Obioban's 2005 IR/IR Coupe

[Tbonem3]

Here is the data. Looks linear.

Can you regurgitate it? Do all pressure? dynos look like that?

Afaik, all springs are technically progressive? They're all harder to compress, as you're compressing them.

[mrgizmo04]

Can you regurgitate it? Do all pressure? dynos look like that?

Afaik, all springs are technically progressive? They're all harder to compress, as you're compressing them.

Hooke's law: resistance force = spring constant × distance compressed. Force is linear with distance compressed, so force vs distance graph is a straight line.

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[Obioban]

What am I looking at here?

817.3 DSC module— the zcp/csl module. More track focused/racey ABS and allows separate buttons for DSC and M track mode (so I can quickly turn off dsc again).

[Mike RT4]

I called H&R just to ask, they confirmed it's progressive. They also refused to disclose their spring rates, but then how did someone get the 360/685 number?...

I fucking hate companies that do that. Makes me want to just forget about their product and go with TCKs – my thought was that the FCM stuff seemed alluring down the road, so I wouldn't have to buy dampers twice.

H&R Germany were more forth-coming .

Andy they said the springs were progressive front and rear....

The kit I am referring to is PN: 29355-1

[Tbonem3]

So FCM says they're linear, but the manufacturer says progressive?

[Obioban]

So FCM says they're linear, but the manufacturer says progressive?

The manufacturer has said they’re linear and said they’re progressive, depending who they’re talking to. They told me linear 🙄

[Tbonem3]

Lol of course!

I just saw a set of H&R sport springs for sale by member Ramo/S54.m3 and you can see the coils wound more closely together at the top vs. bottom which would indicate "progressive" to me. Though that's the lowering springs, I'm not sure how different their coilover springs are, if they're different.

[SteelGreyM]

817.3 DSC module— the zcp/csl module. More track focused/racey ABS and allows separate buttons for DSC and M track mode (so I can quickly turn off dsc again).

That’s a thing?! So what buttons will you be using now to activate/deactivate those?

[Obioban]

That’s a thing?! So what buttons will you be using now to activate/deactivate those?

I have an e39 washer stalk installed that has an “S” button on the end (where the BC button is on the turn signal stalk). On the e39 it’s used for high intensity wash. I’ll be using it for M Track Mode.

[SteelGreyM]

I have an e39 washer stalk installed that has an “S” button on the end (where the BC button is on the turn signal stalk). On the e39 it’s used for high intensity wash. I’ll be using it for M Track Mode.

Is that easy to code?

[maupineda]

I have an e39 washer stalk installed that has an “S” button on the end (where the BC button is on the turn signal stalk). On the e39 it’s used for high intensity wash. I’ll be using it for M Track Mode.

This will be very cool!!! Wiring required?

[heinzboehmer]

817.3 DSC module— the zcp/csl module. More track focused/racey ABS and allows separate buttons for DSC and M track mode (so I can quickly turn off dsc again).

Isn't this version of the module also flashable with some"race" firmware? I remember reading something like that on some Porsche forum. Or maybe the "race" firmware is really just the ZCP ABS.

[Obioban]

Is that easy to code?

No coding needed-- it's what the module expects, as it's what the steering wheel button on the ZCP/CSL does. I just don't want to do that, as I very much like having the steering wheel controls.

This will be very cool!!! Wiring required?

You need to run one wire from the stalk to the mk60. It just needs a momentary ground— which is what this switch provides.

Isn't this version of the module also flashable with some"race" firmware? I remember reading something like that on some Porsche forum. Or maybe the "race" firmware is really just the ZCP ABS.

The 813.3 and 817.3 DSC (this one) modules can be flashed with the Motorsport software— which was BMW’s race car ABS. But, you lose all DSC doing so, and my car sees (lots of) street use— so I won’t be doing that.

[heinzboehmer]

The 813.3 and 817.3 DSC (this one) modules can be flashed with the MotorSport software— which was BMW’s race car abs. But, you lose all DSC doing so, and my car sees (lots of) street use— so I won’t be doing that.

Cool yeah that's what I thought. Any idea on the complexity of the coding? Might be fun to experiment with and without on track if flashing the thing is easy enough.

[Obioban]

I've been looking for this part for a while. I actually installed and wired in the switch back when I was doing my weight saving stereo project.

photo I took in July 2018:



And from the day I installed the seats:



And when I swapped to a full alcantara steering wheel you can just see it peaking out from behind: