How much horsepower is the G47-1850 Super Core rated for?

Garrett rates it at 975 to 1850 horsepower on engines from 2.5L to 10.0L. The figure comes from the choke flow of the compressor map and represents potential flywheel horsepower, so the turbine A/R, fuel, boost and calibration decide where a given engine ends up inside that range.

What separates the G47-1850 from the G47-1650?

The inducer. The G47-1850 uses an 88mm inducer with a 120mm exducer, against 80mm on the G47-1650, while the 93mm turbine is shared. Garrett raises the rating to 1850 horsepower and the lower bound to 975, and gives it the same 93,000 rpm limit as the 120mm G47-1650.

Is the G47-1850 too big for my engine?

It may be. Garrett starts its rating at 975 horsepower, so an engine that will never make that much is better served by a smaller G47 or a G45. The G47-1850 Super Core suits large displacement engines with the fuel system and boost to reach well beyond 1500 horsepower.

Which turbine kits fit?

Garrett lists four G47 turbine kits in 0.96, 1.08, 1.23 and 1.39 A/R. Each has a T6 undivided inlet, a V-band outlet and a free-float layout that needs an external wastegate. On a core this large, the 1.23 and 1.39 A/R housings suit the big, high-rpm engines it is built for.

What is the max speed for this core?

Garrett lists 93,000 rpm as the maximum allowable turbocharger speed. Operating above that is at the risk of the owner and can cause damage and premature failure. Garrett suggests a speed sensor mounted in the compressor housing to watch shaft speed, and the sensor kit is sold separately.

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Description

Garrett G47-1850 Super Core, 88mm Compressor Standard Rotation

Garrett’s G47-1850 Super Core is the largest compressor on the G47 frame, an 88mm inducer and 120mm exducer wheel at 54 trim on the 93mm G-Series turbine, rated at 975 to 1850 horsepower on 2.5L to 10.0L engines. The bigger inducer adds 200 horsepower of rating over the G47-1650 on the same turbine, which makes it a fit for large-displacement V8 builds pushing past 1500 horsepower. Below about 1000 horsepower its own rating says it is the wrong choice, and a G47-1550 or a G45 will suit better.

Design and Performance

Garrett credits the G-Series turbine wheel with up to 20 percent more flow and up to 9 percent better spool than the GTX47 Gen II, both estimated from flow, efficiency and inertia. The compressor uses GTX Gen II aerodynamics, the center housing and backplate are a single lightweight aluminum part, and the T6 turbine housing outlet is 17mm shorter than on the GTX.

Features

88mm inducer, the largest compressor Garrett fits to the G47
High flow, high efficiency GTX Gen II compressor aerodynamics
Outline interchangeable with GTX Gen II turbochargers

Specifications

Compressor inducer and exducer: 88mm and 120mm
Compressor trim: 54
Compressor housing A/R: 0.88
Turbine inducer and exducer: 93mm and 88mm
Turbine trim: 90
Maximum turbocharger speed: 93,000 rpm
Rotation: Standard

Applications

The G47-1850 Super Core is not vehicle specific. Garrett sizes it by engine and output:

Engine displacement: 2.5L to 10.0L
Power range: 975 to 1850 horsepower (Garrett rating)
Garrett turbine kits: G47 0.96, 1.08, 1.23 and 1.39 A/R free float, T6 inlet and V-band outlet

Notes

The turbine housing is not included; Garrett sells the G47 turbine housing kits separately
All four G47 turbine kits are free float, so an external wastegate is required
The Garrett speed sensor kit is sold separately
Garrett states that running above 93,000 rpm is at the owner’s risk and can result in damage and premature failure

Frequently Asked Questions

How much horsepower is the G47-1850 Super Core rated for? Garrett rates it at 975 to 1850 horsepower on engines from 2.5L to 10.0L. The figure comes from the choke flow of the compressor map and represents potential flywheel horsepower, so the turbine A/R, fuel, boost and calibration decide where a given engine ends up inside that range.
What separates the G47-1850 from the G47-1650? The inducer. The G47-1850 uses an 88mm inducer with a 120mm exducer, against 80mm on the G47-1650, while the 93mm turbine is shared. Garrett raises the rating to 1850 horsepower and the lower bound to 975, and gives it the same 93,000 rpm limit as the 120mm G47-1650.
Is the G47-1850 too big for my engine? It may be. Garrett starts its rating at 975 horsepower, so an engine that will never make that much is better served by a smaller G47 or a G45. The G47-1850 Super Core suits large displacement engines with the fuel system and boost to reach well beyond 1500 horsepower.
Which turbine kits fit? Garrett lists four G47 turbine kits in 0.96, 1.08, 1.23 and 1.39 A/R. Each has a T6 undivided inlet, a V-band outlet and a free-float layout that needs an external wastegate. On a core this large, the 1.23 and 1.39 A/R housings suit the big, high-rpm engines it is built for.
What is the max speed for this core? Garrett lists 93,000 rpm as the maximum allowable turbocharger speed. Operating above that is at the risk of the owner and can cause damage and premature failure. Garrett suggests a speed sensor mounted in the compressor housing to watch shaft speed, and the sensor kit is sold separately.

About Garrett

Garrett Motion has turbocharged engines since 1955, when its T15 was matched to the Caterpillar D9 crawler, and in 1962 a Garrett turbocharger went into the Oldsmobile Jetfire Turbo Rocket, the first turbocharged production car. Garrett has supplied turbocharging in Formula 1 with Scuderia Ferrari, the FIA World Rally Championship and the 24 Hours of Le Mans. It has operated as a stand-alone company since 2018, and its technology is fitted to around 150 million vehicles worldwide.

Additional Information

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Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Garrett G47-1850 Super Core, 88mm Compressor Standard Rotation [880547-5026S]

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Garrett G47-1850 Super Core, 88mm Compressor Standard Rotation

Design and Performance

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Garrett

Reviews