7AT vs 6MT

GingaBreadMan · 08-25-2009, 11:15 AM

First I want to apologize if this has already been posted. I have noticed plenty of heated discussions over this topic. I never considered opting for the 7AT since I want to make BIG HORSEPOWER (600-700whp). As far as I am aware the 6MT will handle that power more efficiently than the 7AT. With that being said I do know some AT with 600hp. I have noticed 6spd 370z getting more power with bolt-ons and ECU reflashes than 7AT. Are any of you guys with 7AT looking to make big power, or is it more for cruising and convenience? 6MT owners did you make your decision based solely on the immersion of the driving experience? Automatic transmissions are so good now you really don't need Manuals anymore. They hold gears until you are ready to shift and can shift faster than humanly possible. They have even made heel and toe obsolete (SRM). Is there any particular reason why u chose one over the other?

Lug · 08-25-2009, 12:27 PM

Quote:

Originally Posted by GingaBreadMan

First I want to apologize if this has already been posted. I have noticed plenty of heated discussions over this topic. I never considered opting for the 7AT since I want to make BIG HORSEPOWER (600-700whp). As far as I am aware the 6MT will handle that power more efficiently than the 7AT. With that being said I do know some AT with 600hp. I have noticed 6spd 370z getting more power with bolt-ons and ECU reflashes than 7AT. Are any of you guys with 7AT looking to make big power, or is it more for cruising and convenience? 6MT owners did you make your decision based solely on the immersion of the driving experience? Automatic transmissions are so good now you really don't need Manuals anymore. They hold gears until you are ready to shift and can shift faster than humanly possible. They have even made heel and toe obsolete (SRM). Is there any particular reason why u chose one over the other?

You are thinking of dual clutch transmissions. The 370Z uses a traditional "slush bucket" design but is one of the best executed ones ever. The shift speed on it is arround 500 milliseconds, far better than it's predecessor (or almost any other standard automatic I've ever heard of). Nissan has a dual clutch transmission in the GTR but it costs more than 1/2 a 370Z by itself.

Ryan@Forged · 08-25-2009, 01:09 PM

What are your plans for the car? If you really want to make 600-700 I would strongly suggest you go with the 6MT. We have done several high HP AT here, but they never operate as well as the 6MT. With that said we have yet to do a high HP 7AT 370z, but I would imagine it will behave similar to the 350z HR and G37s AT we have done.

Red370 · 08-25-2009, 03:00 PM

Quote:

Originally Posted by Ryan@Forged

What are your plans for the car? If you really want to make 600-700 I would strongly suggest you go with the 6MT. We have done several high HP AT here, but they never operate as well as the 6MT. With that said we have yet to do a high HP 7AT 370z, but I would imagine it will behave similar to the 350z HR and G37s AT we have done.

Agreed, high hp builds, stick with the 6mt.

GingaBreadMan · 08-25-2009, 04:01 PM

Quote:

Originally Posted by Ryan@Forged

What are your plans for the car? If you really want to make 600-700 I would strongly suggest you go with the 6MT. We have done several high HP AT here, but they never operate as well as the 6MT. With that said we have yet to do a high HP 7AT 370z, but I would imagine it will behave similar to the 350z HR and G37s AT we have done.

I purchased the 6spd sport and have 2k miles so far. I trying to be patient with the mods. The power is not enough for me so I plan on changing the exhaust, HFC and doing a ECU Reflash. Down the line I'm going to TT it, and possibly do internals if the power is still not sufficient. I want to make power while still having the vehicle reliable.

6MT · 08-25-2009, 04:03 PM

I agree, stick with the 6mt for high HP applications. Besides, it's more fun to drive a stick.

Red370 · 08-25-2009, 05:07 PM

Quote:

Originally Posted by GingaBreadMan

I purchased the 6spd sport and have 2k miles so far. I trying to be patient with the mods. The power is not enough for me so I plan on changing the exhaust, HFC and doing a ECU Reflash. Down the line I'm going to TT it, and possibly do internals if the power is still not sufficient. I want to make power while still having the vehicle reliable.

I wouldnt run a TT if you want "reliable" power, I think a supercharger would be right up your alley, daily driven juice, and great for time attack as well. If you want more power, a change of the pulley and a tune, and your there. 450-500whp should be easily realized.

GingaBreadMan · 08-25-2009, 08:41 PM

Quote:

Originally Posted by Red370

I wouldnt run a TT if you want "reliable" power, I think a supercharger would be right up your alley, daily driven juice, and great for time attack as well. If you want more power, a change of the pulley and a tune, and your there. 450-500whp should be easily realized.

Thx 4 the advice Red, just don't know if a supercharger will give me the power I want and once I go that route there's no turning back. At least with TT I know the gains would be substantial. TT's is probably 5yrs away so I can wait to see how other ppl are managing with it.

Red370 · 08-25-2009, 11:59 PM

Quote:

Originally Posted by GingaBreadMan

Thx 4 the advice Red, just don't know if a supercharger will give me the power I want and once I go that route there's no turning back. At least with TT I know the gains would be substantial. TT's is probably 5yrs away so I can wait to see how other ppl are managing with it.

I know of quite a few 1k+ whp supercharger builds, particularly on 5.0 Mustangs. It can be done, and a starter kit will be substantially less expensive than a TT setup, about 5-6k.

BanningZ · 08-25-2009, 07:19 PM

Go with the 6mt if this is going to be a track star.

GL on 600-700hp.

Nick911sc · 08-25-2009, 11:13 PM

Hey GingaBreadMan Where are you located in NY? I'm curious which dealership you got your 370z from.

chief_Roka · 09-18-2009, 01:37 PM

DEMAND SPARKS INNOVATION.

With so many modders taking a chance on autos these days.
U might c some durable aftermarket tuning parts become available for tranny tuning.
I think the 7at is the most interesting auto. N tho its a normal slushbox. Its management system is the hottest piece of tech since dsg n pdk.

So in conclusion... yes u may pull more power today!
But tomorrow may bring something new? The excitement over the 7at is strong enough to bring about new tuning parts for this tranny that may surprise u??

Ryan@Forged · 09-18-2009, 04:36 PM

From what I gather you are saying that in the future there may be upgrades available for the 7AT. Where this may be true I don't see the upgrades being released anytime soon and for that matter I doubt they will make the 7AT stronger than the 6MT. Furthermore there will always be more advances in technology. I would not choose a 7AT over a 6MT when planning to go high hp with the hopes of a company one day making upgrades for it, just my 2 cents.

08-25-2009, 11:15 AM	#1 (permalink)
GingaBreadMan Enthusiast Member Join Date: Jun 2009 Location: New York Posts: 313 Drives: 09 370z Sport 6spd Rep Power: 16	7AT vs 6MT First I want to apologize if this has already been posted. I have noticed plenty of heated discussions over this topic. I never considered opting for the 7AT since I want to make BIG HORSEPOWER (600-700whp). As far as I am aware the 6MT will handle that power more efficiently than the 7AT. With that being said I do know some AT with 600hp. I have noticed 6spd 370z getting more power with bolt-ons and ECU reflashes than 7AT. Are any of you guys with 7AT looking to make big power, or is it more for cruising and convenience? 6MT owners did you make your decision based solely on the immersion of the driving experience? Automatic transmissions are so good now you really don't need Manuals anymore. They hold gears until you are ready to shift and can shift faster than humanly possible. They have even made heel and toe obsolete (SRM). Is there any particular reason why u chose one over the other?

08-25-2009, 04:03 PM	#6 (permalink)
6MT A True Z Fanatic Join Date: May 2009 Location: ITU Zone 2 Posts: 22,459 Drives: Reliant Robin Rep Power: 1790	I agree, stick with the 6mt for high HP applications. Besides, it's more fun to drive a stick. __________________ Andrew 2009 370Z Sport/Touring 6MT sold 2013 Honda Civic Si coupe D/D

08-25-2009, 07:19 PM	#10 (permalink)
BanningZ A True Z Fanatic Join Date: Nov 2008 Location: nowhere Posts: 5,478 Drives: 06' Nismo Frontier Rep Power: 29	Go with the 6mt if this is going to be a track star. GL on 600-700hp. __________________ Become a Premium Member: Click HERE MB 06' Nismo VQ40DE

08-25-2009, 01:09 PM	#3 (permalink)
Ryan@Forged The370Z.com Sponsor Join Date: Dec 2008 Location: Marietta/Kennesaw, GA Posts: 1,527 Drives: Evo 8/Evo 9 MR/GTR Rep Power: 0	What are your plans for the car? If you really want to make 600-700 I would strongly suggest you go with the 6MT. We have done several high HP AT here, but they never operate as well as the 6MT. With that said we have yet to do a high HP 7AT 370z, but I would imagine it will behave similar to the 350z HR and G37s AT we have done.

08-25-2009, 11:13 PM	#11 (permalink)
Nick911sc A True Z Fanatic Join Date: Feb 2009 Location: Long Island, New York Posts: 1,698 Drives: 2010 Nissan GT-R Rep Power: 21	Hey GingaBreadMan Where are you located in NY? I'm curious which dealership you got your 370z from.

09-18-2009, 01:37 PM	#12 (permalink)
chief_Roka Base Member Join Date: Sep 2009 Location: BKLYN,NY/DFW,TX Posts: 166 Drives: '10 370z7at B.C. Rep Power: 16	DEMAND SPARKS INNOVATION. With so many modders taking a chance on autos these days. U might c some durable aftermarket tuning parts become available for tranny tuning. I think the 7at is the most interesting auto. N tho its a normal slushbox. Its management system is the hottest piece of tech since dsg n pdk. So in conclusion... yes u may pull more power today! But tomorrow may bring something new? The excitement over the 7at is strong enough to bring about new tuning parts for this tranny that may surprise u??

09-18-2009, 04:36 PM	#13 (permalink)
Ryan@Forged The370Z.com Sponsor Join Date: Dec 2008 Location: Marietta/Kennesaw, GA Posts: 1,527 Drives: Evo 8/Evo 9 MR/GTR Rep Power: 0	From what I gather you are saying that in the future there may be upgrades available for the 7AT. Where this may be true I don't see the upgrades being released anytime soon and for that matter I doubt they will make the 7AT stronger than the 6MT. Furthermore there will always be more advances in technology. I would not choose a 7AT over a 6MT when planning to go high hp with the hopes of a company one day making upgrades for it, just my 2 cents.