FC356

#1
FC356
User

Join Date: Jan 2004
Location: CAJUN COUNTRY
Posts: 8

Default Test drove at 07 GT3 today
I looked at a local 07 GT3 for sale today. Only 1250 miles, local one owner. Rear tires gone, so the previous owner may not have followed break in regimen. I will do a PPI if possible to make sure there are no issues. I need to know what repercussions are possible with Porsche reading computer to see if car has been over-revved and how that might affect warranty issues. Can anyone shed light on this.
I am also having reservations about having to sell my 97 993 TT to get into this car. On one hand, I am a diehard air cooled guy, but on the other I would like a newer car with a warranty etc. The GT3 is the only modern Porsche I would consider swapping my 993TT for. I would still have my 72S and my 356SC. Comments, suggestions??

TIA
Frank

pstoppani

That's a hell of an expensive warranty... just sayin'

ca993twin

Frank,

Like you, the GT3 is the only Porsche that might coax me from my 993. But I love my car too much. In an unhealthy way, I might add.

Anyway, I would suggest you get that ECU read for the type of over revs that are caused by a missed shift. Those can bend valves and will cancel the warranty.

Best of luck. You have a great collection. Too bad you can't add the GT3 and keep the 993.

TT Surgeon

I would not trade a 993tt for a gt3.

UserA

Yeah seriously. Take the first 6 months of depreciation that you will get with the GT3 and save that for repairs to your TT. I think that you will save money staying in the 993.

No HTwo O

Frank, here are the 6 rev ranges for the 997 GT3:


Range 1- 9000-9200
Range 2- 9200-9400
Range 3- 9400-9600
Range 4- 9600-10000
Range 5- 10000-11000
Range 6- +11000

Range 1 and range 2 are common. Range 3 are very rare. Range 4-6 will be used by Porsche to void the warrenty.

Keep in mind that missed down-shifts causes the rev limiter to be exceeded, since the rev limiter does not protect the engine on the "way down" only on the "way up" when shifting. The rev limiter can also be exceeded if the car is spun, and the clutch is not "in" fast enough.

Good luck on your quest for a GT3.

ca993twin

I'll defer to anyone who actually knows about those over rev codes. However, it was my understanding that there are two "TYPES" of codes stored, one is the normal over rev where the engine electronics keep you from harm. The other is the damaging TYPE caused by downshifting to a lower gear, as No HTwo O describes. One is called a TYPE 1, and the other a TYPE 2. I don't know which is which. I have heard that ANY count of the damaging TYPE of overrev will void the warranty.

FC356

Hey Guys
Thanks so much for all the info and advice. I really appreciate the input. With this info I hope to make an informed decision. I am kinda leaning on keeping my 993 TT. I looked for a good year before finding the right car, and there is something so comforting in looking at the familiar 5 gauge setup and dash and line of the front fenders thru the windshield. I've been driving air cooled Porsches since the 60's and I guess I feel that water and oil does not mix.

Frank

No HTwo O

In a 997.1 there are the 6 ranges I posted above, not just 2. These are stored on the DME. You can request (as I do) a print out from the dealership when your car is in for service/maintenance. I keep this yearly report in my specific car's maintenance file.

I would say there are only two types of "normal" over revs....type #1 and type #2. These can happen from normal driving while approaching the rev limiter and actually hitting it while up or down shifting.

On some Porsche models, if you also have the Sport Chrono option, you have a harder red-line too. Meaning power is not pulled off until you actually hit the rev limiter. Without SC the DME will start pulling off power at about 500 RPM before red-line.

The rev limiter will not protect you if you; miss a shift, are down shifting, or spin the car without getting the clutch in fast enough (you spin the engine in the opposite direction).

Range #3 over-revs are bad and rare. Borderline warranty void. If a perspective car had any range #3 over-revs, I'd take a pass, and keep looking.

Anything in range 4-6 spells T.O.A.S.T. for your engine and warranty.

A well maintained and cared for car can have literally thousands of ignitions in range #1 and hundreds in range #2. But it should not have any in range #3 and absolutely zero in range #4-6.

The rev ranges I posted about are similiar for the 987 and 997 with a slight adjustment for those car's lower red-line vs. the GT3.