Shifting according to computer?

D_o_S · 08-01-2009, 08:16 AM

Hi,

is it good to shift according to the computer? As I see it, it tells you to shift as soon as you hit 1400 or 1500 rpms... is this OK? Will it not damage the engine if I rev it so low?

My dad suggested I shift at like 4k rpm... is that sensible?

Thanks.

Express · 08-01-2009, 08:41 AM

you better start in 3rd gear since you cant afford the gas.

D.B.S · 08-01-2009, 09:11 AM

Quote:

Originally Posted by express705

you better start in 3rd gear since you cant afford the gas.

We gonna continue down that road? Didn't we flame him enough in the other thread?

Express · 08-01-2009, 09:15 AM

no!!!!

xtac · 08-01-2009, 10:08 AM

Where does it tell you when to shift?

Peej · 08-01-2009, 10:40 AM

its ok as long as the engine is going smooth, just drive the shit out of it once in a while

ilidon · 08-01-2009, 11:19 AM

that's too low... i think over 2k rpm is enough but the the perfect range for easy driving somewhere between 2.5k to 3k.

MisterSkiMask · 08-01-2009, 11:24 AM

Quote:

Originally Posted by D_o_S

Hi,

is it good to shift according to the computer? As I see it, it tells you to shift as soon as you hit 1400 or 1500 rpms... is this OK? Will it not damage the engine if I rev it so low?

My dad suggested I shift at like 4k rpm... is that sensible?

Thanks.

You must have an auto, just be light on the gas pedal and let the computer sort it out.

D_o_S · 08-01-2009, 03:23 PM

Quote:

Originally Posted by express705

you better start in 3rd gear since you cant afford the gas.

Lol

Quote:

Originally Posted by Army335xi

We gonna continue down that road? Didn't we flame him enough in the other thread?

TY.

Quote:

Originally Posted by MisterSkiMask

You must have an auto, just be light on the gas pedal and let the computer sort it out.

Um, no.

There is an upshift indicator on the board computer, it has two arrows when you're OK, when you should shift in either direction, it visually indicates by hiding one arrow and telling you which gear you're supposed to be in.

SoCalTech · 08-01-2009, 03:27 PM

Drive by feel and listen to what the engine is telling you.

blue2fire · 08-01-2009, 03:28 PM

That is one of those Efficient Dynamics feature to help you save petrol. I would follow it.

VTECaddict · 08-01-2009, 03:37 PM

Follow it when you want to save fuel. Shift at higher RPM when you want more acceleration.

4k rpm is not sensible unless you are going for some semi-aggressive acceleration. It would also waste a lot of gas.

cstavaru · 08-01-2009, 05:24 PM

YES, you should shift when the computer tells you. This is a different engine, the older shifting habits do not apply !

The computer indicates shifting at 1800 RPM. This way, after shifting your RPM will be 1300-1400, which is the minimum RPM for the maximum torque, so the car mileage is maximum there.

The automatic gearbox also shifts at < 2000RPM (in D mode).

From my experience, in a busy town you just cannot shift the 335i at > 3000RPM, and even this is too much. There is too much power involved and the car will just snap forward instead of behaving civilised.

xtac · 08-01-2009, 06:06 PM

Can someone take a picture of link me to where it tells you to shift? odd I never noticed it

VTECaddict · 08-01-2009, 08:47 PM

I don't think the gear shift indicator is implemented in US cars yet.

xtac · 08-01-2009, 11:51 PM

Quote:

Originally Posted by VTECaddict

I don't think the gear shift indicator is implemented in US cars yet.

Ahh figures, still like to see it in action if someone can post a pic or video

VTECaddict · 08-02-2009, 01:13 AM

Here it is on a 120i

[u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/mz2CDonpz0k&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/mz2CDonpz0k&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/u2b]

Manos · 08-02-2009, 03:09 AM

I drove the new Z4 in Austria and it had the indicator in the top left of that screen. And it was way smaller than those numbers in the video.
It bugged the crap out of me though. I don't want someone else telling me when to shift, let alone the car itself. I've been driving for over 10 years and I think I'm qualified enough to make my own decisions.

cstavaru · 08-02-2009, 06:55 AM

The indicator is way smaller on 09 335i.

xtac · 08-02-2009, 10:03 AM

Quote:

Originally Posted by VTECaddict

Here it is on a 120i

[u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/mz2CDonpz0k&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/mz2CDonpz0k&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/u2b]

As a newbie driver it would be interesting to drive the way it tells you to see if it just improves me. I wonder if we can do a software upgrade for it to tell us this for usa cars.

srcstc · 08-02-2009, 11:02 AM

Quote:

Originally Posted by D_o_S

Hi,

is it good to shift according to the computer? As I see it, it tells you to shift as soon as you hit 1400 or 1500 rpms... is this OK? Will it not damage the engine if I rev it so low?

My dad suggested I shift at like 4k rpm... is that sensible?

Thanks.

4k rpm in 1st?? I rarely hit that in any gear under normal driving and I drive pretty fast. I usually shift out of first under 2k.

08-01-2009, 08:16 AM	#1
D_o_S LCI'd 257 Rep 819 Posts Drives: 335i LCI Join Date: Feb 2008 Location: Home iTrader: (1)	Shifting according to computer? Hi, is it good to shift according to the computer? As I see it, it tells you to shift as soon as you hit 1400 or 1500 rpms... is this OK? Will it not damage the engine if I rev it so low? My dad suggested I shift at like 4k rpm... is that sensible? Thanks.
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08-01-2009, 08:41 AM	#2
Express Major General 369 Rep 8,693 Posts Drives: 06 330i Join Date: Dec 2008 Location: The Promise Land iTrader: (17) Garage List 2006 BMW 330i [8.30]	you better start in 3rd gear since you cant afford the gas.
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08-01-2009, 09:15 AM	#4
Express Major General 369 Rep 8,693 Posts Drives: 06 330i Join Date: Dec 2008 Location: The Promise Land iTrader: (17) Garage List 2006 BMW 330i [8.30]	no!!!!
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08-01-2009, 10:08 AM	#5
xtac Captain 155 Rep 780 Posts Drives: 17 F80 Comp Join Date: Jan 2009 Location: Long Island iTrader: (2)	Where does it tell you when to shift?
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08-01-2009, 10:40 AM	#6
Peej Private 1 Rep 98 Posts Drives: VW Golf 3 Cab. Join Date: Jan 2008 Location: The Netherlands iTrader: (0)	its ok as long as the engine is going smooth, just drive the shit out of it once in a while
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08-01-2009, 11:19 AM	#7
ilidon Major 59 Rep 1,036 Posts Drives: F13 M6 Join Date: Dec 2008 Location: L.I., NY iTrader: (10) Garage List 2009 335i [7.00]	that's too low... i think over 2k rpm is enough but the the perfect range for easy driving somewhere between 2.5k to 3k. __________________ F13 ///M6 SMB/SO E92 ///M3 AW/FR- Sold E92 335i MB/BLK- Sold [IMG]http://www.bimmerpost.com/forums/attachment.php?attachmentid=133578
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08-01-2009, 03:27 PM	#10
SoCalTech Captain 24 Rep 648 Posts Drives: Not a BMW yet... Join Date: Oct 2008 Location: Redondo Beach, Ca iTrader: (0)	Drive by feel and listen to what the engine is telling you.
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08-01-2009, 03:37 PM	#12
VTECaddict Where'd my VTEC go? 481 Rep 6,067 Posts Drives: 06 330i 6MT Join Date: Mar 2009 Location: Seattle, WA iTrader: (4)	Follow it when you want to save fuel. Shift at higher RPM when you want more acceleration. 4k rpm is not sensible unless you are going for some semi-aggressive acceleration. It would also waste a lot of gas. __________________ AW/Terra \| ZSP \| ZPP \| ZCW \| iDrive \| CA Mods: BC BR coilovers \| Blacklines \| M-tech rear \| dual exhaust \| M3 steering wheel \| BMW SSK \| ZHP shift knob \| High-kick CF spoiler \| NBT Retrofit M3 front control arms \| M3 rear guide rods \| Manzo rear toe and camber links \| Monroe rear shock mounts \| Varrstoen ES1 19x9.5+20 Front, 19x11+25 rear
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08-01-2009, 05:24 PM	#13
cstavaru Brigadier General 313 Rep 3,262 Posts Drives: 2009 335i M Sport Sedan 6MT Join Date: Aug 2008 Location: Bucharest, Romania iTrader: (0)	YES, you should shift when the computer tells you. This is a different engine, the older shifting habits do not apply ! The computer indicates shifting at 1800 RPM. This way, after shifting your RPM will be 1300-1400, which is the minimum RPM for the maximum torque, so the car mileage is maximum there. The automatic gearbox also shifts at < 2000RPM (in D mode). From my experience, in a busy town you just cannot shift the 335i at > 3000RPM, and even this is too much. There is too much power involved and the car will just snap forward instead of behaving civilised. __________________ Mods(click): Cobb + RB Turbos \| Aquamist HFS-4 Meth \| Drexler LSD \| Bilstein B12 Pro-Kit \| Custom K&N Apollo Intake \| Wagner Intercooler \| Macht Schnell Downpipes \| BMW Performance Power Kit \| BMW Performance Exhaust \| BMW Performance Short Shifter \| M3 Subframe Bushings \|
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08-01-2009, 06:06 PM	#14
xtac Captain 155 Rep 780 Posts Drives: 17 F80 Comp Join Date: Jan 2009 Location: Long Island iTrader: (2)	Can someone take a picture of link me to where it tells you to shift? odd I never noticed it
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08-01-2009, 08:47 PM	#15
VTECaddict Where'd my VTEC go? 481 Rep 6,067 Posts Drives: 06 330i 6MT Join Date: Mar 2009 Location: Seattle, WA iTrader: (4)	I don't think the gear shift indicator is implemented in US cars yet. __________________ AW/Terra \| ZSP \| ZPP \| ZCW \| iDrive \| CA Mods: BC BR coilovers \| Blacklines \| M-tech rear \| dual exhaust \| M3 steering wheel \| BMW SSK \| ZHP shift knob \| High-kick CF spoiler \| NBT Retrofit M3 front control arms \| M3 rear guide rods \| Manzo rear toe and camber links \| Monroe rear shock mounts \| Varrstoen ES1 19x9.5+20 Front, 19x11+25 rear
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08-02-2009, 01:13 AM	#17
VTECaddict Where'd my VTEC go? 481 Rep 6,067 Posts Drives: 06 330i 6MT Join Date: Mar 2009 Location: Seattle, WA iTrader: (4)	Here it is on a 120i [u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/mz2CDonpz0k&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/mz2CDonpz0k&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/u2b] __________________ AW/Terra \| ZSP \| ZPP \| ZCW \| iDrive \| CA Mods: BC BR coilovers \| Blacklines \| M-tech rear \| dual exhaust \| M3 steering wheel \| BMW SSK \| ZHP shift knob \| High-kick CF spoiler \| NBT Retrofit M3 front control arms \| M3 rear guide rods \| Manzo rear toe and camber links \| Monroe rear shock mounts \| Varrstoen ES1 19x9.5+20 Front, 19x11+25 rear
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08-02-2009, 03:09 AM	#18
Manos Private 11 Rep 95 Posts Drives: E91 330xi Join Date: Jun 2009 Location: Sweden iTrader: (0) Garage List 2006 330xi (E91) [0.00]	I drove the new Z4 in Austria and it had the indicator in the top left of that screen. And it was way smaller than those numbers in the video. It bugged the crap out of me though. I don't want someone else telling me when to shift, let alone the car itself. I've been driving for over 10 years and I think I'm qualified enough to make my own decisions. __________________
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08-02-2009, 06:55 AM	#19
cstavaru Brigadier General 313 Rep 3,262 Posts Drives: 2009 335i M Sport Sedan 6MT Join Date: Aug 2008 Location: Bucharest, Romania iTrader: (0)	The indicator is way smaller on 09 335i. __________________ Mods(click): Cobb + RB Turbos \| Aquamist HFS-4 Meth \| Drexler LSD \| Bilstein B12 Pro-Kit \| Custom K&N Apollo Intake \| Wagner Intercooler \| Macht Schnell Downpipes \| BMW Performance Power Kit \| BMW Performance Exhaust \| BMW Performance Short Shifter \| M3 Subframe Bushings \|
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