|
|
10-09-2009, 08:39 PM | #89 | |
Major
100
Rep 1,035
Posts |
Quote:
__________________
|
|
Appreciate
0
|
10-09-2009, 09:11 PM | #90 |
Enlisted Member
5
Rep 37
Posts |
How can an over rev happen with the fuel cut off kicking in? I thought the only way to over rev our engines was to say, shift from 6th gear to 2nd at like 100km causing a mechanical over rev situation. Can't we bang off the rev limiter all day long without damaging the engine when the original stock ecu tuning is still present?
I realize that in this case the car has a DTC transmission and the ecu should not allow the 6th to 2nd gear shift to protect the engine and transmission.
__________________
350Z Sold
335i Sold 2009, E92, M3, AW Sold 2014 Cayman S Last edited by 335i2007; 10-09-2009 at 09:34 PM.. |
Appreciate
0
|
10-09-2009, 09:37 PM | #91 | |
yodog
197
Rep 5,026
Posts |
Quote:
__________________
2009 E92 M3 | Alpine White | Black Extended | Advan RS | Turner Test Pipes | Dinan Axle-Back | OETuning | Eibach Springs | UUC SSK | VRS Front Lip | VRS Type I Diffuser | Matte Black | RPi Scoops | MS Filter | Yokohama AD08 | F1 Pinnacle Special Thanks: Gintani | OETuning | eAs |
|
Appreciate
0
|
10-09-2009, 09:54 PM | #92 | |
Captain
36
Rep 625
Posts |
Quote:
I am quite surprised such a thing could screw this engine. It has a shorter stroke, and thus less piston speed, than the 3.2L in the E46 M3 that revs nearly as fast. Final comment: Given the relatively modest gains that a tune provides, I do not think it is worth tuning this engine. BMW told me it would have cost me $25K for a new engine!
__________________
Driving sideways: It's not faster, but damn it's more fun!
|
|
Appreciate
0
|
10-10-2009, 05:19 AM | #93 |
Brigadier General
2511
Rep 4,381
Posts |
|
Appreciate
0
|
10-10-2009, 05:33 AM | #94 |
yodog
197
Rep 5,026
Posts |
Once you hit 8400rpm the fuel cuts. When I'm trying to go fast I shift at 8300 because when I shift at 8400 I hit the fuel cutoff and my car bogs.
__________________
2009 E92 M3 | Alpine White | Black Extended | Advan RS | Turner Test Pipes | Dinan Axle-Back | OETuning | Eibach Springs | UUC SSK | VRS Front Lip | VRS Type I Diffuser | Matte Black | RPi Scoops | MS Filter | Yokohama AD08 | F1 Pinnacle Special Thanks: Gintani | OETuning | eAs |
Appreciate
0
|
10-10-2009, 07:55 AM | #95 |
Major
178
Rep 1,432
Posts |
Is it me or those with serious engine problems tends to be 08 models? I kinda notice the freqency is very high with 08 cars. ????
__________________
2018 F80 LCI II ZCP ///M3 Mineral White M-DCT| Sakhir Orange Interior| |M Performance Exhaust| |
Appreciate
0
|
10-10-2009, 03:13 PM | #96 |
Lieutenant
16
Rep 473
Posts |
My08 cut off fuel and turned off. I was in first and didn't shift to second. I hit the clutch and stalled with only 1000 miles on the od... 15k miles later no problem. But the funny thing is my car is a 12.4 quarter mile car. I guess I broke it in good. With a pulley and filter. At the strip 12.4 to 12.7. Tune is nice but not worth the problems that it may cause!!!!
|
Appreciate
0
|
10-10-2009, 03:17 PM | #97 | |
Major
27
Rep 1,314
Posts |
Quote:
To my knowledge, there is no evidence that the S65 is different between model years. Thus, a year from now, if there is a problem, one would expect to see it in equal proportions in the 09s.
__________________
|
|
Appreciate
0
|
10-10-2009, 04:15 PM | #98 | |
Major General
374
Rep 8,033
Posts |
Quote:
angular acceleration = T/I I (moment of inertia) of the drivetrain, including the flywheel, simply affects the magnitute of the acceleration when there is net positive torque. If there is no combustion, there is no net positive (produced - drivetrain friction - external load) torque, and no angular acceleration of drivetrain components. For an engine rotating in neutral, there is no external load, but there is drivetrain friction, so the net torque is negative the moment fuel is cut off, and whatever rotating mass is connected to the crankshaft will decelerate.
__________________
|
|
Appreciate
0
|
10-10-2009, 05:38 PM | #99 | |
Major General
258
Rep 5,012
Posts |
Quote:
Are you surprised 8,700 rpm screwed your engine??? I'm not. I do agree with that. Take care. |
|
Appreciate
0
|
10-10-2009, 07:09 PM | #100 |
Major General
890
Rep 9,032
Posts |
You guys need one of these to clear codes... if they made one for our engines.
http://www.n54tuning.com/index.php?_...d&productId=22
__________________
Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
|
Appreciate
0
|
10-11-2009, 03:00 PM | #101 |
Lieutenant Colonel
65
Rep 1,676
Posts |
very sorry to hear this
that is why i have always used Dinan's software on my last 2 M's and on this one
__________________
Street- 08 E92 M3- Sparkling Graphite/ Fox Red/6sp
Track- 10 CRF 250-PR2 Race Motor/Ohlins TTX Susp Hauler- 06 Ford Skyjacker F250 4WD |
Appreciate
0
|
10-11-2009, 05:10 PM | #102 |
DUSTOFF: ALL BALLS, NO GUNS!!!
11
Rep 110
Posts |
The moral of the story is don't alter your freaking car is you expect BMW to cover it if it breaks. It makes perfect sense to me. If you feel the burning desire to modify a proven and safe design from the factory, be prepared to pay in the event of a catastrophic failure.
|
Appreciate
0
|
10-11-2009, 06:49 PM | #103 | |
Lieutenant Colonel
65
Rep 1,676
Posts |
nope not confused. after 3 modded M cars i know what was covered and what wasn't while i watched others just have issues.
now you say dinan may have covered it, well they never gave me a hard time and i wouldn't of known the difference so that is good warranty to me. people love to slam dinan but after 3 dinan cars and no issues with warranty, but hey i been wrong before i won't agrue on the matter bc it is pointless people can believe what they want thanks Quote:
__________________
Street- 08 E92 M3- Sparkling Graphite/ Fox Red/6sp
Track- 10 CRF 250-PR2 Race Motor/Ohlins TTX Susp Hauler- 06 Ford Skyjacker F250 4WD |
|
Appreciate
0
|
10-11-2009, 10:28 PM | #105 | |
Major General
258
Rep 5,012
Posts |
Quote:
You'd be wise to assume you'd have no warranty from Dinan or anybody else if you decide to tune your car, because that's probably the reality. Yeah, it's a very small chance of something catastrophic happening, but the odds are there. |
|
Appreciate
0
|
10-11-2009, 10:28 PM | #106 | |
One mod leads to another ...
416
Rep 2,900
Posts |
Quote:
__________________
Current: 2014 F10 M5 Previous: 2015 F80 M3, 2013 E92 M3, 2013 F10 M5, 2009 E90 M3, 1998 E36 M3 |
|
Appreciate
0
|
10-11-2009, 10:40 PM | #107 |
Major General
374
Rep 8,033
Posts |
Dinan can't even send me a $150 rebate check they owe me since May. I find it hard to believe they would fork over thousands for an engine rebuild because of a bent valve. The chances are nobody would own such a problem since it is probably technically almost impossible to prove what caused what exactly based on a single failure. If the majority of Dinan tunes ended up with bent valves, it might be a different story, but then, they'd probably simply go bankrupt!
__________________
|
Appreciate
0
|
10-11-2009, 11:29 PM | #108 |
Proove It!
39
Rep 618
Posts |
I really dont think ur tune did this, but BMW can void ur warranty for messing or "tamperring" with ur DME. In fact thats prob. one of the only areas where u could never win a case with them because thats the key module in this vehicle. Its literally connected in some way to every module and sensor on this vehicle. So they can blame any other problem they want to on ur tune from now on.
Good luck with ur fix...Off topic but I remember a few S54s had this problem as well back when they were somewhat new. Except most of those cases were from over reving which can b easily seen by BMW.
__________________
|
Appreciate
0
|
10-12-2009, 12:09 AM | #109 |
Captain
50
Rep 783
Posts |
I was told by my BMW SA that when they run a diagnosis on the car, all information is sent back to a central system in BMW Germany automatically for analysis and storage.
So avoid getting any diagnosis run on the car if you want to hide the fact you have an aftermarket tune. I was also told by an Independent BMW Workshop mechanic that the ECU track if the software has been flashed or not - upon discussion of this with an aftermarket tuner, they informed me that only a major software upgrade is tracked and reprogramming a few tables in the DME is not tracked. Also out of interest your major software revision can only be upgraded 13 times, however an ECU reflash can happen as many times as possible. Finally the M3 engine management systems have cryptographically signed data that uses the RSA public/private key technologies similar to what is used with SSL certificates on the Internet - however the aftermarket tuners have found some way to trick this system. |
Appreciate
0
|
10-12-2009, 12:36 AM | #110 | |
Lieutenant Colonel
65
Rep 1,676
Posts |
no offense but no i never needed a new engine. my Dinan cars never gave me any trouble like other modded cars give. i had 80,000 miles on my Dinan S2 M5 and 65,000 miles on my Dinan S2 M3.
Quote:
__________________
Street- 08 E92 M3- Sparkling Graphite/ Fox Red/6sp
Track- 10 CRF 250-PR2 Race Motor/Ohlins TTX Susp Hauler- 06 Ford Skyjacker F250 4WD |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|