Description
The Comp Turbo CT4R-5858 Dynamic 360° Journal Bearing Turbocharger is designed to deliver reliable performance, quick boost response, and long-term durability for street and track applications. Rated to support up to 700 horsepower, this turbocharger utilizes a proven 360° journal bearing system that provides cost-effective performance without sacrificing reliability.
Featuring a CTR billet aluminum 7+7 extended tip compressor wheel and a high-flow Inconel 713C turbine wheel, the CT4R-5858 offers efficient airflow and consistent power delivery across a wide operating range. Its fully rebuildable and upgradeable construction ensures long service life, making it an excellent choice for high-performance builds requiring flexibility and strength.
Each turbocharger is built to order by Comp Turbo and is backed by a comprehensive 2-year warranty, ensuring confidence in demanding performance environments.
Key Features
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360° journal bearing system for durable and cost-effective performance
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Suitable for street and track use
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CTR billet aluminum 7+7 extended tip compressor wheel
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58mm compressor inducer
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Inconel 713C high-flow 10-blade turbine wheel
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58mm turbine exducer
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Titanium bullet nose nut
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Fully rebuildable and upgradeable design
Performance Specifications
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Minimum horsepower: 445 HP
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Maximum horsepower: 700 HP
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Minimum engine displacement: 2.0L
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Maximum engine displacement: 3.5L
Compressor Housing Specifications
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Inlet size: 4 inches
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Outlet size: 2.5 inches
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A/R ratio: 0.70
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Pressure port: 1/8 NPT
Compressor Wheel Specifications
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Compressor inducer: 58mm
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Compressor major diameter: 76mm
Bearing Housing Specifications
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Oil feed: 1/8 NPT female
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Oil drain flange threads: 8mm x 1.25
Turbine Wheel Specifications
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Turbine inducer: 65mm
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Turbine exducer: 58mm
Fitment
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Universal performance turbocharger
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Compatible with gasoline engines ranging from 2.0L to 3.5L
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Designed for builds targeting 445–700 horsepower
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Suitable for custom street and track applications
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Professional installation and proper tuning required
2-Year Warranty
All Comp Turbo turbochargers include a 2-year warranty.
What’s Covered
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Defects in materials and workmanship
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Repair or replacement during the warranty period at no additional cost
Warranty Terms
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Warranty valid for two years from the purchase date
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Applies to turbochargers used with proper maintenance and operating conditions
Comp Turbo stands behind every turbocharger with a commitment to quality, performance, and customer satisfaction.
To ensure the highest quality, Comp Turbo kits are built to order. Most orders will take 3-5 weeks to ship but some kits can take longer. Once you place your order, the order will not be cancellable for any reason.
