Possiblity damaged engine due to Over revved

[blackdc2r]

Hi guys I was driving my dc2r on freeway few days ago and i was stupid enough to downshift(going approximately 80-90km/h) to 2nd gear while I was on 3rd gear and the engine rev up to 9k Rpm and now I'm paranoid that my engine is stuffed now.

The engine RPM only reached to my rev limiter(up to 9k Rpm) and As soon as I hit 2nd gear i quickly changed it back to 3rd and now Im scared I've damaged my valve springs or so. After this incident, I've havnt heard any strange sound but what possibilities of damages to the engine I have done?

[curtis265]

if it runs fine without weird sounds then it probably is fine. Just watch the basics like your oil and fuel consumption.

[JayTea18]

As long you have sufficent amount of oil in the engine you should be fine.

Its a honda - the power of dreams

[jdm18c]

Lol come on man it will be fine...see how it idles ect and check the oil

[trism]

chill out alright.

Its probably fine. If it was stuffed you'd know it by now.

[blackdc2r]

cheers for the replies everybody. Sorry Im just very paranoid. But lets say if I downshifted and it over revved to 10k then that's when its a big concern right? Sorry its a first time experience and I'm a car noob ><

[blackdc2r]

As long you have sufficent amount of oil in the engine you should be fine.

Its a honda - the power of dreams

yeah oil is right on the upper dot level

[Indie]

If it's still driving, it's fine. At least you'll be more careful when downshifting now.

[Mikecivic78]

Hi guys I was driving my dc2r on freeway few days ago and i was stupid enough to downshift(going approximately 80-90km/h) to 2nd gear while I was on 3rd gear and the engine rev up to 9k Rpm and now I'm paranoid that my engine is stuffed now.

The engine RPM only reached to my rev limiter(up to 9k Rpm) and As soon as I hit 2nd gear i quickly changed it back to 3rd and now Im scared I've damaged my valve springs or so. After this incident, I've havnt heard any strange sound but what possibilities of damages to the engine I have done?

Seriously, hold your horses cowboy.

Just act as if nothing happened. You can't turn back time. Any damage done was minimal, as you shifted up. I even did this once when I had a b-series.

Your car will be fine. Maybe change the oil if you are paranoid.

take a stress pill and relax.

[Indie]

Seriously, hold your horses cowboy.

Just act as if nothing happened. You can't turn back time. Any damage done was minimal, as you shifted up. I even did this once when I had a b-series.

Your car will be fine. Maybe change the oil if you are paranoid.

take a stress pill and relax.He shifted down, though.

[Mikecivic78]

Im trying to know why you are so stressed.

maybe you read about how the last generation Celica engines (1.8- 141kw) would pretty much blow up if you did that... apparently the oil pump would disintegrate

[void-]

sounds like your engine is ****ed, it will die a slow death, good one fgt.

[EKVTIR-T]

Perhaps he's not mechanically savvy and treasures his type r.Cant blame him for being a bit nervous.

I dont see that a momentary 9k hit will do anything bad.Its not far from the engines safe range anyway

[TypeS]

If you really did over rev, there is a good chance you have cracked your valve retainer(s).

Of course everything will be fine for now, until the retainer(s) fails one day and the valve falls....

If you're really worried check your retainers (especially bottom side up) and get a compression test.

[blackdc2r]

Im trying to know why you are so stressed.

maybe you read about how the last generation Celica engines (1.8- 141kw) would pretty much blow up if you did that... apparently the oil pump would disintegrate

Im not stressed out anymore, but as I said, its a first time this has occurred. Hence, why I'm paranoid, but at least I learned my lesson not to do stupid mistakes!!

[slingsy]

The fuel cut would have saved you in this situation, you're lucky it wasn't something as foolish as a 5th to 2nd downshift..
If were fast enough to put the clutch in I'd say don't even worry about it. Also since a dc2r has to be put into third before you hit 100 its not that far a step down into high rpm 2nd so there isn't a great amount of load on the motor..

Edit - (assuming you didn't heel toe) WHY were you watching the rpm while your car violently jerked and slowed?

[JayTea18]

yeah oil is right on the upper dot level


Like everyone said . Your a Ok.

-Also like you said your oil is on top meaning theres no oil starvation.
Which is a plus.

Just take this as a lesson learnt . We all learn something new everyday.

[blackdc2r]

The fuel cut would have saved you in this situation, you're lucky it wasn't something as foolish as a 5th to 2nd downshift..
If were fast enough to put the clutch in I'd say don't even worry about it. Also since a dc2r has to be put into third before you hit 100 its not that far a step down into high rpm 2nd so there isn't a great amount of load on the motor..

Edit - (assuming you didn't heel toe) WHY were you watching the rpm while your car violently jerked and slowed?

yeah well the situation occurred for say 0.5seconds-1second then i straight away shifted back to third. Well as silly as I can get, I watched my Rpm cause I wanted to check where did the engine revved up to, and also cause there were no cars on the road.

[ek4-guy]

dude i use to bounce off my rev limiter all day every day with no oil showing on the dipstick

took a good hammering like that for about 12 months before it spun a bearing

[ceekay101]

aslong as the belt didnt skip a tooth it should be a ok. not saying you should excessively do it, but if timing is right then valves will clear pistons and no immediate damage should occur such as pistons smashing into valves.

[CRXDEL501]

dude i use to bounce off my rev limiter all day every day with no oil showing on the dipstick

took a good hammering like that for about 12 months before it spun a bearing

I can confirm this hahahahaha

[EG52NV]

I thought top speed for 2nd gear was like 100km/h? 3rd to 2nd down shift at 80 or 90kms per hr should not cause car to spin at 9000rpm range...

[Jccck]

I did this once, and my Distributor Rotor disintergated.
That was a fun night!

[khanguskhan]

Nah standard dc2 2nd gear goes up to about 90 by the redline. He was probably around the 100 mark when shifting down.

[slingsy]

I thought top speed for 2nd gear was like 100km/h? 3rd to 2nd down shift at 80 or 90kms per hr should not cause car to spin at 9000rpm range...

yea as above and what I said needs to be put into third before you can hit 100..

[Super-DA9]

tuners etc, usually rev it till the limiter kicks in on dyno runs, so hitting the limiter for a split second on a downshift shouldn't worry it. especially considering this is hondas hand built type R engine we're talking about here.

[ek4-guy]

seriously are you guys soft i hit the limiter every time i drive ffs i will go start it now and bounce it off the limiter for 10 seconds just cause i can

[CRXDEL501]

Bro sell the car I think the engine is stuffed ay.
Type r's can't handle that abuse

[DC2-PWR]

B18C5 from the US (http://www.team-integra.net/forum/11-generation-three/63996-what-happens-when-you-overrev.html) that revved to 9k
http://img.photobucket.com/albums/v391/GSR_J/1.jpg
http://img.photobucket.com/albums/v391/GSR_J/2.jpg
http://img.photobucket.com/albums/v391/GSR_J/3.jpg
http://img.photobucket.com/albums/v391/GSR_J/4.jpg
http://img.photobucket.com/albums/v391/GSR_J/5.jpg
http://img.photobucket.com/albums/v391/GSR_J/6.jpg

They also mention that the stock fuel cut is at 9500RPM. Intresting

[CRXDEL501]

Ps inb4 sarcasm

[trism]

That's a result of valve float due to valve springs.

A lite back story might be nice because you don't mention if its stock or what.

[DC2-PWR]

That's a result of valve float due to valve springs.

A lite back story might be nice because you don't mention if its stock or what.

As per what others have said on that thread. Yeah a back story would've been nice

[grifty]

There shouldn't be anything wrong with the car. I'm sure loads of track orientated DC2R's take more abuse than that going through the gears. As long as you didn't accidently change from any gear to reverse whilst you were moving, the car should be fine.

Its not possible to engage reverse while driving, you will just grind the sh!t outta the gear.

[curtis265]

Its not possible to engage reverse while driving, you will just grind the sh!t outta the gear.

challegne accepted.. lol

[Super-DA9]

Holy F*CK that b18C5!

although it isnt standard, it has flat face valves so it may have high lift cams and some pretty gnarly timing too. they get up to some pretty highly strung setups in the US.

[DarkAgent]

You should do it again, if nothing happens the second time then you're all good.

[Super-DA9]

Actually that b18c5 damage couldve been valve float caused by boost on stock valve springs. On hondatech there are threads about high boost pressure holding the valves open for too long.

[amant02]

I have done this a few times on purpose on a b16a2 still worked fine till the day i sold it.

[curtis265]

glad i didn't buy ur car

[EG52NV]

I have done this a few times on purpose on a b16a2 still worked fine till the day i sold it.

Did you sell the car 2 days later? Lol

[SHOGUNOVDDRK]

The above are retarded, truly.

They do not represent the spam community either.

Honda is BUILT from FACTORY to REV!

The stock limiter is there to keep the engine safe, you didn't hit fuel cut I take it?

ek4-guy is vouched for here.

[GSi_PSi]

Dude i took my b20vtec which as known as a weak bastard motor to 9800rpm once testing out to see if it had the limiter working.... it didnt lol
was perfectly fine and pulled 125kw atw straight after on the dyno lol

[grifty]

I also take my JDM d15b to 9000rpm, still purrs like a kitten.

[GSi_PSi]

thats weak dude , jdm d15b can go to 11,000rpm

http://www.youtube.com/watch?v=9GsgwQpj57c

[Super-DA9]

fk yeah! initial D!

[4age8u]

I once hit 13k on my d15b4 non vtacs the power when yOur dreaming

[manolii]

I have done this in my mums corolla wen i was on my L's execpt i didnt change up straight away lol it kept bouncing off the rev limiter and the car still works. But as everyone said the type r is made to hit the rev limiter, you shouldnt worry.

[CRXDEL501]

Then again I know someone that missed a gear when downshifting on highway somehow revved the dc5r to 11k and blew the engine

But then again, some people are rookies

[Jccck]

Then again I know someone that missed a gear when downshifting on highway somehow revved the dc5r to 11k and blew the engine

But then again, some people are rookies

I remember seeing a video of Youtube of some clown in an Integra drag racing, then missing third and blowing his Motor.. Lol

Well hopefully we all learnt something from this thread;
Yes, your D-Series can rev all the way back 'round to 0 RPM.
But it's probably not the smartest idea lol.

[CRXDEL501]

I've learnt some people are ritards lol

[trism]

I've learnt some people are ritards lol

Especially those who can't spell retards.

[CRXDEL501]

Especially those who can't spell retards.

Have you not seen the hangover?

Obviously was a joke you didn't get

[trism]

Yeah I know the joke.

But when people try to spell it out it just doesn't work.

If anything it'd be R'tard.

[CRXDEL501]

Yeah I know the joke.

But when people try to spell it out it just doesn't work.

If anything it'd be R'tard.

Haha thank god

[amant02]

J turns buddy!

PS only did this cos i had a b18 gearbox kept falling out of power range around corners

And i drove the car till 152xxxKms, i still see the car around and its still driving fine.

Im not too sure about this i dont think my internals were stock.

[Indie]

Threads like this really grind my gears, y'know.

>_>

[Super-DA9]

Threads like this really grind my gears, y'know.

>_>

I see what you did there...

[curtis265]

http://1.bp.blogspot.com/__H3iHjLg-T0/SgDNuosM6TI/AAAAAAAAACA/Tx-ps6JdPtc/S1600-R/gears2.jpg

[Super-DA9]

^^ lol