Hello This is my first post here hopefully I can get some help.
Ive decided to build a 16V to run on R1 bike carbs. The carbs themselfs arent what I am scared of However taking care of the spark is scaring me ****less.
I have deccided to use a MSD 6AL-2 Programmable ignition box (which will be wired in according the the manual).
I know I need to use the 7 Pin ICM to convert the 5V hall sender signal to a usable 12V signal for the box. And all this sort of thing.
I know that under load the amount of vacuum in the runner will change which will throw out my timing causing a re-adjust to become necessary. As such I have done some reading and found the following Timing advance table (found here)
I then entered these values into an excel spread sheet and plottted them on a scatter plot with lines. I was expecting this to yeild faily smooth lines with a common (or fairly common) shape and advance at idle. However this is not the case. In fact My lines very significantly before the 2600 RPM Range. Should I adjust the lines to make the shape more alike or is this a bad idea?
Fig2.0 Graph I have generated based on numbers from previous table
Also, Is anybody running this Box already? Can the map sensor be used to adjust the timing based on vacuum or does this only work for boost?
Thanks for anything you have to say