Tools and Materials Needed

Installing a Garrett GTX3584RS turbo on your Camaro is a rewarding project that demands careful planning and the right components. Begin by assembling everything you’ll need, categorized for clarity. Having these items on hand before you start prevents unnecessary downtime and ensures a smooth installation.

Core Turbo Components

  • Garrett GTX3584RS Turbocharger – This is the centerpiece. Choose the correct turbine housing A/R ratio for your Camaro’s engine size and power goals (typically 0.82 or 0.92 A/R for most 5.3L–6.2L builds).
  • Turbo manifold – A quality stainless steel or cast iron manifold designed for your specific Camaro engine (LS or LT). Avoid thin-wall manifolds that can crack under heat cycles.
  • Wastegate – A 38–44mm external wastegate is recommended to precisely control boost pressure. Match the spring pressure to your target boost level (e.g., 7–10 psi spring for a conservative start).
  • Intercooler – A front-mount air-to-air intercooler sized for 600–800 hp. Core dimensions around 24"x12"x3" work well for most Camaro builds.
  • Silicone couplers and T-bolt clamps – 4-ply silicone, 2.5" or 3" diameter, depending on your intercooler piping kit.
  • Blow-off valve (BOV) – Optional but recommended for rapid throttle closure; a Tial Q or similar works well.

Oil and Coolant Lines

  • Turbo oil feed line – Use a -3 or -4 AN stainless braided line with restrictor fitting (if required by the turbo). Ensure it connects to a pressurized oil source on the engine block.
  • Turbo oil drain line – A -10 AN line with a 5/8" or 3/4" inner diameter. The drain must gravity-feed back into the oil pan above the oil level line.
  • Coolant lines (if using water-cooled center housing) – Many Garret GTX series turbos are oil-cooled only; verify your unit’s requirements. If water-cooled, add 5/16" hose and fittings.
  • Exhaust gaskets and sealing washers – Copper or multi-layer steel gaskets for turbo-to-manifold and downpipe connections.

Tools and Consumables

  • Complete metric and standard socket set – Include deep sockets and extension bars. A 10mm, 13mm, 15mm, 18mm, and 21mm are common.
  • Torque wrench – A 1/2" drive torque wrench capable of 30–80 ft-lb for manifold bolts and drain fittings.
  • Jack stands and floor jack – Safely lift the vehicle; never work under a car supported only by a jack.
  • O2 sensor socket – To remove and reinstall wideband sensors in the downpipe.
  • Fuel injector puller – For upgrading injectors without risk of damage.
  • Anti-seize compound – Apply to all exhaust fasteners for future disassembly.
  • Thread lock (medium strength) – For turbo mounting bolts and wastegate fasteners.
  • Diagnostic tools – Boost gauge, digital multimeter, and a laptop with tuning software (HP Tuners, EFI Live, or Holley EFI).

Preparation Steps

Thorough preparation eliminates surprises. Follow these steps in order to ensure your Camaro is ready for the upgrade.

Disconnect and Drain

  • Disconnect the battery – Remove the negative terminal first, then positive. Isolate the cable end to prevent accidental contact.
  • Drain engine oil and coolant – Remove the drain plug and let oil flow into a catch pan. Drain coolant from the radiator petcock. This prevents spills when removing oil and coolant lines.
  • Remove the stock intake system – Unbolt the airbox, mass airflow sensor, and intake tube. Also remove the factory exhaust manifold and any heat shields that may obstruct access.
  • Remove the catalytic converters or downpipes – If your Camaro is equipped with factory cats, you’ll need to remove them to make room for the turbo downpipe. Consider a full exhaust system upgrade for optimal flow.

Inspect and Clean the Engine Bay

  • Check for oil leaks or coolant leaks – Repair any leaks before the turbo installation; hot turbo oil lines will make small leaks dangerous.
  • Verify engine compression and health – A compression test ensures your engine can handle the added boost. Aim for within 10% across all cylinders.
  • Clean bolt threads and mating surfaces – Use a wire brush and brake cleaner on the cylinder head exhaust ports and turbo manifold flanges.
  • Replace spark plugs – If your Camaro has high mileage, install fresh spark plugs gapped for forced induction (typically 0.028–0.035").
  • Upgrade the cooling system (optional but recommended) – A high-flow water pump, lower temperature thermostat, and larger radiator can help manage the increased heat load.

Installing the Turbocharger

With the engine bay prepped, it’s time to mount the Garrett GTX3584RS. Precision is critical here to avoid exhaust leaks, oil starvation, or mechanical binding.

Mount the Turbo Manifold

  • Apply anti-seize to manifold studs – If your manifold uses studs, coat the threads. If using bolts, use medium thread locker.
  • Position the manifold gasket – Place a new manifold gasket over the studs. Ensure the gasket orientation matches the exhaust port shape (some are directional).
  • Install the manifold – Slide the manifold onto the studs. Tighten nuts in a crisscross pattern to factory torque specifications (typically 25–35 ft-lb for cast iron manifolds). Do not overtighten; warping the flange will cause leaks.
  • Check for clearance – Make sure the manifold does not contact the frame, engine mounts, or steering shaft. If it does, you may need spacers or a different manifold.

Secure the Garrett GTX3584RS

  • Attach the T4 or T3 flanged adapter (if needed) – Most Garretts come with a T4 turbine inlet; if your manifold uses a different flange, install the appropriate adapter with a gasket.
  • Position the turbo on the manifold – Align the turbo center housing so the oil drain port faces downward (typically at a 45-degree angle). Rotate the turbine housing as needed – clocking instructions are in Garrett’s manual.
  • Bolt the turbo to the manifold – Use the provided bolts or studs. Torque to specifications: M8 bolts 18–22 ft-lb, M10 bolts 30–35 ft-lb. Use medium thread locker and a crisscross pattern.
  • Install the wastegate – Mount the wastegate on the wastegate port of the manifold or turbo housing. Use a short, stiff actuator rod. Adjust the rod length so the wastegate valve is closed at rest but not under preload.
  • Connect the wastegate boost reference line – Run a 1/8" vacuum/boost hose from the compressor side of the turbo to the wastegate top port. Keep the hose short (under 12") and secure it away from hot surfaces.

Oil Feed and Drain Lines

  • Install the oil feed line – Use a -3 or -4 AN line from the engine block oil gallery plug to the turbo’s oil inlet. If the turbo uses a restrictor, install it in the oil inlet. Tighten fittings finger-tight plus 1/4 turn (do not overtighten).
  • Attach the oil drain line – The drain line should be -10 AN or larger, routed straight down with no loops or kinks. Use a bulkhead fitting on the oil pan above the oil level. If your pan lacks a bung, you can weld one in or use an adapter. Torque the drain fitting to 15–20 ft-lb.
  • Prime the turbo before first start – Disconnect the coil packs or fuel pump relay, then crank the engine for 10–15 seconds. This pre-lubes the turbo bearings. Reconnect and verify oil pressure.

Intercooler and Piping Installation

A properly sized intercooler and clean piping routing are essential for consistent power and quick spool. Follow these guidelines.

Mount the Intercooler

  • Choose the location – Position the intercooler in front of the radiator and condenser. Most Camaro builds use a 24"x12"x3" core that fits behind the factory front bumper without trimming.
  • Fabricate or purchase mounting brackets – Use steel straps or universal intercooler brackets. Secure the core with heavy-duty zip ties or rubber bushings to reduce vibration.
  • Ensure proper airflow ducting – Seal gaps around the intercooler with foam or aluminum sheeting so air goes through the core, not around it.

Route the Charge Pipes

  • Compressor outlet to intercooler – Use a 2.5" or 3" aluminum pipe with a 45-degree bend to clear the engine accessory drive. Keep the pipe as straight as possible. Use a silicone coupler and T-bolt clamp at each joint.
  • Intercooler outlet to throttle body – Another pipe runs from the intercooler cold side up to the throttle body. Include a blow-off valve flange on this pipe (mount it after the intercooler, before the throttle body).
  • Test fit and adjust – Temporarily install all pipes and couplers. Ensure no pipe contacts sharp edges or hot surfaces. Mark pipe lengths and cut as needed. Reinstall with clamps torqued to 35–45 inch-lb (do not overtighten silicone).

Fuel System Modifications

The increased air flow from the GTX3584RS demands more fuel. Without proper fuel system upgrades, the engine will run lean and risk severe damage. Plan these modifications carefully.

Injector Upgrade

  • Select appropriate injectors – For typical 600–800 hp builds, 80–105 lb/hr high-impedance injectors are common. Choose US-made units from brands like Injector Dynamics, Bosch, or DeatschWerks.
  • Install fuel injectors – Remove the fuel rail, pull old injectors, and install new ones with fresh O-rings. Apply a small amount of fuel-compatible grease to O-rings for easier insertion. Torque fuel rail bolts to 8–10 ft-lb.
  • Scale the injector data in your ECU – Use the injector manufacturer’s flow data (including offset and dead times) in your tuning software. This is critical for proper idle and part-throttle behavior.

Fuel Pump Upgrade

  • In-tank or in-line pump – For most Camaros, a drop-in Walbro 525 or AEM 340LPH pump fits the factory fuel module. For builds over 700 hp, consider a dual-pump setup or a brushless pump like the Hellcat swap.
  • Wiring and relay – Upgrade the pump wiring to 10-gauge with a dedicated relay and circuit breaker. Poor voltage supply is a common cause of pump failure under boost.
  • Fuel pressure regulator – If you’re running an aftermarket return-style system, install a boost-referenced fuel pressure regulator (e.g., Aeromotive A1000-6). Set base pressure to 58 psi (LS engines) or 4 bar (EU).

Fuel Management Tuning

  • Choose a tuning solution – HP Tuners, EFI Live, or Holley EFI are common for LS and LT engines. Have a qualified tuner remap the fuel and spark tables for your new turbo setup.
  • Data logging – After installation, perform several data logs with wideband O2 readings to confirm air-fuel ratio targets (11.5–12.0 at wide-open throttle).

Electrical Connections

Proper electrical work ensures reliable boost control, sensor feedback, and safety. Don’t rush this step.

Boost Gauge Installation

  • Mount the gauge – Install an electronic boost gauge in a visible but unobtrusive pod on the A-pillar or steering column. Mechanical gauges are simpler but risk sending hot air into the cabin.
  • Power and ground – Connect gauge power to a switched 12V source (e.g., fuse box under dash) and ground to a clean chassis point. Use a fuse holder rated for 2A.
  • Signal wire – Route a 1/8" nylon tube from the intake manifold vacuum/boost port to the gauge. Keep the line away from heat and moving parts.

Wideband O2 Sensor

  • Weld a bung in the downpipe – Position it at least 18 inches from the turbo outlet, and at a 10–2 o’clock angle to prevent moisture buildup.
  • Route the sensor wire – Use a shielded 4-pin connector (most wideband controllers use a dedicated harness). Keep the wire away from spark plug wires and alternator noise.
  • Calibrate the sensor – Follow the manufacturer’s instructions for free-air calibration before starting the engine.

Additional Sensors (Optional)

  • K-type thermocouple for EGT – Install a probe in the downpipe or exhaust manifold to monitor exhaust gas temperatures. Target below 1600°F during sustained boost.
  • Oil pressure and temperature sensors – If your Camaro lacks them, add senders for real-time monitoring. Use a dedicated gauge or integrate with your ECU logging.
  • Secure all wiring – Use adhesive-lined heat shrink at connections, and zip-tie harnesses away from exhaust and sharp edges.

Final Checks and Start-Up

Before you turn the key, go through this checklist systematically. A small oversight can lead to expensive repairs.

Mechanical Inspection

  • Verify all bolts are torqued – Manifold, turbo, wastegate, intercooler brackets, downpipe bolts, oil pan drain plug, and fuel rail bolts.
  • Check for clearance – Rotate the engine by hand (using a breaker bar on the crankshaft bolt) to ensure the turbo and piping don’t contact the fan, belts, or steering components.
  • Leak test the intake system – Pressurize the charge pipes to 20 psi with a smoke machine or a boost leak tester. Listen for hissing at couplers, BOV, and throttle body shaft. Repair leaks.
  • Fill fluids – Add fresh engine oil (5W-30 or 5W-40 for boosted engines), antifreeze, and transmission fluid if you removed related components.

Electrical Verification

  • Battery connected and fully charged – Low voltage can cause erratic sensor readings and poor idle.
  • Check for shorts – Use a multimeter to test resistance between power wires and ground before connecting the battery.
  • Program the fuel management system – Load a base tune from your tuner. Disable any codes that will no longer apply (e.g., rear O2 sensors).

First Start Procedure

  • Prime the system – Turn the key to ON (do not start) and let the fuel pump run for 5 seconds. Repeat twice to fill lines.
  • Start the engine – Let it idle at 1,000–1,200 RPM for 20 seconds, then drop to normal idle. Listen for exhaust leaks, ticking, or knocking.
  • Monitor gauges – Oil pressure should rise within 5 seconds. Coolant temperature should climb steadily. Boost gauge should read vacuum at idle (18–22 inHg).
  • Check for oil leaks – Inspect the turbo oil feed and drain, manifold gasket, and any AN fittings. Tighten weep lines immediately.
  • Warm up and check for codes – Let the engine reach operating temperature. Scan for DTCs and address any misfires or fuel trims outside +/- 10%.

Conclusion

Installing a Garrett GTX3584RS turbo on your Camaro is a transformative upgrade that blends engineering satisfaction with exhilarating performance. The turbo’s dual-ball bearing design and advanced aero delivers quick spool and strong top-end power, easily supporting 600–800 horsepower on a properly built engine. However, the installation’s success depends on meticulous attention to detail in every phase: from selecting the right manifold and intercooler to precise fuel system upgrades and secure electrical connections.

After successful start-up, plan for a conservative break-in period of 500 miles before full-throttle pulls. Use this time to log data and fine-tune the calibration with your tuner. Remember that a turbo system is only as reliable as its supporting modifications – oil quality, cooling, and fuel delivery are non-negotiable.

For further reading on turbo selection and installation best practices, consult the official Garrett Motion GTX3584RS product page and the Camaro5 forced induction forums. For fuel system upgrades, see DeatschWerks fuel system guide. With careful planning and execution, your Camaro will deliver the kind of performance that gets your adrenaline pumping every time you hit the boost.