jimmi1977

I was driving today, this being a first real spring day here, so I wanted to have a bit of fun and I mistakenly shifted from 6th to 2nd instead of 4th (yeah, one should let the stick center first then push it down, do not force it to the left). That was around 120 km/h.

So, I release the clutch and watch my RPMs quickly getting to 8000 at which point I press it again and disengage the shifter.

Car seems to drive ok, and I believe it reached 8000rpm only for a split second. Do you think there will be any consequences?

Aside of that, I have yet to redline this car (when I "race", I never brought it above 6000 RPMs), and I wonder what will happen? Will it just cut the fuel off like my beamer did or what?

10 years of driving manual cars. I am ashamed.

LIPPSTUH

iTrader: (2)

it's okay, i'm really paranoid about shifting to 6th since i rarely go in it... i'm skared of hitting reverse!

but i have "accidentally" shifted from 4th to 2nd, but i always catch myself b/c i slowly let go to see if i'm on the correct gear. (when i was just learning stick).


^useless info to your case, sry

jimmi1977

Hmm. AFAIK reverse is physically blocked once you start rolling, so no worries here. Use 6th otherwise it's a gaz gizzler on a highway

Misshift by itself is not a problem. Misshift with RPMs above red line (which is around 7000k for CLS) is a problem.

So I am just trying to figure out what would happen on that particular car have it stayed longer on 8000RPM?

Also, what happens when you just redline it in gear (without misshifting)? I am sure many people have done this.

03sixer

You do know that at that speed you could never, ever, get it to engage into reverse anyway...not sure what you're so paranoid about. 6th is straight down from 5th. You would have to purposely try to push down, then over then down again to even get it to grind on the reverse gear.

spdy0001

You are correct, there is no way possible to hit reverse once you are rolling forward You sure better be using that 6th gear with the current gas prices

To the OP if you miss downshift and overrev you could bend valves and other things, basiclly destroying your engine. If you are still running fine at this point, likely there is no damage done.

If you go into redline while normally in gear the car will either kill the fuel or ignition. I forget which at this point, but either way it will feel like you hit a wall and you probably hear a "pop pop pop"

Also you really should take your car above 6K every once in a while, after all V-Tec doesn't even switch over till 5800. So you know it was meant to be taken much higher than that

GreenMonster

4800 rpm http://www.geocities.com/gamesmgr/chod/acura/#Engine2

spdy0001

Yes your right Its too early for me, where did my hour of sleep go haha

GreenMonster

I was going to mention that... DST kicked my ass too...

LIPPSTUH

iTrader: (2)

lol, thanks for the info... i feel like a total noob

fuzzy02CLS

iTrader: (2)

Yeah R while moving is no possible.

If the car seem ok, then your ok. The car has some give when you over rev. I'd get the ECU scanned & remove the over rev code that is stored. There's no CE light, but the code is stored anyway until cleared.

TheWeez

The engine should cut the fuel to keep from over-reving.

fuzzy02CLS

iTrader: (2)

On upshifting yes, not on a downshift.

fsttyms1

Well there is a way. If the reverse lock out solenoid were to go bad you could

jproy

Its not mechanical?

fsttyms1

It may be but it uses a solenoid and signal from the ECU to lock it out.

GreenMonster

Doing a search for reverse lockout here will turn up one of your pre-conversion info gathering threads from Sept 04 when scalbert was still around

jproy

I always assumed it was some how mechanicaly operated when you started to roll forward. I never imagined the ECU and a solinoid were in involved. Thanks for the info. I once put an auto mazda in reverse at 80 mph on the freeway by accident and nothing happend.

jimmi1977

You guys are helpful I am not worried anymore. I'll try to scan the ECU with my OBD scanner and see what it shows.

You got a nice community here. I should post more often But then again, I only had car for a couple of months during winter, so real driving hasn't started yet

grey6spd.

Check engine codes for miss-fire, if you have any but no check engine light you should be OK. Take it from experience dont tread in that redline area and miss a shift cause it will cost you around $3300. to fix. By the way any body looking for a firewall side head real cheap with a bent valve stem let me know. Been driving and racing standard shift for a few years and dont really know when it happend. By the way I was 2 months out of warranty( 25k miles) when it happend and Acura client service wouldnt even help with the parts.

fsttyms1

You know i completely forgot i ever asked you guys that back then.

(guess i proved scalbert wrong too... no bs)

Joe5.0

https://acurazine.com/forums/showthread.php?t=180325

jimmi1977

Thanks, Joe! At least 5 people have done the same in the other thread I feel completely relieved now.

For what it's worth, it seems 9000 RPM on the tachometer is probably the number engine can take for a very short periods of time (<1 sec) without serious damage.

And, 6th->4th shift gone wrong (actually engaging 2nd instead of 4th) seems to be the most common mistake. I am with the lemmings

And I am still the manual guy. Will never drive an auto again (I drove it for 1 year out of my 10 years of driving).

I had an e46 BMW, and I never actually shifted wrong there, because the shifter is pretty long-throw and forgiving. But I always wanted a short shifter there. Which makes me wonder if short shifter makes any sense for 2003 CL-S - it is already as short as it can be. Any comments here?