Introduction: Unlocking the BRZ's True Potential

The Subaru BRZ, along with its twin the Scion FR-S/Toyota 86, has long been celebrated as a pure driver's car. Its low center of gravity, near-perfect 50:50 weight distribution, and sharp hydraulic steering make it a joy on twisty roads and racetracks. However, the FA20 engine's naturally aspirated output of roughly 200 horsepower has always left enthusiasts wanting more. While the chassis begs for more power to match its handling capabilities, factory output often feels underwhelming during straight-line acceleration.

For those seeking a meaningful power increase without sacrificing the car's responsive character or adding significant weight, forced induction is the obvious path. Among the options, centrifugal supercharger kits have become a favorite for their linear power delivery, excellent drivability, and relative simplicity. The Vortech V3 supercharger kit stands out as a popular, proven solution, offering a claimed 60 horsepower gain for around $4,200. But is it the right choice for your BRZ? This article dives deep into every aspect of the Vortech V3 kit—from performance and installation to cost and long-term reliability—so you can make an informed decision.

What Is the Vortech V3 Supercharger Kit?

Vortech Engineering has been a leading name in centrifugal superchargers since the 1990s, known for their high-quality, race-proven systems. The V3 series is their latest generation, designed for modern four- and six-cylinder engines. For the Subaru BRZ (2013–2020), Vortech offers a complete kit that includes everything needed to add forced induction in a weekend.

Kit Components

The Vortech V3 supercharger kit for the BRZ arrives as a near-complete package. Key items include:

  • The V3 Si-Trim supercharger unit — a self-contained, oil-fed centrifugal compressor with an internal oiling system (no need to tap into the engine's oil system).
  • A cast aluminum mounting bracket that positions the supercharger on the passenger side of the engine bay, driven by a dedicated serpentine belt.
  • An air-to-air intercooler with pre- and post-intercooler piping, which mounts in front of the radiator for efficient charge air cooling.
  • A blow-off valve and high-flow bypass system to prevent compressor surge when the throttle closes.
  • Upgraded fuel injectors (usually 440cc or larger) to supply enough fuel under boost.
  • All necessary hoses, clamps, bolts, and a detailed installation manual.

The kit is often available in both standard and "tuned" versions. The standard kit requires a standalone ECU tune (like ECUTek), while some vendors offer a package with a pre-loaded flash tune. Vortech does not include a calibration, so you must budget for professional tuning.

How a Centrifugal Supercharger Works

Unlike positive-displacement superchargers (like the twin-screw Eatons or Harrop HTV units) that provide instant boost at low RPM, a centrifugal supercharger uses an impeller spinning at high speed—up to 50,000 RPM—to compress air. The boost builds progressively with engine RPM, mimicking the characteristics of a turbocharger but driven by the engine's crankshaft. This results in a very smooth, linear power curve that feels like a larger naturally aspirated engine. For the BRZ, this is a natural fit because it preserves the car's responsive throttle and doesn't overwhelm the chassis with a sudden surge of torque.

The V3 unit is oiled internally; it does not connect to the engine's oil system, simplifying installation and reducing the risk of oil contamination. Vortech designed the kit to produce a safe 6–7 psi of boost on a stock internal engine, which corresponds to the advertised 60 horsepower gain. With careful tuning, some owners have pushed higher boost levels, but Vortech's conservative setup emphasizes reliability.

Performance Gains: More Than Just a Number

The headline claim of 60 extra horsepower brings the BRZ from around 200 whp (wheel horsepower) to roughly 260 whp (depending on the dyno and tune). In terms of crank horsepower, that's about 200 hp stock to 260–270 hp with the supercharger. But the real story is the torque curve. The stock FA20 feels peaky and lacks low-end grunt; the supercharger fills that deficit significantly. While the Vortech V3 is not a low-boost blower like a twin-screw (which adds 30+ lb-ft at 2,500 rpm), it does provide noticeable boost starting around 3,500 rpm and builds strongly to redline.

In real-world driving, the difference is transformative. The car pulls hard from 4,000 rpm onward, making highway merges and overtakes effortless. Lap times on track can drop by several seconds, as the driver can stay in a higher gear and rely on the mid-range punch. Many owners report that the car feels "complete" with 260 whp—enough to be genuinely fast but not so much that it upsets the chassis balance.

Dyno Charts and Real-World Numbers

Independent dyno tests from forums like FT86 Club and tuning shops show consistent results. A typical dyno graph from a stock 2013 BRZ reads around 170–180 whp (depending on the dyno type). With the Vortech V3 kit and a proper ECUTek tune, the same car will produce 230–240 whp on a Dynojet, with torque climbing from 140 lb-ft to 190–200 lb-ft. Some tuners have achieved 250 whp with additional mods like a catless header and E85 fuel. It's important to note that the 60 hp gain Vortech advertises is at the crank, so wheel horsepower gains are typically in the 50–60 hp range.

Comparing Stock vs. Supercharged

  • Stock BRZ: 0–60 mph in ~6.2 seconds, quarter-mile in ~14.5 seconds at 97 mph.
  • Vortech V3 BRZ (260 hp crank): 0–60 mph in ~4.8 seconds, quarter-mile in ~13.2 seconds at 106 mph.

The weight penalty is minimal—about 30 lbs for the supercharger, intercooler, and piping—so the car's handling character remains intact. Bragging rights aside, the real benefit is how much more accessible the power becomes in daily driving and track use.

Installation: What to Expect

Vortech designs its kits with the serious DIYer in mind. The instructions are detailed, and the bracket system is well-engineered. However, this is not a beginner-level project. Expect to spend a full weekend (15–20 hours) if you're experienced with wrenching; a professional shop might do it in 8–12 hours.

DIY vs. Professional Install

If you have a good set of tools, a jack and stands, and some experience with engine bay work, you can tackle installation yourself. The most time-consuming parts are removing the factory intake manifold to swap injectors and routing intercooler piping. You'll also need to remove the front bumper to mount the intercooler. Many owners report that the instructions are mostly clear, though you may need to re-route some vacuum lines or trim a plastic shroud.

Common pitfalls include:

  • Incorrect belt tension—too loose and it slips, too tight and it wears bearings.
  • Leaking boost/vacuum connections at the intercooler couplers.
  • Not fully seating the fuel injectors, which can cause leaks.

If you're not confident, paying a reputable shop $800–$1,500 for installation is money well spent. Shops familiar with BRZ supercharger installs can finish in a day and will catch potential issues.

Tools Required

  • Socket set (metric), torque wrench, screwdrivers, pliers.
  • Jack and jack stands or a lift.
  • Coolant catch pan (you'll drain the radiator).
  • Fuel injector puller (optional but helpful).
  • ECU tuning cable (e.g., ECUTek cable) for flashing the tune.

Tuning and Supporting Mods

Installing the hardware is only half the battle. The FA20 engine is very sensitive to air/fuel ratios and ignition timing, and running boost without proper calibration is a recipe for detonation. You must have the ECU tuned.

ECU Tuning with ECUTek

The BRZ ECU is supported by ECUTek, the most popular tuning platform for this platform. A professional tuner can create a custom calibration that optimizes fuel, timing, and boost targets. Expect to pay $500–$1,000 for a base tune plus road or dyno time. Many remote tuners offer street tuning: they send you a base file, you datalog, and they revise until the tune is safe and powerful.

E-tuning is convenient, but a dyno tune will often yield a few extra horsepower and ensure the fueling map is spot-on at WOT. Some popular BRZ tuners include CSG Tuning and Delicious Tuning.

Fuel System Upgrades

The Vortech kit includes larger injectors, but the stock fuel pump may become marginal at higher boost. For the standard 6–7 psi setup, the stock pump is usually adequate. However, if you later upgrade the pulley or add E85, you'll need a higher-flow in-tank pump (like a DW200 or AEM 340 lph). Some tuners also recommend upgrading the fuel pressure regulator.

Exhaust and Cooling Mods

While not strictly required, a freer-flowing exhaust (catback or even a catless header) helps the engine breathe and can add 10–15 hp with the supercharger. A larger radiator or oil cooler is also wise if you plan to track the car, as the supercharger adds heat to the intake charge.

For the charge air itself, the included air-to-air intercooler is effective for street and light track use. For extended heavy abuse, some owners upgrade to a water-to-air intercooler, but that adds complexity and cost.

Cost Breakdown: The Full Picture

The kit price of $4,200 is just the starting point. Here's a realistic budget:

  • Vortech V3 kit: $4,200 (often on sale for $3,800–$4,000).
  • ECU tune: $600–$1,200 (including ECUTek license if not already owned).
  • Installation labor: $0 (DIY) to $1,500 (professional).
  • Supporting mods (exhaust, oil cooler, pump): $500–$1,500.
  • Clutch upgrade: The stock clutch can handle 260 whp for a while, but aggressive driving may require an upgraded clutch ($500–$1,000 installed).

Total investment: roughly $5,000–$8,000 all-in, depending on labor and additional parts. That's still significantly less than a full turbo conversion or a built engine, making the Vortech V3 one of the best bang-for-buck power mods for the BRZ.

Comparing Vortech V3 to Other Supercharger Kits

The BRZ aftermarket offers several forced-induction options. How does the Vortech V3 stack up?

Vortech V3 vs. Harrop HTV vs. Jackson Racing C30

Kit Type Peak Boost Cost (kit) Avg WHP
Vortech V3 Centrifugal 6–7 psi $4,200 235–245
Jackson Racing C30 Centrifugal 7–8 psi $5,000 250–260
Harrop HTV Twin-screw 6–7 psi $5,500 240–250

The Vortech V3 is the most affordable option, but it offers less low-end torque than the Harrop HTV. The Jackson Racing C30 is similar to the Vortech but often includes a Rotrex unit and has a reputation for excellent fitment. For budget-conscious enthusiasts who want a clean install and aren't afraid of tuning, the Vortech V3 is a strong choice.

Long-Term Reliability and Maintenance

A properly installed and tuned Vortech V3 kit is reliable for daily driving. The FA20 engine has a forged crank and rods, making it reasonably strong at these power levels. However, there are some points to watch:

  • Oil cooling: The stock oil cooler is marginal on track; adding an oil cooler is recommended for any boosted BRZ that sees track days.
  • Heat soak: The air-to-air intercooler can heat-soak during extended hard driving. A sprayer kit or water/meth injection can help, but for most street users this isn't a concern.
  • Belt slippage: Check the supercharger belt tension every few thousand miles, especially if you track the car.
  • Injector cleaning: Direct injection engines can build up carbon on intake valves; adding a catch can helps, and professional cleaning every 30,000 miles is wise.

With proper maintenance, many owners have logged 50,000+ supercharged miles without major issues. The Vortech unit itself is serviceable, and replacement parts are available from Vortech's network.

Pros and Cons Summary

Pros

  • Significant power gain — 60 hp at the crank, linear delivery.
  • Excellent value — cheapest supercharger kit for the BRZ.
  • Complete kit — includes injectors and intercooler.
  • Factory-like drivability with a good tune; no turbo lag.
  • Retains chassis balance — minimal weight added over front axle.
  • Proven reliability with thousands of kits sold.

Cons

  • Requires professional tuning — not a plug-and-play solution.
  • Low-end torque still limited compared to twin-screw kits.
  • Installation complexity — moderate to high for DIYers.
  • Additional costs for tune, labor, and supporting mods can add up.
  • Not CARB-legal in California (unless you buy the rarely seen CARB version).
  • Stock clutch may slip eventually—plan for an upgrade.

Conclusion: Is the Vortech V3 Supercharger Kit Right for You?

The Subaru BRZ aftermarket has matured, and the Vortech V3 supercharger kit remains one of the most accessible and rewarding power upgrades. For around $4,200 (plus supporting items), you can transform your BRZ from a momentum car into a genuinely quick sports car. The 60 horsepower gain is noticeable and dramatically improves acceleration without ruining the car's sublime handling. While it's not a low-end torque monster like a twin-screw blower, the centrifugal V3 offers a smooth, linear power curve that many enthusiasts prefer.

Before buying, consider your budget and skills. If you can handle installation yourself and have a good tuner, the Vortech V3 offers fantastic value. If you want a simpler, more DIY-friendly kit with CARB compliance and slightly better fitment, you might lean toward the Jackson Racing system which is also popular. But for the price-conscious driver who wants reliable, 260-horsepower fun, the Vortech V3 is hard to beat.

For more detailed owner experiences and install guides, check out the forced induction section on FT86 Club. And as always, consult with a professional tuner before making any modifications to ensure your build is safe and reliable.