Setup for Vector with Bridgeport

Randy,

Let me first thank you for offering your expertise to myself and all the other boaters on this site trying to set-up their rigs. I have been an avid power boater for the last 35 years and have always had a soft-spot for Hydrostreams....

I currently have a 1981 I purchased last year.... I have replaced the rotten floor, reinforced the transom with additional knees. The boat was already partially set-up as a drag-boat. It has opposing center steering with dual cables, a hot-foot foot-throttle, turn-signal "type" trim switch on the wheel and both the battery and fuel tank are to be mounted behind the drivers-seat and placed in the center of the boat. I have just purchased a 1986 2.4 Litre Mercury Bridgeport EFI racing motor. I have both a manual and a hydraulic jackplate I can install on the boat. My first question is which jackplate do you recommend I install, secondly where should I have the engine height based on the pad of the boat (as you know the engine already has a nose cone with low water pick-ups to allow higher engine mounting heights...I have been in a couple of Vectors and Vikings in the past and those boats always seem to be prone to "chine-walking" once about 65-70mph was reached.

Third...what items can I have done to the engine to improve it's life and performance?

Finally...what type of prop can you recommend for my application..I am strictly looking for top-speed..I have a 28 pitch big-eared Mercury chopper that I can experiment with...

Thank you for your time...

Sincerely,
Joe

 

You sound like you’re going the right way with the set up and rigging. You can start with the prop shaft ½” below and see how it takes a set. If too high the engine will pull like it wants to make a right hand turn. The chine walk is a function of you correcting the actions with steering input. It won’t go away – you must control it. Try the chopper and get some first impressions.

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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