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      01-17-2011, 12:31 PM   #1
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8 Speed A/T

Will the new F30 be available with the new 8 speed automatic transmission?
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      01-17-2011, 12:54 PM   #2
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too many gears unless the top speed is 250
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      01-17-2011, 01:19 PM   #3
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Why is it that everytime somebody mentions 8 speed, somebody always says '"too many gears"? FYI, just look at it like a close ratio 6 speed that most people use and 2 overdrive gears for fuel efficiency. You'll never see above 4 or 5th gear at a racetrack unless you are doing over 150 mph.
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      01-17-2011, 04:33 PM   #4
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I would venture a guess that the F30 will come with the 8 Speed ZF A/T and the 7 Speed DCT
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      01-17-2011, 11:44 PM   #5
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8 sounds like overkill...
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      01-18-2011, 12:41 AM   #6
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8 speed auto

I have a 335i with the auto 6 speed and have driven the 8 speed auto on the new 5 series (same engine). I like the smoothness & delivery of the 8 speed alot and it offers much better MPG (30 mpg hwy on the 535i that weighs 4100 lb.) I project that the new F30 335i with 8 speed auto @ approx. 3600 lbs will get at least 32/33 mpg Hwy.
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      01-18-2011, 02:08 PM   #7
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Quote:
Originally Posted by pogodog View Post
I have a 335i with the auto 6 speed and have driven the 8 speed auto on the new 5 series (same engine). I like the smoothness & delivery of the 8 speed alot and it offers much better MPG (30 mpg hwy on the 535i that weighs 4100 lb.) I project that the new F30 335i with 8 speed auto @ approx. 3600 lbs will get at least 32/33 mpg Hwy.
doesnt e90 335 pretty much get 32-34mpg hwy with 6speed?
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      01-18-2011, 03:15 PM   #8
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mpg

A 2011 N55 engine in the 335i gets 28 mpg rating- 2011 535i gets 30 mpg rating (both by US EPA) both with auto transmissions
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      01-18-2011, 09:26 PM   #9
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I think the 8 speed is awesome and possibly the best automatic transmission. There's more to owning cars than racing them.

I found this very interesting and can't wait to get my ZF 8-speed f30.

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      01-24-2011, 01:31 PM   #10
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That was a pretty cool video.
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      01-24-2011, 05:11 PM   #11
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Quote:
Originally Posted by quality_sound View Post
That was a pretty cool video.
+1

Interesting to think when/if there will be a big technological break in trans. function, seeing how the concept has stayed the same since the invention of the car.
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      01-24-2011, 11:40 PM   #12
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I don't think the new 3 series will have 8 speed transmission....
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      01-25-2011, 12:06 AM   #13
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I'm pretty sure everything will get the 8 speed. No reason not to.
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      01-25-2011, 12:46 AM   #14
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Quote:
Originally Posted by ToothDoc View Post
Why is it that everytime somebody mentions 8 speed, somebody always says '"too many gears"? FYI, just look at it like a close ratio 6 speed that most people use and 2 overdrive gears for fuel efficiency. You'll never see above 4 or 5th gear at a racetrack unless you are doing over 150 mph.
If this is true I could find myself liking this. I know it is not the same, but the IS-F has 8 gears and it is pretty quick.
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      01-25-2011, 02:59 AM   #15
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If Audi can use an 8-speed in the A4 and up and Lexus can use if in the IS models, there's no reason it can't be used effectively in the 3ers as well.
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      01-25-2011, 12:22 PM   #16
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looks like ZF is the number one in transmissions
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      03-26-2011, 11:49 AM   #17
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ZF says the 8HP is six percent more *efficient than the outgoing sixer and nearly as efficient as a dual-clutch automated manual, which ZF also produces. However, the eight-speed is roughly 20 percent cheaper and retains the smooth, torque-converter starts to which U.S. buyers have become accustomed. Furthermore, the 8HP has a system to maintain hydraulic pressure even when the engine isn’t running and is therefore the first automatic that’s compatible with stop-start operation


http://www.caranddriver.com/features...sion-tech_dept
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      04-01-2011, 05:54 PM   #18
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I think an 8 speed in the 3 series is a no-brainer. Fuel economy standards are becoming very tough, and are stricter for small vehicles like the 3 series. If ZF is comparing fuel efficiency with a DCT, it is probably a dry clutch DCT. A dry clutch DCT is limited in the amount of torque it can handle. One is fitted to the VW GTI. Wet clutch DCT's as used by BMW don't have very good fuel economy due to pumping losses. Note that a 135i with DCT only gets an 18/25 EPA rating. However, I do like the way mine drives. I expect future use of the wet clutch DCT will be confined to low volume vehicles like M series or "is" models.
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      04-02-2011, 12:41 AM   #19
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Any talk about whether new 3 series will have DCT standard? Audi s4s have it standard.
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      04-02-2011, 02:36 AM   #20
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Quote:
Originally Posted by Want View Post
8 sounds like overkill...
Drive the F10 sport auto - then see what you think about 8 speed boxes.
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      04-02-2011, 09:21 AM   #21
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Quote:
Originally Posted by weiweiwei View Post
Any talk about whether new 3 series will have DCT standard? Audi s4s have it standard.
I don't think this is right. Maybe they are changing for this coming year, but currently the DCT costs $1400 more than the manual on the S4. I recently text drove a manual S4 and it was OK, but didn't wow me. Haven't tried the DCT
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      04-03-2011, 02:47 PM   #22
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Quote:
Originally Posted by weiweiwei View Post
Any talk about whether new 3 series will have DCT standard? Audi s4s have it standard.
DCT is overkill (and expensive $$) for a standard feature. The new ZF 8HP transmission will be plenty good for most 3-series buyers.
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