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Johnson 115 vs 135

Have questions about setting up your boat? Engine height, setback, prop, etc.
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rjlehr13
Getting my feet wet
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Joined: Aug 30, 2009 7:50 pm
Location: Almont, MI

Johnson 115 vs 135

Post: # 6072Post rjlehr13 »

I am looking at either a 1975 Johnson 135 or a 1975 Johnson 115 to put on th eback of my Viper. My question is what is the main difference between the two motors? Both are V-4's, very similar in weight and size. Will the 135 give me a noticibale difference in power, speed and torque over the 115? Thanks!
'76 Viper Bicentennial in the works
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77viper
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Joined: Mar 29, 2009 11:38 pm
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Re: Johnson 115 vs 135

Post: # 6078Post 77viper »

Those will be crankshaft rated HP so expect to loose 10-15%. They are the same block and the 115 can be made into a 135 but I don't know enough about them to say what needs to be changed. Unless they are cheap I would look for something in the late 80's, they are propshaft rated HP.
Samari on s&f
Chet Olson

75 viper 2.4 200, 130 shot of NOS
91 vegas loaned out
79 vking project 2.5 280
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hydrostream76
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Re: Johnson 115 vs 135

Post: # 6080Post hydrostream76 »

go for a V6 !
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