Moto Guzzi Stelvio (merged) threadfest...

Discussion in 'Moto Bellissima: All Other Dualsports' started by young skywalker, Jan 8, 2006.

  1. Lomax

    Lomax Nanu-Nanu Adventurer

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    Danged, Farkles for this thing are expensive and hard to find, and all the directions are in Italian. :lol3

    It will be a work on the bikes, in the garage, and stay away from the snow type of weekend I think. :evil

    Marc
  2. stevie88

    stevie88 That's gotta hurt

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    [​IMG]

    Mistrial rocks.
  3. Lomax

    Lomax Nanu-Nanu Adventurer

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    Yes they do. :clap:clap and speaking of Mistrial's, has anyone figured out a way to keep them from after-firing a LOT on deceleration?

    Marc
  4. stevie88

    stevie88 That's gotta hurt

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    Todd over at GuzziTech says he can. I kind of like it myself.
  5. WitchCityBallabio

    WitchCityBallabio Guzzi weirdo

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    Shocking what the stock can weighs when you take it off isn't it? It's worth it just for the weight savings. :D

    Me too.
  6. Sock Monkey

    Sock Monkey 99% bullshitter...the other 1% is just lies

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    The new muffler opens things up a bit since it removes the CAT. As a result, you're running even leaner than you were, which is what's causing the popping and farting. To fix it, you need to richen the mixture, which means futzing with the ECU/EFI. Todd has one solution (arguably the sure-fire, plug-and-play and be done solution.....$$$$), but there are others out there (Redline Racing says they can reflash your ECU for you if you give them your list of mods for $300, you can go buy a PC-V and roll your own maps, go buy Tune Boy and roll your own, etc).

    Two notes on this stuff. First, running lean means running hot. That's never good. However, point two is if you run richer, you use more fuel, so your mileage suffers (by how much is TBD). Pick your poison......

    -SM
  7. WitchCityBallabio

    WitchCityBallabio Guzzi weirdo

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    Todd also reflashes ECU's.
  8. Boro128

    Boro128 Adventurer

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    Biggest Cock I have ever seen:lol3
  9. ripngrip

    ripngrip Adventurer

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    :rofl Made my Friday morning...
  10. dirtymartini

    dirtymartini Shaken, Not Stirred

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    Or for even less money you can use the Fat-Duc emulators....of which I have for sale (Shameless plug) I decided to have Todd flash my ECU so the emulators are up for sale.
  11. Precis

    Precis Maladroit malcontent

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    Surely we're talking a relatively minor adjustment here? Without seeing the existing map you can't know if it incorporates a Long Term Fuel Trim, which the ECU 'learns' and adjusts over time, but just richening it up a couple of points acording to an exhaust gas analyser should be possible: I doubt you need to rewrite the entire ECU.

    I know TuneBoy charges a LOT of money to provide a cable, software and a unique-to-the bike 'key'; as an alternative, it might be worth seeing if the freeware TuneECU software can interrogate the Guzzi's ECU: it works fantastically well for some Aprilias, KTMs and Triumphs. They make available the software and some alternate maps on an honesty donantion basis.
    Using a $10 interface cable from fleabay, I recently installed a map created by a guy in California specifically for our common models: he tuned it for 87 Octane fuel and even without a gas analyser, my consumption improved by 25%, the formerly pretty smooth V-twin has become turbine smooth - and there is so much extra power that just whacking on the throttle tosses the front wheel (of a 250kg bike) in the air.
    His point was that the original map was too rich pretty much everywhere, to ensure the engines run cool and to hide some response glitches. Of course, extra fuel just washes oil off the cylinder walls and promotes carbon build-up: using a dyno at steadily more throttle, he has produced the bike the factory SHOULD have made in the first place. He requests a $25 donation....

    I wonder if this can be done for Stelvios too?
  12. Mr. B

    Mr. B RiderCoach

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    Does this apply to us Yanks? Running too rich to keep the engine cool does not seem to be the case with US-spec vehicles!
  13. Precis

    Precis Maladroit malcontent

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    Mr B - I cannot speak for you poor, oppressed souls! But the fellow that did this remapping (admittedly of a 10-year-old bike, as it is now) lives in California - is that still considered part of America? :rofl
    You will be blighted by o2 sensors, lambda sensors, Cats, dogs, deer, moose and probably elk too.
    What brand is the Stelvio's ECU?
  14. Adam R

    Adam R Been here awhile

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    They use a Marelli (5AM from memory) - popular ECU choice. Interested to know if the solution works.
  15. Precis

    Precis Maladroit malcontent

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    Here would be a good place to start a'lookin':
    http://www.tomhamburg.net/TuneECU_En/index.html

    If there's enough demand, perhaps Tom in Hamburg (Germany) and his colleagues would be able to make their software work for Guzzis - then it will just need someone to create more accurate maps: this requires knowledge, (a bike, obviously), extensive dyno-time, an industrial-grade vehicle exhaust gas analyser and a good deal of patience.

    But as a mere user who has remapped both my own and my wife's Aprilias - the changes are astounding: what was a pretty smooth bike before became turbine-like; the power delivery & throttle response is noticeably snappier and more insistent and best of all, the fuel burn-rate was improved hugely.
    If there's a down-side, it is that the bike is marginally slower to start up from cold: being EFI, I have a start-up sequence that I ALWAYS perform (pilot training!): bike in neutral, no clutch, kill switch off, key on - allows all sensors to calibrate, all check-systems to cycle; kill-switch on - allows stepper-motor to cycle and fuel pump to prime; then thumb the button, no throttle.
    It will crank 3-4 times before firing up; I fancy that before the remapping, it maybe cranked over a bit less. A small price to pay!
  16. GT-Rx

    GT-Rx Guzzi freak

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    Thanks Doug.

    Guys, I've been nostrils deep in Guzzi F.I. since '01. If you want to do it once and be done with it, I can save you a ton of time and money... and as we know, you get what you pay for. I've invested the price of a new Guzzi in hard/software and training to do it properly, as well as working as Dynojet's "Technical Advisor" for all things Guzzi since '01 as well.
    FatDucs are proven not to work with the newer ECUs (sorry dirtymartini)... though they'll work OK on the '00-05 big block Guzzi (MM15RC ECU) with one lambda/02-sensor.
    I fixed our friend 'ToadRide's '12 Stelvio that was corrupted while at Redline (hopefully Doug will expand from there), and I've also now re-flashed at least two corrupted ECUs that were programed with shareware programs. Caveat Emptor.
    The bikes (as delivered) are horrifically lean due to Euro emission regs, though they run fair all things considered... but extreme engine temps are a resultant. Pop-on-decel is an extreme lean condition at closed throttle... and for those who know AFR's you'd cringe to see how they fuel bone stock. If you modify the bike at all (or even if not), you owe it to the bike to correct the fueling so it will run cooler, deliver more power, and offer much smoother throttle control/response.
    Any one in the Coastal L.A. area is welcome to come try it. I can do all Guzzi, most Ducati, Aprilia and KTM twins.
    Testimonials on the ECU flash here; http://forum.guzzitech.com/forum/235/4129.html#p34071 -- and Power Commander info here; http://forum.guzzitech.com/forum/235/2686.html - Dynojet is working on the dual 02-sensor models still, but I have the solution now.
    Happy to answer questions direct e-mail shown below in my sig, replace at with @.
  17. dirtymartini

    dirtymartini Shaken, Not Stirred

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    No problem, there are enough bikes that they will fit I'm sure I'll find a buyer:deal
    With the nasty non spring weather we're having in the northeast I haven't had a chance to try the re-flash yet. I reset the TPS and am just waiting for the weather to cooperate.
  18. MoToad

    MoToad Been here awhile

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    Nelson BC, fer now.
    I back Todd solutions 100% of the way. After 'straightening me out', I took the plunge for the complete Power Commander setup. And I am totally glad I did. Unfortunately, as I think some of you know, I didn't get to enjoy it long enough due to the guy behind me probably texting and driving at the same time.
    But, I can tell you that when you hit the trail with Todd's setup, it doesn't just end there. Carrying a netbook you get the free download of analysis software that, at say, 500 mile intervals, you capture a readout of the present ECU activities which you email to Todd. He then makes more minute adjustment and sends you back the adjustment which you input. This can go on till it just can't get any better or you get rear ended.:rofl Preferably the former.
    Todd is a true, down to earth, no nonsense tech and I am convinced that there is no one knows more about Guzzi fuelling than him.
    Money well spent.:D
  19. Ham

    Ham Been here awhile

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    Montana
    Update as we rode just north of Carefree into the wilderness. Here is a picture of the switchbacks into the northern route from carefree.

    [​IMG]

    Then off to Bartlett lake

    [​IMG]

    Temperature was 72 degrees up there and 84 degrees in the city. I do find when in heavy traffic on Scottsdale drive the engine heat becomes uncomfortable. I steadily average 40 mpg when riding through the city and quickly go up to 50 mpg once out and going in the rural areas.
  20. RAD3766

    RAD3766 0ld n00b

    Joined:
    Oct 18, 2012
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    Sugar Land, Tx. / NY harbor
    After waiting very patiently for an insurance settlement check to show up, I'm very pleased to announce I paid a visit to Mike at MPH yesterday and ordered my Stelvio. :clap:clap:clap (MPH is less than 20 miles from my house, arent I a lucky slob?)
    While waiting patiently, Ive read and reread every review I could find and read this entire thread front to back a few times over making note of whats great about the Stelvio (lots!) and whats not so great (very little).
    I already know to check the aux lights, check ground wiring, have the TPS and TB's checked (Mike said he would do this) and go over the whole bike with a torque wrench and a bottle of 242 among other little things.
    :bow Thanks to everybody who has contributed to this thread, glad to read of everybodys experiences with the Stelvio, sure confirmed my idea that Ive picked the right bike.
    Jeebus, its gonna be a l-o-n-g month waiting for it to show up, now I know how the rest of y'all mustve felt. :wink:

    Bob