more mph (4 cyl 100HP Mariner)

[stemar]

I have 3 cyl 90HP Mariner which on WOT will go 35mph. I found a 4 cyl 100HP Mariner in a very good condition and price, Can you please tell me how many more mph will give me. and if it's a good engine.<br />Thanks

 

[JB]

Re: more mph (4 cyl 100HP Mariner)

I calculate a new WOT at 39-40mph, Stemar.<br /><br />That assumes optimum rigging and prop.<br /><br />Good luck.

 

[stemar]

Re: more mph (4 cyl 100HP Mariner)

Thanks a lot JB