Is the GTX3582R Gen II Assembly Kit in 1.01 A/R meant for large engines?

Mostly, yes. The 1.01 A/R is the largest V-band housing Garrett lists for the GTX3582R Gen II Assembly Kit, and it reduces backpressure at high rpm. It suits engines toward the 4.5L end of the range Garrett gives, and high-revving builds focused on peak power more than early boost.

Can a 1.01 A/R housing work on a smaller engine?

It can, on a high-rpm build where the engine spends most of its time near the top of the rev range, but boost will arrive later than with the 0.61 or 0.83 A/R. For a street engine under 3.0L, a smaller housing usually gives a more usable power band.

How much horsepower can the GTX3582R Gen II make?

Garrett quotes 450 to 900 horsepower for engines from 2.0L to 4.5L. The quote is calculated from compressor choke flow, the total capability of the turbocharger, and represents potential flywheel horsepower. Results depend on the modifications and calibration of the engine it is fitted to.

Super core 851154-5004S with compressor housing, turbine housing kit 740902-0031 in 1.01 A/R V-band, and a gasket kit, packed in separate boxes. The installer joins the housing to the core. Garrett lists this super core as the replacement for the earlier 836047-5002S.

What speed sensor fits?

The Garrett GT and GTX speed sensor kit, sold separately, threads into the machined port on the Gen II compressor housing once the factory plug is removed with a 5mm Allen key. Garrett lists 130,000 rpm as the maximum allowable speed, and the sensor lets the tuner log it.

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Description

Garrett GTX3582R Gen II Assembly Kit, 1.01 A/R V-Band Free Float

Garrett’s GTX3582R Gen II Assembly Kit with the 1.01 A/R V-band housing is the free-flowing end of the GTX35 Gen II V-band range, joining super core 851154-5004S to GT35R turbine housing kit 740902-0031. With a 66mm compressor Garrett rates at 450 to 900 horsepower on 2.0L to 4.5L engines, this housing lets a large six, a small V8 or a high-rpm build approach the top of that rating without the turbine side holding it back. It runs with an external wastegate on a V-band manifold. For a 2.0L street engine the extra flow comes at too high a cost in response.

Features

Gen II compressor wheel with a 66mm inducer, which Garrett says supports up to 20 percent more horsepower than Gen I
Fully machined speed sensor port, plugged from the factory and opened with a 5mm Allen key
1.01 A/R free-float housing with V-band joints at both ends, clockable to the manifold and downpipe

Specifications

Garrett turbo reference: 6662
Compressor inducer and exducer: 66mm and 82mm
Turbine inducer and exducer: 68mm and 62mm
Turbine housing: 1.01 A/R, V-band inlet and V-band outlet
Wastegate: External (free float)
Bearing system: Dual ceramic ball bearing, water-cooled center housing
Maximum turbocharger speed: 130,000 rpm
Rotation: Standard

What’s Included

GTX3582R Gen II super core 851154-5004S with compressor housing
GT35R turbine housing kit 740902-0031, 1.01 A/R, V-band inlet and V-band outlet
Gasket kit

Applications

The GTX3582R Gen II Assembly Kit is not vehicle specific. Garrett sizes it by engine and output:

Engine displacement: 2.0L to 4.5L
Power range: 450 to 900 horsepower (Garrett rating)
Manifold requirement: V-band turbine flange with an external wastegate

Notes

Ships as an assembly kit: super core and turbine housing kit in separate boxes, bolted together by the installer
An external wastegate is required, because this turbine housing has no internal wastegate
The GT and GTX version of the Garrett speed sensor kit is sold separately
Garrett states that running above 130,000 rpm is at the owner’s risk and can cause damage and premature failure
More housing sizes for this core are in the GTX3582R Gen II range

Frequently Asked Questions

Is the GTX3582R Gen II Assembly Kit in 1.01 A/R meant for large engines? Mostly, yes. The 1.01 A/R is the largest V-band housing Garrett lists for the GTX3582R Gen II Assembly Kit, and it reduces backpressure at high rpm. It suits engines toward the 4.5L end of the range Garrett gives, and high-revving builds focused on peak power more than early boost.
Can a 1.01 A/R housing work on a smaller engine? It can, on a high-rpm build where the engine spends most of its time near the top of the rev range, but boost will arrive later than with the 0.61 or 0.83 A/R. For a street engine under 3.0L, a smaller housing usually gives a more usable power band.
How much horsepower can the GTX3582R Gen II make? Garrett quotes 450 to 900 horsepower for engines from 2.0L to 4.5L. The quote is calculated from compressor choke flow, the total capability of the turbocharger, and represents potential flywheel horsepower. Results depend on the modifications and calibration of the engine it is fitted to.
What is included? Super core 851154-5004S with compressor housing, turbine housing kit 740902-0031 in 1.01 A/R V-band, and a gasket kit, packed in separate boxes. The installer joins the housing to the core. Garrett lists this super core as the replacement for the earlier 836047-5002S.
What speed sensor fits? The Garrett GT and GTX speed sensor kit, sold separately, threads into the machined port on the Gen II compressor housing once the factory plug is removed with a 5mm Allen key. Garrett lists 130,000 rpm as the maximum allowable speed, and the sensor lets the tuner log it.

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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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 GTX3582R Gen II Assembly Kit, 1.01 A/R V-Band Free Float [856801-5079S]

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Garrett GTX3582R Gen II Assembly Kit, 1.01 A/R V-Band Free Float

Features

Specifications

What’s Included

Applications

Notes

Frequently Asked Questions

About Garrett

Reviews