Nissan 370Z Forum

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-   -   I just took out a 7AT for a ride... (http://www.the370z.com/nissan-370z-general-discussions/8748-i-just-took-out-7at-ride.html)

MeetJoeAsian 10-13-2009 09:59 PM

Here's really the reason why I prefer to keep my 6MT over trading it for a 7AT, I love the fact that I control every factor of my car's shifting in a 6MT...with the 7AT, you press the button, and a computer decides what gear to put it into based on your input, and then it "electronically" selects the gear for you...I like the SMG transmission, where it IS a manual transmission, but you just have a pump clutching & putting it into gear for you...I guess for me, the feeling is different driving when you know that your gear mechanics are the place you want them to be, rather than having a computer holding the gear for you...

I would have been more inclined to get an automatic had it been a sequential-shifter ONLY...meaning, no option to put into full automatic (like the last generation of the Toyota MR2 sequential shifter)...in my head, I feel that if I have a full automatic that it's not meant to be shifted manually, and I would get into the habit of not shifting, and in the long run, I'm just gonna get rid of the car cuz the "fun" factor is gone, just like with my G35c...

xfrgtr 10-13-2009 10:12 PM

Quote:

Originally Posted by chief_Roka (Post 234549)
Here's a lil factoid bout formula 1 cars
Formula 1 cars have top engineers designing new tech on a constant basis. This is what makes formula1 so expensive. The most successful of this technology is trickled down into production cars. R&d is furthered to make this tech cheaper yet good enough for daily use in production cars. So this auto may be formula 1 of 10 years ago??? But its still tech from the formula 1. So get over it.
U guys act like your crap slap manuals are the same manuals used in racing. Lol.
No, its a stripped crapped cheapened version of a true racing manual. Why not just ask nissan for a car with no tranny and build a true racing manual?

So in the end, its preference. And snyde comments like yours can go both ways.
1 to grow on.

I LUV THE 7AT! :)

:roflpuke2:

kannibul 10-13-2009 10:27 PM

Quote:

Originally Posted by MeetJoeAsian (Post 235602)
Here's really the reason why I prefer to keep my 6MT over trading it for a 7AT, I love the fact that I control every factor of my car's shifting in a 6MT...with the 7AT, you press the button, and a computer decides what gear to put it into based on your input, and then it "electronically" selects the gear for you...I like the SMG transmission, where it IS a manual transmission, but you just have a pump clutching & putting it into gear for you...I guess for me, the feeling is different driving when you know that your gear mechanics are the place you want them to be, rather than having a computer holding the gear for you...

I would have been more inclined to get an automatic had it been a sequential-shifter ONLY...meaning, no option to put into full automatic (like the last generation of the Toyota MR2 sequential shifter)...in my head, I feel that if I have a full automatic that it's not meant to be shifted manually, and I would get into the habit of not shifting, and in the long run, I'm just gonna get rid of the car cuz the "fun" factor is gone, just like with my G35c...

What are you talking about?

7AT changes to the next gear up or the next gear down *when* you tell it to - if you need to "skip" a gear, bump it twice...it does it.

The only exception is if it's in "auto" mode *and* you either flip it to manual, or bump the "-" paddle shifter, it'll drop from 7 to 5 when going down the highway, and I still will sometimes bump it twice to kick it to 4th and haul...if you bump the "+" paddle, it stays in 7th and you can back it down to 6th if you so desire, or pull over the stick at that point and it'll stay in 7th (I need to double check on moving the stick, though I know it will stay in 7th with the paddles and being in auto mode)

As for not being meant to - if that was the case, they wouldn't have made it so.

kannibul 10-13-2009 10:28 PM

Quote:

Originally Posted by shabarivas (Post 235113)
I mean there was a G35 which had a plenum spacer (5/16th) + a valve body upgrade which would run LOW 13s if not 12s - All it took was a huge stall RPM for the tq converter - I mean you can make the converter VERY efficient - but a manual is a manual. The only way you get faster than manual is if you have 2 clutches... case and point lol

That reads like the Chuck Norris chin/fist joke.

stan618 10-13-2009 10:52 PM

not knocking the 7AT but to compare the nissan 7AT to "autos" in Ferraris, GTRs, newer porsches, the new EVO, and F1 cars is a stretch as the 7AT is a conventional torque converter auto, where the "autos" of the other cars use a computer actuated clutch or dual clutch as in the PDK(porsche), DSG(audi) and nissan GTR.

not saying the 6MT is better than the 7AT, to me its personal preference. both make great sports cars.

MeetJoeAsian 10-13-2009 11:53 PM

Quote:

Originally Posted by kannibul (Post 235696)
What are you talking about?

7AT changes to the next gear up or the next gear down *when* you tell it to - if you need to "skip" a gear, bump it twice...it does it.

The only exception is if it's in "auto" mode *and* you either flip it to manual, or bump the "-" paddle shifter, it'll drop from 7 to 5 when going down the highway, and I still will sometimes bump it twice to kick it to 4th and haul...if you bump the "+" paddle, it stays in 7th and you can back it down to 6th if you so desire, or pull over the stick at that point and it'll stay in 7th (I need to double check on moving the stick, though I know it will stay in 7th with the paddles and being in auto mode)

As for not being meant to - if that was the case, they wouldn't have made it so.

The automatic in the 370Z is a fully automatic engine with sequential shifting to imitate a manual...whereas the SMG and F1s are true manuals with sequential shifting....and this is where the fun is differentiated

don't get me wrong, I'm NOT knocking 7AT vs 6MT...I think the sequential automatic shifter in the 7AT is great, but it's just still not a manual transmission...a manual transmission is true gear and clutch shifting, whereas in the 7AT, it's a computer electronically imitating a manual....it's a great car if you want the occasional controlled driving, but it's still an automatic...

kannibul 10-14-2009 12:42 AM

Quote:

Originally Posted by MeetJoeAsian (Post 235830)
The automatic in the 370Z is a fully automatic engine with sequential shifting to imitate a manual...whereas the SMG and F1s are true manuals with sequential shifting....and this is where the fun is differentiated

don't get me wrong, I'm NOT knocking 7AT vs 6MT...I think the sequential automatic shifter in the 7AT is great, but it's just still not a manual transmission...a manual transmission is true gear and clutch shifting, whereas in the 7AT, it's a computer electronically imitating a manual....it's a great car if you want the occasional controlled driving, but it's still an automatic...

Honestly, how is there a difference from an operational, driver's, point of view between this transmission and an F1 transmission?

Both involve user intervention to make the shift, ie, pressing a paddle (or button), to initiate the shift, in sequence.

Am I saying they perform equally, hell no, but from an "enthusiast" (controlled) driving perspective, how is it really all that different? In fact, I'd say the advantage would go here to the 7AT because you can keep both hands on the wheel and manage your transmission with a flick of a finger. It's not an automatic imitating a manual, it's an automatic imitating a dual-clutch sequential transmission (ie, fast shifts) in fact, you could look at it the other way and say that SRM is the 6MT imitating the 7AT...

Until this car and it's transmission came along, I'd agree with you, automatics were slushy and too focused on being "smooth" in shifting...this car is anything but. Even in "auto" mode, it's still pretty firm between shifts. Move it over to manual mode, and it WILL NOT shift short allowing the driver to kill the engine for forgetting to downshift.

sw1318 10-14-2009 09:28 AM

Quote:

Originally Posted by stan618 (Post 235765)
not knocking the 7AT but to compare the nissan 7AT to "autos" in Ferraris, GTRs, newer porsches, the new EVO, and F1 cars is a stretch as the 7AT is a conventional torque converter auto, where the "autos" of the other cars use a computer actuated clutch or dual clutch as in the PDK(porsche), DSG(audi) and nissan GTR.

not saying the 6MT is better than the 7AT, to me its personal preference. both make great sports cars.

I drive a SST and the new 7 speed AT on the 370Z. I got to say they are dame close!

Lug 10-14-2009 10:00 AM

The shift speed of the 7AT is advertised as 500 milliseconds. This is very very fast for a slush bucket tranny. Most are closer to the 1 second range.

MeetJoeAsian 10-14-2009 08:39 PM

I'm sure pretty soon, there will be a "SRM vs. natural downshift or heel-toe" thread...it's a preference, and I prefer the 6MT after almost trading it in for a 7AT...nothing against the 7AT, it's a great tranny, but I prefer just raw moving parts over an electronic limiter

kannibul 10-14-2009 08:47 PM

Quote:

Originally Posted by MeetJoeAsian (Post 237082)
I'm sure pretty soon, there will be a "SRM vs. natural downshift or heel-toe" thread...it's a preference, and I prefer the 6MT after almost trading it in for a 7AT...nothing against the 7AT, it's a great tranny, but I prefer just raw moving parts over an electronic limiter

"over an electronic limiter" - what the heck are you talking about?

JoeD 10-14-2009 09:00 PM

Does the 7AT double-clutch on up-shifts? My homeboy in auto-shop class who knows a lot about cars said that double-clutching is a must if you want to go faster.

theDreamer 10-14-2009 09:02 PM

No, the Z does not have a double-clutch transmission.

JoeD 10-14-2009 09:02 PM

Quote:

Originally Posted by Lug (Post 236045)
The shift speed of the 7AT is advertised as 500 milliseconds. This is very very fast for a slush bucket tranny. Most are closer to the 1 second range.

Damn...500 milliseconds ain't bad. It would have been better if they shaved that down to half a second, though.

theDreamer 10-14-2009 09:04 PM

Quote:

Originally Posted by JoeD (Post 237165)
Damn...500 milliseconds ain't bad. It would have been better if they shaved that down to half a second, though.

That is half a second.

JoeD 10-14-2009 09:06 PM

Quote:

Originally Posted by theDreamer (Post 237163)
No, the Z does not have a double-clutch transmission.

Wait...so you need a double-clutch transmission to do it? He has a '94 Prelude and he swears it's hella faster when he double-clutches, but I don't think he has changed the transmission. He says he beat his homeboy's dad's Mustang GT if he double-clutches, but he loses if he doesn't. I was just wondering if the 7AT could do the same thing. Is there a button you can press for it or something?

JoeD 10-14-2009 09:08 PM

Quote:

Originally Posted by theDreamer (Post 237170)
That is half a second.

WTF are you talking about? :icon14: :icon14:

500 of something can't be the same as half of something else.

Matt 10-14-2009 09:09 PM

Quote:

Originally Posted by JoeD (Post 237182)
WTF are you talking about? :icon14: :icon14:

500 of something can't be the same as half of something else.

/head explosion

theDreamer 10-14-2009 09:12 PM

You want it to be half of 500 milliseconds?

Trips 10-14-2009 09:15 PM

Quote:

Originally Posted by Matt (Post 237185)
/head explosion

post 3 and thats what you came up with? wow very impressive!

Matt 10-14-2009 09:18 PM

Quote:

Originally Posted by Triple's (Post 237203)
post 3 and thats what you came up with? wow very impressive!

I'm still using an iphone app to figure out what half a second is in milliseconds. Give me a minute!

nogoodname 10-14-2009 09:37 PM

the Z will never have a dual clutch from factory.....

JoeD 10-14-2009 09:39 PM

Quote:

Originally Posted by nogoodname (Post 237236)
the Z will never have a dual clutch from factory.....

But can you double-clutch it?

TX_370 10-14-2009 09:42 PM

1 Attachment(s)
Quote:

Originally Posted by JoeD (Post 237182)
WTF are you talking about? :icon14: :icon14:

500 of something can't be the same as half of something else.

Huh???

does 500 not equal 1/2 of 1000 //// 1000 equal half of 2000

P.S. 500 miliseconds = 1/2 second

Attachment 5690

simota1 10-14-2009 09:43 PM

double clutching can only be done on a manual trans..... not an auto... and it feels like it makes u go faster but actually it just burns ur clutch faster and basically jus makes ur car jump for a split sec forward...

frost 10-14-2009 09:44 PM

http://www.camaro5.com/forums/images...s/facepalm.gif

simota1 10-14-2009 09:47 PM

o man frost was that for me!!?!? did i embaress my self? hahaha

stan618 10-14-2009 09:47 PM

there seems to be some confusion about double clutching and a dual clutch transmission.

double clutch is a driving technique, a way of shifting a manual transmission that involved depressing and releasing the clutch twice when shifting
Double clutch - Wikipedia, the free encyclopedia

Dual clutch is a type of manual transmission that utilizes two clutches to achieve very smooth shifts compared to regular automated manuals such as the BMW SMG(since replaced with a dual clutch design)
HowStuffWorks "How Dual-clutch Transmissions Work"
Twin-clutch gearbox - Wikipedia, the free encyclopedia

frost 10-14-2009 09:47 PM

Quote:

Originally Posted by simota1 (Post 237265)
o man frost was that for me!!?!? did i embaress my self? hahaha

No, it was for the thread direction in general. :D

simota1 10-14-2009 09:48 PM

:icon18: o ok man i was like ****, LMAO...

nogoodname 10-14-2009 09:50 PM

if u want the ulimate trans, get a dual clutch one....... so went u r in gear one ,...gear 2 is already spinning and awaiting to bang in....its like having 2 trans


thats a real dual'er

simota1 10-14-2009 09:51 PM

i think that dude is talking about double clutching the technique.... not the trans one... haha

nogoodname 10-14-2009 09:55 PM

Quote:

Originally Posted by simota1 (Post 237282)
i think that dude is talking about double clutching the technique.... not the trans one... haha

in an autos thread.....lol


only thing auto has is downshift rev match

DropTopGal 10-14-2009 11:42 PM

:rofl2:This thread has become very funny to read! :rofl2: :drama:

Quote:

Originally Posted by JoeD (Post 237155)
Does the 7AT double-clutch on up-shifts? My homeboy in auto-shop class who knows a lot about cars said that double-clutching is a must if you want to go faster.

Even I know better than that. LOL :driving:

Quote:

Originally Posted by JoeD (Post 237165)
Damn...500 milliseconds ain't bad. It would have been better if they shaved that down to half a second, though.

:icon18::icon18::icon18: :rofl2:

Quote:

Originally Posted by JoeD (Post 237182)
WTF are you talking about? :icon14: :icon14:

500 of something can't be the same as half of something else.

:icon18::icon18::icon18: :rofl2:

Quote:

Originally Posted by Triple's (Post 237203)
post 3 and thats what you came up with? wow very impressive!

:icon18::icon18: :owned: :rofl2:


7AT or 6MT, it's all good (even though the 7AT has the 6MT beat by a couple of tenths, then again, what it 2/10ths... silly)

phelan 10-14-2009 11:56 PM

Quote:

Originally Posted by DropTopGal (Post 237494)
7AT or 6MT, it's all good (even though the 7AT has the 6MT beat by a couple of tenths, then again, what it 2/10ths... silly)

2/10ths is everything on the dragstrip...

but that's besides the point we're making right now :icon14:

JoeD 10-15-2009 01:38 AM

Quote:

Originally Posted by stan618 (Post 237267)
there seems to be some confusion about double clutching and a dual clutch transmission.

LOL...the only confusion is on behalf of you guys. :)

Trips 10-15-2009 03:24 AM

:wtf2:

simota1 10-15-2009 08:24 AM

Quote:

Originally Posted by nogoodname (Post 237294)
in an autos thread.....lol


only thing auto has is downshift rev match

no **** huh lol it is a autos thread..... :roflpuke2:

antbear 10-15-2009 09:04 AM

My 7AT is sooooooo much fun to drive. All I had to do was drive both and was instantly sold after making the comparison. Paddle shifting is much faster than throwing that manual shift. When someone says why did you ever buy a sports car with an automatic trans. I say..........What's good enough for Formula 1 racing is good enough for me.......End of conversation.

simota1 10-15-2009 09:08 AM

^^^^ ok nice fog on ur yellow z by the way


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