Fastest SOB hull???

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03-08-2021, 02:33 PM
robert cruse

Quote:

Originally Posted by XstreamVking

I know a guy with a 20' Lake and Bay with the 250 SHO nizpro S/C It does 101. So 475 hp? IDK about that. Did mid 80's with the same 250 Stock. Same hull with 300 XS would run high 90's. He was expecting more. :D

I have a buddy with a 22 Cougar MTR - top speed with a 300 x - 90 mph . We are at 1750 ft. He put a Nizpro 450 hp Supercharged Yamaha on it - first pass - 114 mph GPS. This speed was with stock Yamaha gearcase - no nosecone but water intake holes above centerline of gearcase were closed off. He was happy. I have twin 475 hp Nizpro Yamahas on a 25 Talon - in gear idle start to 100 mph - 10 seconds. No top speed numbers yet - the boat skates around over 105 mph - scary -trying to work it out.
03-09-2021, 09:39 PM
WavetoWave

Quote:

Originally Posted by Greg G

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In the meantime, a contender for a spot on "The List" in 2021 is the Chaudron Pro S22 deep V.

They are starting to show up in the US and the 24 degree V’s are proven in rough water unlike some other hulls mentioned which are more lake boats.
Max speed for the S22 with a 300XS with DBR 1.3 trying different props yielded 95mph. They've not yet mounted a 300R. A normal build with a 250XS weighed about 2200 lbs fully rigged. Maybe Chaudron USA will work with Nizpro to create a test boat. There are a lot of Yamaha’s in Florida according to S&F guys down in that area, but not sure anyone has seen a flashed Nizpro SHO. Evidently the ECU from them brings the V6 to 332hp.

Not sure if the factory warranty from Yamaha still stands but a "squat" 505lb V6 with 332hp and factory lwp might make a nice, fast package all around seeing as Merc has no performance V6 option anywhere to be seen unfortunately.

Attachment 483604

I will be running the Chaudron 25 with a 300R tomorrow or Friday, it's brand new so won't be doing a full test.

With all these smaller boats you want that stability at those speeds which is hard and the aerodynamics play a huge part past 100 MPH. Which is why there seems to be a wall with some boats no matter how much power is added.
03-09-2021, 09:39 PM
WavetoWave

That's a wild paint job on that 22, looks cool.
03-11-2021, 02:51 PM
Greg G

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Quote:

Originally Posted by WavetoWave

With all these smaller boats you want that stability at those speeds which is hard and the aerodynamics play a huge part past 100 MPH. Which is why there seems to be a wall with some boats no matter how much power is added.

Quote:

Originally Posted by WavetoWave

That's a wild paint job on that 22, looks cool.

Agree 100% on the aerodynamics. Bernico did substantial wind flow modeling when they re-designed there 22' F2 Xtreme below left.

This is also why Tuff's 25 is "smaller" in many regards then there 21. They focused on weight reduction and gave the 25 a narrower beam and lower profile then the 21 yet it has about the same size cockpit area. Built for smooth lake water and chasing a big speed with the wider 10" pad and mini strakes. Makes the 21 Tuff (890 lbs) even more impressive at 106 mph with a stock 300XS. No numbers yet on the Tuff 21 up there that is running a 300R but probably not getting 106.

The Chaudron 22 with a 300R or a flashed Nizpro Yamaha V6 on the back would be an interesting test. They build wave crushers over in Malta. Maybe your friends at the factory have that in the works this year. I suspect it would easily touch 100 mph.
03-14-2021, 09:22 AM
Greg G

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Old School Superboat 21 with old school power back in the day.

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03-14-2021, 09:24 AM
Greg G

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And the same one today. Even the Strong Island Mafia members are embracing Merc's V8 Tall Boy.

Attachment 483867
03-14-2021, 09:26 AM
Greg G

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Meanwhile outside of New York Metro, they did not get the memo. Never, ever install a custom 12" pad on a Superboat 21.
03-14-2021, 09:41 AM
Greg G

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It won't be long before someone hangs a 300R V8 onto a Progression 22 and tries to break the 300XS best speed of 94 mph with full interior.
03-16-2021, 01:31 PM
WavetoWave

The 300R is definitely a beast, the torque and power delivery across the RPM range is incredible.

https://live.staticflickr.com/65535/...40b1b719_k.jpg
03-19-2021, 07:02 AM
Greg G

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Wait, I could have had a V8. The 250R and 300R are Screaming and Flying off the shelves.

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03-19-2021, 07:09 AM
2.5-21

Quote:

Originally Posted by Greg G

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And the same one today. Even the Strong Island Mafia members are embracing Merc's V8 Tall Boy.

Attachment 483867

Where is this boat now? Any running details?
03-19-2021, 05:37 PM
goneby

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Quote:

Originally Posted by Greg G

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It won't be long before someone hangs a 300R V8 onto a Progression 22 and tries to break the 300XS best speed of 94 mph with full interior.

YAttachment 4841982 still doing testing
03-19-2021, 09:45 PM
mragu

Quote:

Originally Posted by 2.5-21

Where is this boat now? Any running details?

Friend from high school. Havent seen him since late last summer. Didnt talk numbers but still a beautiful rig.
03-19-2021, 09:57 PM
hellbents-10

Still waiting for one to go 118! Must be that 9". hahahahaha
03-20-2021, 07:49 AM
Greg G

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Velocity USA is getting a lot of interest in there 230 Sport Cabin for 2021

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