Tohatsu 15hp or 20hp ???

[BUDDY123]

Know I getting a Tohatsu, my questions is 15hp or 20hp. According to Manu specs, both are 351cc, both weigh 114lbs, both have a bore stroke of 61x60(?), only diffence is 15 is 5-6000 rpms and the 20 is 5400-6100 rpms. Motor is going on a 14 alum V rate at 640 pounds. With myself and son we are looking at 400lbs + 114lb motors and misc equip. Boat is rate for a max 20hp. Price difference is $250. Confused how the difference is RMPS makes up the the additional 5hp. As always thanking everyone in advance for there knowledge.

 

[Sea Rider]

Re: Tohatsu 15hp or 20hp ???

Go for the one max transom rated for, full HP is theoretically achived at full wot rpm, some states at slight passing middle, betwenn mim-max factory stated wot parameters. Probably 15 is carbed, 20 is injected. Both have same CC and timing advance.

Happy Boating

 

[pckeen]

Re: Tohatsu 15hp or 20hp ???

Ditto. Don't know the mechanics of the two motors, so can't answer that, but for a $250 difference, if your boat can take a 20 horse, then do that. You'll be happier in the long run. Just make sure your boat is rated for a 20.