Overrevs

Porsche guys are the new Ferrari guy.

Extremely nuanced buyers

They aren't really big car guys. They are Porsche guys.

The market is swayed by what people tell them is important. Not what is.

Yes over revs can depending on the severity can be bad. But any are treated like an uncuttable disease. And all of this on the wonder highly coveted Metzger engines that are unbreakable and Motorsport derived blah blah blah. So the engine is designed to rev and be robust but God forbid anyone use the car the way it was intended.

The Porsche market for the last 5 years has been fueled by speculators looking to make a quick buck. Most of them out of the financial services industry that went caput.

They made nuance of things that never typically mattered to Porsche people as a reason to justify pricing.

So now they are reaping what they showed. But... The speculators have left but their finger prints are still on the buyers checklists.

Deviated stitching 12k for paint to sample... Leather air vents. These guys truly became worse than Ferrari guys.

My favorite... Gotta have ceramic brakes... Yet... Anyone who uses their Porsche for track work changes then to steel brakes. Hilarious.

And the main thing that is affecting sales all across the board in the car world...

Any excuse to not buy it will suffice. Only one key... Nah don't want it. But wait I'll buy a replact... Nah only want original keys. Sir if I bought the key before you asked you'd never know... Hello? Sir? Sir? Did you hang up?


Maybe I'm bitter.

But the above is the bitter truth

 

Watch the u- tube video of Derek Bell running the 24 HRS Lemans at night, and the engineer Norbert asking him the revs he was pulling on Mulsane 3.7 mile straight? Bells says 8100, Norbert says good because it blows up 8200!

 

Overrevs don't happen with the DCT transmissions as the computer doesn't let it downshift to that point. Overrevs are stopped by rev limiters when on throttle. If you downshift a manual trans and cause an overrev, if you didn't float valves, you are ok!

 

Pissed Off Rebuilding Six Cylinder High-strung Engines

 

Lugging (underrevs if there is such a word) is just as bad because you don;t get the hydrodynamic lubrication in the main and rod bearings.

 

That plus maximizing power at low RPMs places maximum forces on the bottom end. Think of riding a bicycle up a hill in fifth gear while standing and pulling up on the handlebars, versus going up seated in first gear.

 

I can't recall the last time I have heard of an engine blowing up, throwing a rod, etc.; unless there was some design flaw (Porsche 911 991.1 GT3).
The thing that makes modern cars a PIA are failing sensors, chips, ECUs, PTUs, DCT, electronics....I suppose if you were a heartless careless SOB abusing a car on a regular basis it would be different...but an occasional accidental "overrev" Really"

 

They don't check because they can't and no one cares because well... There isn't really anything to worry about. Just like on a Porsche but now the buyers pool has been tainted with whadabout-isms. The ship has sailed.

 

In theory that makes sense. But it's not right.

It doesn't maximize force on the bottom end to make any great difference.

In your example did you ever snap a leg? Crank set? Pedal?

Nope.

The stress exerted at lower rpms and on a gasoline engine is low because engines don't make much power down low.

Rpm. Kills everything. RPM places far more stress then add in that you are making usually aboit double or triple the power at say 6k rpm.vs 2k rpm.

You want to factor stress? How about taking a rotating assembly accelerating past 8k rpm rpm when you change gears it gets twisted back and slowed to 5500 rpm rpm you do that over and over and over and over.

Bottom ends on cars are built extremely tough. Lugging an engine isn't going to hurt the bottom end on a modern car.

Heck most modern cars bottom ends can support a minimum of double their factory hp output. (Except when you get over 600hp from the factory)

 

Plus, don’t all modern cars have electronic rev limiters? When I raced my Miata, there would be times I’d bounce the car off the rev limiters because there wasn’t enough room to upshift, but it was too early to brake.


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The over rev issues are mostly to look for "money shifts". Down shifting too early where the engine is forced to over speed and thsi so where some problems could occur.

But with Porsche just hitting the rev limiter will cause an over speed.

 

It's tough to over-rev a Ferrari when it's sitting in the garage on a battery tender determined not to accumulate miles before it is sold to the next owner.

 

LMAO. Touché.
T

 

I tell you what. The 458 changed that. Lots of 458s and f12 with miles. Ffs too!

 

I am on Porsche #44 and I have not been without at least one for over 45 years. I have blown up engines (actually if you have ever taken a Porsche manual transmission apart you would know that it is the weak link), at least 5 transmissions, but I like to put things back together, usually better than they started out. You would think people would run from any car I have owned but it is the opposite. I often get asked to consider selling to them when I get bored of playing with a car. The overrev thing reminds me of chicken little, you don't have to overrev a car to cause problems, I have seen engines blow that were never driven over 4000 rpm.

 

Honestly if this type of information was readily available for manual Ferraris it would be a big deal and everyone would request it as part of a PPI.