Notices
General Boating Discussion

My buddys 800hp Seadoo

Thread Tools
 
Old 04-17-2008 | 04:40 PM
  #31  
Semper Fi's Avatar
Registered
20 Year Member
 
Joined: Oct 2000
Posts: 4,276
Likes: 8
From: SoCal
Default

Insane in the membrane!!!!!!
Semper Fi is offline  
Reply
Old 04-17-2008 | 09:20 PM
  #32  
24skaterVA's Avatar
Registered
 
Joined: Dec 2005
Posts: 384
Likes: 0
From: Lanexa VA/St. Pete FL
Default

Originally Posted by socalstone
That's pretty wild. Never seen it before. Jet's are really inefficient, so the prop probably adds 10-15mph right out of the box. Wonder what the prop slip #'s are?


The ski ran 76 w/ a jet pump. After they put a prop on it w/ the same exact motor it went 104
24skaterVA is offline  
Reply
Old 04-17-2008 | 10:07 PM
  #33  
Registered
 
Joined: Jan 2002
Posts: 381
Likes: 4
From: Daytona Beach, Fl.
Default

The pump intake is gonna create incredible drag.
WILDMAN is offline  
Reply
Old 04-18-2008 | 09:20 AM
  #34  
Wally's Avatar
Were doomed!
25 Year Member
Charter Member
 
Joined: Oct 2000
Posts: 7,100
Likes: 1,397
From: Chicago, IL
Default

Hey CNC, any way of getting some better pics of the engine compartment? The way the 3rd pic looks i cant see any way the stock pump would work since the motor is in the way. And to be honest the pic showing the engines almost looks kinda photo-shoped in reguards to that prop shaft you can see.... i take it there has to be some sort of gearbox involved in this since the engines are mounted inline and the prop shafts are off-center???
__________________
-Wally

Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
Wally is offline  
Reply
Old 04-18-2008 | 01:12 PM
  #35  
CNC's Avatar
CNC
Thread Starter
Registered
20 Year Member
 
Joined: Sep 2003
Posts: 589
Likes: 13
From: Ludington, Mi.
Default

Wally,
The next time I get down to my buddies shop I'll shoot some more pics. No Photo shop for sure. I included a couple more, still from early, one of just engine in mockup position and the other of the of the whole Seadoo sitting on his horizontal boring mill, drilling holses for the propshaft tubes.
CNC
Attached Thumbnails My buddys 800hp Seadoo-00290014.jpg   My buddys 800hp Seadoo-00750010.jpg  
CNC is offline  
Reply
Old 04-18-2008 | 01:36 PM
  #36  
Shore Thing's Avatar
Gold Member
 
Joined: Feb 2004
Posts: 1,211
Likes: 0
From: Hollywood, MD
Default

it seems like it would be nearly impossible to control this thing at speed unless you can somehow synch the engines together. Get a few more RPM's in one engine than the other and you're gonna be thrown.

Cool project though. good luck and be safe (relatively).
Shore Thing is offline  
Reply
Old 04-18-2008 | 02:16 PM
  #37  
Registered
 
Joined: Feb 2004
Posts: 2,948
Likes: 1
Default

Could someone please rename this the

"Darwin Awards Thread"
LaughingCat is offline  
Reply
Old 04-18-2008 | 02:22 PM
  #38  
ziemer's Avatar
Gold Member
 
Joined: Apr 2006
Posts: 1,479
Likes: 5
From: St. Cloud, FL
Default

Originally Posted by Wally
Hey CNC, any way of getting some better pics of the engine compartment? The way the 3rd pic looks i cant see any way the stock pump would work since the motor is in the way. And to be honest the pic showing the engines almost looks kinda photo-shoped in reguards to that prop shaft you can see.... i take it there has to be some sort of gearbox involved in this since the engines are mounted inline and the prop shafts are off-center???
Seems like a waste of (2) perfectly good 260's.

I was thinking the same in regards to photo-shop becaues in the first pic the size of the rear motor seems out of scale to the jet ski. (motor looks smaller than what one actually is.) After seeing the larger pic in the shop though, it doesn't look like the average 2-seater jet ski.

Here's one that was done awhile ago with a single 2.5.

ziemer is offline  
Reply
Old 04-18-2008 | 02:32 PM
  #39  
Banned
 
Joined: Jan 2006
Posts: 523
Likes: 0
From: Jupiter FL
Default

The ski in question is what is called a sea doo LRV they made them around 2000 I think a 4 seater w coolers and the kitchen sink. as far as the motors sinking up he said custom gearbox so I figure that both motors feed into a gearbox that then drives the props and the pump He definatly has room to work compared to a standard 2 or 3 seater. Oh yeah stock 135 hp motor.
db71 is offline  
Reply
Old 04-18-2008 | 03:24 PM
  #40  
Plum_Crazy's Avatar
Registered
20 Year Member
 
Joined: Dec 2003
Posts: 1,166
Likes: 49
From: Port Charlotte, FL
Default

Originally Posted by WILDMAN
The pump intake is gonna create incredible drag.

It's blocked off. You can read all about the whole project here. This guy works for Reggie Fountain.

http://www.greenhulk.net/forums/showthread.php?t=47449
Plum_Crazy is offline  
Reply


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.