Repowering Parker 1801 with 150

[Longislandfish]

Just wondering if anyone has repowered their 1801 or 1800s with 150hp outboard. I am starting to look into replacing my F115 with a newer 4stroke motor. I was looking at the DF140a from Suzuki, it has lean burn tech, and is the same block as the 115. Same displacement, just with upgraded ecu.

the other I was looking at was the Pro xs 150 from mercury. It’s the lightest outboard in its class and puts out 165-169hp to the prop according to other posts.

lastly the Yamaha 150, however at almost 20k I’m sort of not even considering the Yamaha.

I also had a look at the new Suzuki 150ss which is a big block 3L outboard with different gear case ratio.

I’m leaning towards the mercury pro xs, a lot of good reviews excellent fuel economy, quieter than the Yamaha, and had the most hp and displacement out of all three. And priced very well

 

[warthog5]

Look at the weight of all of them.

The DF 140 is what I'd go with.... 100lbs lighter . It has a unique Cowl from the 115.

I just explained this to my Vet yesterday.

Here is the difference in Suzuki.

Suzuki swings a Bigger prop than anyone else....And why I use Suzuki Props also.

Bigger prop is like Bigger tires....More traction.

It can do this because it has Lower gearing then all the others.....It also runs a Timing Chain in a oil bath......Not a timing belt.

 

[PastTheBarb]

I was recently was forced to repower my 2100. It had a 225. On the west coast big outboards are nowhere to be found so I reluctantly had to go with a Mercury 150.
I was pleasantly surprised. Im still getting 37mph WOT and the hole shot is good (about 3 seconds). Im very happy, a little shocked to be honest. Top speed isnt important to me as its a rare moment that I can run faster than 22mph out here. It came proped with a 15 X 15. I still have the fancy stainless steel four blade prop from the Prop Gods that I might sell.
I got the standard 150. Not sure what the difference in Pro XS other than the cool decals.

 

[tomc585]

Your not repowering to go faster are you?

 

[Longislandfish]

Your not repowering to go faster are you?

Partly yes, but mostly to get a better cruise speed. A friend of mine has a 22 1801 with a Yamaha 150, he’s getting 35mph at 4400 rpm 6gph. Wot is 45-48mph. I boat in the sound where there are time where I am able to operate WOT, not a rare occasion but yes I would like more usable power and a higher top end and cruise speed. If I’m being honest, if I could I’d hang a 200ho engine on it lol

 

[tomc585]

A member here has an 18' with a 200 merc on it. Not much faster on the top end but does use more fuel!
For the trouble of the 150 and new rigging I don't think the benefits warrant the expense. Maybe a different prop night be a better way to go. I've been pondering dropping to a 15P (from 17P)
https://turningpointpropellers.com/_CONTENT/express-stainless-steel-boat-propellers.php

 

[tomc585]

https://www.classicparker.com/threads/1801-2003-19-5k.21417/

 

[Longislandfish]

A member here has an 18' with a 200 merc on it. Not much faster on the top end but does use more fuel!
For the trouble of the 150 and new rigging I don't think the benefits warrant the expense. Maybe a different prop night be a better way to go. I've been pondering dropping to a 15P (from 17P)
https://turningpointpropellers.com/_CONTENT/express-stainless-steel-boat-propellers.php

Yes I have played around with many props and the results are pretty much the same. The best combo for me was a 16p SCD4. I have tried the 19k 17k and 15p SCD3 as well. Also have run the SCD4 in a 15p good for heavier loads, but the fastest prop out of the hole and no loss of top end is the SCD4 16p