Valero YT Setback

Randy,
I recently purchased a 1988 Valero YT, open bow, with an 85 model Evinrude 235 engine.  I got a good deal on the package due to the fact the engine has a bad piston.  I am not the biggest fan of OMC products but plan on repairing what I have to get me on the water ASAP.  I have a couple of questions.  First, what is your recommendation on the amount of jackplate offset you should have with this package.  I measured the current jackplate offset and got approx. 9" between the transom and the motor bracket. This seems to me to be a lot of offset, not to mention a lot of strain on the transom.  Since the engine was damaged I was unable to test drive the boat. I knew the past owner and he said the boat would run around 80 to 85 mph. I am not looking for strictly top speed since the boat will be used to pull skiers as well.  Also, do you have any OMC parts suppliers/dealers you would recommend?  I will be needing pistons rings gaskets etc...  I recently signed up to the registry and just wanted to say the website is great!

Thanks,
Shane Barron
Auburn Alabama

 

Shane,

I, myself, owned a Valero YT bowrider in 1987. Had a 225 Yamaha on it at the time. My best friend had the same boat with a Johnson GT on it. So my recommendations are going to be based on all the testing that we did. I found the best overall setback at about 7 inches. Because of the bowrider area, I don't think the 9 inch jackplate will hurt you. I tried 9 inches back then, no gain - no loss. 80 - 85 mph is almost exactly what our boats used to run. I would try to run a 27 pitch OMC SRX and have a lot of roll put in the leading edge. This will give you a great hole shot for pulling skiers and the top end that you are looking for. Sit the prop shaft centerline around 1 1/4 inch below the pad and that should put you right in the game. I get most of my OMC parts from Pro Marine in Bradenton, FL. Their phone number is:  1-800-621-7761. These guys have virtually everything and are really great to work with. Good luck with your project and don't give up on the OMC yet.

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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