|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Has anyone contacted BMW regarding 29.2 and lag?
|
|
11-05-2008, 03:18 PM | #2663 |
Second Lieutenant
15
Rep 235
Posts |
sorry if this has been anwered. i couldn't get through the whole thread.
will Dinan, Procede, JB3 tunes be affected by this? thanks for your patience
__________________
cosmetic mods - BBS LM's, body colored reflectors, 30% tint
permormance mods - procede rev II, vishnu dci, helix fmic, ar catless dp's |
Appreciate
0
|
11-05-2008, 03:34 PM | #2664 |
blaupunkt
56
Rep 525
Posts
Drives: 2008 335xi 6spman montego
Join Date: Jan 2006
Location: THE REGION
|
noob...at least when you test drive a Lexus or a whatever you replace your BMW with you will get what you test drive. No strings attached. With a BMW its like a box of chocolates. "you never know what your gunna get" This is my 9th BMW and certainly my last. BMW has pulled the rug out from under us and has lied and de tuned a 50k car without explanation. You like apples, how do you like them apples.
__________________
BMW ENGINEERS |
Appreciate
0
|
11-05-2008, 03:35 PM | #2665 | |
Lieutenant General
4972
Rep 10,200
Posts
Drives: 2024 Golf R / 2022 718 Spyder
Join Date: Sep 2006
Location: Dallas, TX
|
Quote:
The Dinan flash is exactly that--a flash of your car's CPU--so the software version you have on it at the time of the flash shouldn't matter. I am not sure about how it works if you go to the dealer and receive a software update. The Procede has a specific way to deal with the lag, I believe. The JB3 doesn't address the lag specifically, but coming from someone who has one, the car feels a lot better. I don't notice the lag as much, but this has not been the experience of other JB3 owners with the 29.2+ software. Hope that helps.
__________________
Past rides: 2016 981 BGTS, 2020 MINI JCW, 2017 F80, 2015 981 CS, 2014 F22 235, 2011 E82 135, 2008 E82 135, 2007 E92 328, 2007 E92 328 (My lady drives an OG M2. So does my dad)
|
|
Appreciate
0
|
11-05-2008, 03:37 PM | #2666 | |
blaupunkt
56
Rep 525
Posts
Drives: 2008 335xi 6spman montego
Join Date: Jan 2006
Location: THE REGION
|
Quote:
Who did you get the info from and what dealer did you talk to. PM me if you dont want to expose the info on this thread. I would like to hear this info myself. Thank you Tschuss....RB
__________________
BMW ENGINEERS |
|
Appreciate
0
|
11-05-2008, 03:41 PM | #2667 | |
blaupunkt
56
Rep 525
Posts
Drives: 2008 335xi 6spman montego
Join Date: Jan 2006
Location: THE REGION
|
Quote:
...Sorry friend, not my question
__________________
BMW ENGINEERS |
|
Appreciate
0
|
11-05-2008, 03:45 PM | #2668 | |
Lieutenant General
4972
Rep 10,200
Posts
Drives: 2024 Golf R / 2022 718 Spyder
Join Date: Sep 2006
Location: Dallas, TX
|
Quote:
The whole bait and switch really pisses me off as well--more so than the reduced perfomance.
__________________
Past rides: 2016 981 BGTS, 2020 MINI JCW, 2017 F80, 2015 981 CS, 2014 F22 235, 2011 E82 135, 2008 E82 135, 2007 E92 328, 2007 E92 328 (My lady drives an OG M2. So does my dad)
|
|
Appreciate
0
|
11-05-2008, 03:47 PM | #2669 |
Captain
47
Rep 723
Posts |
Very short review of 2009 E90 335
The car I drove was 2009 e90 335i (non-sport, 6at, no paddles, premium, winter). My daily driver is 2007 e90 335i sport 6at w/ paddles. My car was updated to 29.2 in May.
I know a lot of you guys are fed up with this lag issue and probably dont care much how the 2009 car compares. That's understandable, so please feel free to ignore this post...my lease is up and I was curious to know if the 2009 was less laggy...so I drove one. It's hard to tell on a short test drive. But, the power delivery of the 2009 car was definately "different". I wonder if maybe the fact that the car was non-sport was fooling me...i.e. maybe the effect of the suspension compressing more under accelleration may have made it feel more powerful down low. With the car warmed up to 250-255, I tried a few pulls from 1500-1700rpm in 2nd gear up to "at least 4500rpm" . The power seems to be coming on smoother than my 2007, but it didnt feel like 300lbs and I'm not sure that the lag is gone...just manifesting in a different way maybe? Hard to describe. Its almost like the throttle-response is a lot better but the torque is not really coming on until about 2.5k or 3k. The 2009 power is coming on smoother and the lag seems a bit less noticeable. It did not seem to be quite up to par with what I remember before 29.2. But, again it's hard to tell from a 20 mile test-drive. I also tried a pull from about 2k in 4th gear on the highway...seemed to take forever to make power hard to tell. I need to spend a day or so with the car to really get a feel for it. Other random comments: 1) The car was SG but looked A LOT lighter. It looked like it was about half way between SG and Ti silver. It's probably just my screwed up eyeballs, but that surprised me...I've seen lots of SG cars so I thought I knew what SG looked like... 2) CA said there are no 2-year leases as of now...wierd. |
Appreciate
0
|
11-05-2008, 04:02 PM | #2670 | |
Second Lieutenant
15
Rep 235
Posts |
Quote:
Thank you.
__________________
cosmetic mods - BBS LM's, body colored reflectors, 30% tint
permormance mods - procede rev II, vishnu dci, helix fmic, ar catless dp's |
|
Appreciate
0
|
11-05-2008, 04:39 PM | #2671 |
Major
94
Rep 1,184
Posts |
Hi
I have e93 2007 pre 29.2 335i but upgraded with last firmware... so now turbo lag Here in europe as well no way to have an hardware solution and back to old firmware. But i did a little modification to reduce the turbo lag: Simply bypass the left (the most close to rear of car) boost control solenoid by simply disconnecting the small pipes and connecting them together. This mod is reversible and invisible. It will close partially the wasgates at idle... No failure codes, running this since 2 weeks now. Try and let me know.... |
Appreciate
0
|
11-05-2008, 04:44 PM | #2672 | |
former N54 owner
11
Rep 607
Posts |
Quote:
__________________
+lemon
|
|
Appreciate
0
|
11-05-2008, 04:47 PM | #2673 | |
No military grade
58
Rep 619
Posts |
Quote:
Just my 2 cents. |
|
Appreciate
0
|
11-05-2008, 05:16 PM | #2674 | |
Private
2
Rep 57
Posts |
Quote:
http://www.realoem.com/bmw/showparts...75&hg=11&fg=45 Note that they are NOT independent vacuum circuits. See the straight tubing between the two tees that joins them. Since rumor has it that the rear is the one kept open longer, moving control of both to the front may just work.
__________________
Tom
2021 M240i Convertible Returned: 2008 335i E93, sold 2011 535i M-Sport |
|
Appreciate
0
|
11-05-2008, 05:20 PM | #2675 |
Major
94
Rep 1,184
Posts |
I will post pictures tomorrow.
If you look carefully at the small pipes, the 2 wasgate actuators are connected together with tee adapter and the 2 boost control solenoid are in parallel to control both actuators at the same time. bypassing one of these brings some more vacuum to the actuators and half close wasgates of both turbos. The second solenoid stays in the circuit to control the wasgates when boost pressure is reached. DME still can control boost and don't goes to limb mode. maybe a failure code is stored in the ECU, when I go to dealer I can clain that problems are still there... now turbo lag is less but rattle is again there. |
Appreciate
0
|
11-05-2008, 05:28 PM | #2676 | |
No military grade
58
Rep 619
Posts |
Quote:
But you will generate more boost by your mod, which could trigger a hidden failure code and could also damage the engine. It's just not asymetric as I assumed. Nice trick to gain boost, though... |
|
Appreciate
0
|
11-05-2008, 05:31 PM | #2677 |
Lieutenant Colonel
136
Rep 1,954
Posts
Drives: 2020 X3M Competition
Join Date: Mar 2007
Location: Los Angeles, CA
|
procede v1, aa xede and processor, jb, and helix, all use this very same "solenoid bypass" method
|
Appreciate
0
|
11-05-2008, 05:41 PM | #2678 |
Major
94
Rep 1,184
Posts |
I think there are 2 solenoid in parallel for security reasons, in case one is not working the other can still control somehow.
I have tested that bypassing the rear one closes the wasgates more than bypassing the front one. Another thing: the 2 solenoids receive vacuum from an individual vaccum accumulator (the 2 round cylinders near the cooling liquid tank) but this vacuum comes from the same vacuum pump (just follow the pipes to see). BMW created 2 separate vacuum lines that connects together with a tee before the actuators, to have redundancy in case of failure of pipes and solenoids. At least this is one of the reasons I can imagine. if boost is too high the DME goes in limb mode and prevents engine damage by closing the throttle valve and reducing fueling. I tested this shortly and accelerating carefully, after bypassing both solenoids. then after 3500rpm there is message on display: disfunction of engine, power is reduced. car goes slow, and only after power off power on it goes again. BUT in this case the turbolag at low rpm (below 3000) is comletely gone |
Appreciate
0
|
11-05-2008, 06:14 PM | #2679 |
Does not play well with others
80
Rep 1,787
Posts |
Interesting about the solenoids and also the fact that the tunes bypass them as well.
Kind of bizarre that the owners of the cars are the ones trying all these things out on thier own cars attempting to fix a problem they shouldnt even have.( and BMW themselves cant seem to fix) Ezat, that was me with the rain question, but it is not the wheels, it will do this not only when pulling away but also when already moving. Doesnt need WOT, just cruising along and the power dips a bit and comes back.
__________________
|
Appreciate
0
|
11-05-2008, 06:32 PM | #2680 |
Brigadier General
313
Rep 3,262
Posts |
Ok, let me share my experience on this. I have a 2009 335i sedan M Sport (european spec).
I have never drove a pre-29.2 car before, but I can tell you that BMW changed something. Otherwise the magazines were not raving about the car. Because right now, until 3000RPM the engine is not mind-blowing at all. Don't get me wrong. There is no lag whatsoever. The throttle response is immediate and powerful. But not powerful as I feel it could be. I am convinced BMW deliberately reduced the torque at low revs. And since the 2009 facelift is a pretty major one, if they had hardware problems requiring detuning they would have solved the problem for the 2009 model. But they didn't. Which I think is a sign that they want it to remain like this. And why would this be ? Maybe because if you test drove a 335i and after this an M3, you wouldn't bought the M3 anymore since in Europe si exactly 55% more expensive than the 335i ? |
Appreciate
0
|
11-05-2008, 08:00 PM | #2681 | |
Second Lieutenant
4
Rep 216
Posts
Drives: 2008 - 335i - Cobb stg 1
Join Date: May 2008
Location: Very Hot, Humid, Southeast
|
Quote:
Do you think the 335i is the fastest / best car on the road? I really liked the mix (price / performance / design / expected reliability / etc) as purchased. They've changed my long-term expectations and damaged their reputation with me. I'm just pointing out that all this 29.x / Lag stuff eroded my enthusiasm and I won't be buying another BMW. If BMW has to modify the software to protect the hardware, that makes we worry about long term reliability. For me, its mostly hassle, not cost, given I'll mainly be driving the car under warranty. I'm not saying my future lexus is better than anyone's car, just given my feelings now, it would be better for me... Last edited by BmwFanFL; 11-05-2008 at 08:19 PM.. |
|
Appreciate
0
|
11-05-2008, 08:02 PM | #2682 |
Second Lieutenant
4
Rep 216
Posts
Drives: 2008 - 335i - Cobb stg 1
Join Date: May 2008
Location: Very Hot, Humid, Southeast
|
|
Appreciate
0
|
11-05-2008, 11:52 PM | #2683 | |
solid @ 153, no, 155mph!
15
Rep 335
Posts |
Quote:
|
|
Appreciate
0
|
11-06-2008, 05:14 AM | #2684 | |
Colonel
184
Rep 2,320
Posts |
Quote:
or u need to keep an eye on bmw mechanics what they do with your car
__________________
E92 335i Black Saphire 6MT PROcede V5, BMS DCI, Big Tom IC, AR CL-DP's 3", AR Design OC, Forge DV's, OEM M3 side skirts, BMW Performance Wheels 19 inch 269 Black Gloss+Continental ContiSportContact 5P (400hp and 550nm) https://www.youtube.com/user/aistis7..._as=subscriber
|
|
Appreciate
0
|
Bookmarks |
|
|