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33T Yamaha Performance Bulletin

Old 10-25-2017, 12:09 PM
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Default 33T Yamaha Performance Bulletin

Anyone have a copy of the archived Yamaha performance bulletin for a 33T Contender with twin 250's?

The information is no longer available through their website.....
Old 10-25-2017, 01:39 PM
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I don't have a copy but I know it is a low 50s boat which is not bad. I heard it is very slow to plane with the livewells full and mpg really suffers as you load it. Still a great hull though.
Old 10-25-2017, 01:56 PM
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I absolutely love that hull and spent a ton of time on one for about 5 years, but I truly believe she needs at least a pair of 300s to be efficient and run well with 350s being the ideal choice and sweet spot for that boat.

I know i'm sorry not the answer/performance bulletin you were looking for, but the boat eats when she has the power.
Old 10-25-2017, 02:00 PM
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Thanks, was hoping some one had a downloaded copy or photo of the original bulletin for reference. Frustrating that Yamaha pulled the archive info.
Old 10-25-2017, 05:32 PM
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I have a 35st with trip F300s and have been on old 33Ts with trip 275 Vrods. Based on experience, I would have to believe that twin 250s on an old 33T would be painfully underpowered. With any kind of load that combination would suffer.
Old 10-25-2017, 05:48 PM
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Post #15

https://www.thehulltruth.com/boating-forum/327853-contender-33t-power-trip-250s-twin-350s.html
Old 10-26-2017, 05:57 AM
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I appreciate all the info. I currently am running this set up and actually I am quite pleased with the overall performance. I simply would like to have a copy of the actual bulletin that Yamaha produced and has since removed from their site. It's not a "fast" boat by most peoples standards, but it certainly performs well and gets what I would consider to be pretty good fuel economy. I agree with everyone's comments regarding this hulls performance with more power and will likely upgrade some day but have no desire to do trips.
Thanks again, still hoping someone may have a copy of that bulletin available......
Old 10-26-2017, 06:19 AM
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I can't open the report, but I know from past emails the report with twin F250 3.3L motors showed 21 pitch Yamaha SWS turning 5900 RPM at 53 MPH

Sucks yamaha took all that info down. I wonder if you email contender if they might have it.
Old 10-26-2017, 01:47 PM
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Thanks Ken,

I'm with you, it was really nice reference material......Not sure what the logic was in removing it.
Old 10-26-2017, 02:30 PM
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OP what is your endgame here? Tire kicking for your next boat or?? Maybe the info you need is available outside of the performance report - It doesn't take a lot of imagination to see that 2 x 250 could be somewhat light in the britches on a 33T with an offshore load.
Old 10-26-2017, 04:28 PM
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Originally Posted by HTJ View Post
OP what is your endgame here? Tire kicking for your next boat or?? Maybe the info you need is available outside of the performance report - It doesn't take a lot of imagination to see that 2 x 250 could be somewhat light in the britches on a 33T with an offshore load.
See a couple posts a above. He already has the boat. Sounds like he just wants to compare to real life and have it for his files.
Old 10-26-2017, 04:58 PM
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If youre tourney loaded, no way youre getting 50mph. 31T w/ half tower, riggers, full bahamas load with SS 19p it was a 44-45 mph boat. I dont see the 33T doing any better. If you put the tabs down that boat isnt doing over 40mph w/ full load. I dont know what some of you guys mean by full load but a full load for my boat is 3 stern livewells full, 2 back fish boxes full to top with ice. Coffin box full of ice and food, drink cooler full of ice and food, 2 front fish boxes full of dive gear, console full, front center box full, forward box under coffin full, 310g of fuel, full freshwater tank, ALOT of rods, tackle, bait, and 5-6 people.

Last edited by Gatorzone19; 10-26-2017 at 05:12 PM.
Old 10-26-2017, 05:42 PM
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Originally Posted by nautiboyz View Post
See a couple posts a above. He already has the boat. Sounds like he just wants to compare to real life and have it for his files.
To myself
Old 10-26-2017, 06:57 PM
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The 2006 33T with trip 275 vrods referenced above runs 40 at 4500 and 0.8-0.9 Gulf loaded. I don’t see how anyone is seeing the anywhere near the numbers alleged. I previously had a 31T with 350s and I think it would be a bit of a dog with 250s even
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Old 10-26-2017, 07:20 PM
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Originally Posted by nautiboyz View Post
See a couple posts a above. He already has the boat. Sounds like he just wants to compare to real life and have it for his files.
Thank you...... The point of this post was to get my hands on Yamaha's actual performance bulletin information. They produce these things for a reason and they are very useful tools. Looking for data, not opinions.

Ken, thanks again. From what I recall I believe you are spot on with your info........

Last edited by seaveeche; 10-26-2017 at 07:53 PM.

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