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What are your 7AT experiences?...

We hear a lot about the 6MT but little about the AT. What are you new owners feeling and experiencing with the AT?

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Old 01-08-2009, 06:56 PM   #1 (permalink)
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Default What are your 7AT experiences?...

We hear a lot about the 6MT but little about the AT. What are you new owners feeling and experiencing with the AT?
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Old 01-08-2009, 09:00 PM   #2 (permalink)
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you're getting a 370 even tho you got a brand new 335i?
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Old 01-08-2009, 09:30 PM   #3 (permalink)
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I am hoping that is not too crazy. My wife mostly drives the 335 and as you all know it is an awesome car. The z, to me is an entire different animal. It is youthful, pure, and the high revving engine gets the blood flowing like the torquey 335. Did I mention my wife only lets me take it out about once a week...lol
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Old 01-08-2009, 09:36 PM   #4 (permalink)
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One thing I dont hear much about the 335 is the engine/auto-transmission relationship and how it is very different in that car than in most. The tranny short shifts and gets confused a lot. The high torque is difficult for the auto transmission to smoothly transfer to the wheels. Often with less than half throttle I look like a novice driver with a surge and a lull. I guess I am more in love with high hp high revving engines. I have not drivven the new z yet. I will give my comparo when I do....
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Old 01-08-2009, 09:43 PM   #5 (permalink)
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Welcome to the forums John. The new 7AT transmission is pretty unique compare to the previous model tranny. It's more refined and does the rev match very uniquely. I have almost asked every 7AT 370Z owners to write a review on what they think and if there are any interesting findings.

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Old 01-08-2009, 10:01 PM   #6 (permalink)
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The car is fast and I am glad I opted for the A/T, this is my first car with paddle shifters so I can't compare it to anything. Personally I feel the gear changes are quick.
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Old 01-08-2009, 10:18 PM   #7 (permalink)
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Its not bad.
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Old 01-08-2009, 10:31 PM   #8 (permalink)
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I have not read if the AT is slower, quicker or the same....just speculations. If the mpg is better or worse...What is the best launch for the AT? What rpm r u at at highway cruising speeds? Are the shifts smooth or harsh? Is there a sport shift mode like BMW? and what is the difference. Thanks I love this forum!
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Old 01-09-2009, 01:20 AM   #9 (permalink)
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the 7AT will be a tick faster, but apparently the manual is more "involving" and "fun"
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Old 01-09-2009, 09:06 AM   #10 (permalink)
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Originally Posted by bossman View Post
the 7AT will be a tick faster, but apparently the manual is more "involving" and "fun"
Why would it be a tic faster? The only AT's I've heard that were faster are true dual-clutch transmissions. A normal driver should be able to shift a bit faster than 500 milliseconds so it would basically have to be a gearing difference, maybe?
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Old 01-09-2009, 09:33 AM   #11 (permalink)
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Quote:
Originally Posted by Lug View Post
Why would it be a tic faster? The only AT's I've heard that were faster are true dual-clutch transmissions. A normal driver should be able to shift a bit faster than 500 milliseconds so it would basically have to be a gearing difference, maybe?
.5 sec is pretty fast, not dct fast but almost as fast. See how long it takes to press the clutch and change gears, and release the clutch. I think for most drivers it's going to take more than .5 secs.
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Old 01-09-2009, 11:45 AM   #12 (permalink)
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Quote:
Originally Posted by Lug View Post
Why would it be a tic faster? The only AT's I've heard that were faster are true dual-clutch transmissions. A normal driver should be able to shift a bit faster than 500 milliseconds so it would basically have to be a gearing difference, maybe?
Tick faster to what exactly ?...it shouldn't be a tick faster from a standstill to anything because you can't launch it. After that, anyone who knows how to shift a car should be able to shift in under 500ms...thats a half a second for you math impaired folks...

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Originally Posted by azn370z View Post
.5 sec is pretty fast, not dct fast but almost as fast. See how long it takes to press the clutch and change gears, and release the clutch. I think for most drivers it's going to take more than .5 secs.
You are certainly right, 500ms is fast for an automatic and not almost as fast as a DCT, sorry. The DCT in the M3 can do under 100ms and the DCT in the GT-R can do under 250ms. Also I don't know how much experience you have driving manual transmissions, but you press/depress the clutch and change the gear almost simultaneously, it isn't 3 different steps in practice. People who drive aggressively should be able to do this in less than 500 ms...

I'll give you the fact that the auto tranny in the Z isn't bad by automatic transmission standards, but don't think that it is better than a good driver with the manual.
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Old 01-09-2009, 12:20 PM   #13 (permalink)
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Quote:
Originally Posted by RCZ View Post
Tick faster to what exactly ?...it shouldn't be a tick faster from a standstill to anything because you can't launch it. After that, anyone who knows how to shift a car should be able to shift in under 500ms...thats a half a second for you math impaired folks...



You are certainly right, 500ms is fast for an automatic and not almost as fast as a DCT, sorry. The DCT in the M3 can do under 100ms and the DCT in the GT-R can do under 250ms. Also I don't know how much experience you have driving manual transmissions, but you press/depress the clutch and change the gear almost simultaneously, it isn't 3 different steps in practice. People who drive aggressively should be able to do this in less than 500 ms...

I'll give you the fact that the auto tranny in the Z isn't bad by automatic transmission standards, but don't think that it is better than a good driver with the manual.
+1 I think a good driver can beat 300 milliseconds in a standard.
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Old 01-09-2009, 03:04 PM   #14 (permalink)
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Quote:
Originally Posted by Lug View Post
+1 I think a good driver can beat 300 milliseconds in a standard.
My understanding is 300 milliseconds is about the norm for an experienced driver in a competitive environment. I have nothing to back that up, but I know I have read that somewhere.

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Old 01-09-2009, 07:26 PM   #15 (permalink)
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depends how far the clutch has to travel. For example, in a Mustang I can't see depressing the clutch an letting it out taking under .5 seconds
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