Thread: 70mph speedo on 04 12f
08-19-2008, 01:27 PM #1
70mph speedo on 04 12f
Hey guys i have a 2004 stx 12 f with a short ram intake and i filled the rideplate holes and sealed the edges and waxed the hull, well i was out riding yesterday and the water was like glass, i was on like 2 bars of fuel and supermaned out and i looked up and the speedo said 70mph!!! so i was wondering how much this could be off by, because my previous best was 61 and what could have caused it to be that off. i only got it to 70 once but it was running consistantly 65 with me and a friend. so i dont know whats going on.
08-19-2008, 01:49 PM #2
get a GPS, and you'll know exactly how much your off by. ALl ski's vary in actual speed, hence the name DREAMOMETER.
my 15F stock does 62 GPS....
08-19-2008, 02:54 PM #3
lol i kno what you mean. 25hrs on my 08 15f & it says 70 on the dreamometer.
haven't gps.d since ive those numbers,but hopfully it more than my previous. but it wasnt bad.59.4 Full Tank
Are Waters & Air always humid. best results are in winter.
08-19-2008, 06:23 PM #4
Wish my dremometer was rite, I would have a 98mph ultra 150
Get yourself a gps, its the first tunning tool you should have for a ski
08-19-2008, 07:14 PM #5
- Join Date
- Mar 2008
Its my understanding that water density can play a big factor. I have a 07 15f, its bone stock.. well it was when this happened. Up at Greers Ferry lake in ark. I was up where the Little Red river comes into the lake. The water temp was around 65 to 68 degrees, the air temp was in the mid 90's, with 3 bars of fuel showing I jumped down hard on mine with the gps on the glove box and ran for a little over 2 miles down the river into the lake. When I stopped and checked the gps it read 68.3 mph while the dreamometer was reading a solid 70 mph. I took the damn thing to be checked out figuring it wasn't correct. the gps checked out perfect. There was a current of about 4 mph.. guessing at that... With that in mine I figure I was running 65 to 66 maybe. Taking the current speed away that is.
You could have had some sort of help from the flow of the water. Get a gps and check it out ....
08-19-2008, 08:20 PM #6
I knew they were generous but i never knew they were that giving. what would be a nice affordable gps that is accurate and waterproof? the current makes sense because on the same run accept for reversed i only ran about 58. who knows i just thought it was interesting.
08-19-2008, 10:39 PM #7
Alot of guys use the garmin e trex others use the garmin foretrex / forerunner. Both have current and max speed display. You can do a search here for gps and get lots of info.
08-20-2008, 10:23 AM #8
08-20-2008, 04:35 PM #9
- Join Date
- Jul 2008
Lol, I own a 12f as well as a 15f and the 12 does 55-57mph max....
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