2009 Sea-Doo RXT 255 on the water
YouTube: Simonxark

Supercharged Sea-Doo That Makes 400 Horsepower Is a Monster on Open Water

Before you watch this video, turn the volume up. You're welcome.

Being a horsepower junkie has never been limited to the road. Need proof? Just take a look at this beast of a supercharged Sea-Doo. What we have in the video posted by YouTuber Simonxark is a 2009 Sea-Doo RXT 255 with a Rotax supercharger pushing 400 horsepower. To support the 20psi of boost pressure it's making at 9,000 RPM, the owner has beefed up the engine with aftermarket pistons, cylinder head work, a modified crank shaft, larger injectors and fuel pump, larger throttle body, and intercooler.

If you love the sound of supercharged cars like the Hellcat, Cobra Mustang, or ZL1 Camaro, you will freak out when you hear this PWC. It absolutely screams and is definitely the talk of the lake every time it zooms by.

Just take a look at the specs on this thing:

  • ET Race 70-145 (max 20 psi at 9000+ rpm)
  • CP Pistons 9.5:1 100.5 mm
  • Bosch Original Injectors modified tested 750cc
  • RIVA fuel pressure regulator
  • Aftermarket Fuel Pump 330LPH
  • Full racing Engine Head with great flow
  • Sea-Doo Valve Train Upgrade Kit
  • Stock modified Camshaft to make more up to 200-250 rpm
  • Lightweight: Balancer Shaft / Camshaft Sprocket / Crank Gear

Read More: Hayabusa-Powered High Performance Jet Ski Is The Perfect Way To Die On The Water

Now, if you're gonna have a souped-up Sea-Doo like the one in the video, maintaining proper upkeep is absolutely essential. Luckily, there are plenty of products on Amazon that will help make sure you Sea-Doo stays in tip-top shape.

Since you can't very well use a Sea-Doo all year round, you'll need a good way to protect it from the elements. That's where the Sea-Doo GTX 4-TEC Classic OEM PWC Personal Water Craft Cover comes in handy.

When you're out on the water, safety should be a No. 1 priority. So, if you don't already have a safety kit, it probably wouldn't hurt to pick up this Sea-Doo Safety Equipment Kit.

Nothing can ruin a riding session quite like you Sea-Doo up and dying in the middle of the water. That's why it always helps to keep a few batteries on hand. This YB16CL-BS battery from Chrome Battery can do just the trick.

Once you have all the right items on hand, you'll be ready to take your Sea-Doo, jet ski, or any other PWC of choice out on the water for one hell of a ride.

Products featured on Alt_driver are independently selected by our editors. However, when you buy something through our links, we may earn a commission.

This post was originally published on March 22, 2019.

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