Tein EDFC vs Tanabe TEAS

GruppoB · Sep 19, 2007, 01:01 PM

Tein's EDFC feature where you get to choose the damper of the shocks from the driver's seat is really a good feature. When I was riding in my friend's STI with the Tein Coils w/ EDFC, he was testing out thefeature for me but the response for the damper seemed a little too laggy.

I was thinking of getting the EDFC but I've been hearing good feedbacks about Tanabe TEAS. Far as responsive wise, I heard that the TEAS reacted much faster and the damper was lot more noticeable than the EDFC.

Anyone actually have the TEAS on the Evo's?

Noob4life · Sep 19, 2007, 10:45 PM

I don't see how the response from the damper seems laggy.... a motor is turning the adjustment mechanism on the shock. those adjustments are effective as soon as the next piston travel inside the shock, where exactly does the lag come in? Unless the adjustments aren't actually effective..........

Also, not for nothing, but I'm not sure I want a computer kicking my damping down to a progressive, soft damping level when I'm diving into a corner at 80mph on the track.

voidhawk · Sep 21, 2007, 08:45 AM

Quote:

Originally Posted by GruppoB

Tein's EDFC feature where you get to choose the damper of the shocks from the driver's seat is really a good feature. When I was riding in my friend's STI with the Tein Coils w/ EDFC, he was testing out thefeature for me but the response for the damper seemed a little too laggy.

I was thinking of getting the EDFC but I've been hearing good feedbacks about Tanabe TEAS. Far as responsive wise, I heard that the TEAS reacted much faster and the damper was lot more noticeable than the EDFC.

Anyone actually have the TEAS on the Evo's?

I don't think the EDFC is meant to be "real-time" like the TEAS. It just allows for in car adjustment at the push of a button, but it doesn't react by itself to changing conditions while you are driving like the TEAS. It's an interesting idea, but it totally depends on how good the valving on the shocks is. Many shocks are not consistent in their adjustability, meaning if you change from setting A to setting B and back to A, it will not behave like it did to start with, because there is too much slop in the mechanical adjuster of the valving.

I've used the EDFC with Flex dampers on my old car, and it was a nice toy to play with on a track day (and grocery saver when going over speed bumps), but the settings weren't consistent enough that I would have trusted the computer to do it for me automatically. No personal experience with the TEAS though. If I were to buy another set of coilovers, I'd spend the extra money for the electronics on better shocks instead, ultimately you get more out of it that way.

GruppoB · Oct 3, 2007, 03:30 PM

When it's a real time, that means that it's more active right?

voidhawk · Oct 3, 2007, 04:28 PM

Quote:

Originally Posted by GruppoB

When it's a real time, that means that it's more active right?

"real-time" means it changes the shock settings automatically based on some monitored parameter. For example you can monitor vehicle speed, and it will automatically make the shocks softer for high speed straights, and then harder again as soon as you slow down for a turn. (Just an example, I don't know what parameters the TEAS actually looks at).

Not real-time means you (the driver) need to push a button to change the shock setting.

Noob4life · Oct 3, 2007, 09:31 PM

Quote:

Originally Posted by voidhawk

"real-time" means it changes the shock settings automatically based on some monitored parameter. For example you can monitor vehicle speed, and it will automatically make the shocks softer for high speed straights, and then harder again as soon as you slow down for a turn. (Just an example, I don't know what parameters the TEAS actually looks at).

Not real-time means you (the driver) need to push a button to change the shock setting.

AFAIK it's based off the VSS.

GruppoB · Oct 4, 2007, 10:52 AM

Quote:

Originally Posted by Noob4life

AFAIK it's based off the VSS.

Yeah its based off of the VSS (Vehicle Speed Sensor), their website has alot of info actually, duh

http://www.tanabe-usa.com/coilovers/TEAS.asp But still wondering if anyone has run they system or has a first hand review on the product.

VenomEVO8 · Oct 4, 2007, 10:56 AM

We use somewhat the same motors in the lighting we build.. they are somewhat fast but doesn't move lighting speed... I would rather have the slow speed to see how it reacts when you are changing the setting...

frijolee · Oct 17, 2007, 08:54 PM

EDFC just uses stepped servo motors on each corner. I'd guess from full hard to full soft is ~5-6 seconds.

thrty8street · Oct 18, 2007, 08:29 AM

Can you change the stiffness setting while the car is moving or doe the car have to be at a stop?

frijolee · Oct 18, 2007, 10:10 AM

Rolling works fine (and is pretty helpful for fine tuning things on the track). The internals must not be a pure orifice realign or it would seem like you could lock your shock out between positions. This definitely doesn't happen.

thrty8street · Oct 18, 2007, 10:47 PM

Quote:

Originally Posted by frijolee

Rolling works fine (and is pretty helpful for fine tuning things on the track). The internals must not be a pure orifice realign or it would seem like you could lock your shock out between positions. This definitely doesn't happen.

What exactly does this mean? Can you explain it in laymen terms?

boostinpsi · Oct 18, 2007, 10:51 PM

I think he means that the internals arent super "tight" together if that makes sense so they are not as accurate but allow for on the fly adjustment.

thats why high end companies like DMS, Moton and Penske do not offer such systems.

MD@ · Nov 10, 2007, 05:35 PM

The EDFC uses stepper motors on top of the shock adjustment knob. It is indeed adjustable in real-time as you move, it is not active however. Similar system are available from Cusco and now GReddy (saw it at SEMA).