S2000 Talk Discussions related to the S2000, its ownership and enthusiasm for it.

Drive-by-Wire (DBW) Throttle System

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Old Aug 30, 2006 | 12:40 PM
  #21  
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Originally Posted by crex,Aug 30 2006, 08:43 AM
have any of you guys had the snap oversteer with the vsa on the 06's? I wonder if it has almost completely elliminated it.
It's kicked in for me 3 times already... twice in the wet and once on the dry.

On the dry it really saved my a$$ cause I did enter that on ramp a little too hard. If it weren't for the VSA, that guard rail would have been wearing my S2K.

Thank You VSA!!!!

Andre
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Old Aug 30, 2006 | 12:44 PM
  #22  
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If the car is doing things you are not making it do, VSA is the least of your worries. Please learn to drive.
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Old Aug 30, 2006 | 01:36 PM
  #23  
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Originally Posted by LagunaS2K,Aug 30 2006, 06:30 AM
i hate it!

response is slower, and you don't have control of the car, with VSA it cuts out throttle when you don't want it to.

it's great to simplify things but man give me a throttle cable any day and i will be a happy camper
You need to get yours fixed then, or stop confusing VSA with CDV.
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Old Aug 30, 2006 | 04:04 PM
  #24  
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on my audi 98 A4 i had DBC, then i went to a 01 S4 and that was DBW, my 01 GTi (current toy car) is also DBW

all of hte DBW cars have a lag but i am able to edit the software code in the ECU to anticipate this lag and increase response.

On my honda i have taken it back to the dealer and they looked into it. it's perfectly normal, the sales person who sold me the car allowed me to test drive a sweet NFR from their lot and it does the same exact thing.

The Off button does help some what but it's still active it's not compleatly off.

I love the car but right now i am not a fan of the DBW system.
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Old Aug 30, 2006 | 06:03 PM
  #25  
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This conversation suddenly turned into the debate about the VSA... I think the VSA is great and wish I had it on my car!!! that's what I thought the S2000 was always lacking...

What i'm complaining about is DBW... on the TT it definetly sucked.. and its not b/c someone pointed it out.. i noticed it straight off.. i'm just worried that it would be the same in the 06...

06 model (US Version):

8000rpm motor
DBW

Makes me want to buy it less and less... that's if i end up moving back to California.. right now i'm loving my 01... had a blast on Namsan last night
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Old Aug 30, 2006 | 06:35 PM
  #26  
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VSA- you can turn it off if you like. once its turned off, its off. you will burn your tires like there is no tomorrow if you like.

dbw- no delay what-so-ever. you wouldn't know it was there unless you knew.
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Old Aug 30, 2006 | 06:58 PM
  #27  
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What is the reduction in acceleration if not VSA kicking in? I assume it's shutting down throttle when it senses any wheel slip. Is this correct?

Ken
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Old Aug 30, 2006 | 07:02 PM
  #28  
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I personally don't have any experience with the DBW system. I have read some reviews of various Honda models equipped with this system and it seems that on more that one occasion a reviewer has commented that "the Drive-By-Wire system holds revs a split second longer then it should when a downshift occurs."
I even read reviewers take that said "I would have thought Honda would have been able to figure out how to smooth this out by now."

Has ne one noticed any their 06 holding revs on a downshift? If yes, was the VSA on or off?
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Old Aug 30, 2006 | 07:07 PM
  #29  
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Depends on what you mean by "holding revs". I literally just went from an 04 to an 06, and I can't feel any differene when I blip the throttle to downshift (maybe that is what you are reffering to?).


I think 99.9 % of people wouldn't feel any diff if you didn't tell them, and probably 70% of people will THINK they feel a difference once you do tell them.
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Old Aug 30, 2006 | 08:57 PM
  #30  
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You can deduce anything you want from "holding revs" here ...
This article is about the Civic Si ... it makes no mention of the S2k; however, it does mention many other honda models with dbw.

Written by Jeff Palmer for Temple of VTEC:
The K20Z3 marks the first fitment of a drive by wire throttle system to a K20 motor in the US. This was anticipated, but we were really hoping it wouldn't happen. So far, I've only met one drive by wire throttle system that didn't totally frustrate me, and that's the one found in the Acura NSX. The NSX's drive by wire throttle exhibits absolutely no lag or delay to the demands of your right foot and operates in an absolutely transparent fashion - and that's the way it ought to be. Unfortunately, this has not been the case in the TL, Accord and TSXs we've driven with drive by wire. The biggest problem I've had with the DBW system on these cars is that the lag throws the timing off when you're trying to upshift or downshift in a hurry. Unfortunately, the Si's DBW system still exhibits this annoying lag, but in the Si's case it doesn't impact the shifting quality. Unlike the Accord, TL, and TSX, the Si actually holds revs noticeably in between shifts, effectively smoothing the upshifts and avoiding the problems that are most noticeable when shifting the TSX very quickly. In other situations, the impact of the lag isn't that bad, so throttle response feels pretty good on the track. So in the end, the Si's drive by wire throttle is an improvement over previous 4 and 6-cylinder systems from Honda, but there's room for further improvement.
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