Data logger info post; contribute to this knowledge base!

Post anything you can about data loggers, to form a data base for newbees like me. stuff like what to log, correct install, your preferred list of sensors, any thing to avoid, etc. I will start by adding a link to my other post.
https://board.moparts.org/ubbthreads/ubbt...tml#Post2080624

First Greg...what data logger are you looking
at... do they use a 0-5 volt sensor

I ordered an RPM unit, I would assume 0-5 volts? Most common, correct?

Yeah 0-5 volt is the standard...been that way
for years... wish I could have found a few more
transducers when I was working.. they are all
basically the same.. K type thermocouples are
also the standard now for the temp spans we tend
to play within.. on my EGTs I use a 1/16"probe
just so it isnt blocking flow..I know the top fuel
guys use the big ones(I'm sure they are 1/4").. on
a probe like the EGTs.. the very tip is where it
reads.. just so you know

I have heard shock travel sensors are expensive , and an idea popped into my head about how to rig up a cheap (sorta) shock travel sensor?
A small air cylinder attached between the axle and the upper shock mount, tapped for an air line to a MAP sensor would read out a pressure change as the shock moved? That and a maximum travel indicator to calibrate it might be fairly accurate if the rate of sampling is quick enough? 100 per second ought to do it. The air cylinder would need to be small so as not to have too much effect on suspension, and set at zero pressure so it would graph shock motion in both directions. Any experience that might reflect on how this would work is welcome.

We use to use string transducers for that years
ago.. they were pretty cheap..we would zero them
at curb height with the driver... they would measure
either + or - from the zero so if it went into compression
it went - or + on extension... when I says cheap they
were a little over $100 back then... if its only going
int compression thats easy to check..a zip tie around
the shaft.... I dont know what they use now days on the
shock travel sensors... a camera under there can tell
you a lot also

Suburban and escalades have ride height sensors. I'm going to try and see if a can convert one

Rpm logger shock sensors are not that expensive. They have 2 kinds. Look on their site. Basically rheostat with an arm.

Yeah.. I think they use the arm and reastat style...if
they are in the 0-5 volt they would be great

Talk to Greg Kelly at MSI he is very knowledgeable when it come to these sensors.
MSI Shock sensors

Go here for EGT probes, they are the lowest price anywhere!

The Sensor Connection

This string transducer is what I used 99% of
the time.. they work well and are cheap
S-201 Travel Sensor 0-10"

WEB Price
$195
Weight 3

This 10" travel sensor will measure suspension, shock travel, throttle or virtually any motion (straight line) on your performance vehicle.
0-5 Volt works with any data logger!