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GSF Dyno - Leistungsdiagramm selbst gemacht...

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7 hours ago, AAAB507 said:

but for example not the losses of your tires - which can be totally different because of size, type, pressure, road conditions...

Road conditions is not a factor that determiens the vehicle power. My vespa has 20cv, it does not have 18cv if I ride it offroad where my wheel doesn't grip. Everything else about wheels is taken into consideration since GSF Dyno needs the tyre circumference, which is determined by wheel size, pressure, and the weight that it is holding. So if you measure your rear wheel while you sit on the Vespa, with the wheel at the pressure that you normally use, there should be no error.

 

7 hours ago, AAAB507 said:

But also regular dynos have huge differences - 10%+ difference is usual.

Exactly, if you take a Vespa and you do 3 dyno runs on 3 different "real" dyno's, the power will be 20cv, 21cv, 18cv for example. Like 1-1.5cv tolerance. This is exactly the same for GSF Dyno if it is setup properly, so I think that it CAN show the actual power, with the usual 1-1.5cv tolerance that EVERY dyno has.

 

Edited by GiulioEX125E

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vor 2 Stunden hat GiulioEX125E folgendes von sich gegeben:

Road conditions is not a factor that determiens the vehicle power. My vespa has 20cv, it does not have 18cv if I ride it offroad where my wheel doesn't grip.

It is. And it is not about "no grip" - it's a difference of energy you need to accelerate. Because this is what the GSF-Dyno calculates. The acceleration (change of rpm in a certain time with information of weight, gear ratio and so on).

What the GSF-Dyno can't know are things that also need "energy" (=horsepower) in the acceleration.

Even the type of tire (profile and material) makes a difference. Or if the road is rough and takes more energy for rolling than "normal" road conditions.

 

 

vor 2 Stunden hat GiulioEX125E folgendes von sich gegeben:

This is exactly the same for GSF Dyno if it is setup properly, so I think that it CAN show the actual power, with the usual 1-1.5cv tolerance that EVERY dyno has.

That's correct but the differences might be larger then only 1-1.5 horsepowers.

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Ok, I get it. But the road where I do my test runs is pretty much smooth, just like any "good" road. Sure, your argument is valid, but  I don't think it makes SUCH a difference. As long as the road is "ok", the difference can't higher than 0.5-1 hp. Just like doing the runs while standing erect, or leaning towards the front for aerodynamics. If this makes SUCH a difference, then you also have to consider fuel quality for instance. Sure, it DOES make a difference, but it is so small that it's not relevant.

 

I make my test on a nice smooth road, with basically 0% uphill/downhill (I also run both ways of course to reduce the variables), always in a regular riding position, without crouching, giving full throttle from around 3k rpm.

Basically the only real way to make GSF Dyno more precise, is going to a real dyno and testing my vespa, then do a run on gsf with the same exact setup, and change the weight so that real dyno and GSF Dyno both show the same curve. I guess weight is the best parameter to "play" with, since it doesn't change the curves of the graphs, it just moves them up or down (same curve but 18 hp or 20 hp, for example). Sorry for the bad wording :)

Any suggestion or tips about how to make the tests, in order to make GSF Dyno more reliable and precise, is welcome!

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vor 9 Stunden hat GiulioEX125E folgendes von sich gegeben:

...

Basically the only real way to make GSF Dyno more precise, is going to a real dyno and testing my vespa, then do a run on gsf with the same exact setup, and change the weight so that real dyno and GSF Dyno both show the same curve. I guess weight is the best parameter to "play" with, since it doesn't change the curves of the graphs, it just moves them up or down (same curve but 18 hp or 20 hp, for example). Sorry for the bad wording :)

...


That‘s the way it‘s done, dude.

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On 1/14/2020 at 6:42 AM, schindol broer said:


That‘s the way it‘s done, dude.

I get it, so I'll try to find a real dyno in my area (which seems to be allergic to real dyno's, to be honest haha) and see what I can do. 

 

Anyway, any idea about point n. 1 in my first comment?

 

Edited by GiulioEX125E

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Hmm, not really but maybe a little work around could help:

Export each run data as ASCII text, import the data in an excel sheet and carry out any calculations/comparisson in excel.

 

 

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10 hours ago, schindol broer said:

Hmm, not really but maybe a little work around could help:

Export each run data as ASCII text, import the data in an excel sheet and carry out any calculations/comparisson in excel.

 

 

That's something to start from, thank you! I'll have to start playing with Excel since I have no idea how to reproduce a graph from an ascii text file, but I don't think that's hard to learn.

 

 

1 hour ago, edumegacc said:

hello

 

gsf dyno is not available in play store.

 

can you give some link to download?

 

regards

GSF Dyno isn't an app, it's a software. Here's the download link:
http://atom007.heimat.eu/tmt/gsf_dyno_download.html

 

There's also a SIP app which I think does the same as GSF Dyno, but I've never tried it so I can't tell you anything about it.

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vor 43 Minuten hat GiulioEX125E folgendes von sich gegeben:

GSF Dyno isn't an app, it's a software


it is NOT an app for a smartphone.. 

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21 hours ago, PXCop said:


it is NOT an app for a smartphone.. 

Actually I think he is saying that he wants the app from Sip, not the software from GSF :laugh: and to be fair, I tried to find the Sip app some months ago but I couldn't find it. I think you can download an ".apk" file from google, but not the app directly from any store (like Google Play).

 

Update:  I'm trying to figure out how to use the ASCII file from gsf dyno, into excel to draw the same graph. Not so easy for someone like me, who has 0 experience with Excel eheh

Edited by GiulioEX125E

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Offensichtlich kann man hier die Audiodateien nicht editieren ... was für Audiodateien kann man hier sinnvollerweise importieren?

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Hab ich probiert, geht net. Auch nach umschreiben der Datei nicht.

 

Hab das Programm mittlerweile von einen Freund bekommen. Warte jetzt nur noch auf schönen Wetter..

 

Gruß

 

 

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Ich habe in letzter Zeit mehrfach versucht, mit dem Handy Soundfiles für die Auswertung im GSF Dyno aufzunehmen. Im offenen Handschufach liegend oder hinten auf dem Rücklicht angeklebt, um den Auspuffton bestmöglich zu erwischen. In der Software tauchen dann immer jede Menge Punkte & Kurven auf, deren Bereinigung immer mühevoll und leider nicht immer erfolgreich ist.

 

Gibt es hierfür eine "Best Practice"?

Edited by xsivelife

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Für auspuffgeräusche haben wir in unserem Videos gute Erfahrung mit dem Mikro von Røde gemacht. Da gibts eins mit so nem Puschel dran. Das außen in nem Meter Abstand hingestellt und ausgerichtet. Klappt ganz gut.

 

such mal bei YouTube TTAutomotive und dann das R32 Vorstellungs Video.

 

vielleicht hilft es ja?!

grüße

 

edit: das ganze dann natürlich mit Kamera!

Edited by TimoPX

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vor 1 Stunde hat TimoPX folgendes von sich gegeben:

Das außen in nem Meter Abstand hingestellt und ausgerichtet. Klappt ganz gut.!

Zum Fahren eindeutig suboptimal ... ich brauche hier eine "Mitnahmelösung" ... :cool:

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am besten den spannungsteiler basteln, tonaufnahme klappte bei mir zwar (in oberschenkeltasche einer hose) aber auf dauer nervt es. ich hatte dann früher an allen reusen einen stecker für die gsf dyno messung mit spannungsteiler.

 

die infos was du dafür brauchst kannst du dir hier wo zusammensuchen, alternativ würde ich mich von dem zeugs auch trennen (inkl aufnahmegerät und 2 platinen usw).

wenn du keinen bock hast es selber zu basteln - bei interesse schreib mir eine pm.

 

gsfdyno_spannungsteilerkabel1.jpg

 

gsfdyno_spannungsteilerkabel2.jpg

 

gsfdyno_spannungsteilerkabel3.jpg

 

gsfdyno_spannungsteilerkabel4.jpg

 

anleitung.JPG

 

 

Edited by Motorhead

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Hallo, 

kurze Frage da ichs hier trotz lesen nicht finde... 

 

habe mein Spannungsteiler für Line-in hier vor Ewigkeiten erworben. Nun möchte ich mal wieder nach langer Zeit damit arbeiten. Sind zwei Krokodilklemmen dran und beide Litzen sind schwarz. Was ist jetzt 12V und was Masse? Wo sollte Ich die am besten anklemmen damit man ein möglichst sauberes Signal von Anfang an erhält? Geht man da direkt an eines der Kabel von der normalen blauen Ducati-CDI, wenn welches (Rot=Pickup, Grün=Erregerspule, Weis=Masse, da natürlich nicht)?

 

Gruss und Danke 

Edited by dolittle

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Am 2.5.2020 um 14:25 hat dolittle folgendes von sich gegeben:

Keiner der das noch nutzt? 

:lookaround:

Musst an die geregelte 12V Spannung vom Spannungsregler + Masse klemmen.

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