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Does the gp1800 have a speed limiter on it from factory?
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Yamaha ecu have a history where they can see what rpm vs time.
So dealer can see how long time you been over ex 8000 rpms.
That would void your warrenty.
Even if you flash back ECU to stock the history will still be there..
BUT , Very soon we have a ready solution for that with Maptuner X.
(the history will not show high rpms..)
((This will be for all yamaha from 2014 -))
Will let you know more once ready. (hope max 2 weeks)Comment
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Dean can eliminate the GPS limiter from your stock ecu for I believe $150. If later you decide to flash the ecu he will credit the cost back towards the flash. I still do not see the bypass option available in the Green Hulk store though. Maybe Jerry is working on adding it.
With just Dean's GPS bypass and my few mods, I ran a top speed of 78 mph at 7760 rpm but consistent 76 -77 mph at 7680 - 7740 rpm.
My ski with just GPS bypass has outrun all SeaDoo so far even with a flash (this past weekend) and even some FZ with light mods and flash. It is a great reliable setup and best thing is that you wont void warranty. Stock rpm and boost.
Here is my ski and further info http://www.greenhulk.net/showthread.php?t=25972119 GTX Limited 300 Riva Stage 2- 83mph @8400 rpm
18 GP1800 91mph @9600 rpm, stock wheel, twin impeller-Sold
18 FX SVHO Cruiser 85mph @8700 rpm, stock wheel-Sold
17 GP1800 91mph @9600 rpm, stock wheel, twin impeller-Sold
14 FZS 93mph @9700 rpm, stock wheel, twin impeller-Sold
14 RXPX 85mph @8800 rpm stock wheel-Sold
09 FZR 91mph @9300 rpm, ET18-Sold
06 GPRXP Conversion 89mph @8600 rpm-Sold
Jet Trendz http://jettrendz.com/
Jim's Performance 727-365-5132
Dean's Team - Link
👍 3Comment
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Current:
2016 Yamaha 212x
2023 Yamaha FX SVHO
2010 Seadoo 260 RXXT
Past:
2020 Yamaha GP1800R * 2016 VXR * 2015 FX Cruiser SVHO * 2013 FZR SHO * 2012 Kawasaki 300x Ultra * 2012 GTR * 2010 RXT-X 260 * 2009 FZR * 2008 RXP-X 255-2 * 2008 FX Cruiser SHO * 2006 RXT * 2006 GTX 185hp * 2005 RXP 215 * 2004 RXP 215 * 2002 GTI LE * 1997 GTI * 1996 GTX * 1996 XP * 2007 VX Cruiser * 2007 AR210Comment
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we are in europe and I tested a bone stock 2020 GP1800R today with 2.4 hours prior to remap.
We do our own tunes.
Top speed is consistent 119.5 km/h so 74mph at 7800RPM
If there was a GPS inside the jetski, why would yamaha still use a paddle wheel to measure the speed?
So in the first tune I flashed I raised rpm limiter to 8600 rpm, keep timing at 23 after 7500, raised boost limiter and erased throttle valve delay.
Guess what, after reflash, huge acceleration improvement but topspeed identical 74 mph at 7800 rpm.
I guess I am missing something but I can not find anywhere a speed gps limiter in the yamaha fileComment
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It's 4 am in the morning here and I am breaking my head over this.
First I think that europe ski's don't have the 69mph limiter, otherwise it would not run 75 stock
I cannot find any map related to the paddle wheel.
What I did see is that the throttle body is only 80% open at 7800 rpm and 10psi of boost.
I am missing something but I'll findComment
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I thought I give you guys some insight in the SVHO ECU
This is stock timing, from 7550 rpm it drops dramatically
And this what we are testing now old vs new in red
I think we found the limiter, I will flash and try
Last edited by raffshore; 04-22-2021, 10:14 AM.Comment
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Yamaha ecu have a history where they can see what rpm vs time.
So dealer can see how long time you been over ex 8000 rpms.
That would void your warrenty.
Even if you flash back ECU to stock the history will still be there..
BUT , Very soon we have a ready solution for that with Maptuner X.
(the history will not show high rpms..)
((This will be for all yamaha from 2014 -))
Will let you know more once ready. (hope max 2 weeks)Comment
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