Johnson 4 vs 2 stroke

[jprasisto]

Sorry, I posted this under one of the current topics. Actually did not realize it until I did it and realized it should be a new topic!<br /><br />Maybe you guys can answer this one. I am also looking at the Johnson 140 4stroke vs. the 150 2 stroke. I have a 25ft GW Ssilfish. Will the 140 be enough to push it for many years to come? (My current evinrudes are '86's.) I ask because it looks to me that the 140 is the same engine as the 90 and the reliability may be a factor? Not sure which way to go. If I was not clear, it's a twin engine setup.<br />Thanks

 

[CKJR]

Re: Johnson 4 vs 2 stroke

Bumbles-what power is currently on your sailfish? and what is the performance?

 

[jprasisto]

Re: Johnson 4 vs 2 stroke

Not exactly sure what you mean by performance. Fuel useage isn't too bad, but I've never formally checked it. Speed is OK for me, cruise about 15-17 knots at 3k rpm. I usually keep the RPM's down because the engines are getting tired!<br />I have no real problem with the current feel of the engines. If I need more speed I can get 23-25 knots at around 3800, only if it's calm though, I don't love getting thrown around!<br />Thanks in advance!

 

[jprasisto]

Re: Johnson 4 vs 2 stroke

Sorry, current setup is a pair of 1986 evinrude 150's

 

[JB]

Re: Johnson 4 vs 2 stroke

Hi, Bumbles.<br /><br />You will probably not even notice a slightly slower hole shot and a couple of mph less at WOT.<br /><br />But you will notice quiet, no smoke, no smell. Instant one-time starts without fuss, sputter, koff. Will use about half the fuel of the big V6s.<br /><br />Driving EFI 4 stroke outboards is as simple as driving a car.<br /><br />Good luck.

 

[Forktail]

Re: Johnson 4 vs 2 stroke

"I ask because it looks to me that the 140 is the same engine as the 90 and the reliability may be a factor?"<br /><br />The 140 and the 90 are totally different outboards. It is the 90 and the 115 that share a common engine (and both are good). The reliability of the 140 has been excellent, and I would certainly trust it over the 150 2-stroke. The Johnson 140 4-stroke is the same as a Suzuki DF 140.<br /><br />"Speed is OK for me, cruise about 15-17 knots at 3k rpm.....If I need more speed I can get 23-25 knots at around 3800"<br /><br />Expect the Johnson/Suzuki 140 to run up to 6200 rpm. So it looks like you'll have plenty of speed and power to spare.

 

[DJ]

Re: Johnson 4 vs 2 stroke

bumbles,<br /><br />I answered your question in another thread. Anyway, I didn't realize you were replacing twins.<br /><br />The John/Suzy 140's will keep you smiling as you pass by those gas pumps. <br /><br />Not to mention, smokeless with fiddle free instant starting.<br /><br />Enjoy!!

 

[jprasisto]

Re: Johnson 4 vs 2 stroke

Just an FYI, the 4 stroke Johnson 90/115/140 are the exact same engines

 

[aero320]

Re: Johnson 4 vs 2 stroke

Johson 90/115/140 4 strokes are not the same engines. The 90 and 115 are similar, the 140 is different. Displacement of 140 is different as well as gear ratio. There is a lot of information on suzukimarine.com on these engines. The models are DF90/DF115/DF140.