Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
How much Faster will My boat will be with new Power?? >

How much Faster will My boat will be with new Power??

Notices

How much Faster will My boat will be with new Power??

Old 10-11-2002, 05:06 PM
  #11  
eTman
Guest
 
Posts: n/a
Cool

no faster unless you prop up in pitch.
 
Old 10-11-2002, 05:14 PM
  #12  
Cat & Mice
Guest
 
Posts: n/a
Default

Well thats the thing.

The current setup is 1.36 gears w/ 36 pitch Bravo's

I am able to borrow a set of 1.24 gears for a speed run and I think I will be getting a set of the Hydromative 5 blades

The 5 blades have been doing very well with high x-dim.

with the 36 4 blade I had quite a bit of slip. I am hoping the 5 blades are better.

Pyle
 
Old 10-11-2002, 05:45 PM
  #13  
Registered
 
Turbojack's Avatar
 
Join Date: Sep 2001
Location: Houston, TX, USA
Posts: 2,287
Likes: 0
Received 0 Likes on 0 Posts
Default

Inputing your past setup into the computer, with new motors it comes in at 152 mph.

When you read that article about the 144 pass they did not know at what RPM they were at when they got that speed. After they set that record both driver (Bob Teague???) & the article writer both said they did not want to try again. Boat may run good at 131 but at 139 it may take off. Has anyone had a 28 faster???

Do I want to ride with you @ 151? NO, I will just sit on side, & watch.
Turbojack is offline  
Old 10-11-2002, 05:59 PM
  #14  
Cat & Mice
Guest
 
Posts: n/a
Default

Thats a good question.

Does anyone know of a 28 Daytona running over 130 mph??

Pyle
 
Old 10-11-2002, 06:20 PM
  #15  
Registered
 
Join Date: Jan 2001
Location: PA and MD
Posts: 1,461
Received 2 Likes on 1 Post
Default

C+M, What is the weight, what props, ratio, rpm for that 131mph? Any more dyno numbers-4000 thru 6000?
cobra marty is offline  
Old 10-11-2002, 09:45 PM
  #16  
Cat & Mice
Guest
 
Posts: n/a
Default

Cobra, I don't know the exact wieght of the boat, but I don't have anything in the cabin, and the interior is all light.

1.36 36pitch 6000 rpm was 131mph

I have both the dyno sheets for my old motors and the new one's.
what info do you want?

I only have the numbers from 3000-6000 on the new motors.

Pyle
 
Old 10-11-2002, 10:35 PM
  #17  
Registered
 
Join Date: Jan 2001
Location: PA and MD
Posts: 1,461
Received 2 Likes on 1 Post
Default

The dyno curve for the new motors every 500 rpm 3-6,000rpm.

I made some up--6000lbs, 33" prop, 1.12 drive=142.44@5850rpm
cobra marty is offline  
Old 10-11-2002, 10:53 PM
  #18  
Enjoy the show
VIP Member
 
Ron P's Avatar
 
Join Date: Feb 2001
Location: The Joisey Shore
Posts: 10,353
Likes: 0
Received 0 Likes on 0 Posts
Default

Sounds like it will go too fast.

150 in 28 feet. Please point your weapon west.
Ron P is offline  
Old 10-12-2002, 11:11 AM
  #19  
Cat & Mice
Guest
 
Posts: n/a
Default

Cobra, Here is the Dyno chart from 3000-6000
Attached Thumbnails How much Faster will My boat will be with new Power??-406chart.jpg  
 
Old 10-12-2002, 06:37 PM
  #20  
Registered
 
Join Date: Jan 2001
Location: PA and MD
Posts: 1,461
Received 2 Likes on 1 Post
Default

Nice Curves!.. Talk about a flat TQ curve.

If I use your old data there is 15% slip and new engines=142.5mph.

If I use light cat (6000lbs) and 5% slip, new engines=146mph.
(1.26/34"/5850rpm)
or 145mph with 1.36/36"/5942rpm.

Same ol' thing --TEST and TRIAL.
cobra marty is offline  

Quick Reply: How much Faster will My boat will be with new Power??


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

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.