top speed for 135 v-6 merc

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dutch135

Petty Officer 2nd Class
Joined
Jun 23, 2002
Messages
143
Does anybody else have a similer boat to mine, and if so what do they do for top speed? We usually don't load the boat with a lot of gear, just the necessities and passengers. I can break 50 with myself and less than half a tank of fuel. I would be interested in hearing what other SeaRay outboards do. Thanks again.<br /> :cool:
 
S

Spidybot

Lieutenant Commander
Joined
Apr 4, 2002
Messages
1,734
Re: top speed for 135 v-6 merc

Please state your propeller dimensions and what rpm you reach on WOT.<br /><br />The mentioned top speed sounds close to what you can expect for your setup, but minor adjustments may improve.<br /><br />It's always a qeustion of compromise between acelleration and top end.<br /><br />If you remove as much weights as you can, trim perfectly and have best possible conditions, a 23" pitch theoretically would provide for speeds 52-55 mph.<br /><br />Check Wisdom of Propellers to learn all about it.
 
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dutch135

Petty Officer 2nd Class
Joined
Jun 23, 2002
Messages
143
Re: top speed for 135 v-6 merc

50 mph happens with the stainless 19pitch prop, at about 5200 rpm wot. I also use a 17 pitch aluminum prop for skiing, better hole shot for me and my son to get up. but that prop tops out about 45 with wot rpm of about 5800. I am just more concerned that the engine is doing somewhere close to what it should be doing. One shop told me my spark advance was advanced too far and after they set it back i lost any and all performance, so i put it back where it was! <br />a couple years ago i tried out a High 5 prop, WOW, it was awesome! but,, out of my budget. :cool:
 
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glenns

Cadet
Joined
Jun 23, 2002
Messages
7
Re: top speed for 135 v-6 merc

I have the same boat package(and same overheating problem as discussed below). 50mph with no one else on board with stock prop @5800 rpm. Great boat/motor combo. If I figure out the problem with the telltale I will keep it forever.
 
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MIKE F

Petty Officer 1st Class
Joined
Aug 30, 2001
Messages
313
Re: top speed for 135 v-6 merc

dutch135<br />How are you determining your speed? GPS or speedometer reading ?
 
D

dutch135

Petty Officer 2nd Class
Joined
Jun 23, 2002
Messages
143
Re: top speed for 135 v-6 merc

Yea yea yea,, i know what you are going to say. I say it all the time to the guys with thier snowmobiles that go 110 mph,, let's get them under the gun first! I am only using my boats speedo,, but that is all I have access to. If I am off a couple MPH I am not too worried about it, I know I am going faster when it says 50 than when it says 40!<br /> :cool:
 
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