You are currently viewing our forum as a guest, which gives you limited access
to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join RX8Club.com today!
I picked up an innovate LMA-3 and am totally smitten by it. Will be using it to run my boost, fuel and AFR gauges as well as record those parameters and 2-axis acceleration, a temp channel and RPM. I will be using the RPM to sync my data logs from the innovate group to my AccessPort logs (My computer will not talk to my AP dongle.)
Any way. Innovate sells an inductve clamp. I am wondering if anyone has run it or can speak from actual experience of one used on an RX8. It is part number 3727. My worry is that, like the crappy pick up on a dyno, I will not have a good signal or worse it just will not work. From the LMA-3 manual
The inductive clamp measures the magnetic field created around a spark plug wire when spark
current flows. If a metallic shield covers the spark plug wire, the inductive clamp may not work
because the shield would short out the magnetic field. Like all inductive clamp rpm pickup
devices, some ignition systems like Capacitive Discharge Ignition (CDI) or multi-spark ignition
systems may not work properly with the inductive clamp pickup because the pulses created may
be too short in duration. Multi-spark systems confuse the ignition timing measurement because
the RPM converter cannot distinguish which ignition pulse belongs to which crank rotation
LAM-3 will work only on the tach output of the ignition system in this case. The inductive clamp must be clamped around ONE lead only. Clamping it (for example) around all wires of a coil-on-plug pack does not allow it to work because the magnetic
fields of the wires most likely cancel each other out.
It is only $20, so I might ought just buy it and try it out.
Thanks in advance.
This ad is not displayed to registered and logged-in members. Register your free account today and become a member on RX8Club.com!
I would be interested to know how closely you check the readout compared to the tachometer in the instrument cluster. I am installing a Traqmate in my car, and when I used one of the coil ECU lines as my RPM input, the display on the Traqmate was low by about 12.5% (the Traqmate read 8300 RPM at the 9500 RPM redline). On the Traqmate you can set the number of cylinders to adjust this, but I would need to set it to 1.75 to get it to read correctly (and the Traqmate can only accept integers).