| Author | Message | ||
     T_man |
Could we have some willing participants list thier respective (unaltered learned) Front & Rear AFV's with the corresponding elevation of thier location (or if the elevation is not known, just the location). Example. Mine were; a) Moose Jaw, SK, Canada b) Elevation - 1900ft c) AFV F94.5 AFV R89.5 For tuning purposes fellas! Thanks! | ||
| Buell920 |
if it were as simple as that DELPHI, DDFI, PerGo......nevermind have fun. | ||
| Dalton_gang |
I think this was done like a year ago. You should try searching the archives. (Message edited by Dalton_Gang on September 27, 2009) | ||
| Doerman |
There was a thread in early 08 about this and it did not reach a conclusion regarding AFV and altitude. For instance, I live in Cali at 500 above sea level and routinely ride up to as high as 8,000 ft. I have not seen a consistent change in AFV as a result of riding at higher altitudes. | ||
| T_man |
Ok, thanks guys - forget it then. I also remember a thread about this - but without the elevation aspect. I am trying to get a bead on by what increment the ECU leans out the mixture with elevation. I just did a search and found all sorts of opinions and arguements relating this very topic - a can of worms indeed. I'll pull what info I can from there. (Message edited by t_man on September 27, 2009) | ||
| Dalton_gang |
http://www.badweatherbikers.com/buell/messages/290 431/400477.html http://www.badweatherbikers.com/buell/messages/290 431/357181.html | ||
| Bob_thompson |
T-man, my experience here at 4200 ft. is if I ride here at that elevation I have a certain AFV which usually does not change with a ride into the canyons and go to 9000 ft. but if I do an extended ride of many hours in the canyons up high they do change by reducing fuel somewhat. I cannot tell just how long it takes but usually quite a long time. I only check occasionally so its hard to tell exactly how long it takes. I think Zac4mac found a similar experience when he did his ride to Homecoming last year from Colorado to Wisconsin. Also a post by one of the good experienced fuel tuners, who will go nameless, has found that other sensors, such as barometric pressure and temp. play a part in fueling as well when changing elevations. | ||
| Carbonbigfoot |
I think there is a sensor that checks the manifold absolute pressure, and therefore adjust some parameter other than the afv's to modulate the fueling when changing altitude. I believe those that have the afv;s locked do not have an issue when riding low to high or back. Can we hear from somebody with locked afv's that has experience in a significant change in altitiude? FWIW, I live on the coastal plains in South Texas. No elevation change here for 100 miles in any direction... R | ||
| Xbswede |
locked AFV's and did a ride from sea level to 6000 ft with no issues. Ran smooth the whole time. |
