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Old 04-11-2003, 01:44 AM   #1
Devlin
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Default Has anybody driven a JDM STi8 w/o DCCD?

DCCD is an option in Japan. And it seems that we get it in Europe too. But we need to wait until the end of the year. The question is whether it is worth to wait that long. I can have an STi8 w/o DCCD right now.

Therefore, I would like to know whether anybody has driven the JDM STi8 w/o DCCD and can directly compare it with the JDM STi8 with DCCD. Is the version w/o DCCD terribly bad?

EDITED:

Paul Hansen writes:

"Somewhere along the line, Subaru Technica International turned up the heat and rethought the entire suspension setup, the result being inspired tweaking that very nearly addresses any possible gripe towards it's handling. Revised suspension mount points, well-sorted stabilizer bars with beefier rear links, and overall balancing have brewed up a track-eating monster."

"The feel of the car has gone under the knife, emerging anew as a vehicle more akin to the earlier first generation WRX STi's. Gone is that top-heavy feel, with the heft magically moved farther down into the car to somewhere around your hips."

Do these statements also apply to the JDM STi8 w/o DCCD?


Thanks for any help,

Devlin
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Last edited by Devlin; 04-11-2003 at 01:49 AM.
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Old 04-11-2003, 06:38 AM   #2
shirokuma
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Default Re: Has anybody driven a JDM STi8 w/o DCCD?

Quote:
Originally posted by Devlin

Do these statements also apply to the JDM STi8 w/o DCCD?
Yep.

Cheers,

Paul Hansen
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Old 04-11-2003, 12:33 PM   #3
Janq
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Hi Paul,

In your experience/opinion how 'intelligent' is the STi DCCD system software?

Is it tuned to be reactive in function like that of the Audi Quattro and Porsche traction management system (C4) or more semi-active/active lsuch as BMW's DSC system and the Porsche Cayenne traction management software?

Thanks!

- Janq
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Old 04-11-2003, 03:02 PM   #4
Devlin
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@Paul Thank you!
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Old 04-11-2003, 07:46 PM   #5
shirokuma
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Quote:
Originally posted by Janq
Hi Paul,
In your experience/opinion how 'intelligent' is the STi DCCD system software?
I don't know if I'd define it as intelligent, per se. That's probably why I like it so much, because it doesn't get hyperactive about interfering with your driving. While in automatic mode, it does indeed try to tidy up your line, but not in an overly intrusive manner. Which, as far as my driving impression went, meant that it worked with me instead of against me in 100% of the time I was with it.

I'll get a more technical answer sometime next week while I think it over and research that aspect a bit.

Cheers,

Paul Hansen
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Old 04-13-2003, 11:36 PM   #6
Bolster
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Any idea how it functions if it is not turned on (i.e. Unplugged)?
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Old 04-14-2003, 12:23 AM   #7
shirokuma
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I don't think you can really unplug it - or would have any reason to do so.

Cheers,

Paul Hansen
www.apexjapan.com
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Old 04-14-2003, 12:30 AM   #8
ha-evolution
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Setting DCCD at 50/50 would be sort of like unplugging it, wouldn't it? That is if 50% is even within the manual setting range.
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Old 04-14-2003, 11:01 PM   #9
akoshy
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Thumbs up

I think varying the front/rear split is basically adjusting the pitch of the underlying planetary gear, by means of the knob. Thus I don't think you can "unplug" anything. It is an electro-mechanical system underneath.
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Old 04-14-2003, 11:52 PM   #10
Janq
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Quote:
Originally posted by akoshy
I think varying the front/rear split is basically adjusting the pitch of the underlying planetary gear, by means of the knob. Thus I don't think you can "unplug" anything. It is an electro-mechanical system underneath.
How about locating the DCCD fuse and/or power wire and diabling the electronic 'brain' aka 'control unit' entirely using a plunger or break type switch. There is a simlar switch at the e-brake for unlocking (disabling) the DCCD.
It has been reported that when the stock e-brake switch is actuated (closed contact position) the diff unlocks and acts as an open diff allowing the front & rear axles to rotate independently.

One potential option is to locate a small pressure switch at the dead pedal that could be left foot actuated.

or...

Another idea is to source a flat tactile pressure switch such as those used on firearms to actuate under barrel light sources.
One could mount the switch at the top or back side of the shift knob or steering wheel rim.
All wiring would be routed using thin & flat wires down the back side of the shifter stick to the inside of the boot or into the inside of the steering column covering.

Either way one could enable and disable the DCCD function at will without having to remove their hands from the steering wheel or eyes from the road.

Easy, quick, effective, and ghetto...a McGyver!

- Janq
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Old 04-15-2003, 09:58 AM   #11
RafalW
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Quote:
Originally posted by Janq


How about locating the DCCD fuse and/or power wire and diabling the electronic 'brain'....................
It's quite amusing what you plan.
The dial has an auto setting and manual from full lock to full open. What you want to disable here?
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Old 04-15-2003, 11:19 AM   #12
strangerq
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Quote:
Originally posted by RafalW

It's quite amusing what you plan.
The dial has an auto setting and manual from full lock to full open. What you want to disable here?
Exactly, DCCD is sort of confusing isn't it.

It's a driver controlled adjustable differential with an auto setting and a manual setting.

The only thing you'd ever want to disable would be the auto setting whereby the computer determines and presumably varies the torque split.

By setting it to manual and picking your own torque split you accomplish that.

Can't see want else/more you would be trying to accomplish with "disable".
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Old 04-15-2003, 11:37 AM   #13
Janq
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Quote:
Originally posted by RafalW

It's quite amusing what you plan.
The dial has an auto setting and manual from full lock to full open. What you want to disable here?
I personally have no interest in doing this on my own vehcile.
My response was a follow on to 'akoshy' toward the query from 'ha-evolution' prior.
Read two posts forward of my response...

I know about the dial and its range of setting though I'm not sure about '"full open" being an available option outside of the e-brake switch.

- Janq

"I'm hooked on phonics and I'm learning to read!"
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