Mercury Laser II Prop ...A45 vs. ...A46 - Moderated Discussion Areas

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  Mercury Laser II Prop ...A45 vs. ...A46

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Author Topic:   Mercury Laser II Prop ...A45 vs. ...A46

davej14 posted 02-12-2005 08:48 AM ET (US)
Does anyone know the diference between the Laser II 48-16990A45 and the 48-16990A46 props? I believe that the A46 superceeded the A45 but is there any diference in performance?
CHRISWEIGHT posted 02-12-2005 05:05 PM ET (US)
Dave are you considering this prop for your 14 Dauntless.
regards chris
davej14 posted 02-13-2005 09:39 AM ET (US)
Chris,
Yes, I wanted to try a higher performance prop vs. the Vengeance 18 pitch I now run with. Why do you ask?
Dave
CHRISWEIGHT posted 02-13-2005 05:27 PM ET (US)
Dave,
we run a 22 pitch lazer 2 on a 16sl with a merc 90 2 stroke and have had some porposing problems which some members of the forum have attributed to the bow lifting characteristic of these particular props.
trim control is very small (has little effect) but we have learned to drive around it.
like the 16sl the smaller Dauntless hulls aparently are also prone to porpose and obviously this prop could exacibate the problem.
Performance wise the prop engine combination give reasonable hole shot although a little slow fully loaded (4 adults 2 kids) and 44mph by gps at wot.
LHG posted 02-14-2005 02:34 PM ET (US)
Mercury's A46 prop suffix designates props with the Performance Vent System plugs and interchangeable hub system. The A45 props are either not vented at all, or have the fixed vents. Both are non-P.V.S. A45 Aluminum or Vengeance props do have the interchangeable hubs.
In the Laser II series, A45 props normally come with a fixed rubber hub, but this can be punched out and the newer Flo-Torque II hub can be then used.

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Author	Topic: Mercury Laser II Prop ...A45 vs. ...A46
davej14	posted 02-12-2005 08:48 AM ET (US) Does anyone know the diference between the Laser II 48-16990A45 and the 48-16990A46 props? I believe that the A46 superceeded the A45 but is there any diference in performance?
CHRISWEIGHT	posted 02-12-2005 05:05 PM ET (US) Dave are you considering this prop for your 14 Dauntless. regards chris
davej14	posted 02-13-2005 09:39 AM ET (US) Chris, Yes, I wanted to try a higher performance prop vs. the Vengeance 18 pitch I now run with. Why do you ask? Dave
CHRISWEIGHT	posted 02-13-2005 05:27 PM ET (US) Dave, we run a 22 pitch lazer 2 on a 16sl with a merc 90 2 stroke and have had some porposing problems which some members of the forum have attributed to the bow lifting characteristic of these particular props. trim control is very small (has little effect) but we have learned to drive around it. like the 16sl the smaller Dauntless hulls aparently are also prone to porpose and obviously this prop could exacibate the problem. Performance wise the prop engine combination give reasonable hole shot although a little slow fully loaded (4 adults 2 kids) and 44mph by gps at wot.
LHG	posted 02-14-2005 02:34 PM ET (US) Mercury's A46 prop suffix designates props with the Performance Vent System plugs and interchangeable hub system. The A45 props are either not vented at all, or have the fixed vents. Both are non-P.V.S. A45 Aluminum or Vengeance props do have the interchangeable hubs. In the Laser II series, A45 props normally come with a fixed rubber hub, but this can be punched out and the newer Flo-Torque II hub can be then used.