V-King followup

Hi Randy. A little follow up on my 140 V-King. I admit I was a little skeptical about using a 22 laser11. Didnít think it would pull it so put on a 20 laser first. Not good 7000+ at 55mph on Speedo. I am pulling the 22 now but the best I've seen on speedo is 60 at 6500+. My questions are as follows: I have a chance to get a 1985 V150 with a melted piston [oil problem]. Being it's apart can you suggest any minor mods? What kind of setup would you recommend? Height-prop-etc? When I said it had a 4.5 setback I must have had a bad tape. It's actually 5.5" with a 1.5" wedge. Hope you can help me out. Thanks in advance for my questions here and previous also. mecanic



First the 140 just needs to be lower on the transom. Put it down 3/4" or 1 mount hole and you will lose RPM and gain speed. 

The setup for the 150 is pretty much the same and a 26" Laser II will run great. Try to get some GT150 heads for the motor. Other than that I'd leave it alone. 27 SRX prop is also good. I'd "86" the 1.5' wedge though as the motor has a limited trim range. 




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.

Mark C.


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