I know a thing or two about the new civic Si's
and one of the major problems they had with it was the rev hang.
It is where, when you change gears, the rev kinda just chills there for a sec, and then drops.
unlike most manual cars where when you shift the rev drops right away.

i hear that it is due to drive-by-wire.
and S2000 also has drive by wire.

Do the S2000's also have a rev hang?
or gears popping out when you shift?

 

I have never experienced either of those you mention.

 

I think the 2004 onwards S2Ks have drive by wire, if I am not mistaken. My 06 Civic Sedan has the same rev hang problem that I hate, particularly after driving the S.

 

'06 and up s2ks have drive by wire. AP2s have slight rev hang but thats because of the heavier flywheel than AP1s. It's not enough to make ya mad though. But this car has a great transmission. Don't let an almost non existant rev hang sop you from getting one.

 

Sounds like a minor problem and a relatively simple fix. By no means make that the reason for not buying an S2K. Ive had an 04 and now an 05 and have never even noticed.

 

S2K's w/DBW do not have this problem. It was a problem on the Si's not due to the DBW itself; all that was needed to fix it was an ecu reflash or something (there's a TSB out for it).

 

I have an 06 and haven't had any issues. What's the impact of this? I could see that it would make it harder to rev match upshifts, but otherwise what's it hurt?

 

the reflash did fix it, but not all the way.
even after the reflash, i hear it was noticeble
but the people who got the hondata reflash said it was fixed.

and trust me guys, a lil rev hang is not going to stop me from buying a s2k! haha, i was just asking,
its good to know all the bad stuff, rather than finding out after you buy!

i'm looking to buy a AP2, and possibly an '05

 

Well, first of all, 05 doesn't have DBW, so don't sweat it.

I have an 06 and have never noticed this problem, its my DD and track car.

 

Rev Hang = CDV