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Old 02-26-2003, 02:29 AM   #1
shoracer
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Default DBW ? for Shirokuma

Unless I read a post wrong you said you drove a USDM STi. If so I was wondering what effect the DBW wire system had on the feel of the car, turbo lag(if any ), tail braking, brake boosting, rev matching, and toe-heel shifting. Also in the new page of pics of the USDM STi it looked like it had a throttle cable, but I believe I am wrong. Do we have so sort of launch control built in like the 2003 WRX so we can't just drop the clutch at a high rpm? If we do is it part of the DBW system or is it built into the the clutch release assembly? And, last but not least is there a CAT before the turbo(oh and what size turbo)?
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Old 02-26-2003, 02:55 AM   #2
shirokuma
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No, I've not driven the USDM STi - just know somebody that has.

The only DBW Subaru I've driven so far is the Forester, and it didn't feel bad - for a 2.0 NA with automatic. So not much I could infer from that. However, the reports don't point towards any gross differences between the DBW and standard throttle system (so far...).

I have no idea about the clutch system control, as per the WRX, but I wouldn't be overly surprised at it. I sort of doubt they will do that, though.

And as far as I've been told, the cat before the turbo has been removed from all turbo Subaru's, which means the upcoming WRX as well as the STi, and the Forester Turbo.

Cheers,

Paul Hansen
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Old 02-26-2003, 03:44 AM   #3
shoracer
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Thanks for the reply.
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Old 02-26-2003, 03:48 AM   #4
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Quote:
Do we have so sort of launch control built in like the 2003 WRX so we can't just drop the clutch at a high rpm?
Actually it is a delay valve which slows how fast you can release the clutch.

All MY03 onwards WRXs have it. I expect that both the MY04 WRX and STi will have it.

Glenn
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Old 02-26-2003, 05:36 PM   #5
gtguy
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Quote:
Originally posted by shirokuma
No, I've not driven the USDM STi - just know somebody that has.

Cheers,

Paul Hansen
Did I miss something Paul? What were that person's impressions of the USDM-spec STi?

Kevin
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Old 02-26-2003, 06:17 PM   #6
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Sounds very promising. Read here: http://forums.nasioc.com/forums/show...hreadid=315699

TRS
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Old 02-26-2003, 07:35 PM   #7
shirokuma
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Quote:
Originally posted by gtguy

Did I miss something Paul? What were that person's impressions of the USDM-spec STi?
It made the Spec C JDM version feel a bit laggy and slow (in a very relative sense).

Cheers,

Paul Hansen

ps. yes, there's more, but it's also a test mule, and some things are sure to be changed by production. That doesn't mean he had anything at all negative to say about (very much the opposite), but some things should be improved by they time it hits production.
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Old 02-26-2003, 11:24 PM   #8
m ben
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I've ridden in one of the US test mules.

it is an extremely quick car. there is nothing in the clutch that I could feel that would restrict the ability to launch the car quite rapidly based on the way it felt on the ride I took. it launched quite smartly.

the car is drive-by-wire, just like everyone who has seen the car up close at the auto shows has stated, nothing new there.

no I won't say more. yes there are a few things on the car which still have to be tweaked, but it's bloody quick the way it is now & an un-matched overall package.




Ben
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Old 02-26-2003, 11:30 PM   #9
shirokuma
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Ah, I've been reminded by my tech editor that I have driven a DBW turbo Forester - the one I wrote the article about.

So I can say right now that if the DBW is the same on the STi, there are no worries to be had towards heel/toe, left-foot braking and response in general.

Cheers,

Paul Hansen
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