Go Back  RCU Forums > RC Boats > Speed - RC Nitro Boats
Reload this Page >

WHAT SIZE MOTOR

Notices
Speed - RC Nitro Boats For all your rc nitro fuel burning boating needs.

WHAT SIZE MOTOR

Old 12-25-2006, 05:08 PM
  #1  
cwaterhunter
Senior Member
Thread Starter
 
cwaterhunter's Avatar
 
Join Date: Nov 2006
Location: middletown, RI
Posts: 585
Likes: 0
Received 0 Likes on 0 Posts
Default WHAT SIZE MOTOR

hi question for all of you men and women in the know,, i have a 41 inch glass deep vee hull iam thinking on installing a HPI , 25 big block, i looked up the specs on it,, it hads 2.5 hp, think that would be enought?thanks mark
Old 12-25-2006, 06:04 PM
  #2  
Believe It
Banned
 
Join Date: Sep 2006
Location: Blue Ridge, GA
Posts: 1,344
Likes: 0
Received 0 Likes on 0 Posts
Default RE: WHAT SIZE MOTOR

IMO a 21 probably doesnt have the torque to get a 41" mono/deep v movin as good as it would with a 45.


then again if it was me i wouldnt put anything smaller then a .65/.67 in there.
Old 12-25-2006, 06:30 PM
  #3  
piper_chuck
My Feedback: (12)
 
piper_chuck's Avatar
 
Join Date: Jun 2004
Location: Columbia, SC
Posts: 8,039
Likes: 0
Received 0 Likes on 0 Posts
Default RE: WHAT SIZE MOTOR

Yup, it's definitely big for a .21 size engine. This size would easily handle a .45 and a .67 probably wouldn't be a stretch either. It would help to know which hull it is.
Old 12-25-2006, 06:36 PM
  #4  
mopartybob
 
Join Date: Jun 2006
Location: So.San Francisco, CA
Posts: 2,207
Likes: 0
Received 1 Like on 1 Post
Default RE: WHAT SIZE MOTOR

I'm runnin a k&b 91 in my 40" prather,soon to be completed,(waiting on my pilots license ),the name of this boat is ...........you guessed it.....overkill......[:-]
Old 12-26-2006, 06:51 PM
  #5  
Hydro Junkie
 
Hydro Junkie's Avatar
 
Join Date: Nov 2004
Location: Marysville, WA
Posts: 10,357
Received 125 Likes on 119 Posts
Default RE: WHAT SIZE MOTOR

I'd drop a .67 in that deep vee. They are used in the 1/8th scale hydros which range from 40" to 53" long, so as Piper chuck said "it's not a stretch".
Old 12-26-2006, 09:27 PM
  #6  
cwaterhunter
Senior Member
Thread Starter
 
cwaterhunter's Avatar
 
Join Date: Nov 2006
Location: middletown, RI
Posts: 585
Likes: 0
Received 0 Likes on 0 Posts
Default RE: WHAT SIZE MOTOR

ill guess ill wait till i can find one i also have a dumas glass 31 inch deep vee the motor should be ok just air cooled.. iam also working on a jet stream i removed the 10 installed a aquacraft 15.. and removed the silly gear reduction. i also have two trazzas 2.5 one reg one and a R,might install one of those and be like a nitro v.well anyways it keeps me off the streets lol
Attached Thumbnails Click image for larger version

Name:	Ig12792.jpg
Views:	4
Size:	28.5 KB
ID:	584091   Click image for larger version

Name:	Ez83243.jpg
Views:	9
Size:	16.7 KB
ID:	584092  
Old 01-07-2007, 08:44 PM
  #7  
gofast53
Senior Member
 
gofast53's Avatar
 
Join Date: Apr 2004
Location: PUKEKOHE, NEW ZEALAND
Posts: 245
Likes: 0
Received 0 Likes on 0 Posts
Default RE: WHAT SIZE MOTOR

I have a 41" vee hull with an ASP .46 and it is too sluggish for me (mid 30's). Hoping to refit it with a .67 to squeeze some more speed out of it. Therefore I reckon you will be well and truley under powered with your intended setup.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.