20 mph top speed help

[dinbody]

I have a 2005 suncrusier 22' 90 hp 4 stroke honda prop is 14 x 13 p. My max speed is 20 mph 5100 rpm. How can I get more speed?

[HandymanHerb]

Going down hill or on the trailer LoL

[dinbody]

up hill both ways in the snow LOL

[wrenchendave]

mine is a 21ft. w/ 90 optimax 27mph wit 13 3/4 x 15 at 5700 i dont know what is difference w/ 4 stroke

[margaritaman]

Get a bigger motor?

[BassFrequency]

mine is a 21ft. w/ 90 optimax 27mph wit 13 3/4 x 15 at 5700 i dont know what is difference w/ 4 stroke

the difference is, I can out run a 4 stroke 90 with my 2 stroke 60

[toondog]

How can I get more speed?

Drop it from a crane???



In all seriousness, something is not right. Wrong prop, too much weight, too much weight up front, throttle adjustment or maybe somethings not right with the engine.
Your not dragging the anchor are you?

Full Throttle RPM Range 5,300-6,300 RPM

This is the rpm range you should be running in. If you can get your rpm up in this range, your boat will easily push you along in the mid 20s.

[dinbody]

thank you for your suggestions, funny you mention the achor. I did that last week. I felt stupid. Weight is not an issue so I check into props.

[Ghost Rider]

Bass Frequency says he can out run a 4 stroke 90 with his two stroke 60. Horse Power is horse power so how can that be. I know that when you compare CC'S the four strokes are much larger to make the same amount of horse power. But 90 horse is 90 horse. Am I missing something here.

[Parasympathetic]

Bass Frequency says he can out run a 4 stroke 90 with his two stroke 60. Horse Power is horse power so how can that be. I know that when you compare CC'S the four strokes are much larger to make the same amount of horse power. But 90 horse is 90 horse. Am I missing something here.

Torque be the difference.

[timmac]

I have a 2005 suncrusier 22' 90 hp 4 stroke honda prop is 14 x 13 p. My max speed is 20 mph 5100 rpm. How can I get more speed?

Are you using a aluminum prop, the reason I am asking is I just replaced my aluminum with a composite from piranha props, stayed basically the same dia and pitch but the piranha increased my rpm.s and speed, you might have the same result.

Here is a link to the piranha props for the 90hp Honda.

http://www.piranha.com/enginelist.php?m ... ubmit.y=15

[Heatman]

dinbody, I have an '03 Suncruiser 22' with a 90hp Yamaha 2 stroke. It runs right at 23mph per GPS with just me an a 13 5/8"x13P prop at 5,400 rpm's. I only have the 23" logs. My outboard is a bit lighter than yours but I added a HEAVY 2nd battery back there so we are probably about the same weight back there.

You may be able to gain a bit by changing props and getting the rpm's up a little closer to 5,500.

[Heatman]

Bass Frequency says he can out run a 4 stroke 90 with his two stroke 60. Horse Power is horse power so how can that be. I know that when you compare CC'S the four strokes are much larger to make the same amount of horse power. But 90 horse is 90 horse. Am I missing something here.

Torque be the difference.

And weight

[toondog]

Bass Frequency says he can out run a 4 stroke 90 with his two stroke 60. Horse Power is horse power so how can that be. I know that when you compare CC'S the four strokes are much larger to make the same amount of horse power. But 90 horse is 90 horse. Am I missing something here.

Am I missing something here?

Well yea....his secret weapon. He turns all his sub woofers rear facing and cranks up the Motley Crue.

[Parasympathetic]

Bass Frequency says he can out run a 4 stroke 90 with his two stroke 60. Horse Power is horse power so how can that be. I know that when you compare CC'S the four strokes are much larger to make the same amount of horse power. But 90 horse is 90 horse. Am I missing something here.

Torque be the difference.

And weight

Tis true. And with some builders, weight is becoming less and less of a factor lately. The current difference between Yamaha's 90hp 4 stroke and Evinrude's E-tech is now only about 50 lbs, depending on which publication you read. But even 50 lbs can make a difference.