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roger(at)smartdrive.com
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 Posted: Sun Apr 18, 2010 8:07 am Post subject: Lightspeed Ignition Module |
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Completing the firewall forward on a RV-8A O-360 4 cyl. I have one mag and one Lightspeed Plasma III. I am locating the Ignition Module would like some feedback on experiences from others. My concern is ignition noise in radios and interference with sensor wires. Mounting on the cold side of the firewall is difficult due to space unless I mount the module right behind the panel causing potential interference. Has anyone experienced noise or sensor interference problems and what did you do to solve them? Has anyone mounted the module on the hot side of the firewall? How did you protect against heat and moisture? Any problems with a hot side installation?
Also the instructions has the power go straight from the battery or battery side of the master relay to a “pull-able” circuit breaker and allows the unit to be turned on and off with a standard mag p-lead type connection.
“all Plasma II Plus and Plasma III CDI systems can be operated with a standard aircraft key switch. A "P"-Lead (wired to the output connector) is provided and should be connected to the key switch in the same way as the magneto "P"-Lead. There is no current drain on your battery when power is supplied via the input connector and the key switch is in the off position. A pull-able circuit breaker should still be installed in the positive power wire.”
Even though it states there is no power draw you still have a unprotected wire from the battery to the panel breaker that is hot 24/7 and unless you pull the breaker, the wire is hot all the way to the module even when parked. This just does not seem reasonable. I would like to know what others have done.
Thanks, Roger Smart
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welchvincent(at)hotmail.c
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| Posted: Mon Apr 19, 2010 7:35 am Post subject: Lightspeed Ignition Module |
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Roger,
Mine is also mounted on the hot side of the firewall with a shroud and blast tube. I have had no problems in the last five years. I believe that the primary reason that Klaus wants a direct connection to the battery is to minimize voltage drop considerations during starting. There were some instances of the starter pulling the voltage down at the buss to levels that caused problems with reliable lightspeed operation.
Vince
Date: Sun, 18 Apr 2010 11:06:35 -0500
From: roger(at)smartdrive.com
To: rv8-list(at)matronics.com; rv-list(at)matronics.com
Subject: Lightspeed Ignition Module
Completing the firewall forward on a RV-8A O-360 4 cyl. I have one mag and one Lightspeed Plasma III. I am locating the Ignition Module would like some feedback on experiences from others. My concern is ignition noise in radios and interference with sensor wires. Mounting on the cold side of the firewall is difficult due to space unless I mount the module right behind the panel causing potential interference. Has anyone experienced noise or sensor interference problems and what did you do to solve them? Has anyone mounted the module on the hot side of the firewall? How did you protect against heat and moisture? Any problems with a hot side installation?
Also the instructions has the power go straight from the battery or battery side of the master relay to a “pull-able” circuit breaker and allows the unit to be turned on and off with a standard mag p-lead type connection.
“all Plasma II Plus and Plasma III CDI systems can be operated with a standard aircraft key switch. A "P"-Lead (wired to the output connector) is provided and should be connected to the key switch in the same way as the magneto "P"-Lead. There is no current drain on your battery when power is supplied via the input connector and the key switch is in the off position. A pull-able circuit breaker should still be installed in the positive power wire.”
Even though it states there is no power draw you still have a unprotected wire from the battery to the panel breaker that is hot 24/7 and unless you pull the breaker, the wire is hot all the way to the module even when parked. This just does not seem reasonable. I would like to know what others have done.
Thanks, Roger Smart
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