Engine over revved

Asked by Dec 28, 2016 at 08:16 PM about the 2001 Porsche 911 Turbo AWD

Question type: General

I did a PPI on a Porsche 911 turbo 2001 for sale. the engine over revved
Range 1 : 8000/5 driving hours
Range 2 ; 800/10 driving hours
Should I buy this car ? what can be the problem in the future ?

4 Answers


I am not sure how much the engine over revved but do you really want to buy a car that has been raced? Find out if the owner club races on the weekend.

1 of 1 people found this helpful.

Today you have up to range 6 to look at over-revs. My concern is how many hours ago was the over-rev? If is over 5K miles and the engine is not smoking or knocking, all is normal in the matter of physics. In the old days, we tested an engine by running high RPM's in second gear. Let off for a second. Full throttle, check the rear view mirror for smoke. I doubt if this car has been raced. Does it have cage? Full Interior with AC? A Porsche design-in was not for street abuse, light to light. Those are the people who will over-rev an engine, miss a shift, scatter the gear box. Or worse! If I buy a 500 HP car, hopefully, the owner had sense enough to drive the car the way Porsche designed it. On an open road course doing laps. An engine running in fresh oil with continuous lubrication is far better than the garage queen dry rotting month after month. There can be a million hypothetical scenarios on why cars fail. All based on fear of the unknown explained by the greater unknown. Find a reason why this car will work for you. Evaluate your risk. Then, make your decision. Be a Porsche Owner, not a museum curator. Drive the car the way it was designed.. SIDE NOTE: I have raced for 9 regional championships with 3 different clubs.. If fear and hypothetical nonsense engulfed my mind. I would have sat in the paddock... wondering.


Have a compression test and a leak-down test performed. Good results will confirm a good engine, simple as that.


Type 1 is a run up to red line with the fuel cut off stopping the engine before any damage happens. Type 2 is the classic missed shift Mechanical over rev and is the primary concern. The first number is the count of sparks and the second is the engine hours it occurred. 800 sparks at say 7500-8000rpm is about 3 second, not much. Further, I assume a 2001 has many hours on the engine, where the Type 2 happened only 10 hours into the car's life. These seem like a new driver learning the car made a few mistakes. But if it has many happy hours on the engine after that. If there was damage from these, it would have probably failed way before now. Unless that hours assumption was wrong, this was stored away and there are only 10 hours on the engine. You didn't state total engine hours. That is important.

1 of 1 people found this helpful.

Your Answer


Looking for a Used 911 in your area?

CarGurus has 5,277 nationwide 911 listings starting at $10,099.


Porsche 911 Experts

  • #1
    Michael Kane
  • #2
    Andrew Dickens
  • #3
View All

Related Models For Sale

Used Chevrolet Corvette
113 Great Deals out of 16,308 listings starting at $3,995
Used Porsche Boxster
42 Great Deals out of 1,266 listings starting at $4,995
Used BMW M3
28 Great Deals out of 1,829 listings starting at $5,495
Used Mercedes-Benz SL-Class
57 Great Deals out of 3,359 listings starting at $3,995
Used Ford Mustang
342 Great Deals out of 41,798 listings starting at $1,488
Used Mercedes-Benz S-Class
117 Great Deals out of 7,495 listings starting at $1,200
Used Mercedes-Benz E-Class
511 Great Deals out of 21,795 listings starting at $1,999
Used Chevrolet Camaro
371 Great Deals out of 31,504 listings starting at $3,000

Used Cars For Sale

2018 Porsche 911 Turbo AWD For Sale
38 listings starting at $169,030
2017 Porsche 911 Turbo AWD For Sale
22 listings starting at $146,382
2016 Porsche 911 Turbo AWD For Sale
8 listings starting at $119,900
2015 Porsche 911 Turbo AWD For Sale
37 listings starting at $114,890

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.