joedokes

Tonight I was close to redline (6800 - 7000) in 3rd and I accidently dropped it into 2nd, I was still letting the clutch out when I realized what I had done. My revs jumped to around 8000 for an instant before I got the clutch back in.
everything sounds fine and idle is still smooth, what should I watch for if there were to be any problems?
Thanks in advance.

PixelHarmony

Whoooa 8000? I'm sure you're fine. Your engine didn't blow up and it was only for a second. 3rd to 2nd? That's a odd misshift

TSX 3Pedal

That's not an odd misshift because he was going to go into 4th but instead pulled the sifter a little to the left...

sauceman

Yep, it's almost a classic...

https://acurazine.com/forums/showthread.php?t=10941

RMATIC09

I doubt there's going to be any issue, i woudlent worry about it.

RMATIC09

Also, i just dont understand why problens shoud occur, if one tends to hit 8500 persay? LIke if there were to be problems, what would happen?

sauceman

Could be valve float, causing valves to hit pistons, or just the bottom end plain and simply breaking apart, which is a definite risk on the TSX because of the long stroke and the relatively bad R/S ratio.

RMATIC09

So what happens when they dyno cars? Looking at clips, sure as hell looks like the car is being redlined?

fdl

redline is not a problem, but 8000 or 8500 is well past redline.

joedokes

My friends and I had been doing some really spirited driving up a mountain with probably 20 turns in 2 miles which includes 2 switchbacks that are nearly 180 degrees, so during this part of the road I was doing quite a few downshifts from 3rd to 2nd as I was braking. After you come out of the curves there is a long straightaway uphill and this is where I misshifted. I know that it was just a short amount of time from when I started to let the clutch out and realized what I had done but in that instant you get the worst feeling in your stomache.

iamhomin

Sauce's lived through it, I'm sure yours will too.

iamhomin, who has heard bs stories about a person's transmission falling out by mis-shifting from 5th to reverse.

97AcuraCL

it'll be on the car's engine codes and when u take it in for service for any kinda warranty repair they will tell you to go fuck urself because you 'over-rev'ed the engine...

at least thats what they did to me before i went to another dealer who checked the car free of charge and said that everything was good to go

K24s rule, built like a rock... thats what Honda motors are made for; I'm sure yours is fine... just heads up for the bullshit u may have to deal with at the dealer.

97AcuraCL

https://acurazine.com/forums/showthread.php?t=12848

stuckthrotle

worst that can happen is you lock up youre wheels and spin out of control and your tsx explodes into a ball of flames killing you in a horrble firey death.

sipark

Oh, really?...

sauceman

How's that for an ending.

SWRT

Really... 8500.. even 9000RPM for a very brief period of time won't hurt much. The 'classic' mis-shift at its worst hits about 11,000RPM (thats redline 3rd into 2nd). At about 9500RPM, even for a breif instant, the valve spring retainers shear and the valve drops into the combustion chamber.

If it goes... it goes big... there isn't really much in between.

-SWRT

Colin

Unofficially, a F20C is good for over 10,000 -11,000 RPM for a brief moment before really bad things happen. Having said that, I wouldn't go hunting for situations to exceed the redline by 1000 rpm. The K24 has a longer stroke and heavier flywheel (feels this way anyway) and I suspect that this helps in situations like yours. Frankly, it doesn't spin up as quickly as a K20A or F20C and this probably saved you from serious damage.

dnb

Absolutely.

This is why there's a dwindling market for MTs. All those misshifting drivers end up in fireballs.

sauceman

I guess mine was a close call.

handydandy

i know that mis-shifting can be bad for the engine if you moneyshift, but what about the tranny? does mis-shifting abuse the tranny alot?