jacoviii
Jetboaters Commander
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List of tunes. YAMAHA SVHO 2014 / 2022
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Just to be clear - anything you do risks comprising warranty... especially raising RPM limits. If the tuner is telling you otherwise, they are full of it.Certainly does look tempting….. once you get into stage 1 and further, you run the risk of compromising warranty. Although, From what I understand very little if no impact at all on reliability if that makes sense….
Thanks for posting those graphs!First one is stock. Second one is a stage one tune that requires no additional performance parts according to the maptuner website
Right on… I’m glad you found it useful. Have a look at that thread that @F.M. posted… it does turn into a bit of a dumpster fire in places, but I found the info very useful. I may even look at going to the twin screw impeller as well, I have the cavitation issue if I hammer the throttle from a standstill and my little TR-1 engines are totally stock except the RIVA K&N style air filter which did get me an additional 200 rpm. But, the high altitude impellers did get my engines up closer to the rated rpm of 8000, roughly 7500-7600 at my highest lake, up from 6900-7000, and it was a big gain in performance. At the lowest elevation lake I go to I’m up at 8000 rpm and the boat has a lot more power, but, if I hammer it the cavitation is worse, and even if I get going a bit and drop the hammer the impellers will break loose until the boat gets going a bit more. But again, the performance gain is worth that, and I lost about .3-.5 mpg as well, which may not be a concern for others, but I do some longer distance runs wherein I carry an extra 22 gallons in a moeller top side gas tank.This is great info. Thank you for taking the time to post. I’m having a conversation with Jesus next week and will report back. He is 100% aware that this is on the boat but will definitely let you know what he says. Thanks again!
The reason you do not see any boat tune graphs is . No one is going to take a motor out of a boat to Dyno it. The motors are the same units as PWC.Good luck ! I’ll be waiting to see how it all works out for you.
If everything is the same then the dyno charts associated with the ski tunes should be attached to the boat tunes as well. Do you agree?The reason you do not see any boat tune graphs is . No one is going to take a motor out of a boat to Dyno it. The motors are the same units as PWC.