Andi
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| posted on 14/11/08 at 10:19 AM |
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SAW & PIP
Im almost ready to tackle the dark art of Megajolt, and although there isnt a great deal of info on the net, SAW & PIP keep popping up.
What are they?????
Thanks in advance.
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coozer
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| posted on 14/11/08 at 10:37 AM |
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just an in out type signal for timing. Nothing to worry about, just connect to the right terminals and hey presto!
1972 V8 Jago
1980 Z750
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r1_pete
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| posted on 14/11/08 at 10:47 AM |
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As Coozer says, treat it as black box, as long as the connections are correct it just works...
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02GF74
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| posted on 14/11/08 at 10:55 AM |
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SAW = Spark Advance Word ; the width of the pulse represents the spark advance, is sent to EDIS.
PIP = Profile Ignition Pick-up, signal to represent engine speed.
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MikeRJ
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| posted on 14/11/08 at 12:34 PM |
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quote:
Originally posted by 02GF74
SAW = Spark Advance Word ; the width of the pulse represents the spark advance, is sent to EDIS.
PIP = Profile Ignition Pick-up, signal to represent engine speed.
Just to expand slightly on this, SAW is an input to the EDIS module, and generated by the Megajolt/squirt to control spark advance. With no SAW the
EDIS defaults to 10 degrees BTDC, which is why you can run a carb'd engine without a Megajolt connected to the EDIS.
The PIP signal is an output from the EDIS unit and goes back to the Megajolt/squirt so it can determine engine speed and when it should send the SAW
pulse back to the EDIS.
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sebastiaan
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| posted on 14/11/08 at 01:04 PM |
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have a read here
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mediabloke
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| posted on 14/11/08 at 01:10 PM |
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^^^What they said, plus if you find that your rev counter bounces around and then disappears, wire the tacho input to the PIP connection instead of
the tacho output on the megajolt.
Result: works a treat! 
[Edited on 14/11/08 by mediabloke]
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