Bob Rouleau

Two things - it is my understanding that Porsche does bench test engines and road test each car as well. I suspect the break-in is done then and probably consistent with the "work" it hard" theory.

Why then does Porsche specify a break-in period for the car? I believe the reason has to do with other components, the transmission, differential, Air conditioning compressor etc. When we break in a car, we always think of the engine, in fact there are a lot of other mechanical parts moving and that's the reason the factory specs a break-in period.

Item Two - OCben, I'd appreciate it if you'd be more polite. You can disagree with someone without getting belligerent. Insults have no place on these forums and I am disinclined to endure them.

Regards,

Soulteacher

Yaaaaaawnnnn...

We have like, what, over 50 threads on this topic already? I'd rather see Vancouver's girls again than more of this bla bla.

But that's just me.

Queram

I think they do not want to get lawsuits since justice system in USA is welcoming anybody to sue anybody for any reason. I think this may have to do with it since somebody stated that US cars have it written while ROW cars have it suggested.

Queram

That would be sweet

Chris C.

Thanks Bob. With whatever respect might be due, it's about time someone tried to reign in the self proclaimed Omnipotently Cerebral one. Boorishness is not attractive on a web forum either.

Bob Rouleau

Chris - I am not going to take sides. The point is that the tolerance for insults, boorish and belligerent behavior has been severely reduced by Rennlist.

OCBen

I challenge you to support your charge of boorishness. It's one thing to throw out accusations, and it's quite another, isn't it, to back it up with actual proof.

For the record, this kid in question frequents our 997 forum and, after over 1000 posts, outright refuses to support John D's site by becoming a Rennlist Member, even after many of us have tried to convince him to do the right thing. He likes to harshly criticize others for their personal choices (speaking of boorishness) and often misleads others with his misinformation, requiring on more than one occasion for someone to step in and correct the bad information before someone is led astray.

Most of us ignore him for the most part, as evidenced by the last thread that he started, complete with pics, and nobody replied.

In fact, one Rennlist Member just PM'd me the following:

You probably spend most of your time in the Boxster forum and so you probably don't know the history here with us trying to convince this guy to become a member.

Le Chef

And interestingly reading past threads on this forum and others that most people who are offered these cars avoid them, and are encouraged to avoid them by other posters. You can't have your cake and eat it.

Either these cars are correctly run in, or they're not. If you recommend "driving it like you stole it" during the running in period, would you put down your own money and by an ex PDE car? Let's have a show of hands on that one!

mdrums

Well, my wife and I went to a local dealer to test drive a C2S and C4S to feel the differance last weekend. The salesman brought the C2S from around back because they just got it off the truck the day before and it just got through check in. Brand spanking new with 9 miles on the odometer. I go 1st while the wife waits and right out of the parking lot the salesperson nails it all the way to redline in 1st and 2nd. We go right out to the interstate and he nails it again through 1-2-3 right up past 100mph. So much for break in! He said the manual is all lawyer speak and the engines are dyno'd at Porsche and no need for break in.

humbug

I hate it when these salesperson "nail" these new cars. It really bugs me, because if you do end up buying this car and it has problems...the on board computer will show that the engine experienced high revs. during break in and blame it on you.

Pugnacious

Please don’t edit out the full context of my post to try and make your point. You need to re-read the entire post as I clearly stated and I quote “Whereas I don’t drive a new car (or new engine) like I stole it I do work up to full power and full rpm in a much shorter mileage schedule than the manufacturer recommends.”

I never suggested that I would buy (or should anyone else for that matter buy) a PDE car. The point I was trying to make about the PDE cars is that Porsche doesn’t seem to be too concerned about “proper” break-in as they stand behind the PDE cars for the full duration of the warranty with no exclusions as to coverage. That was the only point I was attempting to make.

dstrimbu

Well, there's probably a happy medium between the US-spec manual break-in procedure and simply bouncing a brand-new motor off the rev limiter.

As a mechanical engineer who has designed reciprocating machinery, I can tell you that all mechanical devices (especially internal combustion engines) can benefit from a staged break-in of some sort.

Clearances are tight, and sliding components (like pistons, rings and cam followers) will benefit from reduced power operation initially.

As someone stated earlier, with today's metallurgy and manufacturing techniques, the first 20 miles are probably more important than the first 2,000. That being said, I'm not sure if you want that car, Mdrums...

We're probably done here, eh?

-don

Le Chef

It wasn't meant as an attack on you but to make a couple of general points about double standards.

When people claim you should "drive it like you stole it" they are often the ones who say they wouldn't buy a car that had been driven like this.

Second Porsche may not care, but if they set double standards (how the cars are driven at PDE and how sales guys drive them out of the box vs. recommendations in the instruction book) they can expect the consumer to complain. And rightly so if warranty is denied later because of the way the car has been driven.

Pugnacious

Points well taken!

Eggplant Cab

Excellent point.
When I picked up my CS in Zuff, I spoke to "some people" at the factory as well and they told me X51 engines are definitely broken in at the assembly line. I was concerned since I was going to the ring. What he told me was what I did with all my porsches, vary engine speed with forays to peak hp rpm but not too long there. No sustained running at over 5000rpm for the first 500 miles. Of course he's just a senior engineer at PAG. I keep my cars for a minimum of 8 years so I tend to like longevity in the engines.
my 2 cents