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Old Sep 9, 2004 | 10:30 PM
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Default auto. tranny performance question (newbie)

judging from various car magazines, i'd say its a fair estimate that the 6-speed Z does 0-60 in 5.3 seconds, agreed? give or take .1 or .2 seconds? What does the 5-speed auto. Z do 0-60 and the 1/4 mile in?
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Old Sep 10, 2004 | 06:39 AM
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I believe the exact same.
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Old Sep 10, 2004 | 11:15 AM
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Originally posted by Poison123
I believe the exact same.
True in most cases but, some of the 6MTs come with the ultra-secret Jeff Gordon option. That option makes an elite few 6MTs better than any 5AT and quite a few 6MTs no matter what. It even has a stealth feature so that 5ATs and unprivledged 6MTs can't copy or steal it.

Here we go again.
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Old Sep 10, 2004 | 01:39 PM
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I test drove the 6MT before I bought my 5AT and they felt equal. That doesn't mean much, considering how bad I suck at driving. Figure anywhere from 5.5 to 6 flat and around 14 in the 1/4.
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Old Sep 10, 2004 | 02:54 PM
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Uh, no. The 5AT is around 5.8, the 6MT is around 5.4. Sure, its not a big difference and most of us would be hard pressed to tell the difference, but there IS a difference.
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Old Sep 10, 2004 | 03:32 PM
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My 5AT Gtech/pro results. For what it's worth:
http://www.350zmotoring.com/forums/s...ighlight=gtech
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Old Sep 10, 2004 | 03:34 PM
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For those of you who don't like clicking:

Finally got to take my Redline 350Z 5AT to my favorite GTech/Pro testing grounds. Let’s just say that I am pleasantly surprised with the results. I did the test with the T/C off, and I did not brake torque at all. I also did not use the manual mode, just put it in drive and go. I have no mods, the car is completely stock. I did 2 runs in opposite directions. It was tested at about 2:00 PM and the ambient temp was 84 degrees.

#1
0-60 5.3 sec.
1/4 13.89 @103.9 MPH.

#2
0-60 5.46
1/4 14.10 @ 101.4

Now, do I really believe these results? Well, I have had the Gtech for a # of years. I would constantly test my 300ZX Turbo with it and the test results would always be consistent with known track times (off maybe a tenth or two). So even if my test results are not dead on accurate, I do know this for sure. My Z is doing 0-60 in well less the 6 seconds, and the 1/4 in about 14. I was going to test it in the manual mode, but was so happy to get these results, I got out of there before I attracted attention. Now don't flame me. I'm no kid and have no reason to make this and these number up. I'm just relaying to you what the unit said after the test were completed. I know that a lot of automatic owners have been wondering what kind of road test numbers they would be getting. As for the 6 speed owners. I know that your Z's are better than our automatics. I agree, if the situation at my house were different, I would probably have a manual. But then again, I probably would have screwed up my shifting and would have got slower times. My take? Yes, the 6 SP is more fun to have and drive. But for those of us who for 1 reason or another ended up with autos...... As far as accerlation goes, we have nothing to be ashamed about. I hope this info is helpful to at least someone.
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Old Sep 11, 2004 | 01:22 AM
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Originally posted by ktm
Uh, no. The 5AT is around 5.8, the 6MT is around 5.4. Sure, its not a big difference and most of us would be hard pressed to tell the difference, but there IS a difference.
I'm going to have to challenge you on this info because I don't understand how you produced these times. Did the same driver drive both the the 6MT and 5AT stock and under the same conditions or were these times acquired through some other standardized evaluation? If so, can you direct us to the publications or timeslips that show this? Or can you verify it some other way? I haven't found any professional publications that have tested both the 5AT and 6MT under controlled conditions. There are too many variables to compare times unless some standards are applied and tested.
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Old Sep 11, 2004 | 03:51 AM
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Originally posted by ktm
Uh, no. The 5AT is around 5.8, the 6MT is around 5.4. Sure, its not a big difference and most of us would be hard pressed to tell the difference, but there IS a difference.
Sounds like another 6MT Fanboy statement to me........
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Old Sep 11, 2004 | 04:25 PM
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Originally posted by Aggro_Al
I'm going to have to challenge you on this info because I don't understand how you produced these times. Did the same driver drive both the the 6MT and 5AT stock and under the same conditions or were these times acquired through some other standardized evaluation? If so, can you direct us to the publications or timeslips that show this? Or can you verify it some other way? I haven't found any professional publications that have tested both the 5AT and 6MT under controlled conditions. There are too many variables to compare times unless some standards are applied and tested.
Hey Aggro_Al, I just noticed this tonight. The first AT performance quote that I have seen. Keep in mind that this quote is for the 350ZR 5AT which in touring trim weighs 3479 Lbs, 240 Lbs more then the touring coupe. They say it's a 4AT, but thats a typo. If you go to the overview page they list it as a 5AT. 6.31 seconds to 60 is real close to what most of the auto mags are getting with the G35 5AT. The 3479 Lb weight is also close to the G. Anyway, weighing 240 Lbs less in coupe trim would put (I would think) the Z 5AT right in the ballpark at mid to high 5 second range, don't you think? Just what we've been estimating. Well, I don't know how reliable this web sites performance numbers are. But it's all we have for now (along with my gtech test ) Go to the page below and scroll down until you see it.
http://autos.msn.com/research/vip/Sp...IP&tab=2&sub=0
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Old Sep 11, 2004 | 06:48 PM
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My Bell timer shows a quicker time(.1-.2sec) then the actual drag time. To find out the real 1/4mile time take it to the strip. But mid 5sec 0-60 is right.
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Old Sep 11, 2004 | 11:55 PM
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Hey Steve, checked out that link. They have the 6MT coupe at 5.2s. I think it's a little on the fast side for most stock drivers but it's attainable. How come they tested every type except the 5AT coupe? You and JonsilvZ seem to be able to get mid 5s consistently. I wonder what everybody else is doing.
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Old Sep 12, 2004 | 12:15 AM
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Originally posted by SteveZ33
My 5AT Gtech/pro results. For what it's worth:
http://www.350zmotoring.com/forums/s...ighlight=gtech
My touring Z with nav and all the other stuff
g-techs low 5's to 60 and 13.7-13.9 1/4 mile. I get great traction on the street.

In real life I hit 14.1 all day long at the drags.
Traction is a big problem when you are at a drag strip at least the one I go to. To date no 6MT has turned better times than me and there will be about 5 Z's at Infineon this coming Weds night. I will be the only 6AT. My best at the drags so far have been in the low 14.0's with 14.007 best to date. At that track 6MT's are doing 14.3-14.9. Now most of these guys are still trying to get the traction and shifting problems squared away and they will be turning better times. these are also similarly equiped cars to mine. I think any HP sucked off from the tranny is more than made up for by the accuracy of shifting. I don't miss shifts.
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Old Sep 12, 2004 | 05:19 AM
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Originally posted by Aggro_Al
They have the 6MT coupe at 5.2s. I think it's a little on the fast side for most stock drivers
Yeah, I thought that was kinda funny. Thats why I questioned the reliability of their test numbers. But you're right, its attainable.

fowlman01, Thanks for the reply & report on your performance numbers I think that your quote "I think any HP sucked off from the tranny is more than made up for by the accuracy of shifting." is right on the money in my book.
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Old Sep 12, 2004 | 08:56 AM
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I would think that the AT would be slower because......

a) You lose more power to the AT drive train.
b) You cannot launch AT as efficiently as 6MT
c) The ratios of the gears (6MT) are shorter for quicker acceleration.

Someone correct me if i'm wrong, or if ive missed some other key points.
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Old Sep 12, 2004 | 09:02 AM
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Originally posted by BKMC
I would think that the AT would be slower because......

a) You lose more power to the AT drive train.
b) You cannot launch AT as efficiently as 6MT
c) The ratios of the gears (6MT) are shorter for quicker acceleration.

Someone correct me if i'm wrong, or if ive missed some other key points.
Are you insane? lol J/K

first off,:

a) You are correct, but not enough power to make a difference. (Ive driven both).

b) WRONG. The Auto will launch better 99% of the time with more efficiency than the 6MT.

c) again, Correct, BUT again, not enough to make a big difference. The difference in each trannys' accel rate is negligable.
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Old Sep 12, 2004 | 09:27 AM
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Here's my take on the subject:

In Many cases, the auto version of a car will be MUCH slower than its 6mt counterpart. This is the dominant factor which gives the auto a bad reputation. Take the Acura RSX for example (I can speak intellegently about it because Ive driven every model)....The 5AT version runs Mid to HIGH 16's, with a 0-60 time of around 8.5 Secs, While its Manual counterpart (BASE model) runs mid-High 15's with a 0-60 time in the area of high 7's. The TYPE-S: High 14's, low 15's, 0-60 in Low 7's. The RSX isnt alone, as there are many models, where the auto is NOTHING compared to the manual.

People who are performance oriented often Hate autos because of their EASE and simplicity of driving, and always assume they are Much slower than the 6MT version, because of gear ratios and increased drivetrain loss. While this is always true, The Z is a perfect example of the fact that There are some BadASS Autos out there, which are competitive with their 6mt version and in many cases, OUT-perform them in some areas.

Bottom line, the 6MT is much more fun to drive (that enjoyment is compensated in the auto, with its Manumatic feature). People choose the AT for Their own reasons, I have owned 3 manuals before this. This is a 350Z car club, in which we are all members. 95% of us Own this car. Its still a Z regardless of its tranny, and deserves Just as much respect either way, with the AUTO deserving more . The point: whenever you hear "AUTO" or "5AT", dont jump the gun and make false assumptions based on the reputations of Other cars.
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Old Sep 12, 2004 | 11:12 AM
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I own a 6MT. I have all love and respect for the Z in any form. However, the last numbers I saw for the 5AT put it at around 5.8 seconds. Sure, the numbers may vary slightly, but those are the numbers I recall seeing.

I offer a challenge to you to show me numbers, from CONTROLLED conditions, of where a 5AT is producing the same numbers as a 6MT.

Yes, the shifts may be more accurate, but you CAN NOT use this as a factor. If the 6MT hits all the shifts correctly, the 5AT can not match the numbers.

In the real world, sure, the average driver can not tell the difference, which is what I originally said.

If you read the link that was provided earlier, you'll see that the 5AT roadster was 0.3 seconds off the 6MT roadster. Now, add 0.3 seconds to the often quoted 5.4ish seconds of a 6MT coupe and what do you get?

As for the fan boy comment.....you've been b****-owned boy.
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Old Sep 12, 2004 | 12:26 PM
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Originally posted by ktm
If you read the link that was provided earlier, you'll see that the 5AT roadster was 0.3 seconds off the 6MT roadster. Now, add 0.3 seconds to the often quoted 5.4ish seconds of a 6MT coupe and what do you get?

As for the fan boy comment.....you've been b****-owned boy.
I'll take that. My automatic tranny in this day and age just 0.3 slower then a 6MT Plus, still doing it in well under 6 seconds
Life is all good again. BTW, what the hell is a fan boy?
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Old Sep 12, 2004 | 01:45 PM
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get a quality shift kit installed and a torque convertor...and you're money.
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