34 yellowfin w/ twin mercury Verado 400’s
#24
Admirals Club 

#25
Member

Would be almost identical to the 400r performance. 6800rpm in the production 400 versus 7000rpm with the R. That would not be the ideal twin setup for that boat. The only difference in the 350, 400, and 400r is the calibration (6400, 6800, 7000 WOT respectively) so unless you plan on running everywhere at 6600+ rpm, you won’t see any real gains over 350s.
#27

Overpower as much as possible. If your not getting trips then get the twin 400's.
I have quad 400r's on a yf42 and love em over the trip 350 yammies I had on the last one.
More power= better hole shots, no prob getitng on plane when loaded up, less strain on engines, can run at lower rpm's, generally better fuel burn at cruise, higher top end-- everything better imo.
I have quad 400r's on a yf42 and love em over the trip 350 yammies I had on the last one.
More power= better hole shots, no prob getitng on plane when loaded up, less strain on engines, can run at lower rpm's, generally better fuel burn at cruise, higher top end-- everything better imo.