Hey guys, 1 month into owning my 5.5 gen 6 speed and I did something very STUPID. I was... lets say accelerating quickly in an effort to match the vehicle beside me... and at the top of 3rd gear (around 85 or 90mph) i went to shift into 4th and by the time that i had realized that the shift had not moved straight down but rather down and to the left my tach was burried. Now.. i figured based on the gear ratio's of the 6sp and the approx speed I was going it must have been about 8100 - 8400 RPM for maybe 2 seconds at the most. How many of you have done this?? Anyone know if this is an automatic early death sentence? Thanks

 

Didn't the rev limited cut in?

 

He down shifted into the red. There is nothing a rev limiter can do about that.

 

hmm prob not good.. you might wanna run your car a little calm for a few days.. thats honda high.. i wouldnt even wanna mess with that.. sorry man feel your pain

 

Hmm, it's not an RX-8 by chance, is it?

OK just kidding

 

2 seconds??? That's a long time to let it rev like that and not push the clutch back in. I would think you would have slammed the clutch back down just out of reflex a LOT quicker than that. But anyway, if it still runs okay, it might be fine, I don't know. A friend of mine did that a while back and it went boom as soon as he did it.

 

It probably was less then 2 seconds. When I felt the car decelerate instead of accelerate I did slam the clutch back down. It seems to be running fine still, no valve trane or other noises present. I promised myself that it will never happen again. I guess I am just looking for some people to say... yep I did that 425,000 miles ago and everything is still fine. Not counting on it though. It would also bring some some psychological as well as mechanical peace of mind.

 

yeh man that happened to me beofre like 425,000 miles ago and everything is still fine shes still running strong. hahaha

 

take it to a shop and have them look it over... my brother knew that i pushed the redline a lot in my car because of oil seeping from the spark plugs....(my old car). hitting that high of an rpm might float your valves... not good, take it somewhere tell them what happened and let them look it over, better yet, unless you know someone you can trust at a shop. take it to a few places. if there is a problem hopefully you still have a warranty and tell them you noticed it and never tell the dealer what happened!!

 

I would think it would be able to do something about 2 seconds.

 

I am starting to gather that I am the only one that has done this.

 

The only thing it can do is cut fuel or timing (I think the maximas cut fuel). The car would still have to decelerate out of the redzone. Without hitting the brakes its possible that it could take 2 sec or longer. Chances are his estimation of the time before he pushed in the clutch is off. The memory does funky things when in a panic state.

 

I did the same thing about 2 or 3 years ago, same reaction. I haven't had any problems, some 60 000KM later.

 

you're fine. don't worry about it.

 

if all is fine right now nothing will happen.


i would say it was about 2 TENTHS of a second. time seems to stand still with things like this.

 

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Yup. Mechanical over-rev. Nothing the computer can do about it.

 

i did it in my 5th gen, and i ended up breaking the cam gear. and got a new motor, haven't done it since and the new motor runs a little better too so it worked out ok, but it's not good at all on the valve train, my got to around 8500

 

is pushing redline like twice a day bad for the car.. most engines are designed to run at WOT all the time .. (jet skis, lawn mowers ect..) is it bad for our car engines to be pushed everyday?

 

what was probably most scary about the whole thing was the sound it made... kind of like a turbine about ready to explode I would imagine. Now on the second day of driving after the incident and all is normal. It was a valuable lesson though and maybe if it prevents another person from doing the same thing its worth mentioning. Does anyone know if the new/revised VQ's in the 350 and G35 with 7k redlines are running the same internals as us?

 

yeah that sound is very scary and it took my car two days to let go, the sproket had some teeth laft after i did it, but they just wore off and my car died, it really sucked, glad that yours is ok though

 

i did that in my old acura integra, but i reved to abouit 9100 rpms (redline was 8k) the engine was fine, not a tick or squeal, but the trans went and the clutch bent. that was replaced and the engine ran strong for another 30k before i sold it. if there are no audible and visible signs of "something different" than u were used to, its fine, just like someone said, take it easy for a couple days but u should be fine if nothing happened by now. something like that will usually show the damage immediately, so if its ok, then take it easy and u should be fine...
hope that helps

 

I belive redline is still 6500.. im not sure tho

 

that really sux man, i have never done that and i hope i never ever will.
I would prob **** myself if i every did something like that.

 

If something bad were to come of it, you'd know pretty quick.

I knew someone that mechanically over-revved a BMW M3, same shift (3-2) and the motor immediately threw a rod. The rod then came through the side of the block. A missed shift can really trash a motor.

But it sounds like your vq35 lived to see another day.

Why were you trying to "match the vehicle" beside you? Trying to box the guy out? If that's the case, the missed shift is known as "bad Karma"

 

I did that on my motorcycle once and if its too long/high of a rev, the computer would likely have shut it down. It did on my motorcycle (Hayabusa). So you should be fine. You'd know pretty quickly if there ws an issue. My bike revved about 2K rpm or more above redline and it does have a limiter.

 

First of all the rev limiter only keeps the motor from accelerating past redline under power. When you go past redline the computer cuts fuel and the car stops accelerating. Cutting fuel wont stop the motor from spinning if it's being pushed by the tranny as in this case.

Secondly, if the car is running fine you should be OK. If something was damaged there's not much you can do until it starts showing symptoms. Chances are it's fine. I would just drive the way you normaly do and pay attention to any strange sounds or behavior. No need to drive it easy for any length of time. If you did damage something it's not going to heal its self by resting. That works for the human body but not for machinery.

If it were me I wouldn't worry about it.

 

There is nothing you can do about it except admit your an idiot for racing a family sedan, and not even doing it well.

 

Now that was not very nice. Someone is crabby.

 

Check out this movie. This is what could've happened

http://www.kontraband.com/show/show....s&NSFW=&page=5

 

That was funny as hell. haha. Stupid ricer. haha.
Thats one of the few good things about having an automtragic, no dangerous over-revving.

 

Well on a miss-shift the most common things that can happen is bent valve(s) or shearing the lining off your clutch. If your clutch feels fine and your car idles fine I doubt you hurt anything. There is a simple test you can do to see if you have a bent valve called the dollar bill test. Hold a dollar bill up to the exhaust pipe if it blows the bill out your good, if it sucks in.....you have a bent valve. Hope that helps.

 

mdloops- why do you always need to bug into everyones thread ? STFU and don't respond, sell all your POWER MAKING MODS- like the Ypipe that makes whoppn 6WHP on your 3.5L and the CAI that is sooo "true". You are contradicting what you say- RACING a family sedan, then WTF is up with your "MODS" ? I RACE my Maxima, as a matter a fact I will be out on the road course in April doing some time attack hot laping at AutoBahn in Joliet IL that is just going to open. Not all of us like buying expenssive azz Porsches that break down, cost alot to maintain, and are NOT worth the $$$. Like I said many times, I could buy a new Porsche or a NSX if I wanted to, but I don't need a mortgage kinda car payment for the next 4-5 years.

I let a friend drive my Maxima and he went to 2nd at the top of 3rd gear, I saw the tach swing way past 8K RPM- this was about 70K miles ago, engine runs really strong still. Only reason I let him drive as I was dumped in the back seat and woke up a hour later, I was totally **** faced drunk- but I did feel and see the tach swing past 8K even when drunk.

 

You should be fine. I did this in my 2000 5spd and the oil light came on immediately so I knew it was toast. The car would die the instant I let off the gas, and after 10 more miles it began making a terrible metal to metal screeching sound and was done.. This also happened to be the first night I had my car and the dealership I bought it from replaced then engine, and let me have the one I blew.

 

Well he is the "Howard Stern" of the Maxima community But yea, I noticed that crap too, every one of his threads is a flame of some sort.

Anyways, in regards to the question, I accidently red-lined my first manual car (Eagle Talon TSi) and nothing bad happened. The turbo did go bad down the road, but I don't think it was because of that mistake. I would listen to the mechanically inclined people on here and not worry too much about it.

 

The vehicle that I was trying to match the acceleration of or as others would say (racing my family sedan against) was a 99ish Mustang GT. He did put a 1/2 car length on me but over all I was happy with the results. Well, until I almost blew up the engine that is. Anyway... lesson learned. Just be careful with a manual. It appears as though I lucked out, however for those less fortunate that have shared your stories, I think we all thank you for it. Further, if it saves someone elses VQ then it was worth the effort.

 

I did the exact same thing ~90k ago and no problems to this day with the motor or trans.