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View Full Version : prop damage - 454/33 - Alpha


BlackJack58
07-13-2009, 12:05 PM
A gust of wind and some unseen rocks resulted in the following. (see pics) I was just idling at the time and the wind caused me to drift over into trouble. Restarted and got boat to the ramp - was greeted by this once I got her on the trailer.

Didn't notice anything at low (no wake) speeds - but was wondering at what rpm/speed I'd get vibration, or anything else.

Prop is a Quicksilver Mirage 13.75 19/pitch on an Alpha drive - 1987 454 mag /330 hp. Is that even the best prop for this boat? Prior to this, performance seemed OK...

Can this be repaired? Or should I just get a new (or different) prop?
Knot 4 Me
07-14-2009, 10:22 AM
A Mirage Plus is a good prop. That looks repairable. If you can find a Laser II, I would try that for comparisons sake. Depending on the hull, that might work out better for you. The Laser II tends to carry the bow more.
BlackJack58
07-14-2009, 02:15 PM
Thanks - it's a Formula 242 LS - heavy but very stable....
Knot 4 Me
07-14-2009, 02:23 PM
The Laser II may not have enough blade area for that big a boat. Mirage Plus is probably your best bet with that heavy of a boat with the drive mounted deep from the factory.
jhenrie
07-14-2009, 06:15 PM
l 2 if it had twins w alphas maybe
Trim'd Up
07-14-2009, 07:16 PM
I don't think the laser would work very well for ya. Mirage or mirage plus is probably your best bet. What kinda RPM's you running and what gear ratio?
ThrottleUp Props
07-15-2009, 10:21 AM
The propeller may be repairable. If it is an old style Mirage age is against the propeller. If it is a Mirage Plus then repairing should not be a problem. As far as the Laser II is concerned they are reserved for small boats less than about 20-21' in length.

Julie
BlackJack58
07-15-2009, 11:11 AM
Not sure about the gear ratio - package is stock w/about 450 hrs. RPMs - about 4100 is as high as I have taken it, so far. But there is more there.
HiZ
07-17-2009, 01:21 AM
Send it to BBlades, they can make it better than New.
And if it is an orig Mirage, not Plus they can tweak it for a little more!
Call them up!
Ratickle
07-17-2009, 06:54 AM
Prop is a Quicksilver Mirage 13.75 19/pitch on an Alpha drive - 1987 454 mag /330 hp.


Thanks - it's a Formula 242 LS - heavy but very stable....

There's a combination you don't see alive in most people's hands......

I changed my drive in the Empress to a Bravo when I switched from the small block to a big block.....

DId you have Triple Digits work on the drive???? (Just Kidding:sifone:)

Friend had twin small blocks with Alphas in his 242.....