Gearcase for Vector

Hi Randy,  I would like help with a 1980 Vector setup.  I am purchasing an xr6 150 . I have a choice of two stock nose cones, or factory gear cases. I am picking the smallest of the two.  The xr150 is a 2003. Would a smaller non-stock like a {bobs} nose cone work better?  Also would I need low water pickup or is that built in on new motor?  My prop choice maybe a 26 inch small hub laser 2 merc 3 blade.  I am a rookie as you can tell and would appreciate the advice.  I would like to reach at least 80 miles per hour.  Also how high up should the prop be from the bottom of the transom?   I would like to keep everything stock.  And would appreciate knowing how fast it would go.  Would I benefit from a manual jack plate?  If so what size? I have teleflex dual cable steering, hot foot and trim on wheel. Thanks Greg

 

Greg, 

Merc used to have the small torpedo gearcase with the 1:78 ratio for the XR6. They quit this case because it didn't last very long before it failed. I'd opt NOT to use this case for your boat as the gain in speed is not much. They do not offer a STD noseconed case that we know of. Your dealer must be doing this. The STD 1:86 ratio gearcase with the 26 small hub laser 2 would be a great combo for that boat. I would however have solid mounts put in from day one. That is the single most important thing you can have installed. Have them mount the motor on the transom and in the 4th or 5th hole up. This will easily run you close to if not just over 80. The boat will punch hard and have no side effects that the jack plate or nosecone provide. Give it a try as I think you'll be pleased. 

Randy

 

 

Please submit whatever questions you have to IHRTechTalk@yahoo.com.  All questions and answers selected will be displayed on this page as they come in.  Note: though all boaters are welcome, priority may be given to I.H.R. members.  Randy can not be held responsible for any advice given.  Though his information and expertise is second to none, he has no control over what you do with your boat.  It is up to you to boat safely and act responsibly, and his advice is only to be used as a guidance for your high performance boat/motor of which you are the one responsible for the risks involved.

Thanks,
Mark C.

 

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