Your graph takes an up swing at 2 but the up swing hit again at 3. Your IVO # is 3.

Dawg's 575 cams did not upswing at 3, was a steady rise. We did it twice to make sure. His only up swing was 2 so his IVO # is 2.

Both the 555 and the 575 cams have similar intake open and close *. Weird I say.

 

No dought overlap plays a roll in the upswing, this is IF the IVO reading is taken from the map.
Thanks for the help Ive been reading all of these replys. Lots of great info!

 

Yup, here's both my cam tune runs. He had me do it twice to be sure.

 

Now I am a little confused on the IVO setting from the analyzer graph. Here is my graph and I thought for sure the setting was a 5, BUT I also have the noted second upswing at 6. Does this mean that I could/should use 6 instead of 5? I thought I looked just like the sample in the CAMtune help file, but I am having doubts now.

 

Dayummm

Your up swing is 5 but up swings more at 6. It's OK to use one number less. Just me, but I would use 5 Jim.

6 is a very late opening cam.

What cam are you running?

 

Slave driver, ain't I? LOL

 

This is a stock cam in an 07 Ultra with SEAC and SE performance exhaust.

 

What .mt8 calibration were you using and was the bike warmed up when you ran your cam data for 3 minutes or was it from a cold start?

 

Base calibration file was CPZ176-03-A0.MT8. Bike was warmed up. The engine temp was a low of 82 degrees C to a max of 114 degrees C during the data collection for the CAMtune.

 

Also, if you look on Page 77 of the TTS Tuning Guide (Revision 1.30), my analyzer graph is almost identical to the sample graph on that page (has the two up swings with the second one at 6 being more). TTS recommends using 5 but says "It is permissible to set it one less (i.e. 4) using your judgement". I used 5 and did my Vtune runs. Bike seems to run very well now. Of course it ran well before using the old .mt7 calibration!! So, it is at least as good as before without getting numbers from a dyno. I'm happy!