Is the GBC35-700 Super Core the same as a Garrett G35?

No. The GBC35-700 Super Core belongs to the Garrett Boost Club Line, which runs a journal bearing rotating group with a 360-degree thrust bearing. The G35 is a separate G-Series design on a ball bearing cartridge. Some distributors shorten the name to G35-700, but the cores and their turbine housings are different families.

How much power can the GBC35-700 support?

Garrett rates it at 400 to 700 horsepower on engines from 2.0L to 5.0L, with up to 68 lbs/min of airflow and a pressure ratio up to 4.1. The rating is calculated from compressor choke flow and represents potential flywheel horsepower, so fuel, intercooling and the calibration set the real ceiling.

Which turbine housing should I pair with this super core?

Garrett lists three GBC35 housings, each free float with a 90mm V-band outlet: 0.82 A/R with a T3 inlet, 0.82 A/R with a T4 inlet, and 0.95 A/R with a divided T4 inlet. Match the inlet to the manifold flange, and use the divided housing only with a divided manifold.

Why choose a journal bearing core over a ball bearing core?

Mostly cost. Garrett positions the Boost Club Line as a high performance journal bearing product in a cost effective price range, pairing modern compressor aerodynamics with a proven bearing system. A ball bearing GTX core costs more and is the better pick when quick transient response matters most to the build.

Can I move from the GBC35-700 Super Core to a GBC37-900 later?

Yes. Garrett states that the GBC35-700 and GBC37-900 are outline interchangeable, so the larger core fits the same general space. The GBC37 uses its own GBC37 turbine housings, so budget for a housing change along with the core when stepping up to the 900 horsepower rating.

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Description

Garrett GBC35-700 Super Core, 58mm Journal Bearing

Garrett’s GBC35-700 Super Core is the 58mm member of the Garrett Boost Club Line, a journal bearing turbocharger family that brings current compressor aerodynamics in below the price of Garrett’s ball bearing ranges. Garrett rates it at 400 to 700 horsepower on engines from 2.0L to 5.0L, with a billet compressor wheel, a 0.72 A/R compressor housing and an oil-cooled center housing. It fits a cost-conscious build on a four-cylinder or six aimed at the middle of that range. A builder who wants the sharpest transient response from a ball bearing cartridge should look at Garrett’s GTX range instead.

Compressor and Rotating Group

The forged, fully machined compressor wheel uses an extended tip design for higher pressure ratios, and Garrett describes the GBC compressor aerodynamics as derived from GTX Gen II. Garrett quotes up to 68 lbs/min of airflow and a pressure ratio up to 4.1. The rotating group runs on Garrett’s latest generation of journal bearings with a 360-degree thrust bearing, and the turbine wheel is Inconel.

Features

Billet compressor wheel with an extended tip design for higher pressure ratios
Machined boost signal port, supplied with the plug installed
Outline interchangeable with the GBC37-900, the larger Boost Club Line core

Specifications

Compressor inducer and exducer: 58mm and 76mm
Compressor trim: 58
Compressor housing A/R: 0.72
Turbine inducer and exducer: 68mm and 62mm
Turbine trim: 84
Bearing system: Journal bearing with 360-degree thrust bearing
Rotation: Standard

Applications

The GBC35-700 Super Core is not vehicle specific. Garrett sizes it by engine and output:

Engine displacement: 2.0L to 5.0L
Power range: 400 to 700 horsepower (Garrett rating)
Garrett GBC35 turbine kits: 0.82 A/R T3, 0.82 A/R T4 and 0.95 A/R divided T4, all free float with a 90mm V-band outlet

Notes

The turbine housing is not included; Garrett lists three GBC35 free-float housings for this core
Every GBC35 housing Garrett lists is free float, so an external wastegate is required
Turn 14 lists this part as the G35-700; Garrett names it GBC35-700, a journal bearing Boost Club Line core that is separate from the ball bearing G35

Frequently Asked Questions

Is the GBC35-700 Super Core the same as a Garrett G35? No. The GBC35-700 Super Core belongs to the Garrett Boost Club Line, which runs a journal bearing rotating group with a 360-degree thrust bearing. The G35 is a separate G-Series design on a ball bearing cartridge. Some distributors shorten the name to G35-700, but the cores and their turbine housings are different families.
How much power can the GBC35-700 support? Garrett rates it at 400 to 700 horsepower on engines from 2.0L to 5.0L, with up to 68 lbs/min of airflow and a pressure ratio up to 4.1. The rating is calculated from compressor choke flow and represents potential flywheel horsepower, so fuel, intercooling and the calibration set the real ceiling.
Which turbine housing should I pair with this super core? Garrett lists three GBC35 housings, each free float with a 90mm V-band outlet: 0.82 A/R with a T3 inlet, 0.82 A/R with a T4 inlet, and 0.95 A/R with a divided T4 inlet. Match the inlet to the manifold flange, and use the divided housing only with a divided manifold.
Why choose a journal bearing core over a ball bearing core? Mostly cost. Garrett positions the Boost Club Line as a high performance journal bearing product in a cost effective price range, pairing modern compressor aerodynamics with a proven bearing system. A ball bearing GTX core costs more and is the better pick when quick transient response matters most to the build.
Can I move from the GBC35-700 Super Core to a GBC37-900 later? Yes. Garrett states that the GBC35-700 and GBC37-900 are outline interchangeable, so the larger core fits the same general space. The GBC37 uses its own GBC37 turbine housings, so budget for a housing change along with the core when stepping up to the 900 horsepower rating.

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 GBC35-700 Super Core, 58mm Journal Bearing [913840-5001S]

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Garrett GBC35-700 Super Core, 58mm Journal Bearing

Compressor and Rotating Group

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Garrett

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