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7AT Faster 0-60 and 1/4 mile than 6 MT??

Originally Posted by YellowSpeed Thanks to everyone for their input. It does seem that the 7AT is faster overall. Nice to know... Could someone provide more details into the AT

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Old 11-19-2010, 08:09 AM   #1 (permalink)
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Thanks to everyone for their input. It does seem that the 7AT is faster overall. Nice to know...

Could someone provide more details into the AT transmission? I thought that it was a dual clutch...

Let the information flow continue...
It's not a dual clutch. It's a typical slush-box with a torque converter. It's just better than most every other slush-box out there.

Just be advised that if you want to go FI you should get the MT. The 7AT is very limited in how much power it can handle and, as of now, there's not much readily available to help it hold more power. From the factory it is rated to a maximum 298 lb-ft, and recently we had one grenade that was pushing only 350 lb-ft via supercharger.

The 6MTs are rated to 332 lb-ft from the factory but with a clutch/flywheel upgrade they can take a good bit more.
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Old 11-19-2010, 03:45 PM   #2 (permalink)
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It's not a dual clutch. It's a typical slush-box with a torque converter.
Not exactly. It also has full lock up for a solid connection in 2-7 gear, which means significantly better power transfer. That's why the two trans put down about the same numbers on the dyno.

Traditonal slush boxes are just that -- they only allow fluid coupling (or only have lock up in the tallest gear).

Moroever, if memory serves, Nissan tuned it to accomplish gear changes in < .5 sec under load.
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Old 11-19-2010, 06:03 PM   #3 (permalink)
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Not exactly. It also has full lock up for a solid connection in 2-7 gear, which means significantly better power transfer. That's why the two trans put down about the same numbers on the dyno.

Traditonal slush boxes are just that -- they only allow fluid coupling (or only have lock up in the tallest gear).

Moroever, if memory serves, Nissan tuned it to accomplish gear changes in < .5 sec under load.
Lol, Ford, GM, and everyone else had that in the mid/early 90's. In the crown-vic, mustang, etc. It's nothing new.

Slushbox.
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Old 11-20-2010, 08:03 PM   #4 (permalink)
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Lol, Ford, GM, and everyone else had that in the mid/early 90's. In the crown-vic, mustang, etc. It's nothing new.

Slushbox.
Lock up in every gear after 1st? News to me, but okay.
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Old 11-20-2010, 09:43 PM   #5 (permalink)
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Lock up in every gear after 1st? News to me, but okay.
yes, usually its lock-up in high gear only on typical american cars.
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