TEMS Suspension Info Needed

[131OWN]

I have a question regarding TEMS shocks found in Soarers and the like non airbag. There are 4 wires that activate them, any idea how to control them

[131OWN]

Someone must know how there struts work?

[CrUZida]

Are you sure there are only 2 wires and not 4 ?

[wilbo666]

MZ12 Tems is only two wires I think? My memory is poor

Normal / Sport.



Cheers
Wilbo

[CrUZida]

Wilbo and I have been discussing this.

2 wire is most likely just Normal/Sport (ie, 2 settings).
4 wire is most likely a stepper motor with multiple settings. MA70 has 4 wires TEMS.

[Sciflyer]

with the z30 there are 4 or 5 wires even though there are only the two normal/sport settings. if you play with the shaft in damper the motor turns there is a lot of range in it so the normal and sport settings would be just two predetermined points in that range, thats why you also have the diagnostic mode (the so-called trackday setting) that probably turns the stepper further and corresponds to a much stiffer damper.

this is part of the reason why you can make a tems/airbag soarer handle better than a stock non-tems coil sprung one, contrary to popular belief...

[131OWN]

I have the 4 wire TEMS with Coils, I'm wondering what is involved in making a independent controller for these shocks

[CrUZida]

HKS make an aftermarket controller for the MA70 that can probably be adapted.

I'm not sure if anyone else does.

[131OWN]

I'll do some research

[Sciflyer]

Would be interesting to see and i dont think it would be difficult, armed with the soarer workshop manual and a spare TT damper or V8 airbag.

When i played around with an airbag strut you could adjust it from pretty much rock solid to so soft it would compress almost under its own weight, so there is a lot of range there

The trick of course if your going to make a controller up is to make sure youre starting with decent dampers in the first place as most of the factory ones in Soarers by now are way past their best

[Z2TT]

Hi,

When stripping my soarer today, I noticed that there is a little metal box hidden behind the left rear armrest. There was a label on this metal box saying "Absorber Control".

[CrUZida]

MA70's TEMS box is in the passengers footwell.

[thechuckster]

fwiw: TEMS is only going to adjust shock absorber compression and rebound rates not ride height

fwiw 2: the MZ12 TEMS rear shocks appear to only have two settings (that I could find with some rudimentary testing) and the motor simply rotates the control blade about 90 degrees to change between the two.

edit: in response to the first post - the 4 wires are so the motor can position the control blade sticking out the top of the shock. I'm guessing the 4-wire jobs are stepping motors and the two wire job is a reversable motor with a limited range of travel.

If someone's interested, I have the control motors from the MZ12 rear TEMS in the workshop somewhere.