MIRAGE454

mirage 217 non mag 454 1.5 drive ratio.Max speed is 59 at 5000.with a mirage plus 23p.typical blow out garbage with the plus.ran a 22p b1 and same speed and rpm but way better handling,merc prop selector recommends a 25p rev 4.rpm should lower down around 4400 or 4600?as usual I want top speed.Ideas welcome!REV4 OR B1??

Mbam

I think the Rev will be faster in that application. However a 23 Rev will pull 300 RPM less than a 23 Mirage +, actually with that engine my guess is you would run faster at 4200 RPM with the 25. Might be sluggish out of the hole.

onesickpantera

iTrader: (1)

On my boat the Rev4 worked much better than the Bravo. More bow lift and much looser but still handled well. The rpm difference between the Mirage and Rev4 was only 100-150 rpm. The Bravo lugged my RPM a lot more.

MIRAGE454

The B1 didnt have enough bow lift,it would blow out before the bow would dance,I can get a rev 4 25p for a great price,and wouldnt mind a little on the low rpm side as engine mod will be in the the future,Thanx guys