convincor

https://www.offshoreonly.com/forums/drives-lower-units/197116-how-measure-x-dimension.html

convincor

https://pokerrunsamerica.com/x-marks-the-spot-how-x-dimension-can-boost-performance-by-steve-sandler/

justintocars

Good info for sure! Thanks.

RotRunner

Thanks a lot! I think, the best way is to take the original dimensions from your single version of this boat. But before i start, i will trying to read and understand the links (i have to translate it.... ;-) )

convincor

Give checkmate a call. There usually very helpful.
Checkmate Marine Inc.
3691 St. Rt. 4 N. - P.O. Box 351
Bucyrus OH 44820
Phone: 419-562-3881 • Fax 419-617-7521

RotRunner

Phone ist complicate, because my english isnīt good enough to understand all - itīs much more easy to write and read, unknown words could be given to a translator.

justintocars

You can always email them too if that's easier for you.

[email protected]

convincor

Just sent Kipp an email 10 minutes ago. LOL
I can also see what my 251 is. I'll check tonight.

convincor

And his reply_
" X dimensions not something we really have record of around here for older boats…….we have always been higher than Mercury’s standard X dimension. Depending on model …etc…. anywhere from 1 to 2 ― “ higher. Your best bet might be finding a guy that owns a 281 single ( owners forum or owners face book page ) …..and get some measurements from them ? Also wanted to mention at some point we had both a single engine hull and dual engine hull for 281….eventually using the dual hull for both applications I think. Sorry we could be more helpful ……just not a lot of info around here on older boats anymore …..through 2 ownership changes, etc……and not sure how it relates to same on a new 300 Convincor either, Kip."

RotRunner

Thank you so much, youīre great!
Itīs good to know, Checkmate uses a higher position than normal and iīm confirmed in my thinking - so i can use the distances from your single engine version. Great!