05-20-2012, 09:32 PM | #1 |
Lieutenant Colonel
115
Rep 1,511
Posts |
max power 2nd gear & up? (torque management)
Quick question... does the computer in the X3 restrict full engine power in 1st gear like some of the sport motorcycles.
The reason I ask is that when I have the car in sport mode with the shifter in DS the car REALLY accelerates much quickly after hitting 2ng gear. I don't know if it is just my perception. Last edited by lbjgh; 05-21-2012 at 12:36 PM.. |
05-21-2012, 05:15 AM | #3 |
Lieutenant Colonel
45
Rep 1,876
Posts |
It think it may be a combination of having gotten the vehicle moving, switching to second gear, and around the same time the engine speed getting to the point where the turbo has kicked in and is starting to have an effect.
__________________
|
Appreciate
0
|
05-21-2012, 09:45 AM | #6 |
Captain
72
Rep 875
Posts |
Unfortunately Torque Management is pretty common these days. Google Torque Mangement Removal for some info. Basically this is done for several reasons (healthy drive train, better mpg, safer, etc...).
While I can't comment on any TM BMW may be applying I do know we deal with it on a regular basis in the Chevy truck world. We have tuners that can specifically program it out or reduce it through out the gears. With TM removed it is very rare to see someone come back and complain. Might want to ask the same question over in the F10 forum, basically anywhere with a more established ZF 8spd / N55 combo. Keep in mind, with the 8 spd the gears are much closer together and 1st gear is pretty short, at full throttle you'll burn thru 1st in seconds. |
Appreciate
0
|
05-21-2012, 09:49 AM | #7 | |
Captain
72
Rep 875
Posts |
Quote:
When I'm playing around on the back roads I like to keep my rpms up around 4k. This gives great throttle response, especially when I'm in 3rd or 4th. Occasionally I'll turn EDC off and hit a corner in 2nd to get the rear end to step out a little bit. Your best bet is to play around and see what you and the X3 are comfortable with. |
|
Appreciate
0
|
05-21-2012, 11:06 AM | #8 | |
Lieutenant Colonel
115
Rep 1,511
Posts |
Thanks n55x3.
I googled "torque management" and you are right it is a common discussion point for many brands. I'm not looking to change anything on my car... just wondering. Quote:
|
|
Appreciate
0
|
05-21-2012, 12:00 PM | #9 | |
Major
402
Rep 1,174
Posts
Drives: 2020 F97 X3M
Join Date: Jan 2010
Location: SoFla/ATL
|
Quote:
ECU programming...I have had (4) N63 TTV8's one DINAN tuned all with the 8speed ZF transmission. From the factory they all appear to exhibit a less aggressive 1st gear, with stronger acceleration from 2nd gear onward ( the exception being the sport auto in my F12 650i which was strong in all gears). Even the stage 1 DINAN flash exhibited the same characteristics which I understand was rectified with Stage 2. Full Boost in 1st gear isn't for everyone Just my two cents
__________________
2011 MINI CooperS BRGII/Lounge Green/Sport/Prem/Connect/Black Xenon/Black Conical Spokes/ACS springs/ACS exhaust/Alta Shorty/Yokohama Advan Sport A/S
2012 M3 AW/FR NDH2/2MK/ZPP/ZCP/ZCW/752/6NR/OEM CF splitters/OEM CF Mirror caps (retired) 2012 X3 35i Titanium Silver/Black ZAP/ZPP/TECH/APPS/Breyton GTS (retired) 2018 X3 M40i BSM/Oyster/ZPP/ZPX/HK/S6CPA/718M(retired) |
|
Appreciate
0
|
05-21-2012, 08:49 PM | #10 |
Lieutenant Colonel
45
Rep 1,876
Posts |
Yes.
__________________
|
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|