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REF: Engine Control 50f


Discussion of Old / New Ignition Maps From Various Sources

http://xlforum.net/forums/showthread.php?t=1422868

Post#117 - Xena commenting on 'Best Map'
All bikes are different and all like different timing. That taken into consideration, there is no “best” Map. Imho, there isn't that much different from the maps we write now as opposed to the maps Turbota initially wrote. The module is the same, the numbers in the cells are just changed around. No big revelation there and anyone with the module, a compatible computer, and the cable can experiment with changing numbers around. (I recommend starting with Turbota's Maps as a baseline, then alter from there).

Also worthwhile to note that Ron ran his own Map in his high compression bike with good power and no problems. Additionally, several folks on this forum have been running Turbota's map in their high compression engines from day one with excellent results.

Post#123 - Xena responding to some posts:
(Original question posted by ~Grind~: So Rick, How do you come up with the values in your maps? Trial and error, educated guess, mathmatical formula?)

Hmm. Since it looks like nobody is gonna step up to the podium I'll answer. Everyone who is doing their own now started out using Turbota's Maps as a starting point and from there it was trial and error. As far as my developments, I'm finding that Buzzelli's guidelines are close. If I go one way or the other too much I can look at my spark plugs and confirm that something isn't right in addition to feeling it in the performance of the motorcycle. I also feel quite strongly about the fact that in order to get it as close as possible, one must be able to test ride the bike they are mapping after each tweak.

(Original comment by hdwgfx: I just didn't know the generation.)

Generation? There isn't any. There are lots of folks who have written their own Maps who have pm'd me and told me so but they don't wish to be known because they're afraid people will ask them for maps. Trial and error changing values in cells and uploading to the same module that Turbota used. Same concept. Different numbers. After awhile there are only so many timing curves that are gonna prove to work the best in a given bike. Finding that out is not difficult, it's just time consuming. (edit, upload, test ride) Don't let people make ya think it's rocket science because it's not. And as Lenster said, don't be afraid to change the values to get a feel for how the bike responds.

Post#125 - Xena Further Comments:
Well yes, people might want to put labels on it but the fact remains that the module and the software and the process to program it is the exact same now as it was when Turbota brought it to us.

You can write your own Map and call it whatever you wish, but the tools and the way you get there is the same whether you program it or someone else does so imo there is no 1st or 3rd gen. To most that implies the hardware and or software is new which is not the case at all.

Also keep in mind that many of us are writing our own, which is the basis of this thread. If you are interested in writing/loading your own you just need the module, the software, the cable, and a Windows based computer. As noted earlier in this thread I'm running what I've dubbed the “Black Panther” Map. It's just another Map in addition to the many Maps that lots of other people have written. I am really not interested in writing Maps for others, but rather in learning and sharing with folks who want to or are currently doing the same. Sorry for the long winded reply, I'd just rather not confuse people with that gen. stuff in this particular thread because from a technical standpoint it really doesn't apply at all.

Post#193 - Highly-Dangerous mentions Turbota's maps: MAP Modified 35 / MAP Modified 33 / MAP Modified 35 Revised
Post#194 - Rocketmangb replies: “All of those are ancient. Dont use them.”
Post#202 - Wedge comments:
Years ago, that was a plague at circle track. Everyone pushing the timing to around 36. Fact is that it doesn't do a damn thing for you except burn down a good engine. If memory serves me correctly, 32 was about the max you could go without it being detrimental. As I remember, the best was usually around 29 to 31. It's been a while, so I could be off a bit on the actual numbers, the principal is what is important.

If you are getting pepper flakes on the plugs, back the timing off. If you hear any ping under load while accelerating hard (that's the first test you should do), back it off. When I test max timing I run a gear higher than normal on a medium hill and see if it can take WOT without complaining, then I read the plugs to make sure they aren't screaming a different story. Any time you pull plugs, you should read them and look for pepper, write down your findings for future reference.


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