RedRegulatorForums  

Go Back   RedRegulatorForums > Engines/Power

Reply
 
Thread Tools Display Modes
  #1  
Old 08-09-2018, 09:41 AM
cletus9000 cletus9000 is offline
Newbie
 
Join Date: Jun 2013
Posts: 68
Default Repowering 29 Classic with DF300s

Decided to bite the bullet and repower my boat this fall. Going from F250s approaching 2,000 hours with the DF300s. Really looking forward to the electronic controls with better ability to control RPM as well as maybe, just maybe a little better fuel consumption with more HP in the back. Any tips on this setup in terms of propping etc would be greatly appreciated. Guess this means I'm hanging on to this boat for a while longer!
Reply With Quote
  #2  
Old 08-09-2018, 04:50 PM
LeftHook LeftHook is offline
Enthusiast
 
Join Date: May 2007
Location: Phoenixville, PA
Posts: 639
Default

I am standing and teetering on the fence myself with this one. VERY interested in the responses you get.....
__________________

TEAM LEFT HOOK
OCYC & OCMTC
2006 29FS
Reply With Quote
  #3  
Old 08-10-2018, 11:34 AM
gary999 gary999 is offline
Enthusiast
 
Join Date: Jun 2011
Posts: 1,385
Default

On my 26 I found the zukes like a 16" diameter prop. I am running Powertech LFS4 20". PT makes the LFS props to go on zukes. An 18" would be close for your application if running heavy. A Zuke 3x16x18 may also work. Many are running the merc eco's with good results. I found the 4x15.25x22 Zuke slipped too much. My old Rev4's sucked.
__________________
2002 26 FS with 2015 DF300AP Zukes.
Reply With Quote
  #4  
Old 08-10-2018, 02:17 PM
cletus9000 cletus9000 is offline
Newbie
 
Join Date: Jun 2013
Posts: 68
Default

Thanks Gary, that's helpful.

Lefthook I'll keep the group posted on how it goes. I usually fish the Chesapeake through late December once I pull the boat back from the short so should have a window in late fall to early winter to get a good read on the engines.
Reply With Quote
  #5  
Old 08-15-2018, 06:23 PM
gary999 gary999 is offline
Enthusiast
 
Join Date: Jun 2011
Posts: 1,385
Default

https://www.thehulltruth.com/boating...00-marlin.html
__________________
2002 26 FS with 2015 DF300AP Zukes.
Reply With Quote
  #6  
Old 08-16-2018, 09:19 AM
cletus9000 cletus9000 is offline
Newbie
 
Join Date: Jun 2013
Posts: 68
Default

Thanks, Gary. I'll read the thread on THT
Reply With Quote
  #7  
Old 12-17-2018, 04:30 PM
cletus9000 cletus9000 is offline
Newbie
 
Join Date: Jun 2013
Posts: 68
Default

Picked the boat up Friday and ran it for a a few hours in the rain this weekend. Still working out the kinks and have an order in for the LSF4 props pitched 19 degrees per the recommendation of Ken at Prop Gods. Seemed like the boat got to full RPMs a little easy and could do with a little more stern lift vs the Zuke props that came with the engines. Boat gets over 40 knts now running hard, which it could never touch before. Efficiency seems a little better too and I'm interested to see if the (hopefully) ability to plane at lower speeds / RPMs with the new props can bump that up a little. Was getting 1.3 gallons per nautical mile at an easy 28 knots. New props and a getting the trim just right may be able to squeeze a little more... Old engines were about 1.2 in similar conditions.
Reply With Quote
Reply

Thread Tools
Display Modes

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
Forum Jump


All times are GMT -4. The time now is 04:59 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
2017