MSD 6014 not using MAP
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MSD 6014 not using MAP Hi,
I'm running a carbed 416 LS3 for road racing. I will not be using a MAP sensor. Looking at the programming software for the MSD 6014 box that I'm using, I see that there is one way of setting up the timing for CUSTOM 1 where you have a tab for engine speed vs RPM and then a second tap for MAP vs timing adjustment. And then for CUSTOM 2-4 it is a 2D table for timing at various RPM and MAP values.
Question 1 - Why is CUSTOM 1 configured differently than CUSTOM 2-4? Just seems odd that it's different if both ways can be configured to get the same result
Question 2 - If I'm not hooking up the MAP sensor, what should I do with the timing table? I figure for CUSTOM 1, I can set the Ignition Timing to 0 for all the MAP values. And then for CUSTOM 2-4, I would need to set the ignition value the same for all the cells in each column so that the MAP reading has no impact. Again, it is weird that I have to do two different methods to get the same sort of result.
I do not see any way to disable the MAP sensor and take it out of the equation. Is there?
Thanks,
Sal
I'm running a carbed 416 LS3 for road racing. I will not be using a MAP sensor. Looking at the programming software for the MSD 6014 box that I'm using, I see that there is one way of setting up the timing for CUSTOM 1 where you have a tab for engine speed vs RPM and then a second tap for MAP vs timing adjustment. And then for CUSTOM 2-4 it is a 2D table for timing at various RPM and MAP values.
Question 1 - Why is CUSTOM 1 configured differently than CUSTOM 2-4? Just seems odd that it's different if both ways can be configured to get the same result
Question 2 - If I'm not hooking up the MAP sensor, what should I do with the timing table? I figure for CUSTOM 1, I can set the Ignition Timing to 0 for all the MAP values. And then for CUSTOM 2-4, I would need to set the ignition value the same for all the cells in each column so that the MAP reading has no impact. Again, it is weird that I have to do two different methods to get the same sort of result.
I do not see any way to disable the MAP sensor and take it out of the equation. Is there?
Thanks,
Sal
Last edited by ssanto; May 2, 2024 at 03:16 PM.
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From: Alaska
Thread Starter
Teching In
Joined: Dec 2023
Posts: 48
Likes: 7
My cam guy gave me a good set of baseline instructions for the timing on this LS3:
- CRANK 0-500 RPM 17*
- IDLE 500-1500 RPM .38*
- TRANSITION 1500-2200 RPM 34*
- 2200- TO MAX RPM START AT 28* AND GO FROM THERE
What benefit would adjusting the timing based on manifold pressure give me? I understand that I do this on my street motors to raise timing at part throttle cruise.
Thanks,
Sal
