|
Post by revhead1957 on Feb 20, 2010 16:18:23 GMT 10
Interesting. I would have thought taking out the snorkel or having a free flow filter would have increased the air flow and made it lean. Interesting also how the addition of the snorkel run showed the beginnings of a flat spot in the mid range - a common complaint. I guess it just goes to show how the design of the airbox is so finely tuned and balanced with lots of factors affecting performance. (And how there is no substitute for a logical approach and testing numbers) Do you still intend to do a run with 2 long trumpets? The reason I ask is that I would like to get more midrange, I am not too interested in the top end.
|
|
Mattjin
True Stormer
I don’t think you are stupid. You just have a bad luck when thinking.
Posts: 1,168
|
Post by Mattjin on Feb 20, 2010 19:00:27 GMT 10
I might be just leaving the bike as it is, I have been pretty happy with it since jetting it.
Also a note about the graph. If you look carefully at the Snorkel In graph, it is the line that I point to that is the power. The line above that looks like the power curve is actually the AFR (sort of a dotted line). Extremely lean! It ran so crap that we shut down the run.
At this point, I would suggest anyone wanting to jet their bike should maybe try what I have done. The jets cost me something like 8 or 9 bucks each, and taking the snorkel out is free. I still think those that had problems with no snorkel have already jetted richer with it in, and most likely ran aftermarket air filters. The fact that it changed the mixtures means it does something to airflow, and I would go as far as to say it is a restriction. So I am even more happy that the restriction is gone and the bike runs well. Anyone who wants to try it, it only costs less than $20.
|
|