This video will not change your life, but you might find it interesting to see the v8 ski doing speed run after speed run with changes every run to see what improvements can be had. How fast is the V8 powered personal watercraft? Since it will go faster next year, a better question is how fast is it in 2022? That is exactly what we are going to figure out in this video. We well be doing lots of speed runs and working to dial in the jetpump setup for the naturally aspirated 6.0 ls based v8 that is currently in the ski.
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big thanks to Holley helping out on this build
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I made a game for you to play. You may have seen random numbers flashing on the screen. It might seem a little odd but I made a little game you can play if you want. Slight spoiler ahead so if you care about that then wait till the end of the video to finish reading this comment/play the game. Here is how it works the numbers flashing at the bottom left indicate how much faster or slower that run was compared to the previous one. The first run of the video speed is indicated by this — and the second is indicated as +.2 meaning that run two is +.2 mph faster then run one. Run three is indicated as +.9 meaning it is .9 faster then run two and so on and so fourth. Playing this little scavenger hunt game will reveal the final top speed to the exact decimal point, and so to begin the game you need the exact speed of the first run. Which is 80.6 (it does go faster by the end of the video) There are a total of 14 runs with indicated speeds including first and last. Can you figure out what the speed is from all runs? leave your answer in a reply to this comment.
Turbos please
That’s awesome
Very cool build man
Sounds great too
im not sure if I missed all the details, but would be so cool to see the motor supercharged with a larger jet pump with the ability to push more power and water
Praise God!
"Drazen is on the brink of becoming Oregon's next governor"
If you could find someone to tune that engine you could definitely get to triple digits
Good job guys keep up the good work
IJSBA pro here. Question, our mod skis from the 2000’s would run close to 10k rpm. A LS would run 6-7k max you would need a much larger pump and more pitch? We would also rip the pump tunnels out of the stock GPs have you had an issue with that?
Big lake,plenty of room to play..whats the name??
Will a V8 swap kit be offered?
Boost!!!!!!
If you could find a way to overdrive that prop that would be insane. To have a cruising second gear to keep it around 3K ive always thoguht how to do that. Maybe a gear vendor OD
Jet engine engineer 4 hydraulics testing via computer not R&R feeling
DARPA Kamakazi drone+ 500lb shaped charge= 8 figure contract $$$$$$$$
sounds great but still the 1.8 supercharged lump that came out would make far more power and be quicker when modded.
Nice work! I guess the elephant in the room, is why not a Berkeley or Jacuzzi pump?
Great job on the ski. I do follow this one guy on YouTube who deals with jetskiies and when he does a test one i notice he leans back. That way hes more aerodynamic to get more speed out of the ski. Do you think that could help you out? Thats just my thoughts on it. Just trying to help you guys get more speed and MPH. Have a great day sir and looking forward to the next video.
I would think a 2 L TURBO WOULD HAVE BEEN BETTER , BUT STILLL VARY COOL
You guys are the innovators of the V8 jet-ski world.There are no others.
You guys ride in fresh water on lakes with essentially no significant boat traffic where hitting these speeds doesn't carry significant risk. In contrast on salt or brackish water where we share water with myriads of boats up to 500' freighters hitting these speeds is suicide. We are always at risk of a freighter captain ignoring speed limits what will send a single standing 5'-6' wave for miles, and you don't see them until you're upon them as they have a reverse profile, push a 3-4' hole in front of them 10 yards, behind them there is a 5' drop. On any given day I am sharing the water way with 100's of 20,000lb+ boats that create random wakes 4-5'. Now and then 3-4 boats in the 20,000 lb+ class will travel together and their wakes will combine to create huge waves that are cause for pause when I'm on my 29' 9,000 lb center console. An 800 lb 200+ HP PWC from Yamaha or Seadoo will power right through a 2-3 wave at 60 mph, I know because I have both, and have done it, a 5' wave however is an entirely different story, hit one at 50+ and you'd better hope you're right with your maker, because that's the end for you.
Hi guys, your needs custom Impeller 4blade 22/30 I think
How top speed in km or mph
Add a turbo or 2
It could be so much faster.
Its crazy how much power a PWC needs to get to "just" 85mph compared to an outboard. I'd also say the biggest gains from here will come from hull blueprinting ie. sharpening all the rounded edges and making sure its razor-strait last 1/2 of the hull in a triangle-shape.
BadAss 85 is fast I've gone 86 on a 1800gpr not mine a friend
You have the power but you need to go smaller on the outlet nozzle puzzle higher pitch on the propeller blade that will get make the water come out the outlet nozzle a lot faster the smaller the whole the more pressure the or pressure the faster the jet stream If you could try that give it a shot Good luck
Same theory a fighter jet uses they pinch off the outlet nozzle and that increases the velocity of the air or in your case water
Mike finnegan has a water dump on his jet boat so on deceleration it purges the water out of the jet unit
I'll bet it doesn't feel slow when you're sitting in the seat with the throttle pined and the wind trying to blow you off the back. My GP1200 tops out at just 60 mph and that's with a factory stock motor and a rebuilt pump.
LS ski is way more badass.
How was the torc
i feel like since you proly have 5 times the tourqe you could maybe play with gearing or sum im not sure how you could do that but its definetly fast
Understanding a hull design is key to speed,there is a point where it won't reach the speeds your after,without design calculations for the hull changes
Also is the V8 heavy compared to the original motor ?
As in any powerboat,the prop is the defining area that has to be correct.and then the things that you have covered ,intake ,etc .
Wonder if you could get a university that has facilities to water tank the hull ?
Hydrofoils maybe
Turn on our I’m not sure that speed is a lot more I’m sure running side-by-side you will definitely take the lead but the only thing you would have to ride it calm water no waves
Cuanto de velocidad punta..en kilómetros
You should have a race spec life vest rated for high speed impact and an unconsious victim. They make sure you float face up to prevent drowning in that case. Just lookin out for ya.
One of Finnegans jet boat videos he talks about the curvature of the bottom of the boat and how it moves the water. Put it in the back of a spoon under running water out of your faucet and you see how it changes the direction of the water at the bottom of the spoon. Also turbo that LS and there you go 1fiddy no problem
That ski sounds sick! I was wondering if the handling changed with the larger motor in it? Center of gravity etc. Cool video, thanks for sharing this with us.
Nice
What if you guys made the haul shape deeper down the keel to get more haul out of the water. Maybe the extra weight of the v8 is making the ski ride lower and cause more water resistance up on step
Dosent change the fact that it sounds so damn good
You guys have done outstanding!!! Glad to have been able to watch the project
I can’t wait to see a proper V8 pump hanging out of the back of a JetSki.