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Author Topic:   Prop size Montauk with 75hp Opti.

skeepyjack posted 02-27-2006 07:26 PM ET (US)
I know this subject has been beat to dead in the past, but I couldn't find the "real" answer yet (on this site search), so I will ask again: Friend of mine will puts the 2005 Mercury 75hp Optimax 2 stroke on his 80 Montauk, and looking for the "ultimate" prop size/type and controler (consol mount) for his old-new motor/boat. He won't joins to any racing circuit of any sort, and just want to take some guys (including myself) go out to near-shore (outside Golden gate Bridge) for fishing.
I've told him either 19-21" props will works (that what I have on my 18 and 25 Outrages), but he did not believed me. So if any CW member actually has the same setup, please give me(him) the hints. Thanks.
Skeepyjack

Tom W Clark posted 02-27-2006 07:35 PM ET (US)
Thinh,
Tell your friend he wants a 13" x 18" Mercury Vengeance for the 75 HP Optimax on his Montauk. Top speed will be about 38 MPH.
I think any 19" prop will probably be a bit too much but if he wanted to try one I would sugest a Stiletto Advantage I 13.25" x 19"
skeepyjack posted 02-28-2006 12:43 AM ET (US)
Tom, I'll take your word. Thanks
Tom W Clark posted 02-28-2006 12:51 AM ET (US)
Here is a very good deal:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=4593530284
Teak Oil posted 02-28-2006 05:44 PM ET (US)
On a Montauk you usually need 90hp to turn a 19" prop.
If your friends engine has a 2.33:1 gearcase I think Tom is on the money, go for a prop with 17 or 18" of pitch, and a diameter around 13 3/8"

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Author	Topic: Prop size Montauk with 75hp Opti.
skeepyjack	posted 02-27-2006 07:26 PM ET (US) I know this subject has been beat to dead in the past, but I couldn't find the "real" answer yet (on this site search), so I will ask again: Friend of mine will puts the 2005 Mercury 75hp Optimax 2 stroke on his 80 Montauk, and looking for the "ultimate" prop size/type and controler (consol mount) for his old-new motor/boat. He won't joins to any racing circuit of any sort, and just want to take some guys (including myself) go out to near-shore (outside Golden gate Bridge) for fishing. I've told him either 19-21" props will works (that what I have on my 18 and 25 Outrages), but he did not believed me. So if any CW member actually has the same setup, please give me(him) the hints. Thanks. Skeepyjack
Tom W Clark	posted 02-27-2006 07:35 PM ET (US) Thinh, Tell your friend he wants a 13" x 18" Mercury Vengeance for the 75 HP Optimax on his Montauk. Top speed will be about 38 MPH. I think any 19" prop will probably be a bit too much but if he wanted to try one I would sugest a Stiletto Advantage I 13.25" x 19"
skeepyjack	posted 02-28-2006 12:43 AM ET (US) Tom, I'll take your word. Thanks
Tom W Clark	posted 02-28-2006 12:51 AM ET (US) Here is a very good deal: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=4593530284
Teak Oil	posted 02-28-2006 05:44 PM ET (US) On a Montauk you usually need 90hp to turn a 19" prop. If your friends engine has a 2.33:1 gearcase I think Tom is on the money, go for a prop with 17 or 18" of pitch, and a diameter around 13 3/8"