Building a Fast Honda with an H22 Jackson Supercharger
Tracking down a functional h22 jackson supercharger is like hunting for an unusual relic in the Honda world, but the payoff in raw drivability and instant throttle response is worth just of the effort. If you've spent whenever on the old forums or lurking in Prelude Facebook groups, you know that this specific setup has attained a sort of legendary status. It's the "holy grail" for guys who want more power with no complexity and lag that usually comes with a custom turbo kit.
Back in the day, Jackson Racing was the name to beat for bolt-on Honda power. They didn't simply make parts; they engineered solutions that seemed they could have come straight from the factory. Putting an h22 jackson supercharger on an H22A, H22A1, or H22A4 completely changes the character of the car. It takes that high-revving VTEC scream and adds a thick layer of low-end torque that the H-series—while great—was always just a little light on through the factory.
Why Everyone Still Wants This Setup
The main reason people go crazy for the h22 jackson supercharger is the power delivery. We all love VTEC, but let's be honest: waiting until 5, 000 RPM to feel like you're actually moving can get a little old during a daily commute. This supercharger uses an Eaton M62 rotating assembly, which is a positive displacement blower. This means the second you touch the gas, you have boost. There's no waiting for a turbine to spool up or for the exhaust gases to build pressure.
It's just instant, linear pull. Seems like you swapped in a much larger V6 engine rather than just bolting something onto your four-cylinder. For a street car, that's exactly what you want. You can dip to the power to merge into traffic or blast out of a corner without needing to downshift two gears just to get into the "fun zone. "
The Hardware: What's Inside the Box?
If you're lucky enough to find a complete kit, you're looking at more a blower. The h22 jackson supercharger kit replaces the entire intake manifold. That's one of the coolest parts about it—it's a very integrated design. The supercharger sits right where the factory plenum used to be, which helps keep things relatively compact, though it definitely fills up the engine bay of a Prelude or an Accord swap.
The kit usually includes the blower itself, the cast aluminum intake manifold, a bypass valve, as well as the pulleys needed to drive the unit off the alternator belt. One of the quirks of the H22 setup compared to the B-series kits is how tight everything is. You're working with a big engine in a bay that wasn't exactly made for extra bulk. But once it's in, it looks like it belongs there. The "stealth" factor is high, especially if you keep your piping simple.
The Bypass Valve Magic
A lot of people overlook the bypass valve, but it's the secret sauce of the h22 jackson supercharger . When you're just cruising at a steady speed on the highway, the valve stays open, allowing air to bypass the rotors. This means the engine isn't under constant boost pressure when you don't need it, which saves fuel and reduces heat. The moment you floor it, the valve snaps shut, and you're instantly in the boost. It's the best of both worlds.
Installation Realities and Challenges
Now, don't let the "bolt-on" label fool you. Installing an h22 jackson supercharger isn't exactly a thirty-minute job over a beer. Because the H22 is really a fairly wide engine, clearance is always a problem. If you're putting this in a 5th Gen Prelude (BB6), you're usually okay, but if you're wanting to fit this into a Civic or Integra swap, you might need to get creative with the firewall or the brake booster.
One of the biggest headaches is the power steering pump. In many cases, you need to relocate or slightly modify the brackets to get the supercharger belt to line up and clear everything. You also have to be really careful with belt tension. If it's too loose, you'll lose boost and hear that annoying belt squeal. If it's too tight, you'll burn out the bearings in your alternator or maybe the supercharger's nose drive. It's a bit of a balancing act.
Dealing with the Heat
The biggest "downside" to the h22 jackson supercharger —and really any manifold-mounted Eaton blower—is heat. Unlike a turbo or a centrifugal supercharger, there's no easy way to run a front-mount intercooler. The air goes from the blower straight to the cylinders. Because compressing air naturally makes it hot, your intake air temperatures (IATs) can get pretty spicy, especially on hot summer days or during back-to-back pulls.
Most guys running this setup today have figured out a few workarounds: * Water-Methanol Injection: This is probably the most popular "fix. " Spraying a fine mist of water and meth into the intake tract works wonders for dropping temperatures and preventing knock. * Thermal Gaskets: Using a Phenolic intake manifold gasket helps keep the heat from your engine block from soaking into the supercharger manifold. * Lower Boost Pulleys: Resist the urge to "pulley down" for max boost unless you have the cooling to support it. 6 to 8 PSI is generally the sweet location for a reliable street build.
Tuning the Beast
Several years ago, Jackson Racing included a little "black box" or an FMU (Fuel Management Unit) to trick the factory ECU into adding more fuel under boost. Do your favor and throw those in the trash. If you're building an h22 jackson supercharger car today, you really should be using a programmable ECU like Hondata, Neptune, or even a standalone like Haltech.
Proper tuning is the difference between a car that's a blast to drive and a car that melts a piston three weeks after the install. Having a modern tune, you are able to smooth out the VTEC crossover and make sure the fueling is perfect across the entire rev range. Since the H22 has those FRM (Fiber Reinforced Metal) cylinder liners, you really don't want to run lean or handle detonation. They aren't as forgiving as iron sleeves when things go wrong.
The Market: Finding One Today
Since Jackson Racing stopped producing these kits years ago, the used market is the only way to get your hands on an h22 jackson supercharger . They don't come up for sale often, and when they do, they aren't cheap. You'll likely find them on eBay, specialized Honda forums, or dedicated marketplace groups.
When you're buying used, check the rotors. You need to see the original coating intact as much as possible. If the coating is all flaked off, the blower will be less efficient. Also, spin the pulley by hand; it will feel smooth, not crunchy. If it feels rough, you're looking at a bearing rebuild, which adds to the cost but isn't the conclusion of the world.
Is It Still Worth It?
You might be wondering if it's better to just go turbo. Honestly, if you want the highest horsepower number possible for the very least amount of money, a turbo is probably the way to go. But if you want a car that feels "finished, " sounds incredible, and it has a power curve that feels like a factory-tuned special edition, the h22 jackson supercharger is hard to beat.
There's something incredibly satisfying regarding the whine of an Eaton blower mixed with the high-pitched scream of the VTEC engine. It's an unique driving experience that a turbo just can't replicate. It turns the Prelude into a sophisticated grand tourer using a mean streak.
Wrapping it up, the h22 jackson supercharger remains one of the most iconic upgrades for that H-series platform. It's not just about the speed; it's about how that speed is delivered. It's about the whine, the torque, as well as the "cool factor" of getting a period-correct, high-quality power adder. If you find one for a decent price, don't hesitate—grab it, rebuild it if needed, and revel in one of the best setups Honda tuning has ever seen.