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 MSD 6530 SBC Weiand 142 
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Joined: Fri Feb 08, 2013 2:37 pm
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File to program MSD 6530 for a boosted application such as a SBC with Weiand 142 supercharger. For use with 2 BAR MAP sensor and locked advance or crank trigger.

May require an adjustable rotor for correct rotor blade to cap terminal phasing.

This is merely a suggested starting point.

This file is suggested to be used with base timing set 45° at 3000 RPM with the MAP connected to the manifold or a source of vacuum above 10” Hg. Above 400 RPM and with more than approximately 6” Hg vacuum there will be no retard so the initial setting will give 45° for cruising with level road load and moderate acceleration. Below 12 PSIA (approx. 6” Hg) the MAP will retard about 1 degree per pound of intake pressure increase. 15 PSIA is near the crossover point from atmospheric pressure to boost and the timing will be 35 at that point and retard one degree per pound of boost above 15 PSIA.

It is the responsibility of the user, whoever uses this file, to be sure all the settings in EDIT, Rev Limits, Start Retard, Cylinder Count, etc, are compatible with your engine and purpose.


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YB SBC Weiand 142.IGN [28.67 KiB]
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Sun Sep 28, 2014 5:13 pm
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Joined: Mon Dec 29, 2014 1:26 am
Posts: 433
What are your thoughts on the 6530?

Do you know if it can be made to work with MAP sensors other than the standard GM parts?

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Mon Jan 05, 2015 2:27 am
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Joined: Fri Feb 08, 2013 2:37 pm
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I suppose you could if the sensor has the same resistance vs. pressure values as the sensor MSD uses which appears to be a GM sensor. If the sensor used has different pressure/resistance characteristics than the retard values displayed on the GraphView software the timing retard would not be correct or the same as the actual timing values on the engine. As far as I know, other than selecting the 1, 2, and 3 BAR sensors, the MSD software does not allow configuring the input channel for different input values the way you can with data logging systems and software like Innovate LogWorks.


Mon Jan 05, 2015 4:53 pm
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Joined: Mon Dec 29, 2014 1:26 am
Posts: 433
Nope, totally different sensor. 4-BAR Freescale part. It's a normal 0-5v output but the scaling is different than any of the GM ones. Voltage at atmo is around 1.18v, pressure range of 3-58psia. And only $10 each.

Image

http://www.digikey.com/product-detail/e ... ND/1168412

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Tue Jan 06, 2015 12:16 am
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