Hey K...
Do you have a smartphone? If you do you can download a free GPS speedo for you phone... set it on your dash while driving and you're good to go.
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| 12 MPH = how many RPMS? https://www.smwebhead.com/phpBB3/viewtopic.php?f=3&t=6594 |
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| Author: | ky0608na [ Fri Sep 10, 2010 2:02 pm ] |
| Post subject: | 12 MPH = how many RPMS? |
My speedometer is broken, was broken when I bought the boat - I have the volvo 220hp motor - I will be trying to pull a wakeboard this weekend and was told to only go around 12-14mph - but what does that equate to in RPMs? thanks, Dan |
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| Author: | Walt [ Fri Sep 10, 2010 2:12 pm ] |
| Post subject: | Re: 12 MPH = how many RPMS? |
First off, 15-20 is a much better speed for wake-boarding. As far as using a tach... if you are not on-plane, the tach will be of little use. best bet is to judge the wake and rider. Without a skier, try finding an RPM the boat will settle at (on-plane). Start at about 3000 rpm, and slow down a bit at a time, until the boat will just stay on plane (I'd say around 2500 rpm?). That should be about 15-17 MPH. After a few years of boarding, I have found it is much easier to board, and teach others at around 20 MPH; I usually set my PP at 21 MPH. If you would like to replace the speedo face with a GPS on, try the Perfect Pass website (I think someone said about $400). I use the Stargazer Wake for skiing, but at $1200, it's a little pricy for most peep's. Best of luck! |
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| Author: | Shawk [ Fri Sep 10, 2010 2:15 pm ] |
| Post subject: | Re: 12 MPH = how many RPMS? |
Hey K... Do you have a smartphone? If you do you can download a free GPS speedo for you phone... set it on your dash while driving and you're good to go.
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| Author: | Txjole2 [ Fri Sep 10, 2010 2:28 pm ] |
| Post subject: | Re: 12 MPH = how many RPMS? |
12-14mph is way too slow, we surf at 12 |
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| Author: | ky0608na [ Fri Sep 10, 2010 2:50 pm ] |
| Post subject: | Re: 12 MPH = how many RPMS? |
Thanks for all the tips - will def use a GPS app on my Droid for this weekend to give me an idea. I may end up putting in the PrecisionStar for my speedo replacement. |
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| Author: | Walt [ Fri Sep 10, 2010 5:07 pm ] |
| Post subject: | Re: 12 MPH = how many RPMS? |
Even a Hand-held GPS like the eTrex or similar would be a fairly inexpensive option, with maps to boot! I tried 14-18 MPH for a while... very tiring. Your arms just give out after a while. I found 20-24 MPH (really smooth water) to be much less fatiguing, and much more fun to try tricks! |
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| Author: | NMJim [ Sat Sep 11, 2010 12:17 am ] |
| Post subject: | Re: 12 MPH = how many RPMS? |
Hey Walt, What prop are you running on your H210SS 
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| Author: | Walt [ Sat Sep 11, 2010 6:49 am ] |
| Post subject: | Re: 12 MPH = how many RPMS? |
NMJim wrote: Hey Walt, What prop are you running on your H210SS 21P Hi Five; Drive ratio is 1.5:1 Check out this Prop Slip Calculator. I've recommended it for many others. |
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| Author: | robbo3 [ Sun Sep 12, 2010 7:54 pm ] |
| Post subject: | Re: 12 MPH = how many RPMS? |
Txjole2 wrote: 12-14mph is way too slow, we surf at 12 Jealous, something I've wanted to try.My stock speedo is useless below 20mph, I strictly use GPS when trying to maintain a speed for watersports. I also agree that 12=14 is too slow, I tow my 8 year old at about 15/16 on his wakeboard. |
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