6MT vs 7AT and the Track/Auto X

shabarivas

Ha ha ... comparing your Zs AT to your trucks MT is not at all accurate man...

kannibul

You're right, I should compare my trucks 5MT to every other MT vehicle I've driven...oh, wait, I have, and my statement still holds true. My trucks 5MT is just as fast between gears as any other MT transmission...I can bang from one gear to the next just as fast as anyone on here, and just as fast as that video posted above, if not a shade faster. Granted, my truck is a POS 4-cyl that can't accelerate worth a crap, and when I do shift like that, I can feel the engine being dragged DOWN to the new RPM, but, I can easily shift that fast...

So, better explanation 5 steps in a manual...

1) Let of the gas
2) Push in the clutch (can be done at the same time as step 1, goal is to not let the engine "spin free", or drag)
3) Shift gears (not a lot can be done here to speed things up - physics!)
4) Let out the clutch
5) Give it gas (this can be done with step 4 if you don't mind burning your clutch)

Now, if you skip step 1, you're power shifting, and I bet you'd STILL be slower than the 7AT in shifting. You could save even more time if you don't care about getting a new transmission, and just slam it from gear to gear, if you're good with your throttle. I've done it with my bike when I got in a wreck and rode it home with a broken left wrist...can't work a clutch that way!

There's not much that you can do to make a shift between gears happen faster with a manual..you have a stick that you have move to get to the next gear, and synchonizers that DO slow the process down a bit.

7AT does what - release a band or a clutch pack? The difference with the 7AT in this car and most autos is that it's not trying to be smooth, it's getting the job done the way a sports car should. Snappy...

Red370

I believe he meant that your comparing your truck clunk box to a true sports car manual transmission, completely different gear ratios, shift throws, etc. If you cant shift faster than your 7AT, then my friend, you just arent that great of a shifter. Its ok to defend the car you drive, thats all fine and dandy, but the car will not be a solid track performer in stock form, the 6MT will always have the advantage on an auto X track. If its racing you want to do, leave it to the drags.

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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs

kannibul

Have you driven a 7AT Z...in manual mode?

I'm also not defending what I drive...I'm stating what seems to be contrary to what a lot of people think regarding the 7AT.


You realize that the average person's reaction time at a drag strip is around 500ms - right?

At least, those who don't try and anticipate the light.

JoeD

It still has a torque converter. "Manual mode" means squat as there is nothing special about the transmission. It's akin to "manually" shifting a Honda Accord between 1-2-3-D and thinking it makes a difference in performance.

Red370

I test drove one before mine, felt like an automatic.

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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs

shabarivas

^ Likewise... but I never would have gotten any non clutch short of a DSG

Endgame

Honestly Kannibul, my wife's CX7 acts just like the Z's AT. The Z's AT does shift however.

kannibul

I have a 7AT....I've owned many manuals and automatics, I know they work...

shumby

I like boobies

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Originally Posted by SAM@GTM
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kannibul

Stay on topic

Endgame

i like my wife's!!

Endgame

Sorry Kannibul.. I mean to type the Z's 7AT shifts FASTER!! My fault... But, my wife's CX7 acts just the same.

I am impressed that the Z's tranny shifts SO fast when copared to the other modern 'Sport' At's. However, I have my doubts that it would be good on the track/autoX.

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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SOLD MY Z MARCH 2018 - another Core OG moves on - new ride 2019 Z Corvette Grand Sport - no mods necessary but already have eyes on HFC and intakes LOL IT NEVER ENDS.