Go Back  Offshoreonly.com > Technical > Drives and Lower Units
TRS Nose Cone, Yea or Nay >

TRS Nose Cone, Yea or Nay

Notices

TRS Nose Cone, Yea or Nay

Thread Tools
 
Old 09-24-2011 | 03:20 PM
  #11  
Rookie's Avatar
Registered
20 Year Member
 
Joined: Jan 2003
Posts: 6,018
Likes: 1,521
From: Grand Rapids, MI
Default

Originally Posted by IRONMAN
and the pointy ones can cause too much stern lift and prop blade cracking. on V bottoms that need positive trim. The Hydromotive ones can feed the prop more clean water and lift the bow more.
I need more bow lift, that is one reason I will probably bite the bullet and purchase some.
Rookie is offline  
Reply
Old 11-06-2011 | 08:55 AM
  #12  
Registered
 
Joined: Jan 2008
Posts: 49
Likes: 1
From: Mooresville, NC
Default Post a pic of your drive...

Originally Posted by 1bad38scarab
I just molded on a set of bravo high speed nose cones on a pair of my trs I'm sure they will help a little bit,
but they look really cool resembling a speedmaster, I also cut off the factory trs skeg and welded on some new longer sleek sharpered more modern looking skegs I doubt will see any mile per hour increase but they sure look baad hanging of the back of the boat. christian

Post a pic of your drive after the work. Mine needs a skeg now and Id sure like to see what yours looked like after the nose cone addition and skeg replacement. Thanks.

Last edited by Hondo Jet; 11-06-2011 at 08:58 AM.
Hondo Jet is offline  
Reply
Old 11-11-2011 | 03:45 AM
  #13  
Audiofn's Avatar
Charter Member #232
20 Year Member
Charter Member
Super Moderators
 
Joined: Oct 2000
Posts: 18,417
Likes: 6
From: Carlisle, MA USA
Default

IMO I would take off the other nose cone at that speed. I had my Formula running with out them. I blew a drive and my replacement drive had a cone on it. I lost a couple MPH. This was on a Formula 311.
__________________
Put your best foot forward!
Audiofn is offline  
Reply
Old 09-25-2012 | 10:34 AM
  #14  
oreo11zeus's Avatar
Registered
 
Joined: Mar 2005
Posts: 647
Likes: 0
From: Sarasota, FL
Default TRS - LH with Hydromotive nosecone - for sale

TRS Nosecone - I have rebuilt TRS LH with a nosecone, thinking of selling it - Yes, let me back up that statement about external steering, its not very good without the rams -

I have a set of TRS drives (LH & RH) in great condition and one that I just blew the lower on (non-cone RH). Thinking about going without the cones until I get my external steering rigged - so taking offers on a LH with cone - or a LH without in good condition - PM for pix
oreo11zeus is offline  
Reply
Old 09-27-2012 | 11:40 AM
  #15  
bcfountain's Avatar
Registered User
 
Joined: Apr 2007
Posts: 1,474
Likes: 0
From: prince george,va
Default

not to step on anyones thread,but somebody tell me about the issues w nose cones and the steering.i have external hyd steering on my 10meter ex.
bcfountain is offline  
Reply
Old 09-27-2012 | 02:41 PM
  #16  
Rookie's Avatar
Registered
20 Year Member
 
Joined: Jan 2003
Posts: 6,018
Likes: 1,521
From: Grand Rapids, MI
Default

Originally Posted by bcfountain
not to step on anyones thread,but somebody tell me about the issues w nose cones and the steering.i have external hyd steering on my 10meter ex.
By adding a nose cone to the drive you are essentially putting material in front of the pivot point of the drive. Adding extra side loading stress. Normal conditions the the drive and most of the stresses are trailing the pivot point. That is how I always thought of it.
Rookie is offline  
Reply
Old 09-27-2012 | 04:46 PM
  #17  
Registered
15 Year Member
 
Joined: Feb 2008
Posts: 6,755
Likes: 152
From: Connecticut
Default

Ok, good thread....94 Cig Top Gun with 700 HP a side and running about 80. It has TRS drives and hydraulic steering too.

You guys recommend the nose cones???? thanks.....
kreed is offline  
Reply
Old 09-28-2012 | 07:35 PM
  #18  
Registered
 
Joined: Sep 2010
Posts: 673
Likes: 0
From: Long Island NY
Default

I have a 35ss Sonic with 700sc hp running mid 80's bravo drives , prop shafts are low (7" below bottom of boat ) I added imco nose cones and lost 3 mph from the extra drag . IMO if the prop shaft is deep like most older v bottoms they do more bad than good
billy boats is offline  
Reply
Old 09-29-2012 | 09:51 AM
  #19  
BDiggity's Avatar
Registered
 
Joined: Feb 2005
Posts: 1,801
Likes: 33
From: Palm Bay FL
Default

wish i would have known this when i had my drives redone. i would have had the cones knocked off. oh well, since the boat since on land 99.9% time, they look cool.

BDiggity is offline  
Reply
Old 10-03-2012 | 11:22 AM
  #20  
oreo11zeus's Avatar
Registered
 
Joined: Mar 2005
Posts: 647
Likes: 0
From: Sarasota, FL
Default Nosecone mods

According to Todd at Hydromotive, the speed improvement is 1 MPH@70 and 2 MPH@80 I am torn as I have a spare with a nosecone so I put it up for sale on eBay - its a pain if you want to swap out a spare drive and need more inventory http://www.ebay.com/itm/221133311109...84.m1423.l2649

The real advantage is the prop slip goes from an average of 15% to 12% per Todd at Hydromotive. better MPG
oreo11zeus 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.