Purchase MaptunerX versus send ECU in?

[stevenk2]

Stupid question #101 - if all I'm wanting to do is remove the speed limiter on a 2021 Yamaha GP1800R SVHO (i.e. stock ski with no performance mods/hardware), should I purchase a MaptunerX + license, or should I send in my stock ECU and have it done? I'm not going to be doing any other mods, and it seems far less expensive to just send it in and have it done, but I didn't know if there were any caveats to doing it that way.

[Hurricane1000]

Dean's Team is a 160.00 fee.

Send it to him, he does it usually the same day and returns it that day or the next!

Can't beat it.

Good luck

[K447]

Will you always have access to the same octane grade of fuel?
91 octane or better.

Riva MaptunerX (and I presume Dean also) have tunes that improve SVHO engine power, top speed and acceleration overall with zero hardware changes to the engine. This is Stage 1 in Riva speak for their SVHO tune on GP1800.

They also offer a 'stock' SVHO tune with just the speed limiter removed. No improvement in acceleration and engine power, just the limiter removed.

[stevenk2]

Will you always have access to the same octane grade of fuel?
91 octane or better.

Riva MaptunerX (and I presume Dean also) have tunes that improve SVHO engine power, top speed and acceleration overall with zero hardware changes to the engine. This is Stage 1 in Riva speak for their SVHO tune on GP1800.

They also offer a ‘stock’ SVHO tune with just the speed limiter removed. No improvement in acceleration and engine power, just the limiter removed.

Yes, at least 91 octane at all times - I wouldn't dream of running regular unleaded in a supercharged ski. Can I send the ECU in for the Riva Stage 1, or does that require me to purchase the MaptunerX and then the Riva tune?

My original goal was just to remove the limiter, but if there are gains to be had on an otherwise stock GP without causing any issues (warranty or otherwise), I'm all in.

[stevenk2]

Dean's Team is a 160.00 fee.

Send it to him, he does it usually the same day and returns it that day or the next!

Can't beat it.

Good luck

That's awesome - sounds like the hardest part will be getting the ECU out of the ski.

[Team Bilford]

If you don't want to pull the ECU, you could just use a SCOM and it can be removed in a few minutes if you wanted to.

[K447]

... Can I send the ECU in for the Riva Stage 1 ...?

My original goal was just to remove the limiter, but if there are gains to be had on an otherwise stock GP without causing any issues (warranty or otherwise), I'm all in.

I think there is a mail in service for the Riva tunes.

Check with the GH store for the details and pricing.

IIRC if you decide later on to buy your own MaptunerX box the mail-in tune license may be transferable so you can then change tunes at will.

[Yamafzs]

If you don't want to pull the ECU, you could just use a SCOM and it can be removed in a few minutes if you wanted to.

There is no scom avail for yamaha gp's, only the 14-16 fz ski's

[stevenk2]

I think there is a mail in service for the Riva tunes.

Check with the GH store for the details and pricing.

IIRC if you decide later on to buy your own MaptunerX box the mail-in tune license may be transferable so you can then change tunes at will.

... mail-in tuning service ... Stage 1 tune ...mailed them my ECU?


**NVM - just found it via search, looks like $549 (kinda makes sense, basically paying for the license/tune instead of the entire package)

[mittens]

Basically your options

Deans team:
$ 160 delete speed limiter, stock tune
$ 550 Full tune of your choice, no speed limiter

Riva:
$549 Mail in Tune/remove limiter
$1016 Riva maptuner Kit, with license. Can change your own tunes, or limiter only what ever. and back and forth.


I think dean was working on a way to do his tunes with out having to mail the ECU back. But have not heard anything on that in a min.

[stevenk2]

Thanks - on an otherwise stock '21 GP SVHO, what increase should I see in top speed with Dean's tune? With the Riva Stage 1 tune? Not hoping for 20 MPH, just wondering how close to 80 I'd get.

Also, is the Riva Stage 1 tune worth the extra $$$ in terms of improved response and performance? I don't mind spending the extra money if it's worth it.

[K447]

... otherwise stock 2021 GP1800R SVHO, what increase should I see in top speed with Dean's tune?
With the Riva Stage 1 tune? ...

The tunes from the different vendors are going to provide similar performance results. No magic involved.
The tunes simply maximize what the existing engine hardware and jet pump configuration can provide.

The GH Garage YouTube channel is currently doing a comparision series. The exact info you are asking about is shown in the video.

GP1800 SVHO acceleration and top speed with stock tune, stock tune with speed limiter removed, and with Stage 1 tune.

http://greenhulk.net/forumdisplay.php?f=262

https://youtu.be/XFAv-THBPdY

[stevenk2]

That's awesome - thanks!! That video pretty much answers all my questions regarding the different tunes. Basically, for the $549 you're gaining a little more additional top end speed, plus the acceleration is better as well. So I can pretty much safely assume that the riding experience will be a huge difference with the Riva Stage 1 versus just having the limiter removed, correct? Does anyone here have just the Riva Stage 1 on a bone stock GP? If so, what has been your experience with that, and would you still recommend getting it considering the cost?

I gather that most folks on the forum (and especially in this particular section) likely do more mods than just a tune on their skis, but given the type of riding me and my family do, I'm perfectly happy doing just the tune. Plus it looks like $$$ if you step up to Stage 2 and 3, and we have other hobbies to spread the money around on as well, so I have to be judicious about how we spend on any one particular thing.

[K447]

... That video pretty much answers all my questions regarding the different tunes. Basically, for the $549 you're gaining a little more additional top end speed, plus the acceleration is better as well.

... the riding experience will be a huge difference with the Riva Stage 1 versus just having the limiter removed ...?

Does anyone here have just the Riva Stage 1 on a bone stock GP?
If so, what has been your experience with that ... ?

I gather that most folks on the forum (and especially in this particular section) likely do more mods than just a tune on their skis, but given the type of riding me and my family do, I'm perfectly happy doing just the tune.

Plus it looks like $$$ if you step up to Stage 2 and 3 ...

For the GP1800 SVHO the sweet spots for cost vs benefit are the Stage 1 with ZERO hardware changes and the Stage 1 PLUS with basically the aftermarket air intake.

Our GP1800 SVHO (2017 model) ran with Stage 1 for a while. Then I installed the Riva air intake and installed the Stage 1 Plus tune.
Note: The 2017 SVHO engine has a metal intake manifold and I did take out the ribbon 'filter' flame arrestor disc and install the IMUK kit (essentially an open metal sleeve).

With the (2018 onwards) plastic SVHO intake manifold my understanding is that the Stage 1 Plus tune does not require the ribbon to be removed. That is optional. The engine will run just fine either way. Slightly more power, maybe, with the ribbon disc removed.

At the moment I do not recall if I actualy made the 'recommended' change to the engine cooling. It is simply removing a plastic tee from the water cooling hoses, drilling one or two of the passages larger, and reinstalling the plastic fitting.

Stage 1 and Stage 1 Plus are not creating huge additional cooling loads on the engine. Most (all? ) of the addtional water flow is going to the air-to-water supercharger intercooler which provides a mild power increase, especially during sustained high speed operation.

With Stage 1 the ski ran very well. With Stage 1 Plus it runs even better.

I have the choice of 93 octane Stage 1 Plus tune or the Low Octane version Stage 1 Plus tune, which only requires 91. I use the 91 'low octane' Plus tune most of the time.

If I fill the fuel tank with 93 octane fuel and switch (which takes a few minutes) to the full 93 octane Stage 1 Plus tune the thing is noticeably stronger. Really pulls through the mid-range and has faster top speed with higher sustained engine RPM.

For you, there are effectively four higher performance levels available at modest/similar cost.

'Stock' tune with 'just' the speed limiter removed (available using Riva MaptunerX)
Stage 1 tune (Riva) with no hardware changes
Stage 1 Plus Low Octane tune with cold air intake, using 91 octane fuel
Stage 1 Plus 93 octane tune with cold air intake

[mittens]

Keep in mind if your worried about warranty keep RPMS below 8k on the tune