23cc w/ 200HPDI Performance?

stoney · #1 09-09-2008, 08:18 AM

I have a 23 sf with a 200 yami OX66. Top speed is 39mph. It could be higher if I went for a different prop. Top speed is not important to me. I cruise at 4000 rpm, 30 mph, 3+ mpg. The yami is bullit proof. I had a 225 ocean pro, but it threw a rod. The 225 was 3 mph faster, but 1.8 mpg hurt.

peterb · #2 09-09-2008, 09:28 AM

Stoney,

Those are some pretty imressive numbers that you have there. I have been told that the HPDI's should be about 20% better on fuel than the OX66's. If that is true than a single HPDI could get over 3.5 MPG at cruise.

With my twin 200 OX66's I get about 1.6 to 1.8 MPG.

(Stoney, BTW I saw you and your buddy in August on GSN fluking).

Peter

stoney · #3 09-09-2008, 01:13 PM

Peter,
I believe the mileage number. Not because of the navman F3100, which is on it's second sender and due to be trashed because they won't replace the non working display, but because I travel 60 miles fishing and put in 20 gallons somtimes 15 gallons for the last 3 years. I believe my boat is a lighter 23SF than most I've seen. I removed the livewell in the back relpaced the transom with Coosa 26, have a 100 gallon tank, and I think the foam is dry. Sitting at the dock the corner of the transom is only in the water 1/2" and the splash well drains are 3" above the water. Sitting next to Scott's boat mine sits 3" higher. It also feels lighter than scott's when riding in it, but that might be because he drives fast and me and my herniated disc's like slow rides. I also have seen the hull thickness cores that other people cut out of the hull and mine is not that thick, maybe 5/16" thick at most. So I have a light weight 23SF but I love it with the 200 Yami. I just need more fishing time.
http://i15.photobucket.com/albums/a3...2seacrafts.jpg
http://i15.photobucket.com/albums/a3...y/transom2.jpg

Old'sCool · #4 09-09-2008, 01:42 PM

My thru-hull ducer hole cut-out is 5/8" thick. 1973...What year is yours??

stoney · #5 09-09-2008, 01:58 PM

I believe it is a 73. This is all I have for a nameplate,
http://i15.photobucket.com/albums/a3...y/NAMEPLTE.jpg

Old'sCool · #6 09-09-2008, 04:02 PM

I can't read the HP number but I thought the old 23's were rated for 400. I still don't think a single 200 w/bracket would be "satisfying"

peterb · #7 09-09-2008, 07:34 PM

They are rated for up to 400 HP. The Savages are rated for up to 500 HP.