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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > Anyone try the new Z370 with automatic rev matching?



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      01-08-2009, 06:23 PM   #1
Ramos
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Anyone try the new Z370 with automatic rev matching?

Not even sure it's out yet.. But I am very curious about the technology...
Car and driver said it works perfectly and can also be disabled via a button.
Basically this is a full on manual that rev matches on downshifts for you..
No need to heel and toe with this technology.. Any chance BMW will copy this?
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      01-08-2009, 06:32 PM   #2
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I hope they DONT!!!!!!!!!!!!!
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      01-08-2009, 06:38 PM   #3
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i really wanna see this at work...i dont get it can u just pop the clutch out for downshifts? like i dont understand really
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      01-08-2009, 06:51 PM   #4
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yeah, I am not sure how it works.. How does it know which gear you are downshifting to? The amount of throttle bip is different whether you are going 5-2 versus like 5-3..
maybe each gate on the shifter has a sensor that tells the ECU what gear you are about to engage?
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      01-08-2009, 06:52 PM   #5
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Quote:
Originally Posted by 325racer View Post
I hope they DONT!!!!!!!!!!!!!
why not? The Nissan version can be turned off.. I know this would be nice to have when you are too lazy to heal toe, or for those of us who are not that good at it especially when driving on a track
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      01-08-2009, 08:22 PM   #6
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Quote:
Originally Posted by Ramos View Post
Not even sure it's out yet.. But I am very curious about the technology...
Car and driver said it works perfectly and can also be disabled via a button.
Basically this is a full on manual that rev matches on downshifts for you..
No need to heel and toe with this technology.. Any chance BMW will copy this?
Pretty confident it's not groundbreaking, as the first to have this is VWs DSG (porsche's technology) it's on the GTIs/GLIs. BMW's DCT will surely have this too.

Or are you saying this is a regular manual with stick shift, but will blip the throttle when downshifting?
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      01-08-2009, 10:23 PM   #7
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Quote:
Originally Posted by kenneth View Post
....

Or are you saying this is a regular manual with stick shift, but will blip the throttle when downshifting?
yes, that is what this car apparently has.

http://www.e90post.com/forums/showthread.php?t=198186
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      01-08-2009, 10:30 PM   #8
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Great idea, wonder why this hasn't been thought of before
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      01-09-2009, 08:45 PM   #9
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It is a full on manual with three pedals and a gear shifter.. but it can rev match for you on downdhifts.. can also be turned off
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      01-09-2009, 10:07 PM   #10
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Our cars do it on an upshift when you have cruise going. Try it! If you're rolling in 5th with cruise push the clutch in. The revs will rest where they'll be in 6th. Also works going from 4th to 5th.
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      01-11-2009, 01:01 AM   #11
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Yeah.. That is a cool feature on the 3 series.. Not as cool as the rev matching on downshifts though !!
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      01-12-2009, 11:43 AM   #12
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I've heard the system on the 6MT 3-series also will not only rev-match on upshifts when the cruise, but downshifts too
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      01-12-2009, 11:59 AM   #13
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Quote:
Originally Posted by 135forthewin View Post
I've heard the system on the 6MT 3-series also will not only rev-match on upshifts when the cruise, but downshifts too
not that i can tell, but i'll try again to be sure
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      01-15-2009, 12:54 PM   #14
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3 series does not rev match when in cruise w/ clutch down.

It only holds RPM at where they are when you pressed in the clutch.

If it were rev matching:
- you would see a slight jump in rpm when engaging a lower gear (before you let the clutch out)
- or a slight drop in rpm when engaging a higher gear (before you let the clutch out).

-scheherazade
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