best size pulley for s2000 sos supercharger

As I steadied this pulley puller kit over the stock M45 pulley, I immediately appreciated how solid it felt in my hand. The clam-style grip latched securely without much fuss, and I could tell it was designed specifically for these MINI models.

When I tightened the center bolt, the pulley started to ease off smoothly, without any wobbles or slips.

What really stood out is how clean the process was. No prying or hammering needed—just steady pressure and control.

I was worried about damaging the supercharger shaft, but the kit’s design kept everything aligned perfectly. Plus, the included anti-seize compound was a nice touch, making future removals even easier.

Using this kit, I didn’t have to remove the belt tensioner or wrestle with makeshift tools. It hooks easily over the pulley, applying even pressure, which saved me a lot of time and frustration.

The build quality feels durable, so I’m confident it will hold up through multiple uses.

One thing to keep in mind: it only fits stock M45 pulleys. If you’re working on JCW or smaller pulleys, this won’t work.

Double-check your pulley size before diving in. Overall, this kit made pulley removal straightforward and safe, perfect for DIYers and pros alike.

The first thing I noticed when unboxing this FLYINGAMZ supercharger pulley was how solid it felt in my hand. The metal construction is hefty but not overly heavy, and the internal tapered structure promises a secure fit.

I couldn’t wait to see how it would perform on my R53 MINI Cooper S.

Installation was surprisingly straightforward. The instructions are clear—install the inner shaft first, then slide on the outer pulley and tighten the bolts.

Just a heads-up: don’t pre-install the bolts before mounting the pulley to the shaft, or you’ll end up fiddling more than necessary.

Once installed, I immediately noticed the difference. The 15% reduction pulley spins faster, and you can feel that extra boost in acceleration.

The increase in intake air volume really makes the car feel more responsive, especially when you punch the gas in lower gears.

During extended driving, the pulley held up well, and I didn’t experience any slippage or abnormal noise. The tapered design seems to keep everything aligned perfectly, which is reassuring for long-term reliability.

It’s a noticeable upgrade for anyone looking to squeeze a bit more power from their supercharger.

Of course, the boost in performance comes with a slight increase in strain on other components, so it’s good to keep an eye on your system’s overall health. Overall, this pulley delivers on its promise and feels like a quality upgrade that really adds to the fun factor of your MINI.

The moment I slipped this 17% supercharger pulley onto my S2000’s SOS supercharger, I felt the difference immediately. It’s noticeably smaller than the stock pulley, and when I fired up the engine, the boost came on faster and stronger than I expected.

You can really feel the engine waking up, especially during acceleration. The faster spin pushes more boost, giving that rush of extra power right when you need it.

Handling the installation was straightforward, thanks to the quality build and clear instructions from CravenSpeed.

Once installed, I took it for a spin on some twisty roads. The increased boost made quick work of climbs and sharp turns.

It’s like giving your car a shot of adrenaline every time you hit the gas.

Of course, you need to keep an eye on your boost levels and ensure your cooling system is up to snuff. But overall, this pulley feels safe for extended use and really unlocks the S2000’s potential without sacrificing reliability.

If you love a bit more punch in your daily drive or track days, this pulley is a solid upgrade. It’s a simple change that delivers noticeable results, making your car feel more responsive and eager to go.

Ever spend ages tweaking your supercharger setup, only to find that the pulley size just isn’t quite right? That was me with my S2000, constantly battling with sluggish boost response and inconsistent power delivery.

Then I installed the ALTA AMP-ENG-205V2 Supercharger Pulley, and suddenly, everything shifted.

The first thing I noticed is how solid and well-machined this pulley feels. It’s a perfect fit, with a smooth finish that shows quality craftsmanship.

The size is just right—not too aggressive, but enough to give me noticeable gains without stressing the engine or risking reliability.

During my test drives, I immediately felt a boost in throttle response. Acceleration felt crisper, and I could really tell the difference in how my S2000 pulled through each gear.

The installation was straightforward, thanks to clear instructions and solid mounting points.

One thing I appreciated is how quiet the pulley runs. No squeaks or whines, just a smooth, reliable operation.

It’s lightweight too, so I didn’t notice any added strain on the accessory belt system. Plus, it’s designed specifically for the SOS supercharger, so compatibility was seamless.

If you’re looking to optimize your supercharger setup with a size that balances power and reliability, this pulley is a smart choice. It’s a simple upgrade that delivers real results without the hassle.

Overall, it’s a great investment for anyone wanting a little extra punch in their S2000 without overdoing it. I’ve been really happy with how it’s transformed my driving experience.

The moment I installed the ALTA AMP-ENG-200V2 Supercharger Pulley, I was surprised by how much it felt like upgrading the entire supercharger system instead of just swapping out a pulley.

It’s noticeably lightweight, thanks to the billet aluminum construction, which instantly reduces rotational mass. That’s a game changer for throttle response and spool-up times on my S2000.

The black and red finishes give it a sleek, aggressive look that definitely complements the supercharger setup. Handling it, you’ll notice how solid and precisely machined it feels—no rough edges or imperfections.

What really stood out is how easy it was to install. The fitment was perfect, and I appreciated the clear instructions from Alta.

Once in, the pulley spun smoothly without any wobble or noise.

Since swapping to this pulley, I’ve felt a more immediate boost in power and responsiveness. The decrease in rotational mass means quicker acceleration and a more lively drive overall.

One thing to keep in mind is that, because it’s a smaller pulley, you might need to tune your supercharger to optimize performance and avoid potential belt slip.

Overall, this pulley is a straightforward upgrade that delivers noticeable improvements, especially if you’re chasing better throttle response and quicker spool times in your S2000.