Air and Fuel› Superchargers, Turbochargers and Components

Speedway Motors

T3/T4 57mm Turbocharger

$324.99

SKU: 91003781

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Special Order
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$100 Minimum Order
30 Days Return
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Overview

The Speedway Motors T3/T4 57mm Turbo is a turbocharger designed for performance applications. It features a 57mm turbine exducer and a 55mm compressor inducer, providing a balance for various engine builds. The cast aluminum compressor wheel is rated for a maximum of 500 flywheel horsepower.
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The Speedway Motors T3/T4 57mm Turbocharger is engineered for enhanced performance, featuring a 57mm turbine exducer and a 55mm compressor inducer. This configuration allows for a responsive spool and is capable of supporting up to 500 flywheel horsepower, making it a solid choice for custom track car builds and performance modifications. Constructed with a cast aluminum compressor wheel and a T3 turbine housing, this turbocharger boasts a .63 A/R ratio. The turbine housing also includes a 5-bolt exhaust outlet, designed for compatibility with its integral wastegate or an external wastegate conversion flange. Journal bearing style ensures durability for performance applications. Reviews indicate that customers appreciate the superior quality and quick spooling capabilities of this turbocharger, noting its ability to hold up to 15psi of boost. While most users report improved and trustworthy performance, some isolated instances of initial hardware condition issues, such as frozen bearings, have been mentioned. Despite these rare occurrences, the product is generally recognized for its reliable performance enhancements over previous models.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandSpeedway Motors
Part Number91003781
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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