Replacement Engine Question
 

Well I am looking for a new-to-me engine and I keep finding some Johnson 115HP 20" shafters.

My question is, what would be the performance differences from my Evinrude 150HP?

Would it just be quiter and better on gas?
Would I just not be able to move the V at close to 45 MPH?

Any comments would be greatly appreciated.

What year 115? If it is a 95+ that is a V-4 60 degree looper then it will perform pretty well and be a rock solid engine. The earlier 115's that are the cross-flow engines are still good engines, but not quite as powerful and definately thirstier.

Shoot, if a 115HP will move a V-20 at 45 mph, then I need to trade in my 200.

With my 140 on smooth Lake I once saw 39-40 never did tried it again, I am yet to set my WOT timing so I stay under 5500 RPM..

So a later model 115 would be a good fit for a V?

I am just looking for something dependable that will plane the V and cruise at a decent speed, say 25 - 35 MPH.


By the way, I never hit 45, the first year I owned the V I was hitting 40 and then each year
I noticed a reduction in top speed, I should have known then that I was losing compression.

Parish that is what I had on Old School,, works just fine

Thanks Willy.

I am at the point in my life were speed does not matter,
I just want to get there, drop some lines,
take a nap and then get back.

If you can find one of the 95+ 115HP OMC loopers then jump on it. They are not speed demons, but they are fairly quiet for a carbed 2 stroke and you can't beat the reliability of them. The 90-175's that were refferred to as the EAGLE series by many has been argued to be the best engines that OMC EVER built.

I understand what yer sayin'...but I wouldn't do it...

The Johnson 115 on Old School topped out at about 34 mph this season based on the gps. I cruised around 25 mph. I think more could be achieved with some tuning and prop optimization.