Is it just me, or does the Fit's 1.5L/6MT combo produce a surprisingly miniscule amount of rev hang? Coming from a 2012 Focus 5MT, it's made driving so much more spirited and interesting. In the Focus, shifting quickly was harshly punished since the RPM would drop veeerryyy sloowwwwly when pressing the clutch pedal, so there'd be a very unpleasant lurching if you didn't wait what felt like forever for the revs to creep down for the next gear.

By comparison, the Fit's revs seem to drop nearly instantaneously (and quickly!) when pressing the clutch pedal. It's great, and I just want to see if the rev hang really is nearly non-existent or if it's just lightning-fast compared to the sluggishness of the Focus.

 

I've noticed this as well! The 6MT Fit is my first manual transmission car and I have found it really easy to downshift. Even going through each gear the RPM's drop quickly enough to stop. IF I even have to press the break pedal I only have to around 30km/h or lower.

I LOVE this car and the 6MT!

 

Am experiencing exactly opposite of whast you are describing but only when pushing the RPM's above 5k. At high RPM's it feels like there is a delay in RPM drop after the clutch is engaged. I know I read some posts about this but can't remember which thread.

Are you pushing the RPM's and still experiencing such fast response??

 

When I shift under normal driving conditions, i do notice that the rpms drop fairly quickly which make shifting a little jerky as the trans needs to speed up to match the engine speed when the clutch engages. But when i do shift above 4k, the rpms do hang and for a bit longer making shifts smoother.

 

Y'know, on my way home yesterday I did realize I wasn't revving particularly high when observing the limited hang, but didn't really have much opportunity to get it above 4k or so in neighborhoods and nasty, rainy weather. I might have to check it a bit more thoroughly with some more aggressive driving.

The Focus had bad rev hang even at low RPM, though. Still an improvement. I'll update with my findings sometime today. I get the feeling I "spoke too soon."

 

I typically shift when the RPM's reach 3500, thats my bare minimum if I'm not in a hurry, and they drop quickly.

I have only been in a few situations so far where I have had the RPM's reach 4000 or higher to accelerate quickly. I didn't pay attention to the "hang" at that point.

I will try that on the way home from work and I'll post again.

I have only had my Fit for 3 weeks, working on my 4th, and I'm only at 1300km (approx. 800miles) so I may still be in the "break in" period (if there even is one for the 2015's).

 

I've got over 4K (past "break-in") on the odometer and am starting to experiment with the performance limits without red-lining the tach. Normal driving and shifting around 3500-4000 is nice and smooth and I don't experience the rev-hang .... only when really pushing and stretching the gears. Curious to hear your observations/experience.

 

OK
So on my way home, I got the RPM's to reach 5000, and it did hang a bit. Mind you I was shifting from 2nd to 3rd and was nowhere near a highway or a faster road, so my experiment was limited to lower gears. I figure it stays that high so if you want to go from 2nd gear to 4th that extra hang gives you another half a second. ALSO say you don't have much room on the on-ramp to go through the gears it will allow you to shift from 3rd to 5th with ease.

However, I woke up this morning to go to work and drove out of my driveway without allowing the engine to really warm up, and even shifting at a normal pace(around 3500RPM) it would hang as well. But when the car warmed up I didn't notice this at all.

Every 6MT driver is different. Last night was personally the first, and one of the few times I will push the engine to 5000RPM. Depending on how you drive your 6MT, the rev hang may help if you choose to shift very quickly or go from 2nd-4th or 3rd-5th.

@cheesewhiz @CMK-

 

Did a few ~5k shifts yesterday and this morning after the "cold temp" warning light went out on the dash. Noticed very little hang. Car has fewer than 300 miles on it, so I don't want to flirt with the fuel cutoff, but my observation is that rev hang in this car is very, very miniscule.

 

CDV (Clutch Delay Valve). Lots of threads on it.

 

The clutch delay valve is unrelated to rev hang, which is where the engine computer takes its time in closing the throttle and losing power when you let off the gas (for emissions reasons). Apparently the design of the new engine makes this largely unnecessary; my guess is that direct injection allows a more rapid and certain fuel cut-off, so they don't need the rev hang.

 

Maybe, or maybe it's just Honda's implementation of DI, but the Focus 2.0 is DI as well, and it has stupid amounts of rev-hang.

Like you said, it's not the CDV. If a CDV was responsible for rev-hang, then the AP2 S2000 would have it. Which it doesn't.

 

I've noticed this too! I thought it was really weird and actually pretty annoying when I push the car cuz it seems like I'm a bad driver when I have people in the car. Even last night, I was driving some friends home (one of them is my 300+ lb roommate) and had to really wind up the engine to get going. The fricken rev hang was really annoying when shifting, and led to some slightly rough shifts. Super dumb "feature" to have. It is odd that the revs drop like a rock below that point tho. I have an 02 Mazda Protege5, and that one takes an eternity to drop to idle compared to the Fit (well, when it wants to idle haha). I feel like this is part of the character of the VTEC tho, since the engine does run through the rev range pretty quickly (in 1st gear, it goes from idle to 4k in about 2 seconds, if that).

 

Thanks for the confirmation. So it's NOT just me!
I love this little car!!!

 

More on this topic in this thread ... some of you have already posted comments here. This is where I read comments about a Clutch Delay Valve:

https://www.fitfreak.net/forums/3rd-...ml#post1279816