Keep her above 4000rpm and she'll thank you for it every day.

[Bavarian Motorist]

Lol, not even CLOSE to a problem for me.


I beat the crap out of her! She loves me for it.

[teacher]

Though I know this is an old post, I wanted to ask anyone about how long they should keep their cars above 4000 rpm? Ten minutes? An hour? More?
Just curious!
Bill

[Paul]

If you're in top gear, until you get where you are going, just like in Germany.

[Paul]

Once it's good and warmed up, I always look for safe opportunities to floor it and shift above 6000. This happens every time I take it out.

[RandallNeighbour]

While keeping our engines above 4k does keep carbon from building up, it does wear the engine out sooner too. Brucelee stated this elsewhere on the forum a while back when asked this same question. Good logic.

I don't keep my motor above 4k at all times, that's for sure. But I do run it up to redline most every time I drive it though to blow out any cobwebs that might have accumulated in the car between drives

I went through the Tail of the Dragon 6 times last Spring, never shifted out of 2 gear. Kept the RPM's above 4,000 the entire distance, about 12 miles each way.

[Paul]

You left out the best part: Both you and your car were SMILING!

Originally Posted by Paul

You left out the best part: Both you and your car were SMILING!

Still am, Paul!

[Paul]

Is your car smiling or is it sitting in a cold dark place shivering?

My car was smiling big time today!

Two words my fellow white Boxster friend:

H E A T E D G A R A G E !!!!!


I did wax the front bumper today. Like it needs another coat of wax!

Did you drink the '92 Hess yet?

[RandallNeighbour]

Originally Posted by bmussatti

I went through the Tail of the Dragon 6 times last Spring, never shifted out of 2 gear. Kept the RPM's above 4,000 the entire distance, about 12 miles each way.

Ditto here, Bill!

I was in 2nd gear the whole time and well above 4k too while driving the dragon.

However, I don't drive the dragon exclusively with the car and while I move past the 4k mark with most shifts, I don't keep it up there all the time.

Chock it up to $3.50 per gallon fuel I guess

[Paul]

So it's warm and cozy and clean, but it is craving a run!

Yes we saved that very special wine for our 35th wedding anniversary (Dec 23). That wine has character and we enjoyed it! Thanks again for such a generous gift.

I will be doing Treks to the Track again this year (August 16 and 17), plus our Spring tour will be June 7. http://www.porschepark.org/events/

[blue2000s]

Originally Posted by RandallNeighbour

While keeping our engines above 4k does keep carbon from building up, it does wear the engine out sooner too. Brucelee stated this elsewhere on the forum a while back when asked this same question. Good logic.

I don't keep my motor above 4k at all times, that's for sure. But I do run it up to redline most every time I drive it though to blow out any cobwebs that might have accumulated in the car between drives

I read an SAE paper a while ago that measured engine wear by oil analysis if metal particulate. They found that engine wear was not, in fact, related to engine speed at all. It was directly related to load. The higher the engine load, the higher the wear.

Particulate count was consistent no matter what the RPM of the engine for a given load, essentially stating the higher the RPM, they found the lower the wear per stroke.

[Brucelee]

Originally Posted by blue2000s

I read an SAE paper a while ago that measured engine wear by oil analysis if metal particulate. They found that engine wear was not, in fact, related to engine speed at all. It was directly related to load. The higher the engine load, the higher the wear.

Particulate count was consistent no matter what the RPM of the engine for a given load, essentially stating the higher the RPM, they found the lower the wear per stroke.

Love to see this. they have repealed the law of physics here if that is what they are saying. Load and stress on all metal structures within an engine increases as RPM increases. Again, if high RPMS were GOOD for an engine, race car engines would last forever. They don't, not even for weeks.


BTW-wear is measured by things other than particulates in the oil.

[Paul]

Unless you are going to keep your car for 150,000 to 200,000 miles, who cares?

With just the Porsche recommended maintenance you can drive these cars hard for at least that long.

It's a toy, enjoy it!

[rule1]

Should you run your car over 4000 rpm before its warmed up?

[Frodo]

I'd venture a "Negative" on that one.

Don't know a heck of a lot on the matter, but my gut tells me (and I follow it!) to keep her down at not much (if any) over 3000 RPM until warmed up (180 on the temp gauge). So far so good.

[blue2000s]

Originally Posted by Brucelee

Love to see this. they have repealed the law of physics here if that is what they are saying. Load and stress on all metal structures within an engine increases as RPM increases. Again, if high RPMS were GOOD for an engine, race car engines would last forever. They don't, not even for weeks.


BTW-wear is measured by things other than particulates in the oil.

It may challenge YOUR understanding of the laws of physics, but rest assured, it's not breaking them.

It's not the RPMs that wear out racing engines, it's the constant WOT and related engine load.

Here's the article review:

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=923479#Post923479

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=923866#Post923866

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=924463#Post924463

[blue2000s]

Originally Posted by rule1

Should you run your car over 4000 rpm before its warmed up?

Check out my link above, there is a strong relationship between engine wear and oil temperature. Warm up that engine before loading it!

[LoveBunny]

I've been told that you shouldn't go above a certain RPM for a certain amount of miles on a new car. Is that true?