Classic SeaCraft Community  

Go Back   Classic SeaCraft Community > Recovered Threads
FAQ Community Calendar Today's Posts Search

Notices

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 06-11-2015, 09:07 PM
23acrplanes 23acrplanes is offline
Recovered
 
Join Date: Feb 2014
Posts: 14
Default

Quote:
Originally Posted by Bigshrimpin View Post
wow . . . I'm amazed that twin f150's can't turn more than 17p wheels. I'll bet the motors are too deep.

I lowered them 2 holes because it was chine walking too much..... I will probably raise them back up. When I lowered it it def slowed the boat down quite a bit.
Reply With Quote
  #12  
Old 06-11-2015, 09:08 PM
23acrplanes 23acrplanes is offline
Recovered
 
Join Date: Feb 2014
Posts: 14
Default

Quote:
Originally Posted by 23acrplanes View Post
I lowered them 2 holes because it was chine walking too much..... I will probably raise them back up. When I lowered it it def slowed the boat down quite a bit.

I saw 47mph today at 6100rpm with tabs in, and a heavy load.
Reply With Quote
  #13  
Old 06-18-2015, 09:41 PM
doodlebug doodlebug is offline
Senior Member
 
Join Date: Dec 2006
Location: tampa fl
Posts: 137
Default

You went the wrong way lowering the motors. when I was running 250's on mine the higher I moved them the better it handled. 68mph on gps ran smooth as silk.
__________________
1979 23 SCEPTRE TWIN 150 Opti's/GAUSE BUILT BRACKET
Reply With Quote
  #14  
Old 06-18-2015, 11:16 PM
DonV DonV is offline
Senior Member
 
Join Date: Jul 2004
Location: Apollo Beach or Islamorada
Posts: 3,488
Send a message via ICQ to DonV
Default

Duane you're killing me!!!!! 68 mph is some serious pucker power!!

I've had mine at 51 mph on the GPS with perfect conditions and that was good enough for me!!! 68 mph on a 23' SeaCraft, let me think about that for a minute. I've been on a 17' Hydra-Stream at 108 mph and I told the owner just take me to the shore, I'll walk home.....
Reply With Quote
  #15  
Old 06-19-2015, 06:52 AM
wattaway2 wattaway2 is offline
Senior Member
 
Join Date: Oct 2011
Location: Ft.Lauderdale,Fl.
Posts: 611
Default

Been told there can be a big difference in the way a boat response to twins depending on what direction the counter rotating engines are located if they rotate inward or outward --- what works for the 23?
Reply With Quote
  #16  
Old 06-19-2015, 12:46 PM
kmoose kmoose is offline
Senior Member
 
Join Date: Jul 2006
Location: Ocala, Florida
Posts: 1,817
Default

Quote:
Originally Posted by doodlebug View Post
You went the wrong way lowering the motors. when I was running 250's on mine the higher I moved them the better it handled. 68mph on gps ran smooth as silk.
Mine had twin 250s on it with the previous owner. Not sure how fast it got as the chine walk was so bad you couldn't hold it to find out. Now I run half the HP and still get 40+ knots fully dressed.

Here's a pick of the twins.....
Attached Images
 
__________________
[b]The Moose is Loose !
Reply With Quote
  #17  
Old 06-20-2015, 05:03 AM
Old'sCool Old'sCool is offline
Senior Member
 
Join Date: Jun 2006
Location: Charleston, SC
Posts: 2,122
Default

Quote:
Originally Posted by kmoose View Post
mine had twin 250s on it with the previous owner. Not sure how fast it got as the chine walk was so bad you couldn't hold it to find out. Now i run half the hp and still get 40+ knots fully dressed.

Here's a pick of the twins.....
dayummmm........😱
Reply With Quote
  #18  
Old 06-23-2015, 05:16 AM
doodlebug doodlebug is offline
Senior Member
 
Join Date: Dec 2006
Location: tampa fl
Posts: 137
Default

When I originally set mine up with the 250's they were turning in. Way too much transom lift would dance on the Back end and would not lift the bow 10 mph slower. Don, we ran from the St Pete peer to the Gandy one day wide open, needed ac it was hot out there. Not a wiggle smooth as could be. Miss running them monsters but not feeding um
__________________
1979 23 SCEPTRE TWIN 150 Opti's/GAUSE BUILT BRACKET
Reply With Quote
  #19  
Old 09-20-2015, 09:17 AM
Briguy Briguy is offline
Senior Member
 
Join Date: Apr 2002
Location: Sarasota, Fl
Posts: 976
Default

You need a set of stern lifting props.
__________________
Capt. Brian

Reply With Quote
  #20  
Old 09-20-2015, 02:21 PM
77SceptreOB 77SceptreOB is offline
Senior Member
 
Join Date: Jun 2009
Location: Columbia, SC.
Posts: 1,611
Default

I have a friend with a 23' SeaCraft "Savage" model which is basically a Sceptre that has had the windshield removed and a center console added. He runs that exact setup (twin Yamahas F150's) the boat seems ass heavy and sits at rest pretty deep in the water in the stern. Very noticeable, even with the weight of the cabin up front. He does have an Aluminum hardtop/tower though.

The hole shot is pretty strong, but not 2 stroke strong due to the weight. He gets about 50 mph at WOT which I think it pretty good. I don't know what RPM he is running at WOT. But based on the hole shot and the WOT, he might be a candidate to run a slightly lower prop pitch to help with the COG/weight so far back as his motors are mounted on a non-floatation bracket. IMO, its border line too much weight back there.
__________________
1977 SeaCraft 23' Sceptre W/ Alum Tower & Yamaha 225
www.LouveredProductsUnlimited.com
Reply With Quote
Reply


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 11:49 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
All original content © 2003-2013 ClassicSeacraft