Is RedLining very often bad for the car?

[upflying]

I frequently hit the revlimiter on the Harley I ride. No problems with 24,000 mi on the odo.

[Bumblebee2012]

They don't count, those lawnmowers red line at like 4 revs per hour.

Sent from a Galaxy S3, far....far away.

[midnighter]

I love reaching the redline.

[chaoscamaro]

But the redline is so broad. The rev limiter normally kicks as soon as it redlines at 6k but the tach goes all the way to 9k. So would it really mess up the engine at 6? I hit 6 only once because there were a lot of cars around me which I was paying attention to instead of my tach and noticed it stayed at 6k, then said with a smile- so it does have a rev limiter.


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[DarkneZZ]

Originally Posted by stikSS

Why do you get a thrill of redlining the car? It sounds to me you don't know how to time your shifts. These cars redline around 6250... plus its peak power is 5800... so anything after that it starts to fall off anyway.

I just don't get why you would WOT to the redline every chance you get... its only damaging the internals of the motor.

Sent from my Apple sued Galaxy Note 2

I drive in M, and it shifts for me.
Why I get a thrill of redlining a car? lol, I bought a Camaro, not Prius. I like feeling the power and sound. Puts permagrin on my face, but I have no idea if that is damaging the car or not.

I am not planning to keep this car forever, most likely it will be gone before I even hit 50k miles.

[Number 3]

If you are running the engine to redline with WOT you are doing more damage to the engine that if you simply drove "normally".

The good thing is that GM already assumes that a number of people will do this on a regular basis and includes many WOT runs on the dyno.

So the entire powertrain is engineered to do this a lot more than most people will ever do.

What you are doing is creating a load on on the internals. The issue you will have is from fatigue. But essentially this is damage due to stress built up over time. The strength of the internals should be fine meaning the load on the internals should be nowhere near yield which results usually in deformation.

This is what happens when we get into the discussions on aftermarket calibrations. The aftermarket tuners remove many of the GM engineered cushion which generally will increase the loads on the internals resulting in additional fatigue damage which depending on the circumstances lead to earlier engine failures.

But if you are stock, your engine was designed to take a certain amout of "fun".

[shrinkdoc]

Personally I think the V6 has even more to give after the 7k redline. I hit it so quickly like it wants to keep going but it shuts down. My Harley davidson had a redline limiter but there is a computer kit to extend it and have been using it for the last 7 years with now over 33k miles and it runs as good as new. And I dont get that annoying engine cutout.

[oldfriend]

Originally Posted by upflying

I frequently hit the revlimiter on the Harley I ride. No problems with 24,000 mi on the odo.

On the Harley you ride , is that the same one woth BLUE /red lights that we pay for you to ride and service it .
Good to know that you taking good care of her

[BigBlock69RS]

Originally Posted by Bumblebee2012

My opinion is that you car has a preset number of over revs written on an invisible sign over its head. At that number, a rod comes through the block or a crank fractures. If you want to find out your invisible number sooner, rev it to the moon more often!

Sent from a Galaxy S3, far....far away.

X2 it's called wear and tear. High revving motors have often greatly reduced lifespans over lower reved motors. When you take into considerstion the angular velocity and weight being moved around at even 6k rpm vs 3k there is no question. However how much time do you spend at 6k vs 3k,? probaly not enough to worry about unless its extreme.

[DarkneZZ]

Originally Posted by BigBlock69RS

X2 it's called wear and tear. High revving motors have often greatly reduced lifespans over lower reved motors. When you take into considerstion the angular velocity and weight being moved around at even 6k rpm vs 3k there is no question. However how much time do you spend at 6k vs 3k,? probaly not enough to worry about unless its extreme.

If I maintain it and service properly, do you think it will last 100K without major problems?:s

[Bumblebee2012]

If you rev it's balls off.... who knows? If you drive it like an old lady, it really should go somewhere between 1 and 3 hundred thousand miles assuming no gross manufacturing defect shows up.

Every graduation of beating in between will flex the expectations from anywhere between 5k miles life expectancy and 350K miles life expectancy.

That really is a..... question that truly can not ever be answered. Nobody has a crystal ball. You can treat it like a baby and an internal casting flaw can slowly propagate from the ID of the crank or a rod and go free at any time. There may be no embedded casting defects and you may beat it like a step child for 200k miles. Who could ever be so brazen as to say what the future holds?

Sent from a Galaxy S3, far....far away.

[Orange Pulp Fiction]

Originally Posted by Bumblebee2012

Those fools that rev an engine to the moon for attention should be shot in the face.

[Bumblebee2012]

Originally Posted by Orange Pulp Fiction

Would you prefer... kicked in the nuts? Shooting in the face just seems to get the point across so well. Men just get it. It's never questioned.

Sent from a Galaxy S3, far....far away.

[Bumblebee2012]

Originally Posted by karguy

You can do the math easy;stroke in mm times max rpm divided by 30000
Above 21m/s is considered critical piston speed...

4.3" stroke = 109.22 mm
109.22 x 8800 = 961136
961136 / 30000 = 32.037 m/s.

Damn. My stuff is impressive!

Sent from a Galaxy S3, far....far away.