GARRETT® G25-660 Turbo Assembly Kit
The newest turbocharger from Garrett ® GT25-660. The G-Series G25-550 and the G25-660 turbochargers are compatible with 1.4L - 3.0L engine displacements and capable of producing up to 550 and 660 horsepower respectively. G Series 25 turbochargers are smaller and out-flow all comparable products on the market.
New compressor and turbine aero combined with high temperature resistant materials allowed engineers to push the limits of performance. The GT25-660 is a clean-sheet product with many new features geared towards enthusiasts.
A new name designates a new generation of industry leading technology and innovation. Understanding the Name: G25-550 || G25-660
G designates 81 years of Garrett® heritage.
25 classifies the size of the frame. The remaining 3 digits identify the max horsepower rating of the turbocharger. (ie 550)
- 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 1055°C
- STAINLESS STEEL WASTEGATED AND NON WASTEGATED TURBINE HOUSING OPTION CAPABLE OF 1050°C
- OIL RESTRICTOR AND WATER FITTINGS INCLUDED
- WASTEGATED TURBINE HOUSINGS DO NOT INCLUDE ACTUATOR ASSEMBLY KIT.
A brand new high horsepower turbine wheel flows exhaust gasses at a higher, more efficient rate than other GT and GTX turbine wheel designs. The new turbine wheel design allows for higher exhaust gas flow which increases aerodynamic efficiency compared to the previous design. New hi-flowing, stainless steel turbine housings help decrease backpressure and range in size from 0.83, 1.01, and 1.21 A/R. These compact turbine housings are unique only to the GT25-660 and GT25-550 meaning they are not interchangeable with other GT/GTX35 products because of the new turbine wheel.
A new ten-blade GTX Gen II compressor wheel designed using proprietary Honeywell computer simulation software gives the GT25-660 the ability to create more air mass flow, allowing the enthusiast a wider range of power output when tuning the vehicle. A larger, 0.72 A/R compressor housing allows the compressed air flow to circulate into the engine more efficiently than other mid-frame turbochargers. The 8mm dual ceramic ball bearing cartridge provides optimal turbo response and reliability through its reduction in shaft motion. V-band and hose connection compressor outlet options are now offered so be careful to select the appropriate part number when ordering.
GT25-660 turbochargers feature a fully-machined compressor inlet, fully-machined compressor outlet, and fully-machined ported shroud.
The new compressor housings are equipped with a fully machined speed sensor port that accepts the Garrett by Honeywell speed sensor (Sold separately). This feature allows tuners to understand existing operating conditions, which is important when fine tuning a turbocharger to its most efficient operating conditions. The speed sensor port comes plugged from the factory and can be removed using a 5mm allen key when ready to install a speed sensor kit.
The GT25-660 turbocharger is sold as an assembly kit meaning the super core and turbine housing is sold as one unit. Determine your compressor A/R to identify the compressor housing you need.
Description: Garrett GT25-660 Turbo Assembly Kit
We can also provide a reverse rotation unit. Please contact us directly for Reverse Rotation.