6MT vs 7AT and the Track/Auto X

kannibul

And for good reason. I don't know of any automatics that are used with any kind of frequency for "events"

That being said, I'd be confident the 7AT would perform as well, and possibly in some ways better, than a 6MT.

Short of overheating issues...if that's an issue (comparatively speaking, regarding oil temps vs transmission temps - which one becomes an issue first...)

370Zsteve

Again, Car & Driver reported that the 7AT does not drop 2 or more gears when requested. I've never driven the 7AT, so I have no fkin idea............but C&D's take makes me think it would suck in AutoX.

Quote: "The one negative we noted was a reluctance to crack off seamless multigear jumps. Call for a two-gear drop, and the engine briefly hangs up on the first before dropping into the second, sapping some of the joy and confidence from quick two-lane passes."

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blinkme323

That pretty much sums it up right there.

Endgame

I did try that when I was test driving on Monday and, at least in the one I drove, the same occured; the shift did stall some. The plus side is that the stall was not bad as other Sport ATs can take that long to shift period!

But, this would affect track/autocross overall performance.

kannibul

That's Car and Driver. My experience differs.

It won't jump gears, except from 7th to 5th, when bumping the paddles or kicking the stick over from D. Otherwise, it is sequential, but still quick. Certainly not F1...

awesomez

You can never have this discussion on an internet forum. Manual people love the manual and simply hate automatic. Automatic people love automatic and hate manual. As someone who loves both, given the choice I would drive a manual on track but since I drive my car 90% on road I bought automatic. In my opinion, auto will beat manual but you won't see it happen for two different reasons. People who bought automatic don't care that much about driving it on the track. People who can drive on the track very well won't know how to drive the automatic very well.

Also, I bet you that manual transmission will overheat engine oil and hit the limp mode a lot sooner than automatic will overheat.

shabarivas

Come on ... the Zs A7 is good - have you ever driven a real modern day sequential? There is a HUGE difference - stop fooling your self about it... but if it helps you feel better then w/e

awesomez

Or are you making yourself feel better by belittling auto

Endgame

I disagree Awesomez... The AT's engine oil should overheat at the exact same rate. And as an earlier post indicated, I am sure an aftermarket Tranny cooler would be needed. Some of the RX8 guys that track their 6AT have all had to do this..

shabarivas

Hah... so the serpent has come full circle to bite its tail eh... ok ok... you do realize I was Belittling the "auto" compared to a SEQUENTIAL... you understand the difference between a manual and a sequential? please dont make me tell you to go look it up @ google... oh wait.. i just did

Lets say this about the MT / AT debate

1. With AT you get the same shift time every time and you cant really improve upon it by being a better driver (hardware limited)

2. With MT - its you who are limiting the cars shift speed - so you can do it as fast as the mechanics allow and the human element is often much easier to improve over time. Which is why MOST experienced MT drivers will shift faster than the Zs AT

Easiest way to put an end to this silly debate - Get a MT and AT z on a dyno... shift and watch the curves for which has more delay... obviously we would have to use a "decent" MT driver... but hey - it would be better than my opinions vs yours....

In fact there are two things: science and opinion;
the former begets knowledge and the latter ignorance

Lug

The Auto has been faster straight line so far. The manual will have an advantage when you have to downshift more than one gear at a time. I conclude that the tighter the track, the more it will favor the manual, but at what point they cross only time will tell.

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Red370

well gentlemen, theres only one way to find out, lets head to Buttonwillow and put down some times shall we?

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shabarivas

^ no that does not really work unless the same driver is driving both cars... which is why I say.. lets throw em on a dyno... and see how much delay there is before the TQ picks up for the A7 vs the M6

awesomez

I have driven over 150+ different cars and I've had my license for 13 years. So yes that means I have driven my first manual with a booster seat. Yes I know what a sequential is, that's why I didn't say anything about sequential but about your belittling of modern auto transmissions.

I wouldn't touch the S word if I were you. I doubt you have anything to do with science, I would guess there is a good chance you believe in easter bunny.

j.arnaldo

Does anyone here know the torque difference in the 370's AT vs. MT? In the 350 it's 260ft/lbs for the MT, vs. 274ft/lbs for the AT. Would that make a significant difference?!