1995 26 Islander repower...........

[ocnslr]

I think 200HPDIs would be sweet.

As I've noted in other posts, I was seriously looking at a pair of Suzuki DF175s, but there was no firm price and no firm shipping date available when we were ready to do the repower.

A pair of F225s would have been nice, too..

 

[Greg B]

I have a 2000 Islander (hull extends to transom) with a Suzuki 300 and am very happy with the set up. IIRC, I was getting about 28 knot cruise at 13.5 gph using the Suzuki 16 x 18.5 prop.

 

[BobP]

Greg , what motor was on there before the Suzie?

Any performance info on old vs. new ?

 

[Greg B]

Greg , what motor was on there before the Suzie?

Any performance info on old vs. new ?

Need to play with props more but fuel economy is up substantially and top end is now around 40+ mph vs 35-36 before with the single SWS 250. Economy seems to be up about 50% but I haven't been on the boat since July.

 

[ocnslr]

Greg , what motor was on there before the Suzie?

Any performance info on old vs. new ?

Need to play with props more but fuel economy is up substantially and top end is now around 40+ mph vs 35-36 before with the single SWS 250. Economy seems to be up about 50% but I haven't been on the boat since July.

That is a great improvement, and seems right in line with our repower.

We went from a single 250HP OX66 to the twin F150s. WOT went from 30+kts to 37+ knots, so we are just a bit faster than Greg's single 300HP Suzuki. (I attribute this to the tested HP of the F150s at 160-162).

We went from a best cruise of 22-24kts at 1.2-1.3 nmpg to a best cruise of 27-28kts at 1.6-1.7nmpg. So our cruise speed increased by about 22% with about a 32% improvement in fuel efficiency. But we are getting a bit less nmpg than Greg.

WOT fuel consumption remains the same at 28GPH, so we went from 1.07nmpg to 1.32 nmpg at WOT (a 24% improvement).

As I noted above, a pair of DF175s would be really nice...

Brian

 

[BobP]

Brain, was your single 250 underpropped? WOT speed seems low?

 

[ocnslr]

Brain, was your single 250 underpropped? WOT speed seems low?

No, not underpropped or overpropped. Did a lot of work with a local prop shop, and had both the original SWS 15.25"x17" and a PowerTech OFS4-17". Could do 5400-5500RPM with either one.

As I noted in my post on Wednesday, we experienced a lot of prop slip with the single. Less with the 4-blade than the 3-blade, but still far too much. I still attribute it to "dirty water" behind the two scoop injector shells (washdown and livewell).

Note that I use knots and Greg used MPH. Our WOT with the single was just over 30.5kts, or about 35.1MPH. Greg noted 35-36MPH for his top speed before the repower. So, no difference.

Brian

 

[See Saw]

I see there is now a verado 350 due out this year. Any thoughts on that option for the islander??? Seems like a lot of power being squeezed out of the same block they use on the 200....

 

[See Saw]

Never mind, it looks like a racing engine with 93 octane mandatory. 350 hp for less than 700 lbs sure would be nice though.

 

[BobP]

Brian, my error -

 

[Grog]

The Mercury Racing Opti's and Verados are great for those who have sponsors or enogh $ to not care about warranties. For a go-fast type, the Opti 300 XS? is a great motor, it's putting out way over 300 HP.

 

[captkfly]

It's really too bad that this post got turned into an argument about single vs twins. This was not the point of the post. I AM SOLD ON THE ASPECT OF A SINGLE ENGINE vs TWINS..............to me it's obvious! I just wanted to know the feelings about the Zuke engine and company sypport.

 

[ocnslr]

It's really too bad that this post got turned into an argument about single vs twins. This was not the point of the post. I AM SOLD ON THE ASPECT OF A SINGLE ENGINE vs TWINS..............to me it's obvious! I just wanted to know the feelings about the Zuke engine and company sypport.

I think my first post on this thread addressed your initial question, and I think the 300 Zuke would be fine.

Sorry if my subsequent posts contributed to the highjacking of your thread.

Brian