If changing gear most of the time at 6000 or 7000 rpms, will the clutch wear out quic

[Jaxonalden]

Riding the clutch does two things;
1. If you drive with your foot partially depressed on the clutch pedal, it will engage the throw out bearing on the pressure plate and the throw out bearing will spin with the engine RPM causing premature wear.
2. From the time when the clutch disc touches the fly wheel until it's full engaged and spinning the same RPM's the disc is "slipping". The less time the disc slips the less wear on the disc. (I'm not advocating side stepping the clutch, that's a whole other story)

To answer the original question, if your quick and smooth with your shifts you should be alright. Just a personal thought; There's an old saying that I live by, and being a mechanic all my life I can attest to it;

Double the RPM, triple the wear.

P.S. You like to rev it to the redline? Remember that the computer logs rev limiter and over rev's. My new Durametric scanning tool showed my '04 S was 0/0 on both counters. Good news for reselling and warranty work.

[renzop]

If you are afraid of clutch wear there is one simple fix - don't use the clutch. That's right, I said, don't use the clutch. If you shift smoothly and slowly and put it back in gear at the exact rev-matched RPM you don't need a clutch.

Try it at low RPMs sometime. Pop it into neutral with your foot on the gas just a little. Then lot the RPMs drop for the next gear, rest your hand on the shifter and apply gentle pressure. It will drop right in.

Now, I do not recommend doing this as a regular habit. But doing it a few times will give you a better feel for how the drivetrain wants to shift. Then shift like that but with the clutch and you should get very long clutch life.

Regards,
Alan

[Brucelee]

Assuming you are using the clutch correctly, no worries.

Your engine is another matter. Keep redlining that baby and you will get a nice $12K surprise.

Good luck.

PS-Do a search here on blown engines. It may change your driving habits.

Good luck.

[Paul]

Originally Posted by Brucelee

Assuming you are using the clutch correctly, no worries.

Your engine is another matter. Keep redlining that baby and you will get a nice $12K surprise.

Good luck.

PS-Do a search here on blown engines. It may change your driving habits.

Good luck.

Where is the proof that shifting at redline (not exceeding it) hurts these cars?

I've shifted mine above 7000 at full throttle at least a 1000 times by now (15 times yesterday).

69,000 and counting.....

[pteam]

Originally Posted by Paul

Where is the proof that shifting at redline (not exceeding it) hurts these cars?

I've shifted mine above 7000 at full throttle at least a 1000 times by now (15 times yesterday).

69,000 and counting.....

Great quote there.

[Jaxonalden]

Hey it's your car, I was just giving my opinion on shifting at redline. As an aircraft mechanic for 24 years that works on his own car I know the consequence of abuse. Just because it's a Porsche doesn't make it bulletproof.

Don't get me wrong, I don't care what you do to your car. I just hope you don't experience valve float and bang a piston.

Use it, abuse it and accept the outcome...it's your money and time, not mine.

[pbanders]

Originally Posted by Jaxonalden

Hey it's your car, I was just giving my opinion on shifting at redline. As an aircraft mechanic for 24 years that works on his own car I know the consequence of abuse. Just because it's a Porsche doesn't make it bulletproof.

Don't get me wrong, I don't care what you do to your car. I just hope you don't experience valve float and bang a piston.

Use it, abuse it and accept the outcome...it's your money and time, not mine.

Redline = Abuse? Redline = Float a valve? Of course not. If so, every BMW and Porsche DE event I've ever been at would be a sea of broken engines. It doesn't happen.

Abuse is doing WOT acceleration to over 4K with cold oil. Abuse is pulling a money shift from 5th to 3rd on the track. Abuse is ignoring oil starvation in 180 degree sweepers on the track (something our Boxster engines are designed to prevent).

I drive my car as it was designed to do. If Porsche is afraid of that, hey, there are many other options out there.

[pbanders]

Originally Posted by Brucelee

Assuming you are using the clutch correctly, no worries.

Your engine is another matter. Keep redlining that baby and you will get a nice $12K surprise.

Good luck.

PS-Do a search here on blown engines. It may change your driving habits.

Good luck.

Is this really true? My impression is that most of the dead motors I've seen on this forum weren't due to high revs, rather, they were caused by design flaws in the motor (e.g. cylinder liner, IMS) that weren't triggered by high revs.

If you can't redline your Porsche, what good is it? I've regularly redlined all the BMW's and Porsche's I've owned as that's what they were designed to do. I've banged the rev limiter on all my cars more times than I could count - even our Toyota minivan!

[Paul]

Another Paul that knows how to drive Porsches!!!!

[pbanders]

Originally Posted by Paul

Another Paul that knows how to drive Porsches!!!!

Now you've done it. It'll probably throw a rod the next time I hit redline

[Jaxonalden]

Sorry, I have to chime in here...

Redline (max recommended RPM's) and rev limiters are in place for one reason and one reason only by the manufacturer. If you exceed them, permanent engine damage will result, period. So constant revving up to it- I'm sure isn't good.

As I said in a past post, the on board diagnostics records all over-rev's and length of ignition interruptions (rev limiter). Big brother's recording you and if the dealer sees it while doing warranty work, forget about it!

I guess you can rev minivans to redline all the time and nothing will harm them right?

[Paul]

Originally Posted by renzop

If you are afraid of clutch wear there is one simple fix - don't use the clutch. That's right, I said, don't use the clutch. If you shift smoothly and slowly and put it back in gear at the exact rev-matched RPM you don't need a clutch.

Try it at low RPMs sometime. Pop it into neutral with your foot on the gas just a little. Then lot the RPMs drop for the next gear, rest your hand on the shifter and apply gentle pressure. It will drop right in.

Now, I do not recommend doing this as a regular habit. But doing it a few times will give you a better feel for how the drivetrain wants to shift. Then shift like that but with the clutch and you should get very long clutch life.

Regards,
Alan

Anyone doing this should be ready for some expensive tranny repairs.

[pbanders]

Originally Posted by Paul

Anyone doing this should be ready for some expensive tranny repairs.

While I wouldn't recommend doing it all the time, upshifting without the clutch in the way described won't damage the tranny. The problem is that when you push the lever forward to engage the synchro, the bigger the speed difference between the engine and tranny, the more wear you put on the synchro. If you're very skilled and consistent, you could probably keep wear to a minimum - but why do it? That's why you have a clutch in the first place. For me, it's a good technique to know (though not on my own Boxster - it's a Tip) in case you ever have clutch issues and need to get home.

If you want to really refine your skills, learn to downshift without the clutch, a bit more of a challenge to do it smoothly.

In terms of wear, the way I think of it is by the cost of the components. Brakes are cheaper than a clutch, and clutches are cheaper than a tranny. So, I use my brakes instead of engine braking, and use my clutch to minimize tranny wear. On my M3 and 914, I've always been in the habit of double-clutching all downshifts, it's only marginally slower and saves a bit of synchro wear, while giving you a jerk-free gearchange.

[Paul]

I've been hearing this advice since the 70s, and have a long history of fixing teenager's transmissions after they have tried this.

If you wish not to use the clutch, install a tranny without synchros.

[SilentThunder]

Originally Posted by Jaxonalden

P.S. You like to rev it to the redline? Remember that the computer logs rev limiter and over rev's. My new Durametric scanning tool showed my '04 S was 0/0 on both counters. Good news for reselling and warranty work.

Not impressive considering you drive the chicktronic. If you had on 04 S that was a manual with 0/0 redlines itd either have like 30 miles on it or your 90 years old and dont drive above 30 MPH :P