gti 130 wow
Member
I just had my first day on the water after installing the V-TECH firmware on my boat .
The GTI-130 Rotex engine is purposely detuned by Sea Doo for marketing reasons .
The engine from Sea doo makes 96kw or 131 hp at 7300 rpms . The Rotex engine with proper firmware installed puts out 106kw or 144 hp at 7500 rpm .These figures come from the Rotex web site and its in the 2015 Sea Doo GTI users manual . I got the results I expected and and happy with it .
Before : 56mph@ 7350rpm
After V-TECH mod 59 @ 7550
conditions : choppy water , 45 degree tempt.
Their is more to the story then just 3 mph .
When cornering at 50mph on my favorite twisty route for example ,the stock motor does not have sufficient reserve power at full throttle to keep the speed from dropping . The V-TECH does which to me is a big deal .
One important measure of the performance of an engine is the width of its power band or the range of rpms that it can put out large amount of power. The spread between max torque and max power indicates how good the engine performs . On the stock GTI-130 engine its 6000 to 7300= 1300 rpm . On the V-TECH tuned engine its 6000 to 7500 rpm or 1500 rpms . That broader power band is what helps keep the speed up in cornering .
I am happy to see that the touring and eco mode still work fine.
I don't understand why they changed the rev limiter to 8600 rpm because the only time it hits that peak is in the drive way so I plan to send off a e-mail about that .
The GTI-130 Rotex engine is purposely detuned by Sea Doo for marketing reasons .
The engine from Sea doo makes 96kw or 131 hp at 7300 rpms . The Rotex engine with proper firmware installed puts out 106kw or 144 hp at 7500 rpm .These figures come from the Rotex web site and its in the 2015 Sea Doo GTI users manual . I got the results I expected and and happy with it .
Before : 56mph@ 7350rpm
After V-TECH mod 59 @ 7550
conditions : choppy water , 45 degree tempt.
Their is more to the story then just 3 mph .
When cornering at 50mph on my favorite twisty route for example ,the stock motor does not have sufficient reserve power at full throttle to keep the speed from dropping . The V-TECH does which to me is a big deal .
One important measure of the performance of an engine is the width of its power band or the range of rpms that it can put out large amount of power. The spread between max torque and max power indicates how good the engine performs . On the stock GTI-130 engine its 6000 to 7300= 1300 rpm . On the V-TECH tuned engine its 6000 to 7500 rpm or 1500 rpms . That broader power band is what helps keep the speed up in cornering .
I am happy to see that the touring and eco mode still work fine.
I don't understand why they changed the rev limiter to 8600 rpm because the only time it hits that peak is in the drive way so I plan to send off a e-mail about that .
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