57/55 configuration has a 55 mm compressor inducer and 57 mm turbine exducer, Cast aluminum compressor wheel with a power rating of 500 flywheel horsepower max, T3 turbine housing with .63 A/R ratio and 5-bolt exhaust outlet for use with integral wastegate or external wastegate conversion flange, Suitable for small displacement V8 or four and six-cylinder engines as a single turbo configuration, A great foundation for your budget turbo build project Speedway Motors T3/T4 57mm Turbo .63 AR w/ External Wastegate Sku # 91003781 Mfr. Part # 91003781 Condition New Brand Speedway Motors Sold Each Details
- Cast-iron 57mm .63 A/R turbine housing with T3 turbo inlet flange
- T3 5-bolt turbine outlet for integrated wastegate (or external wastegate adapter)
- Aluminum 55mm T4 turbo compressor housing with 3-inch inlet and 2-inch outlet
- Journal bearing center housing with 7/16”-24 oil feed and GT35 oil drain flange
- Rated to 500 flywheel HP and up to 21 psi of boost pressure
- Works well for single turbo four cylinder/inline-six/V6 builds under 3.0L of displacement
- Universal turbo designed for custom fabricated turbo builds
A Cost Effective Solution for Your Budget Turbo Build
Are you looking to add a turbo to your small displacement project build? Perhaps the lure of cheap horsepower can no longer be ignored? Or maybe you’re just looking for a low cost performance upgrade that will give you the performance you’re looking for without the big budget engine build. Whatever the reason, turbocharging has become one of the most popular ways to increase an engine’s horsepower output anywhere from 50 percent or more. Often, with a few supporting components, it isn’t unheard of to make 800 hp or more at the tire with a large single turbo or smaller twin turbos. All you have to do is hit the local cruise night, cars & coffee, or dragstrip to see any number of vehicles, many of them turbo LS swapped, with the turbo hanging off the front of the engine making respectable power.
There are a lot of junk and cheap turbos on the market when it comes to cost effective turbo charging, and we know you work hard for every dollar in your project car budget. This is why Speedway Motors is now offering an extremely budget friendly line of turbo offerings that leaves plenty of change in your budget for supplemental parts such as Intercoolers, Blow Off Valves, Wastegates, and more for the rest of your turbo build project.
A 57mm Turbo Perfect for Small Displacement Builds
We all know that when it comes to performance automotive products, you often get what you pay for, especially when people start talking cheap turbos. If the deal is too good to be true it usually is. Don’t let the great price on our line of turbos give you pause, these turbos are designed to handle your street performance build and can even handle the rigors of autocross, drag racing, and other applications. For those of you with smaller displacement engines, including inline-fours or inline-sixes, V6s, or even small V8s (turbocharged Flathead anyone?) this T3/T4 turbo is a great choice, providing plenty of boost to dramatically increase your engine’s horsepower output.
This 57mm T3/T4 turbo features a fully machined cast iron turbine housing that uses a standard T3 turbo flange inlet and 5-bolt outlet designed for an integral wastegate setup. Or you can bolt on a 5-bolt adapter flange to allow the plumbing of an external wastegate. Fitted between the cast aluminum compressor housing is an oil cooled journal bearing center housing assembly. The cast aluminum compressor housing comes as a 3-inch inlet and 2-inch outlet. Overall size means this turbo will fit in places many larger turbos will not, providing excellent under hood packaging.
The T3 turbo exhaust inlet flange means the turbo will easily mount with a standard Shop T3-Style Turbo Flanges, while the 5-bolt turbine outlet will require a bolt on Bolt-On Wastegate Kit or an V-Band External Wastegate Adapter. The compressor inlet and outlet are slip-on connections that use Hose Couplers and T-Bolt Hose Clamps. The compressor side of the turbo uses 2-Inch Tubing to plumb the outlet to your engine while the compressor inlet will use 3-Inch Tubing or a direct-mount Shop 3-Inch ID Conical Air Filters. The 57/55 turbo size makes great power on most smaller displacement engines, such as inline fours, and inline or V6 engines or small V8s. This is the perfect small engine turbo for a 4 cylinder turbo build that will surprise many enthusiasts. Spool up is quick with the .63 A/R turbine housing and cast compressor wheel.
We Have All the Best Parts to Support Your Custom Turbo Build Plan
We don’t just drop a turbo in your lap and say, “good luck!” No, we have everything you’ll need to build out your turbo build, no matter the chassis, engine combo, power level, or budget. Not to mention that our techs, available to help you with your turbo build dreams, are just a phone call away. Start with our selection of Shop Turbo Oil Feed And Drain Lines And Fittings, offering everything you need to plumb your engine’s pressurized oil to the turbo’s center housing assembly and back to the engine’s oil pan. At the oil pan you’ll need to add an AN -10 AN-10 Weld On Bung.
Lastly, we have everything you need to build out your hot side and cold side systems, including Shop Exhaust Header Flanges for numerous applications, and various diameters of Shop Header Tubing to build your hot side. While Air Intake Tubing, Air Filters, and Intercooler Piping Kit are available to finish your cold side build. In summary, when finances are a concern, you can still make great power with a small displacement engine when you add boost with a great budget T3 turbo from Speedway Motors.
Specs Turbine Housing Inlet Flange T3 Turbocharger Style T3/T4 Hybrid Compressor Housing Included Yes Compressor Housing Material Aluminum Compressor Housing Finish Natural Turbine Housing Included Yes Volute Type Open Scroll Turbine Housing Material Cast Iron Turbine Housing Finish Natural Compressor Wheel Construction Cast Aluminum Compressor Outlet Style Slip-Fit Compressor Outlet Size 2.00" Ported Compressor Housing No Turbine Wheel Exducer Size 57 mm Turbine Housing A/R Ratio 0.63 Turbocharger Bearing Style Journal Bearing Wastegate Type External Oil Flange Standard T3 Drain Wastegate Actuator Included No Turbocharger Cooling Oil Exhaust Adapter Included No Intake Adapter Included No Oil Adapters Included No Notes NOT ROLLER BEARINGS. Sold in Quantity Each Turbocharger Styles T3/T4 Max Horsepower Rating 500 Reviews Came as pictured exactly. Spools quick! Rated by Porter on January 05, 2024
Summary: Spools quick! I used this on my miata track car. Currently running 8psi of boost with this turbo. I have turned it up to 15psi and it held great! Quality is bar none to my older unit that is now in the trash 🗑
Yes, I recommend this product.
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