Garrett G Series | G45-1125 Turbo

Garrett G-Series turbochargers are designed specifically for hard-core enthusiasts who want optimal performance. The forged fully-machined billet aluminum compressor wheels feature next-generation aerodynamics that provides a larger horsepower range and maximize boost response. The G45-1125 in the G45 lineup provides up to 1,150hp to drivers who need a ton of power. If you need more than that, you'll have to go to the G45-1350 or G45-1500.

For all G45s, ported shroud compressor housings increase surge resistance and provide reliable, continuous power throughout the power band. A dual ceramic ball bearing cartridge prolongs the lifespan and improves shaft balance. The water-cooled CHRA keeps housing temperatures to a minimum. The turbine wheel is constructed from Inconel, a Super Alloy that maintains strength during prolonged exposure to high exhaust gas temperatures, that means you can push your car further than ever before and it will keep performing well. 

Featuring the latest advanced ultra high flow aerodynamic designs with the Garrett G Series Turbine Wheel, the G Series models offer previously unobtainable improvements in spool and power levels by frame sizeThe G-Series Turbine wheel is constructed of Mar-M super alloy material. This material is designed to withstand up to 1050° C - that’s 200 degrees more than inconel turbine wheels! The newly engineered turbine wheel with optimized G Series aerodynamics increases flow up to 10% (Compared to GTX Gen II).

An oil restrictor is recommended for optimal performance with ball bearing turbochargers. An oil pressure of 40 – 45 psi at maximum engine speed is recommended to prevent damage to the turbocharger’s internals. In order to achieve this pressure, a restrictor with a 0.040” orifice will normally suffice, but you should always verify the oil pressure entering the turbo after the restrictor to ensure that the components are functioning properly. Recommended oil feed is -3AN or -4AN line or hose/tubing with a similar ID. As always, use an oil filter that meets or exceeds the OEM specifications.

Computer designed and fully CNC machined, the forged G Series compressor wheel and new aerodynamics design increases maximum horsepower output up to +30%. The new aero design increases peak flow and offers higher power levels within a large operating RPM range. 

G Series turbine housings feature standard Garrett stainless steel material. The V-band CHRA to Turbine Housing interface offers a full 360 degree rotation. G45-1125 is offered with stainless steel turbine housings in the below date:

Looking for a way to protect your turbo or exhaust manifold and improve its efficiency at the same time? Our in-house ceramic exhaust coating does both! Available in black or silver, these 2000+ degree ceramic coatings look great and provide an extra layer of protection against corrosion. By coating the exterior surfaces of your turbo hot side or manifold you retain the heat and energy in the exhaust, not in your engine bay. Improving under-hood temps and increasing efficiency with improved turbo spool are great reasons to add these coatings. Please note that ceramic coating is completed in-house and will add an additional lead time of 1-2 weeks to your order.

Looking to ensure you get the perfect turbo for your unique application the first time? Full-Race is here to help. Our customized turbo matching and system integration services use accurate operating parameter plotting to eliminate guesswork and trial and error. As turbocharging continues to grow globally, our unwavering commitment to high standards ensures unrivaled quality, reliability, and performance. Email us at gofaster@full-race.com or call us at (602) 437-2101 to find out how we can help you achieve your goals.