01-17-2014, 03:32 PM #1
2014 FZ SVHO hits 80+ mph with a V-Tech reflash only!! No other mods!!
Guys, I've been working hard with V-Tech to develop a reflash that will work on the new SVHO ski. We have finally got it nailed down and my ski just hit 79+ mph with no other modifications whatsoever. That's right, this ski is completely stock with the exception of the reflashed ECU.
When I mean completely stock I mean it. Untouched impeller, stock supercharger, stock intercooler, stock everything!!!
I was using an iPhone app called Max speed and initially saw 79.1 mph. I second guessed the accuracy of it and went straight to Walmart to buy a Garmin and went straight back out to the water and bamm! 79.2 mph. So much for iPhone GPS app's being inaccurate
RPM's were firmly planted at 8360-8380 RPM
It just goes to show you how good of a job Yamaha has done with this ski.
Now it's time to let the mods begin and get some big numbers out of this beast
I just removed the spacer plates from between the ride plate and the hull and went back to the water and the ski hit 80.5 mph
*** PLEASE READ ***
Guys, while these preliminary numbers are extremely impressive without any other modifications, it will not be safe to run a ski like this continually without engine cooling and intercooler upgrades. It's winter time, temps here yesterday during my testing were only 62 degrees and water temp in the 50's. Dean has similar numbers during his testing. Despite cooler ambient temps, Dean's logs show a steady climb in engine temp and a steady climb in air intake temps during a prolonged wide open throttle pull. This means the stock cooling system and stock intercooler are not up to the task at these higher RPM levels. In hot 95 degree summer air and 90 degree summer water these temps will climb at an alarmingly fast and dangerous rate.
Keep in mind that the stock engine cooling and stock intercooler were designed for a stock ski. A stock ski only turns a measly 7300 RPM when the limiter kicks in... that is nothing! Add 1000, or 1500 more RPM and you better be upgrading the engine cooling and intercooler.
I will be upgrading mine in the very near future and watch the speed numbers improve even more because of it
01-17-2014, 03:42 PM #2
01-17-2014, 03:45 PM #3
Holy shit. Anyone want to buy my '09 FZR?
Jerry- what RPMs was the ski turning?
01-17-2014, 03:47 PM #4
01-17-2014, 03:48 PM #5
The newer iPhone and Galaxy, hell any good phone, is just as accurate as any GPS.
That's damn impressive and I'm sure a ton of people will be selling off their skis for the new svho
01-17-2014, 03:49 PM #6
That s insane.
To think of the mods i ve done over the years to crack 80mph and you just installed a tune amazing.
Well done Yamaha and V-Tech
01-17-2014, 03:51 PM #7
Okay, next up are these mods
Riva Power Filter
Riva intake manifold upgrade
Riva ride plate
I will also be installing a prototype Engine Tech supercharger upgrade and will retune for that if needed.
This ski will be a BEAST!!!
01-17-2014, 03:55 PM #8
01-17-2014, 03:56 PM #9
Nice,Those 3 mods along with a pitch impeller @8600 should around 85mph,
01-17-2014, 03:57 PM #10
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