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Old 08-10-2010, 02:41 PM
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MSD MAP sensor for vacuum curve?

Can I use the MAP sensor on my programmable 6AL2 to map the curve for my vacuum distributor?

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Old 08-11-2010, 04:34 PM
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I'm not really sure where you are going with this. The MAP sensor wiring is an input used to map a Boost retard.

The map sensor will see the same manifold signal, assuming you have your vacuum advance connected to a manifold source.

To that end, enlighten me on what you have in mind??
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Old 08-11-2010, 05:11 PM
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If the circuitry only takes out timing then I guess it's a no go. However, if the MSD could read the vacuum and add timing as the vacuum builds then I could use it to add timing during cruise and of course still withdraw with drop in vacuum.
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Old 08-11-2010, 06:56 PM
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Actually the Map sensor and the MSD only see pressure. The software may convert to vacuum for the user??

Low pressure (high vacuum)= no boost retard
High pressure (low vacuum)= boost retard

You should read the instructions that came with your MSD. And read the instructions for the software program they supply. It's hard telling what you might dream up to do. Good luck.

Quote:
Originally Posted by mashori
If the circuitry only takes out timing then I guess it's a no go. However, if the MSD could read the vacuum and add timing as the vacuum builds then I could use it to add timing during cruise and of course still withdraw with drop in vacuum.
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