What irks me about it the rev range log, is it's not as exact as one may think it would be, and not all buyers understand this in the way the presenter in the video does. My 997 turbo has 5402 in RR1, as it should as I often chase it to the redline and change, but in RR3 I have 8 ignitions, and they relate to hitting the rev limiter as I was changing up from 2nd to 3rd. Supposedly, hitting the limiter should not cause anything over RR2, but in this one instance it did, as I plugged in Durametric the next morning and there is no other logical cause. I also have the spurious single ignition in RR4 and RR5, but not in 6. Have no clue how they arose, as they appeared after a very boring drive to the office where I was sat in a traffic jam for 2 hours! My concern is whatever causes these spurious entries happens again, and I build up entries in RR4, 5 and maybe 6, which are all errors but may put off a future seller (although will probably just give my cars to my son when I die!).
I agree - the data needs careful thought to help inform ones decision, it’s should not be the sole reason to make a decision (unless it’s overwhelming negative!)
Thank you for a really well presented and clear explanation of how to interpret this data.I’m glad you didn’t buy the Porsche off the boy racer.I’m not saying the engines shouldn’t be revved but not thrashed to destruction.
Awesome informative video, its very important to educate about this as everyone is into “manuals” without looking at this information. It would be good that you share a google drive file with the instructions on how to analyze the rev data using you excel
IK im kinda late ,but does it go away if you've only drive your car hard 3 to 4 times a year? i drive my car 2 times a week if even that. i drive my car gentle ,but sometimes I drive it hard to get all the carbon build up out of the exhaust system and keep the oil going. I just want to know what i'm doing is fine for the engine? car has 68k miles
I'm not sure I understand the question but the rev-range reports are stored permanently for the life of the car. In terms of being kind to the engine, keep the oil fresh, use premium fuel, ensure everything is warm before driving hard and continue to drive with mechanical sympathy. Enjoy!
My understanding is that because of the inertia resulting from the turbo spool, a 911 Turbo will always show more range1, 2 and even 3 counts than a naturally aspirated engine (ie, your other examples).
Hi Ohms; I didn’t know this off the top of my head so I needed to wait to check. The answer is no, you cannot see KM’s in the engine module or instrument cluster modules - only operating hours and average speed.
I'm sorry but LOL at this rev range fixation! The idea that a car has zero hits in range one is really concerning to me. Suggest a car that was never used properly. If I don't tap the rev limiter, it's because I didn't drive the car on that day. My 1999 996 is over 1700 hits in range one and is a happy boy! Edit: this came back across my recommended. I see I typed 1700 above... that should’ve been 17,000! FWIW, I’m now over 18,000 and counting. On a two range 996.1, the only way you’re hitting range 2 is with an accidental downshift i.e. skipped gear.
My advice - it is important to understand the theory first so that you can acknowledge an ‘over’ Rev and make an informed buying decision. Two short example from my own experience; I backed out of a 997 turbo purchase when I discovered the engine had just been buzzed. All the way to range 6 (past 9,000 rpm) within the last 5 hours of operation. 997 GT3’s on the other hand mostly have zero over revs as the first range doesn’t start until 9,000 rpm. That NA engine has a much higher limit of operation. As long as you know what’s in front of you it can be very helpful indeed.
What irks me about it the rev range log, is it's not as exact as one may think it would be, and not all buyers understand this in the way the presenter in the video does.
My 997 turbo has 5402 in RR1, as it should as I often chase it to the redline and change, but in RR3 I have 8 ignitions, and they relate to hitting the rev limiter as I was changing up from 2nd to 3rd. Supposedly, hitting the limiter should not cause anything over RR2, but in this one instance it did, as I plugged in Durametric the next morning and there is no other logical cause.
I also have the spurious single ignition in RR4 and RR5, but not in 6. Have no clue how they arose, as they appeared after a very boring drive to the office where I was sat in a traffic jam for 2 hours! My concern is whatever causes these spurious entries happens again, and I build up entries in RR4, 5 and maybe 6, which are all errors but may put off a future seller (although will probably just give my cars to my son when I die!).
I agree - the data needs careful thought to help inform ones decision, it’s should not be the sole reason to make a decision (unless it’s overwhelming negative!)
This is the best explanation of rev ranges!
Thanks! Glad it makes sense 😄
Thank you for a really well presented and clear explanation of how to interpret this data.I’m glad you didn’t buy the Porsche off the boy racer.I’m not saying the engines shouldn’t be revved but not thrashed to destruction.
Thank you for the positive comments Andrew!
This was a very informative video thank you
Thanks for the feedback and glad it was helpful!
Excellent video. Thank you very much for sharing this information, which is simply spectacular.
Thank you for the kind comment!
Thanks for the information. I have a 997T with 1 ignition in 4 and thought it was a bit odd.
You’re welcome, great to hear it’s useful !
Awesome informative video, its very important to educate about this as everyone is into “manuals” without looking at this information.
It would be good that you share a google drive file with the instructions on how to analyze the rev data using you excel
Glad it’s helpful and thanks for the feedback!
my 996 turbo shows 5/615.9 range2, about 0.013sec. im glad its not trashed. 2 sec on range1
glad it helped and you've bagged a good car!
Brilliant video, well explained. In the market for a 996 so this helped 👍
Glad it’s useful - in that case you might like to check out the buyers guide video too 👍
Great explanation really helpfull thanks👍🏼
Glad you liked it Erik, thanks for leaving a comment 👍
Amazing content
Thank you!
Very informative. Well done 👍
Thanks Roger
Great explanation. How difficult is it to learn to use the durametric diag tool?
The software is quite intuitive, I’ve never had any formal training with it and find my way around it no problem
@@TheThrottleCable thanks
IK im kinda late ,but does it go away if you've only drive your car hard 3 to 4 times a year? i drive my car 2 times a week if even that. i drive my car gentle ,but sometimes I drive it hard to get all the carbon build up out of the exhaust system and keep the oil going. I just want to know what i'm doing is fine for the engine? car has 68k miles
I'm not sure I understand the question but the rev-range reports are stored permanently for the life of the car. In terms of being kind to the engine, keep the oil fresh, use premium fuel, ensure everything is warm before driving hard and continue to drive with mechanical sympathy. Enjoy!
My understanding is that because of the inertia resulting from the turbo spool, a 911 Turbo will always show more range1, 2 and even 3 counts than a naturally aspirated engine (ie, your other examples).
Thanks, I think this and the fact you rush into the red line sooner are a combination for over-revs!
Excellent explanation, thank you. Could I ask, can duarametric also read the DME's total distance travelled log in KM?
Hi Ohms; I didn’t know this off the top of my head so I needed to wait to check. The answer is no, you cannot see KM’s in the engine module or instrument cluster modules - only operating hours and average speed.
@@TheThrottleCable That's great, thank you for checking.
apparently, Autel Maxisys MS908 can read Porsche Over Rev data too.
I don't know if Autel's less expensive Scan tool can read Over Rev data or not.
I’ve not heard of that unit myself - but great to hear we have multiple options!
@@TheThrottleCable
ruclips.net/video/cd9h6BRkxC0/видео.html
here is a video
super thanks
Hope it’s helpful! 👍
how about 11958 ignitions for range 1 and 7014 ignitions in range 2 for a 996 turbo, last range 2 ignition was at 2144h out of 2221h?
35 seconds in range 1, 20 seconds in range 2, has the car had a tune to raise its redline?
@@TheThrottleCable from what I know, no. it should be stock
I'm sorry but LOL at this rev range fixation! The idea that a car has zero hits in range one is really concerning to me. Suggest a car that was never used properly. If I don't tap the rev limiter, it's because I didn't drive the car on that day. My 1999 996 is over 1700 hits in range one and is a happy boy!
Edit: this came back across my recommended. I see I typed 1700 above... that should’ve been 17,000! FWIW, I’m now over 18,000 and counting. On a two range 996.1, the only way you’re hitting range 2 is with an accidental downshift i.e. skipped gear.
My advice - it is important to understand the theory first so that you can acknowledge an ‘over’ Rev and make an informed buying decision.
Two short example from my own experience;
I backed out of a 997 turbo purchase when I discovered the engine had just been buzzed. All the way to range 6 (past 9,000 rpm) within the last 5 hours of operation.
997 GT3’s on the other hand mostly have zero over revs as the first range doesn’t start until 9,000 rpm. That NA engine has a much higher limit of operation.
As long as you know what’s in front of you it can be very helpful indeed.