Re: 1988 V20 with 225 Honda
 

could it be timing?

Re: 1988 V20 with 225 Honda
 

Well I did not see what year your boat is??

But you say its 2820# ??

Dry weight from factory on a 1985 CC, is 1920# you are 900# over weight!!

According to Loadrite trailers, there single axle bunk trailer is 675 to 700# depending on which one you get.

trailer 700 + motor 610= 1310 + boat 1920 = 3230 + gas 360 = 3590 + mis 200 = 3790 + T top 130 = 3920 total weight

4820 - 3920 = 900# over what you should be??

Better check for a hold of dead mackrel!! :o

Re: 1988 V20 with 225 Honda
 

Jackman, it does sound like you may have some extra weight there, but add T-Top, anchors, batteries and other rmisc. items can add up...


as for as your top-end, I'm conviced repropping will get more speed and allow your Honda to spin up to it's max RPM...did you ever get in touch w/ these guys??...they make props FOR honda and are very knowledgable about matchin' props to various rigs...they made mine and it's gettin' all there is from my motor...very happy w/ it ;) ;D

http://www.ptprop.com/

click on ''need help?"...

Re: 1988 V20 with 225 Honda
 

I call the prop place you suggested. Talked to Jeff. He told me I should go to a 15 or 14 pitch prop (same 14 1/4 diameter). He said that would get the RPMs up there, and put less of a strain on the motor. He said to stay with the 4 blade. Only problem is his props were $523 !!
Checked around the net and the closest prop I could come up with was a 14 3/4 X 15 - aluminum 4 blade prop for ~ $ 130.
Not sure what to do. I do think the boat is too heavy (for some unknown reason) - if it were 900 lbs lighter, I'm sure the 17 pitch prop would be ok.
???

Re: 1988 V20 with 225 Honda
 

Simple math should tell you that you should not have to drop to a 15" pitch prop to solve your problem. If anything you should need a 21" or 23" pitch to avoid over reving. With a 15" pitch and a 5500rpm red line your max speed will be some where in the mid/low 30"s.

Re: 1988 V20 with 225 Honda
 

I suggest that you should test the boat out on a calm day with a light fuel load and just you onboard. This should give you an indication if your problem is weight sensitive. The first test you listed you were carrying 900lbs+ 360lb in passengers and 360+lb in fuel, on the second 600lbs+ plus & fuel. Running alone with a light fuel load you could be as much as 1000 lbs lighter! If this does not make a big differance in the speed/rpm than your problem is probably not a weight related one.

Re: 1988 V20 with 225 Honda
 

Thanks for all your comments.
The red line on my motor is 6200 rpm. WOT only gets me to 5300. The prop people tell me that I am bogging down the engine going at WOT and only getting 5300 rpm.
After checking the web to see what props are available for my motor, I see very few props that have a pitch less than 17. Most are 17 to 21!
Still think there is something wrong with the boat.

Re: 1988 V20 with 225 Honda
 

I will take the boat out with just me and a little fuel. Will let you know what happens.

Re: 1988 V20 with 225 Honda
 

I have a 14 X 17 three blade prop on my 90 hp and can get 4800 rpms trimmed up. I think a 225 should need a larger prop than this.

Re: 1988 V20 with 225 Honda
 

Going to Denver for a week to visit my son and his family. Be back on the 8th. Will do some more testing on the V20 them.
Thanks for all your help.