Autox only.

 

drag/track/autox

 

im going to try it for myself, used car dealership im going to visit on weds has both a 07 and a 05. I am going to try both of them back to back and see if i can feel a difference with the DBW / cable.

Will report back after I try both

 

My 2006 is a race car so track only.

 

well, Im new to s2k.. my one is 2008 AP2 body look but AP1 Engine (2.0L) they came out like that in europe. i need to know is it drive-by-wire or throttle cable to order my Password JDM intake ? Any one can tell me how can i check that ?

 

Look at the throttle body. If you see cables going to it, and you can turn the metal thing for lack of better word and rev the engine.
On DBW cars you won't be able to

 

Conclusions from posts so far:

- on street, most can't tell the difference, but then most street comparisons aren't back-to-back

- in competition use, many do notice a difference, and many of these comparisons are back-to-back, but still most say its not really a big deal

- there seems to be some thought the difference in throttle response between the 2 is due more to the heavier flywheel, not so much the dbw

My own personal experience, my '06 dbw seems to have very good throttle response on the street. I attribute that to the added low end torque. This may also help explain the difference between street and competition experiences. On street, you spend most of the time below vtec, where the dbw cars have a torque advantage (over the ap1's with the original 2.0). On the track you spend a lot more of the time above vtec, where the larger engine (than the older ap1's) doesn't have as much effect.

I wonder what we'd find if we could get track experiences back-to-back with a dbw car with an ap1 flywheel, compared to a cable throttle ap1?

 

It depends on how sensitive you are. There's a lot of feedback you'll get through the pedal of an <06 car that you just don't get with DBW. The delay of a DBW car can be worked out with tuning and I've driven a tuned DBW and I didn't detect any immediately noticeable delay between giving it gas and actual acceleration. My preference lies with having a throttle cable, but it's always going to be a matter of personal preference and what your goals are if you're modifying the car.

As an aside, in regards to the CDV and heavier flywheel, I've never noticed the CDV in my car, but I haven't checked to see if it's intact either. The flywheel weight difference isn't going to be all that significant, especially if you aren't lightening the rotating mass of the engine. The only big difference I've ever noticed from a lightened flywheel is the need to give it more gas when starting from a stop.

 

You bumped a five year old thread to ask how you know if you have dbw or not so you can order an aftermarket part.

Well, if you don't get your answer here, try posting (a new thread) in Under the Hood or perhaps in your regional forum.

Best wishes and welcome to S2KI.

 

Since no one brought this up I will...DBW gives YOU, the end user, the ability to change the way the throttle behaves with the click of a mouse. If your purchase a Hondata FlashPro the throttle map is a 3D editable table that will control the throttle plate based on pedal position and RPM. This means you can make the throttle response very sharp (to the point the car is nearly undriveable) or go to the opposite end of the spectrum and make it totally laggy and unresponsive. The stock calibration on the S2000 that Hondata provides has a 1:1 position vs plate ratio, ie. you command 50% throttle with the pedal and you get 50% throttle on the plate which makes the DBW and non DBW cars feel nearly identical. The Civic Si factory throttle map on the other hand is a disaster, the response is very muted and delayed, almost undriveable (for me), it drives nothing like a car with a throttle cable. Simply changing the throttle map makes a HUGE difference!

Another benefit of DBW is the lack of an idle control valve. The throttle controls the idle speed so there is no need for it and no chance of it failing or becoming dirty with build-up.

I used to be strongly against DBW, however, as long as it is mapped correctly or the end user and some way of controlling it, (Sport/Race mode button, or reprogramming it via reflash) it really is the better option. All that being said, you miss the slight vibrations and "mechanical feel" of actually opening the throttle with your right foot.