl hood)
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with extensive experience supporting extreme Small Block Chevrolet builds. From cog-drive selection to fueling and airflow strategy, our team can help you configure a YSi system that delivers reliable, repeatable power.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
