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

New to me 27 contender 200 hpdis props?'s

Notices
Like Tree1Likes
  • 1 Post By cntdr

New to me 27 contender 200 hpdis props?'s

Old 04-25-2018, 06:37 PM
  #1  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2014
Posts: 59
Default New to me 27 contender 200 hpdis props?'s

Well last week i pulled the trigger on another members 2001 27 contender with 200 hpdi's! though i am very happy with its condition i have developed a few questions as it relates to performance/ motor height/ prop sizing....

here's the deal, we ran the boat in south florida in salt water and it made 5200-5300 rpms with about 70 gallons on board and 2 people in windy 2' chop. the top speed on gps was 51-52 mph and had impressive fuel econ. i brought the boat home to austin texas and put it on my local lake to play around and get some run time in before the fishing season here begins. now im only turning 4800rpms and have max speed at 48 mph on the gps with the ssame fuel load but glass smooth water. I expected to see some loss in rpms but i didnt expect to loose 500. i suspect this is a symptom of being over propped to start and the water density and slight elevation change (about 1000 ft) may have exacerbated the overloading.

other details that may be helpful.... the boat is equipped with wedges, motors are mounted in the bottom hole, running yamaha sws II 21p (i was told 15 1/4 dia but havent verified) fuel capacity is standard 210, 85 gallon livewell, and a second leaning post/ livewell (that ill be removing after this season) I am also considering adding the forward reserve tank as a winter project, guess we will see how the range feels this season before i commit...

I would love to hear what other owners think about this setup, should i re prop to 19p? what brand/ model are you having the best results with? I am not overly concerned with top speed but more so fuel economy, solid running in all weather conditions, and motor longevity.

i have a set of power tech 21p by 14" 4 blades that i am gonna try out but i dont think there will be much change.
TheCaribbeanCowboy is offline  
Old 04-25-2018, 06:38 PM
  #2  
Admirals Club Admiral's Club Member
 
Join Date: Feb 2011
Location: Tarpon Springs
Posts: 4,642
Default

Congrats on the new ride
76 Mako 23 is offline  
Old 04-25-2018, 06:41 PM
  #3  
Admirals Club Admiral's Club Member
 
Join Date: Dec 2004
Location: Great Harbor Cay, Bahamas
Posts: 1,312
Default

Those motors should run up to 5800 RPM. You are either overpropped or have engine problems. Call Ken at Prop Gods, he can help you.
Nice upgrade from the Cntdr 21/jet ski :-)
TheCaribbeanCowboy likes this.
cntdr is offline  
Old 04-25-2018, 07:04 PM
  #4  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Mar 2014
Posts: 59
Default


Gonna be doing some general cleanup but the boat is a little better kept than I expected.

TheCaribbeanCowboy is offline  
Old 04-25-2018, 07:06 PM
  #5  
Admirals Club Admiral's Club Member
 
Join Date: Sep 2016
Location: CT
Posts: 867
Default

I think the Yamaha SWS 19p props would work well for you, we had 21s with our OX66 setup and were only spinning 5000 RPMs. If we didn't pop one last year we probably would have dropped to the 19s.
Ct Contender is offline  
Old 04-25-2018, 07:57 PM
  #6  
Admirals Club Admiral's Club Member
 
Join Date: Sep 2003
Location: San Diego
Posts: 1,467
Default

Running 15 1/4 x 19's also. Salwater Series II 3 blade props. Best all around IMO. Congrats on your new ride.

Last edited by greenno; 05-02-2018 at 07:39 AM.
greenno is offline  
Old 04-25-2018, 08:29 PM
  #7  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2005
Posts: 1,465
Default

Originally Posted by cntdr View Post
Those motors should run up to 5800 RPM. You are either overpropped or have engine problems. Call Ken at Prop Gods, he can help you.
Nice upgrade from the Cntdr 21/jet ski :-)
That is not correct. The Yamaha specs call for WOT on the 200 HPDI to be between 4500 and 5500 rpms. I have the same engines on my Contender and they are great motors, if you can get 5000 rpms with a full load, it's propped correctly.
laguna23 is offline  
Old 04-25-2018, 08:40 PM
  #8  
Admirals Club Admiral's Club Member
 
Join Date: Aug 2014
Posts: 146
Default

Originally Posted by laguna23 View Post
That is not correct. The Yamaha specs call for WOT on the 200 HPDI to be between 4500 and 5500 rpms. I have the same engines on my Contender and they are great motors, if you can get 5000 rpms with a full load, it's propped correctly.
interesting. I have the same engines as well and I always thought that I could squeeze some more. Turn up 5300 and made it up to 51MPH with 2 people 3/4 fuel and bottom paint.
Jbello27 is offline  
Old 04-26-2018, 02:23 AM
  #9  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2007
Location: N.C.
Posts: 485
Default

Originally Posted by greenno View Post
Running 15 1/4 x 19's also. Salwater Series II 3 blade props. Best all around IMO. Gongrats on your new ride.
those are what you need
RED HEAD is offline  
Old 05-01-2018, 08:37 PM
  #10  
Senior MemberCaptains Club Member
 
Join Date: Jan 2008
Location: St. Amant, La
Posts: 641
Default

I had very good experience with 19p Mirage props. My boat would consistently run 52mph light, and occasionally 53mph. It will plane easily on one engine if light. I always ran heavy on overnighters, and they were by far the best prop I tried I have heard of wrist pin failures due over-propping. 19p are definitely the way to go.

Jay
JayLeto 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