Alexle Posted December 22, 2021 Report Share Posted December 22, 2021 Hi I have a vertigo nitro 250. I stepped down from a 280 trs and found the bottom end to be a bit too soft for my liking. I have been playing around with the get ecu tuning, more fueling off the bottom seem to help a bit but I'd like a bit more power. I'm wondering if advancing the ignition timing off the bottom would help? But I'm worried about messing with it too much. Other alternatives I'm assuming could be adding a high compression head? Has anyone tired this? Hoping to get some suggestions. Thanks! Quote Link to comment Share on other sites More sharing options...
richtr300i Posted December 23, 2021 Report Share Posted December 23, 2021 Hmmm. So, you want the bottom to be more aggressive? As in "spin up faster" or do you want more "torque"? Maybe either add a quick turn throttle...or a flywheel weight? Quote Link to comment Share on other sites More sharing options...
Alexle Posted December 23, 2021 Author Report Share Posted December 23, 2021 I actually have a extra quick turn throttle already. Modified a fast throttle to make the pull more at the beginning. I want it to be faster off the bottom, I guess spin up faster. Quote Link to comment Share on other sites More sharing options...
richtr300i Posted December 23, 2021 Report Share Posted December 23, 2021 Interesting... Okay, so 2-stroke tuning is Voodoo. Or something like it. http://www.ijettjournal.org/2018/volume-58/number-1/IJETT-V58P205.pdf However, for faster rpm gain, i would think you'd want to read this one - http://www.amrca.com/tech/tuners.pdf page 157 Summary here http://dragonfly75.com/motorbike/timingcurves.html I don't think ignition timing is the thing here. Maybe fuel/air mix? So, the 2021 Works Bikes have the V-0494 throttle body. 2022 Nitro has V-1612 Racing Throttle Body, same as the 2022 R-3s. It could be possible your TPS needs to be reset, or a new plug and a little less oil on the filter? Please don't take this the wrong way, but, maybe a slight technique adjustment? Throttle before an obstacle, let the engine gain rpm, then dump the clutch? Of course, I have zero idea of the level you ride/train at... but I've seen some guys from up there in BC modify the throttle cable guide.. to have a 2 position throttle. Full On or Full On. Something about a drill bit and some duct tape? Pretty sure these are some of the quickest revving bikes out there, but I've never put one on a dyno. Quote Link to comment Share on other sites More sharing options...
faussy Posted December 23, 2021 Report Share Posted December 23, 2021 Advancing the timing would give you the characteristics you are after. Ive done it before on shercos and sy scorpas. No idea what the ignition is like on a vertigo however Quote Link to comment Share on other sites More sharing options...
richtr300i Posted December 23, 2021 Report Share Posted December 23, 2021 What I've read is advanced timing can lose top end. A vertigo's timing can be advanced using software, within pre-established limits in the software. Quote Link to comment Share on other sites More sharing options...
Alexle Posted December 24, 2021 Author Report Share Posted December 24, 2021 Yes the good part about the vertigo ignition timing is you can choose what rpm vs throttle opening you want to advance or retard timing. The software allows you to manipulate the factory map within a certain threshold but it doesn't allow you to change the map fully. This is the settings I've been playing around with. Which seems to make it feel a bit more snappy. Although I'm really just doing trial and error so if anyone has any suggestions, I'm all ears. Quote Link to comment Share on other sites More sharing options...
Alexle Posted December 24, 2021 Author Report Share Posted December 24, 2021 Oh and my fuel mapping is as follows in case there's interest. Quote Link to comment Share on other sites More sharing options...
richtr300i Posted December 24, 2021 Report Share Posted December 24, 2021 Sent you a message. Quote Link to comment Share on other sites More sharing options...
119lucam Posted January 5, 2022 Report Share Posted January 5, 2022 Ciao anche io sto cercando di rendere la mia R3 250 più reattiva. Ho fatto molti test con WiFiCom e non ho ancora trovato la mappa migliore. Credo che il set IG sia la soluzione. Ho scoperto che alcune bici hanno la mappa 1 sull'asciutto e altre la hanno al contrario. Ora non so come essere sicuro che la mappa 1 sia in posizione asciutta. Qualcuno sa come essere sicuro della corrispondenza delle mappe sul wificom alla posizione dell'interruttore? Proverò a togliere il volano e fare una mappa adeguata. Se qualcuno ha esperienza in merito sono felice di saperlo. Quote Link to comment Share on other sites More sharing options...
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