Garrett G25-550: The Perfect Turbo For The SR20 Engine. Could the G25-550 be the best turbo for the SR20DET engine platform for drift cars looking for 400 horsepower and instant spool? Read more about the test performed by Speed Academy.

A clean-slate ball bearing turbo with state-of-the-art aerodynamics, this turbo is more compact yet outflows all comparable products on the market. New compressor and turbine aero combined with exotic high-temperature alloys allowed engineers to push the limits of performance.

This article will describe parts of the compressor map, how to estimate pressure ratio and mass flow rate for your engine, and how to plot the points on the maps to help choose the right turbocharger.

Below is a list of compressor maps for the Garrett® turbochargers: G Series. G25-550 G25-660 G42-1200C G42-1200 G42-1450. Gen2 GTX

Ridiculously Quick Spooling! ATP Turbo is now shipping G25-550 and G25-660 Internally Wastegated Turbos.

Upgrade to the Garrett G25-585 Gen II turbo—compact, fast-spooling, and packing next-gen aero for more power and airflow Experts in Turbocharging since 2003 ... G25-585 48MM COMPRESSOR MAP. Available in standard rotation and reverse rotation options for applications with installation restrictions. The max turbo speed is 185krpm and the max ...

G Series turbochargers feature the latest innovations in turbocharger technology. Advanced compressor and turbine aero offer enthusiasts a wide range of performance boosting solutions for 2.0L - 8.0L engine platforms.

Mar 4, 2025 · This means more power, better performance, and increased efficiency, especially at peak turbo RPM and pressure ratio. Key Features: • Available in sizes: G25-585, G25-700, G30-700, G30-825, G35-900 • New compressor aero technology increases power and performance. • Direct upgrade path for Gen I customers with just a CHRA purchase.

Read About Turbo System Optimization: A guide to setting up your turbocharger; The maximum power stated for each turbocharger has been calculated based strictly on choke flow of the compressor map (total turbo capability), which represents the potential flywheel power.

garrett® g25-550 horsepower: 300 - 550 displacement: 1.4l - 3.0l features: compressor map exhaust flow chart garrett® g series compressor aerodynamics for maximum hp fully machined speed sensor and pressure ports new turbine wheel aero constructed of mar-m alloy rated for up to 1050° c stainless steel wastegated and non wastegated turbine