New to me 1991 272 SR1
#31
Boat got a full service including new throttle and shift cables over the winter as well as new Holley fuel pumps and new fuel lines. The fittings on the stbd side were anemic. I swapped on a pair of Mirage 23’s from a buddy’s boat and the difference is night and day. Jumps out of the hole, accelerates much stronger, and runs right at 4800rpm with a full load. One of the new throttle cables needed adjustment, got that straightened out and can’t wait to run it again. Thinking it will be around 65mph with a full tank and two adults, not sure where that will put me on fumes. The 23’s seem to lift the bow and overall the boat just feels better. Even if I’m giving up some top end I think I’m going to run them this season.
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distantthunder (04-27-2021)
#33
Platinum Member
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The difference in props could be the model. A Mirage vs a Mirage Plus will be different and could load the engines harder.
4600-5000 is the rpm range of the 454 Magnum/Bravo. (‘88-up).
The 23P Mirage should the right prop and would have been original to the boat. You could run a 25P Mirage (not the Plus) for better cruise so long as it meets the minimum RPM rating if running WOT.
Really nice boat!
Ditch the Silent Blunder. You’ll thank yourself later... so will your transom.
4600-5000 is the rpm range of the 454 Magnum/Bravo. (‘88-up).
The 23P Mirage should the right prop and would have been original to the boat. You could run a 25P Mirage (not the Plus) for better cruise so long as it meets the minimum RPM rating if running WOT.
Really nice boat!
Ditch the Silent Blunder. You’ll thank yourself later... so will your transom.
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distantthunder (04-27-2021)
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distantthunder (04-27-2021)
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distantthunder (04-27-2021)
#37
The difference in props could be the model. A Mirage vs a Mirage Plus will be different and could load the engines harder.
4600-5000 is the rpm range of the 454 Magnum/Bravo. (‘88-up).
The 23P Mirage should the right prop and would have been original to the boat. You could run a 25P Mirage (not the Plus) for better cruise so long as it meets the minimum RPM rating if running WOT.
Really nice boat!
Ditch the Silent Blunder. You’ll thank yourself later... so will your transom.
4600-5000 is the rpm range of the 454 Magnum/Bravo. (‘88-up).
The 23P Mirage should the right prop and would have been original to the boat. You could run a 25P Mirage (not the Plus) for better cruise so long as it meets the minimum RPM rating if running WOT.
Really nice boat!
Ditch the Silent Blunder. You’ll thank yourself later... so will your transom.
As much as I’d love to ditch the platform for sound and performance, I think they look so ugly without them. The cheap aftermarket aluminum platforms just don’t do it for me.
My next boat will be a few feet longer with thru-hulls
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distantthunder (04-27-2021)
#38
Registered
Thanks! I’m aware of the difference between the standard Mirage and the Plus. The boat had Mirage 25’s when I bought it and I swapped them out for Mirage 23’s... not plus. The boat didn’t want to push the 25’s past about 4300rpm. That’s with fresh ignition components, new fuel pumps/lines and throttle cables. It seems to really like the 23’s in comparison. Noticeably quicker out of the hole and acceleration and overall seems to ride much more bow up. Not to mention 4800rpm at WOT with two adults and a full load.
As much as I’d love to ditch the platform for sound and performance, I think they look so ugly without them. The cheap aftermarket aluminum platforms just don’t do it for me.
My next boat will be a few feet longer with thru-hulls
As much as I’d love to ditch the platform for sound and performance, I think they look so ugly without them. The cheap aftermarket aluminum platforms just don’t do it for me.
My next boat will be a few feet longer with thru-hulls
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TomZ (04-27-2021)
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distantthunder (04-27-2021)