Go Back  The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Reload this Page >

Repower 2001 Contender 25 Open with Yamaha F250s

Notices
Like Tree6Likes

Repower 2001 Contender 25 Open with Yamaha F250s

Old 06-04-2019, 06:17 PM
  #21  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2015
Location: Fleming Island, FL
Posts: 38
Default

Things you don't think about... Had to move the motors outboard by about an inch and 1/2 each.
LivingBroke is offline  
Old 06-04-2019, 06:42 PM
  #22  
Senior Member
 
Join Date: Oct 2016
Posts: 121
Default

I have a 25 Open with 3.3s and have no problems.
GC88 is offline  
Old 06-04-2019, 06:47 PM
  #23  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2015
Location: Fleming Island, FL
Posts: 38
Default

Originally Posted by GC88 View Post
I have a 25 Open with 3.3s and have no problems.
What kind of numbers do you get?
LivingBroke is offline  
Old 06-04-2019, 06:52 PM
  #24  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2012
Location: Jupiter, FL
Posts: 88
Default

I believe the v6 Yamahas need to be at least 28 inches on center. Without moving the holes, the motors will rub at full lock on 26 inch centers.
Salty Gator4 is offline  
Old 06-04-2019, 06:54 PM
  #25  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2015
Location: Fleming Island, FL
Posts: 38
Default

Originally Posted by Salty Gator4 View Post
I believe the v6 Yamahas need to be at least 28 inches on center. Without moving the holes, the motors will rub at full lock on 26 inch centers.
Sounds about right...
LivingBroke is offline  
Old 06-05-2019, 06:22 AM
  #26  
Senior MemberCaptains Club Member
 
Join Date: Aug 2004
Location: Baton Rouge, LA
Posts: 2,223
Default

I did not make any adjustments to see how much better it could get. I could turn 57-5800 rpms with 50 gallons of gas or full tanks, 500 lbs ice and 6 guys on board. At most speeds the anti-cavitation plates were just out of the water so I never bothered.
pooldoo73 is offline  
Old 06-05-2019, 07:17 AM
  #27  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2008
Location: Cedar Key, FL
Posts: 747
Default

I have a 1998 25 open (overall 28 feet) with 14-year-old 200 HPDI's and will be facing a repower in a few years. I just sent my high-pressure fuel pumps and injectors off to be serviced. I wish the hPDI line was still available because I would put a pair of new 200 on the boat in a heartbeat. With a realistic fishing load, I get about 1.9 statute miles per gallon at 40 mph.

At the risk of being rude, would you mind sharing what the engines cost you and were there any rigging peculiarities for those motors besides a wider mounting distance than the HPDI's?
m9000 is offline  
Old 06-05-2019, 07:33 PM
  #28  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2015
Location: Fleming Island, FL
Posts: 38
Default

Originally Posted by m9000 View Post
I have a 1998 25 open (overall 28 feet) with 14-year-old 200 HPDI's and will be facing a repower in a few years. I just sent my high-pressure fuel pumps and injectors off to be serviced. I wish the hPDI line was still available because I would put a pair of new 200 on the boat in a heartbeat. With a realistic fishing load, I get about 1.9 statute miles per gallon at 40 mph.

At the risk of being rude, would you mind sharing what the engines cost you and were there any rigging peculiarities for those motors besides a wider mounting distance than the HPDI's?
Only real rigging issue was the wider mounting distance (so far - she is still a work in progress). Was debating using the existing controls as I had replaced some of the cables a couple years ago but then decided I wanted a new binnacle which led to "might as well redo the cables again too". Was left with the thought of "kind of like keeping your old floor mats in a new car", Just better to have all new to start. I did leave the existing gauges and wiring harness as I had just had the gauges refurbished by another THT member (gaugesavers.com). By the way, he does excellent work and will save you a couple hundred bucks per gauge over new. I don't have a final price yet as I am still working on a few few items and don't know whether I will need new props or not, but looks to be in the $45K range (+ or -) when all is said and done. I will provide final details for all when all the work is done.
BigNiner19 likes this.
LivingBroke is offline  
Old 06-06-2019, 03:45 PM
  #29  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2015
Location: Fleming Island, FL
Posts: 38
Default

One update for today... Was told existing gauges weren't going to work. Opted for the Command link 6y8 series. So... basically a complete re-rig at this point.
LivingBroke is offline  
Old 06-06-2019, 03:49 PM
  #30  
Admirals Club Admiral's Club Member
 
Join Date: Jul 2014
Location: Stapleton, AL
Posts: 2,702
Default

Originally Posted by LivingBroke View Post
One update for today... Was told existing gauges weren't going to work. Opted for the Command link 6y8 series. So... basically a complete re-rig at this point.
Complete re rig... might as well do digital controls..... you won't regret it for a second
Albert_TT likes this.
mdees88 is offline  
Old 06-10-2019, 08:38 AM
  #31  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2015
Location: Fleming Island, FL
Posts: 38
Default




Motors are hung. Waiting on gauges.
LivingBroke is offline  
Old 06-17-2019, 10:54 PM
  #32  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2015
Location: Fleming Island, FL
Posts: 38
Default

Well for those of you interested, I got her back this weekend and have some preliminary numbers (and impressions)...
Tested on a Lake in central Florida so didn't have a lot of room to open her up and play with all the trim settings so these are "preliminary numbers". Also wondering if salt vs fresh water will make a difference.
1. WOT = 5400 RPM - 60 MPH (got squirrelly/porpoising when trying to trim up for more speed)
2. 4500-4800 RPM - 50 MPH
3. 3200-3400 RPM - 33-35 MPH - 15.5 GPH
These numbers were from memory so may not be exactly correct. I will post better ones next time I have it in "real" water.
This was using my previous 15x21P 3 bladed props. Motor is in the second to highest position. Mechanic recommended going to lower pitch prop to get the RPMs up a bit. Think about trying a 19 or 17 4 bladed prop. I welcome any thoughts on this topic.
General impressions:
1. Definitely a different feel from the HPDIs
2. The thing is a rocket out of the hole! Literally feels like it is jumping out of the water.
3. A little more bow up on take off but not enough to notice if you weren't paying attention.
4. Can hardly hear them running at trolling speed (we do a lot of that and cant wait to take advantage of that feature).
5. The weight is noticeable (again if you are paying attention), but if I didn't have any thing to compare it to you'd think that that is the way it is supposed to feel.
6. While 60 MPH was dicey, 50 was very comfortable and I can see keeping it there to shave some time off those long offshore gulf runs.
Overall, extremely happy with the way it turned out. The next issue is figuring out how to get all my analog gauges back up and running with the Command Link set up.Thanks for all the inputs everyone.


mdees88 likes this.
LivingBroke is offline  
Old 06-18-2019, 05:50 AM
  #33  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2008
Location: Cedar Key, FL
Posts: 747
Default

Thanks for the update. Glad the repower is working out well for you. I just spent about $3,800 on my HPDI high pressure fuel pumps and injectors servicing and hope to get at least 5 more years of service. Maybe by the time I must repower, the weight on 250 /300 will be 50 lbs less. The hole shot with an extra 100 HP must be fun!
LivingBroke likes this.
m9000 is offline  
Old 06-18-2019, 07:23 AM
  #34  
Senior MemberCaptains Club Member
 
Join Date: Aug 2004
Location: Baton Rouge, LA
Posts: 2,223
Default

My boat ran best full of fuel. I guess the extra weight helps to keep the bow down a little when running on the pins. Speed should be the same full fuel, ice, and 5 guys with a fishing load.
pooldoo73 is offline  
Old 06-18-2019, 09:01 AM
  #35  
Admirals ClubCaptains Club Member Admiral's Club Member
 
Join Date: Dec 2003
Location: Fort Lauderdale, FL
Posts: 6,480
Default

Since you can’t trim without it getting squirrely, you need different props, something to carry the bow. Going down in pitch will sacrifice midrange and fuel economy. If you’re getting 5400 without much trim, trimmed correctly you should be close to 6000. I played with a 25 open with twin 250 Optis and bottom paint, they would turn a 23 Bravo FS to 5800 at 64 mph and carrried the boat perfectly. No chine walking, very predictable handling. I would look for a set of those to try in the 22-23” range.
sundancekid is offline  
Old 06-18-2019, 10:22 AM
  #36  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2015
Location: Fleming Island, FL
Posts: 38
Default

Thanks. Good advice. Maybe just the 4 blades with near the same pitch would give just enough lift to limit the porpoising. I think I'll work it a little before I do anything. Didn't really have the space to play with trim tabs, engine trim together. Also had a few riders but not the normal load of ice and coolers, dive gear etc. up front. Then again didn't have the bait well full either. Not like I need WOT, a nice cruise at 50 on the way home after a long day would be just fine!
LivingBroke is offline  

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
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread