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Old 12-29-2008, 04:53 PM
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Default The Curry Challenge

Oi, TD I hope you've got your BIG cheque book ready, its going to get some stick when we get to that curry house
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Old 12-29-2008, 05:30 PM
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Default More XS pics

If any of you guys are interested, you can see a few pics from the day the boat was collected up to xmas eve when the graphics were finished.

http://pics.team25racing.com/#3.18

You can also get more info from our website:
www.team25racing.com
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Old 12-29-2008, 07:30 PM
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So the exhaust is out both the strut and out the bottom by the bearing carrier??? Is the exhaust switchable because I notice the flap in the strut opening?

Very cool, I wish I could come over there with you guys!!!

Joe Gere
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Old 12-30-2008, 08:01 AM
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Quote:
Originally Posted by aquafun View Post
.... I have always been surprised more XS boats have not become race boats as they do seem a good way to get out racing....
There were plans to start an own series. Unfortunately that never got off the ground:





Some more pics:





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Old 12-30-2008, 08:04 AM
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Some more:





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Old 12-30-2008, 03:53 PM
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Default xs

good photo,s i havent seen those before.the exausts come out above the front of the shaft the flap above the p bracket is some kinda fresh air vent from above the deck at the rear.a friend took his seateks out of a buzzi today made my yanmars look like small generators
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Old 12-30-2008, 04:37 PM
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scotty,

Yes, the Seateks are BIG!!! On our 38 and even the Ganica early on had all the exhaust came through the strut. I'd seen many Euro diesel boats with and my own pleasure ones here in the States with just vent tubes for the props. Regardless of what Buzzi may say publicly the exhuast throught the strut did a couple things both performance and PR wise:

1) pressurized air to the prop which allowed them to spool up quicker to get on plane - instant slip not dependant on prop creating suction

2) it blended the exhaust with the water more throughly and made less of a smoke trail when you were running - the prop just grabbed the exhaust and mixed it into the wash

3) when you started the boat all the exhaust was under water, again less smoke

I'd seen some of the CUV's like Annabella that had a diverter valve on the exhaust similar to a Merc Silent Choice where they could divert the exhaust to the prop to get on plane and then change over to full through transom.

At the dock those boats smoked like hell but more important when they ran you could see the black smoke everytime they get on and off the throttle. With the Buzzi strut exhaust you hardly every saw smoke until we got the larger engines and went away from strut only exhaust.

I've been in there with Buzzi and I believe the lack of visable exhaust smoke leads people to assume that Buzzi didn't throttle the diesel boats. I say that despite what people think they saw I've seen it and done it and that is throttle the diesel boats much harder than a gas boat. With a gas boat you lift off the throttle to not over speed the engine and you apply throttle when you get load again - I know it's not that simple but it's the theory.

With the diesels when the prop left the water you needed to pump the throttle as fast as possible, as many times as possible from 3/4 to FULL throttle - why?

Because everytime the props loose bite (load) and or you pull back the sticks the fuel pump returns to idle and without fuel there is no boost. By pumping the hell out of the old mechanical pump engines everytime you go to full throttle for a breif second the rack lets full fuel to the engine - this keeps up heat which keeps some boost and turbo speed and when you finally apply power with the prop loaded again you still have some boost and can accelerate.

Nobody on here (OSO) seems to believe that but, why is Buzzi able to run his own diesel boats faster than anyone he sells them too - think about that - it's how you drive them!!!

Joe Gere
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Old 12-30-2008, 05:05 PM
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interesting info ,as i,ve always raced a pair of merc outboards or a 496ho its gona be bit of a new exsperiance but it wont be for lack of trying .im looking forward to launch day even though daytime temp today was only 3degrees
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Old 01-01-2009, 08:54 AM
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Quote:
Originally Posted by olli View Post
There were plans to start an own series. Unfortunately that never got off the ground
Met a guy in the late 90's that showed me correspondence between him and either Sunseeker or Sunseeker sales regarding a one make XS2000 race series, however I just knew that it would not get off the starting blocks as racing I personally believe has never been something Sunseeker wanted to actually do

I reckon the idea of a Buzzi hulled tie up gave Sunseeker an exposure to the glamour associated with Buzzi's achievements without ever going near a start line plus there could be many spinoff's for movie's and advertising of which there has been

Sunseeker probably considered getting into bed with Buzzi a good idea as his boats were high profile achievers and an 80' Buzzi boat that had just done some record breaking sat right outside the Sunseeker HQ in Poole a bit of a poke in the eye to Sunseeker who wanted to consider the larger 80'+ motor cruiser market their domain and this could prove a large threat

So without ever going near a start line the XS was conceived with Buzzi a win win for Sunseeker a chance to snif the glamour of racing hang on to Buzzi shirt tails do some great adverts get into the movie's and who knows even a bit of record breaking for themselves never a bad idea for a company's products and profile and that has all been done

Last edited by aquafun; 01-01-2009 at 09:00 AM.
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Old 01-01-2009, 04:49 PM
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Quote:
Originally Posted by HabanaJoe View Post

With the diesels when the prop left the water you needed to pump the throttle as fast as possible, as many times as possible from 3/4 to FULL throttle - why?

Because everytime the props loose bite (load) and or you pull back the sticks the fuel pump returns to idle and without fuel there is no boost. By pumping the hell out of the old mechanical pump engines everytime you go to full throttle for a breif second the rack lets full fuel to the engine - this keeps up heat which keeps some boost and turbo speed and when you finally apply power with the prop loaded again you still have some boost and can accelerate.

Nobody on here (OSO) seems to believe that but, why is Buzzi able to run his own diesel boats faster than anyone he sells them too - think about that - it's how you drive them!!!

Joe Gere
Thats exactly how you load up also Turbocharged gasoline engines if you want to keep the power up (turbo spool).
Just watch any dragracer or WRC-rally car taking off.

And Yes Seateks are basically medium sized truck motors so ofcourse Yanmars look small or Cummins 5.9s.
Put it next to a Cummins N14/855...

Years ago a friend of mine Raced a Cummins N11 with a Sisu racetruck and they had 1000hp easy out of them and wrecked the competition alltogether for a few years in Europe.

Last edited by MikeyFIN; 01-01-2009 at 04:54 PM.
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