Jackie Chiles

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Interesting.

If Porsche will not warranty it's cars for track days or HPDEs they may have a false advertising problem. How many of its marketing pics show its street vehicles on a race track? Dozens or hundreds?

But the devil is in the details, so I'd like to be able read the entire warranty manual before making a purchase decision (new or used). But if the warranty manual is not precise or specific about whether track use voids a warranty I would argue that it fails due to ambiguity, such as the phrase quoted above.

One final comment: I've never heard of headers causing a camshaft failure before. In the old days before fuel injection you could burn a valve if you didn't rejet the carbs after installing a high performance exhaust system, but I believe modern ECMs compensate for this. No?

lunarx

I suggest letting dealer reinstall your stock headers.
Increases your chances for warranry coverage.
You can install the race headers, after you get your car fixed.

drwuss

EEEEEK
what happened?

trebien

He's gone from "ShakeNbake"... to "S'Mores".

ShakeNBake

needmoregarage

+1???^

funny - and glad to see he can laugh about it. Hoping that means it wasn't too serious.

ir_fuel

Wat a load of ...

Porsche doesn't need any video to deny warranty. Anyone with a Durametric cable can pull the overrrev list on a modern Porsche, so Porsche most certainly can. Even if there was a video showing the needle shooting up to 10K rpm and nothing is in the ECU logs there isn't any problem at all. ECU doesn't lie.

Concerning warranty claims in general: in Europe they are extremely severe. You can get stuff under warranty if your car has been tracked, but you change even 1 bolt on your rear view mirror to a non OEM part and they can deny warranty on the entire car if they ( = the factory) find out. I've seen this kind of stuff first hand (car being refused any warranty claims because of a non OEM front bumper install for instance). The relationship with your dealer is super important in this case. They can help you "cover up" sometimes if the mods are irrelevant to the damage done.

It seems that in the US they have a more relaxed attitude towards this.

Jackie Chiles

Porsche NA is probably more reasonable about this because of the Moss-Magnussen Warranty Act, which protects the consumer against frivolous warranty coverage denials.

I know it's just a Wiki, but here you go:

https://en.m.wikipedia.org/wiki/Magn...s_Warranty_Act

Quick edit: Even if there is an over rev it is still the manufacturer's burden to prove that the mechanical problem was caused by the over rev.

drwuss

Out of curiosity, when "SPORT" mode is activated (the picture from the video shows it on in this instance) how high will the computer rev the engine in an attempt to rev match when it assumes you are going for that gear? Is it possible for the car to "over rev" in this scenario without ever letting your foot off the clutch?

myBailey07

I don't have 100% proof but I am pretty sure the auto rev match does allow the car to overrev. I had a few cases where I almost mis shifted but never let out the clutch. When I look at the video, vbox data and over rev report it does look like it allowed a few level 1/2 over revs.

I guess it makes sense to me as it probably would be safer to over rev and match the rev, rather than just "dump" the engine/transmission in case like this.

I would like to have confirmation as to whether my observations are correct.

kitwetzler

Range 1/2 are NOT overrevs. Range 1 is generally less than redline, range 2 is the rev limiter and range 3 is slightly over. Range 4-6 are overrev.

There is no way to get over the rev limiter with gas pedal. You'd need a mechanical overrev to get to range 4-6

myBailey07

We just use the terms slightly different. In my book there are six over rev ranges showing up in a dme report. I agree that 1-3 is not problematic.

I agree that you can't get over the rev limiter simply using the gas pedal; however, the question is whether the auto blip will take you over.

Try the following: Drive up to just before redline in 3rd with the auto blip engaged. Now rapidly clutch in and put the shifter into 2nd as you would shift on track (without letting the clutch out - letting it out would be bad idea ) It sure as heck looks to me like it blips well over red line....but that was from studying older track videos where I almost did a mis shift by accident.

I might be wrong, but don't think I am and I am too afraid to do the experiment on purpose.

John@Fabspeed

My pleasure Josh Very excited to hear your thoughts versus the Sport Headers on track, and of course for you to get back out there ASAP!

I appreciate the kind words Steve, and we are always out to help in any way we can. Give me a ring when you have some time, it has been a while and we should catch up

jslee225

called my service guy today to get an update and it doesn't look good. They are still investigating but at a minimum I'm going to have to replace camshaft and cylinder head

They also need to determine if they need to replace pistons. He mentioned he'll give me more info tomorrow.

agh!!!!!!!!!!

texasviany

Odds are the timing gear jumped a tooth or 2.....