1.
Ok guys I bought the new Civic Si. Great looks, Great interior, considerable horsepower, yada yada yada. I am reading on other forums that the new transmission(under 5k miles) to most feels very notchy and not smooth like a new car should be. Kinda like it does not have enough lubricant in it or something. I am experiencing this problem too and it drives me crazy. It almost feels like I am damaging the transmission during normal shifting.

[b]2.
What I didn't read anywhere was the time delayed shifting. This is what I want to know if anyone else is experiencing. I know the manufacturers designed the car to lift the rpms a little bit and hold them there for a second when shifting(for old people? I think it sucks). Apparently it is supposed to make shifting easier and cause less damage to the clutch. However I think you look stupid when you push your clutch in at lower rpms to shift gears and it seems to others that you haven't taken your foot off the gas yet. <u>But hear is what I want to know. Has anyone else redlined their second or third gear(anywhere between 7,500 and 8,000 rpms) and tried to quickshift into the next gear and the car sits still for a second after letting the clutch out? Everytime I try to race and I shift fast at redline there is a delay after shifting that is driving me crazy. I have a B16a CRX that I redline at 8200 rpms and quick shift all the time and it just goes, no delay. Wtf is going on here? Is the clutch still too new to do a "performance" shift? I mean if I am loosing a half second on every shift that would kill my quarter mile time. WTF?

 

its called drive by wire

search the forums there have been about 1 billion mentions of it

 

Thank you.......

 

Ok, in 2 pages I have found no topic on these forums about it. Could you possibly post a link instead of calling me stupid? My real question is whether or not it corrects itself later or if I am always going to have a second delay after full acceleration shifting?

 

Acutally you will learn to adapt to it. Keep driving it and playing around with your clutch when shifting. I found with the clutch slightly left in after engaging in the next gear there is no delay. But yah it is called Drive By Wire.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxattack &raquo;</TD></TR><TR><TD CLASS="quote">Ok, in 2 pages I have found no topic on these forums about it. Could you possibly post a link instead of calling me stupid? My real question is whether or not it corrects itself later or if I am always going to have a second delay after full acceleration shifting?</TD></TR></TABLE>

1. i didnt call you stupid, i said to search
2. The threads on it have been purged due to date

3. http://en.wikipedia.org/wiki/Drive_by_wire

 

I thought the drive by wire was just the throttle system, didnt think it had anything to dowith the transmission... but i suppose that could be the delay hes talking about. I don't really notice it.

 

tranny =

https://honda-tech.com/zerothread?id=1573570

 

I know some cars have something in the clutch line that will only let the clutch release but so fast. It's like a restrictor of sorts, takes the line going to the slave cylinder and restricts it to a damn near pinhole size. M3 is a perfect example of this, increases drivability but decreases performance and control.

 

Thank you for the replies guys. Type X I am sorry for implying that you were calling me stupid. I guess I will just burn the clutch a little more during high rpm shifting which is what I was trying to avoid.

 

yep..the DBW...youll get used to it eventually. Everyone is hoping that Hondata will have something to minimize this a good bit. Im also hoping that Kpro can work a little magic on the DBW..i guess ill jsut wait and see. But if not, ill survive.

 

I'm guessing a big part of the reason for the revs "floating" is better emissions. With a standard cable throttle, the throttle slams closed when the driver takes his foot off the pedal. Unless the ECU can react really quickly, the engine will go rich because no air's getting in (throttle's closed), but the ECU is still providing fuel. That's bad for emissions because the unburned fuel exits into the exhaust.

With DBW, the ECU can control what the throttle's doing. When the driver closes the throttle, the ECU sees it and keeps the revs up until fuel can match. This allows the ECU to accurately burn all remaining fuel as the throttle closes.

Yeah... it might feel weird, but if it allows the car to meet emissions standards, it's not bad. Without some tradeoffs like this, an engine like the K20Z3 might not be in the US at all.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yobtah &raquo;</TD></TR><TR><TD CLASS="quote">I'm guessing a big part of the reason for the revs "floating" is better emissions. With a standard cable throttle, the throttle slams closed when the driver takes his foot off the pedal. Unless the ECU can react really quickly, the engine will go rich because no air's getting in (throttle's closed), but the ECU is still providing fuel. That's bad for emissions because the unburned fuel exits into the exhaust.

With DBW, the ECU can control what the throttle's doing. When the driver closes the throttle, the ECU sees it and keeps the revs up until fuel can match. This allows the ECU to accurately burn all remaining fuel as the throttle closes.

Yeah... it might feel weird, but if it allows the car to meet emissions standards, it's not bad. Without some tradeoffs like this, an engine like the K20Z3 might not be in the US at all.</TD></TR></TABLE>

right on the dot. or from my knowledge it is. mainly to help with emmissions.

It is very breif, and slighty noticable. I got use to it fairly quickly. The 350z on the other hand is a different story.

 

Well I dont know what you call slightly noticeable, but I have driven other DbW cars and this is the first to do so. ITs incredibly annoying.

And BTW, the only way to prevent that "pause or lag" between quick shifts, is to flat shift.

 

it's probably the way u drive, and the drive by wire, just see if u can play around with the clutch and shifting to time it right, my civic doesn't have any problems shifting i get them in quick and they go

 

Well, slipping the clutch dramatically reduces the life of the clutch. I would've just preferred if they kept the revs during quick shifts only.

 

u probably screwed up ur tranny, and u beat the mess outta ur engine, cause my si is find

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaSivik &raquo;</TD></TR><TR><TD CLASS="quote">u probably screwed up ur tranny, and u beat the mess outta ur engine, cause my si is find </TD></TR></TABLE>

Engwish?

 

I have noticed no lag problems at all......