multi engine set-up engine centers

[buzmacdowell]

I have always set-up 3 and 4 engine boats with the motors being @ 18" centers ...a buddy of mine just bought a 3 engine boat with the motors @ 25" centers ....with the center engine mounted high with a water pick-up on the transom...I am going to go through the motors before we run it...but I just wondered if anyone thinks that it could be as fast being set-up that way...Motors are Merc's....

[johnmiffco]

what hull is it? what motors?
if alien cowled the centers have to be further out
as the old 260style cowls were narrower and commonly woulg go at 18" centers
I have an offshore v bottom boat
that I have trips on it with 260 style cowls at 16 1/2 centers
to get props as close as possible for the 26deg v of this skinny 6'.6" hull

[Coupe427]

The alien cowling is 22" wide so they won't fit on 18" centers.

[buzmacdowell]

the motors are pre bridgeport 2.4 mercs,the boat is a 30' corsa..deep -v...& don't the cowls hit when there are 16 1/2 centers....

[johnmiffco]

the martini and my hull are similar
I have a 27" Kevlar excaliber with triple offshore 260+ motors
closer together they are on these hulls
helps the ride and also keep water in the 2 outer motors
as when over 70 when hull lifts props get high
no cowls don't hit,,,,,will do full turn with the side steer
I have no bungies on sides of cowls,,,,,,just bungies on front & rear of cowls
with offshore upper cowl brackets
this gives 1" closer
then when I made my bottom pans
I offset the mounting plate 1/2" from center on the L & R motor
that gives another 1/2"
1 1/2" total closer pr motor 3" toal closer together for all 3
and this hull is set up for 100+ and wave jumpin