McCrazy

I really need to hook my 997 up to a DME and see what use/abuse my engine has seen. Anyone have one in the Nashville area I can use?

OP- this situation sucks and best of luck to you. I hope it works out and will check in to see the results.

sandwedge

Over revs are also reset by replacing the DME unit. Had that done on my -06. I think this was a recall/campaign item for certain serial number cars so could be a substantial amount of cars floating around with artificially clean DME readouts.

kleddon

I blew my engine at the track due to a bad downshift. My 2006 C4S engine had about 54K miles on it. I replaced it with a new Porsche crate engine at the local dealer and expect to keep this car for several more years as well. I believe you can preserve a higher resale with a dealer installed factory engine. I also decided to keep the car on the street and bought a Miata race car for the track that I can destroy and throw away. Everybody has their own reaction to this type of fiasco. That was mine. Good luck with you choice of engine.

Edgy01

While that is a nice idea, it will not fit. Even the tranny will not mate up to the Mezgar engine (GT3 engine) in your CarreraS

MessyMarvin

Smart move buying the Miata, when set up correctly they are just as much fun and you can not kill those things. I have thought about doing the same, but have to many cars already and no time to track.

utkinpol

If you plan to get rid of this car - get porsche crate engine with warranty then sell it away. If you want to keep this car - give it to Jake and pay him to make you M97 motor what will last. He is expensive but he is probably the best. Arguably you can shop for other shops that use similar techniques for less price. Crate new motor is same garbage that already exploded in your car.

Sgt Angus

Oh I think revving the car in neutral with PSE off then doing it again with PSE on and revving it just that 'little' bit higher would do it
Report shows that this was over a year ago though... Who knows?

Talked with Sunset in Oregon. Rebuild engine (w/alternator, intake etc) and a 3 year unlimited mileage factory warranty is $16900. If my core is bad it is an additional $9500.
New factory engine w/o core is $40K

This would put me back at square one with the known issues the 997 engines suffer.
I'm leaning toward getting something more robust than OEM for a rebuild. The quest continues.

gota911

But a large percentage of them will not have range 4 and 5 over revs.

LexVan

Nope.

Lvt19672

What rpm is range 4 and 5?

LexVan

Range #4 is 7,900-8,400
Range #5 is 8,400-9,500

Fuel cut off is before both. So you can't just sit on your driveway with PSE and rev up to 7,900 ++++, IMO.

fbfisher

And that's why the call it "the money shift." 7900 - 9500 RPM and the tach only goes to 8000, is a massive over rev. This can happen standing still in the driveway? How? I wonder who you let drive your car "over a year ago." Totally sucks to have this happen, I just don't understand how it's possible.

XteaK

wow, sounds like a downshift from 6th to 3rd letting the clutch off all the way before correcting. Sorry to hear, I hope you get your car back in shape soon. Keep us posted and post some pics if you can.

fbfisher

How fast do you have to be going in 6th to have 3rd peg the tach?

Sgt Angus

OK, either those ranges are incorrect or my cars computer is whacked.
There is no way the car has revved that high. I assumed 4 was like 7300 and 5 was 7500rpm.
I see now what you meant about revving in neutral not hitting those numbers!

I've been the only driver since buying it last year and I have not done a 6to3 or 5to2 downshift.
When I had the PPI they said no revs over 3. Very strange.