07-10-2007, 04:44 PM #1
15FNew Best GPS 68.8 (My ski, not me)
Early Morning 68 Degrees
Lake Lanier, GA
ETrex borrowed from Chris
Fuel No Bars (Was beeping for 30-45 minutes) Not sure if anyone else has this but when my first Low Fuel Beep goes off I still have 6 gallons in tank.
So I rode it down low......and had only a fire extinguisher. Superman and freshly shaved head.......
Chris (Tall and skinny as a rail, 17 year old)
Same as above
He said the ski was registering 72 on the gauge when he was able to peak over bars. I let him run a few more passes but the 68.8 was top.
So all I have to do is loose 65 lbs....lol.
Mods full Riva RPM Kit, Sponsons in Middle position, 14/21, exhaust mod, and sealed plate, fresh wax...
Ski felt great.
Water was cool and weather perfect. Weather plays huge roll as the next day my best GPS was only 67.1 early morning and then 66.8 afternoon.
Now I just need to install wedge and raise sponsons to see what happens.....
07-11-2007, 06:50 PM #2
- Join Date
- Apr 2007
Damn good numbers! I'm currently at 67.3mph GPS, but it seems like everytime I go out the speed goes up a half mph or so. I think the motor is still breaking itself in...has 22 hours on it.
With my findings, raising the sponsons will not net you any kind of gain. I actually hated when they were up because they would barely kiss the water and spray water everywhere.
Last edited by SC61HB; 07-11-2007 at 07:03 PM.
07-11-2007, 06:58 PM #3
You guys go. Great job.
That is flyin on a 15f.
07-11-2007, 07:06 PM #4
awesome speed guys,i have the airfilter and rideplate and i hit 65.3 3 bars of fuel superman bout to install the free flow exhaust, its amzing how much potental these things have all motor!
07-11-2007, 07:52 PM #5
Help me find 2 mph
Any ideas besides wedge on how to get the extra 2mph?
I was thinking of repitching the impeller down a little to get the extra RPM.
07-11-2007, 08:37 PM #6
- Join Date
- Apr 2007
Throw the wedge in first and run it to see what kind of speed gain you get out of it.
A 70mph GPS 15F would be sick.
07-12-2007, 10:19 AM #7
07-13-2007, 01:18 AM #8
Bro, if it's not you, it dosent count. j/k
You also may want to do a search, on the wedge for the 15F, I think 3 guys have put them on here, and the lost speed.
Man, you guys must ride on some flat ass water!!!!!!No way I can get them numbers in ocean riding, then again, I dont have the full riva kit. I'm short the waterbox mod, and still have both waterboxes, and stock impeller. Other than that, I've got the rest of the riva kit. Too many swells. Keep us posted on how you hit 70 though.
07-15-2007, 12:21 AM #9
- Join Date
- Feb 2007
70s possible...ive done it with bolt on and free mods. my average was 69 though. its all in the details on the 15f.
07-17-2007, 05:31 AM #10
racingtrx450...did you notice a difference with the timing advance,& what deg you set yours at?
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