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-   -   7AT, 7th gear: Cruising or Top Speed? (http://www.the370z.com/nissan-370z-general-discussions/66235-7at-7th-gear-cruising-top-speed.html)

EndyKwon 01-29-2013 02:21 PM

7AT, 7th gear: Cruising or Top Speed?
 
Couldn't find anything in the search function, so slay me if this did exist!

But yeah, just wondering if the 7th gear is used for cruising or top speed. My commute on the freeway averages around 70~80mph and I noticed that even on 7th gear, the RPMs lick 3K. Constant 3000 RPM seems a bit high for cruising in my opinion.

:driving:

DEpointfive0 01-29-2013 02:24 PM

Quote:

Originally Posted by EndyKwon (Post 2137176)
Couldn't find anything in the search function, so slay me if this did exist!

But yeah, just wondering if the 7th gear is used for cruising or top speed. My commute on the freeway averages around 70~80mph and I noticed that even on 7th gear, the RPMs lick 3K. Constant 3000 RPM seems a bit high for cruising in my opinion.

:driving:

Yeahhhhhh... But that's just the way it is... The AT hits top speed of 155 in 5th gear

EndyKwon 01-29-2013 02:29 PM

Quote:

Originally Posted by DEpointfive0 (Post 2137183)
Yeahhhhhh... But that's just the way it is... The AT hits top speed of 155 in 5th gear

Wow, then this 7th gear is pretty silly. >_>

jpritche 01-29-2013 02:32 PM

Surprisingly, I get better gas mileage not using 7th. The interstate I commute on daily is very hilly which causes you to basically floor it to maintain speed going up a semi-steep hill at 80mph. I find that if I stay in 5th I end up getting better MPG. YMMV.

Also, the FI exhaust in 7th up a big hill is fairly annoying on the inside :icon17:


Note: On normal roads, I get better gas mileage using 7th. On the hilly interstate is the only place it is worse.

DEpointfive0 01-29-2013 02:33 PM

Quote:

Originally Posted by EndyKwon (Post 2137193)
Wow, then this 7th gear is pretty silly. >_>

It's because of 7th we get better gas mileage than MTs... Because 7th can be engaged at 42-43MPH

luigi90210 01-29-2013 03:46 PM

Quote:

Originally Posted by EndyKwon (Post 2137176)
Couldn't find anything in the search function, so slay me if this did exist!

But yeah, just wondering if the 7th gear is used for cruising or top speed. My commute on the freeway averages around 70~80mph and I noticed that even on 7th gear, the RPMs lick 3K. Constant 3000 RPM seems a bit high for cruising in my opinion.

:driving:

i can tell you that i can hit 155 in 5th on my MT

6th on MT and 7th on AT is really just overdrive, so its for gas savings

isayimandrew 01-29-2013 06:11 PM

Quote:

Originally Posted by luigi90210 (Post 2137343)
i can tell you that i can hit 155 in 5th on my MT

6th on MT and 7th on AT is really just overdrive, so its for gas savings

thats what i was gonna respond with. the last gear for a 6MT or 7AT is an overdrive gear for gas purposes. You could technically go without using those gears and still be fine.

Jordo! 01-29-2013 07:20 PM

Overdrive to improve economy and allow for better spacing of other 6 gears.

I only use it for highway cruising over 70 or 80 MPH.

DarkJak 01-30-2013 02:09 AM

5th on the 7AT and 6MT are 1.0 ratio, so 6th and 7th are technically both overdrive. Ever notice how the car shifts into 5th automatically if you switch into manual mode after cruising in auto? 6/7 aren't meant for acceleration, purely for fuel economy.

Nailzs 01-30-2013 05:27 AM

I see about 2400 RPM in 7th gear at 70 MPH.

CDepp 01-30-2013 07:15 AM

Quote:

Originally Posted by luigi90210 (Post 2137343)
i can tell you that i can hit 155 in 5th on my MT

6th on MT and 7th on AT is really just overdrive, so its for gas savings

Quote:

Originally Posted by DarkJak (Post 2138184)
5th on the 7AT and 6MT are 1.0 ratio, so 6th and 7th are technically both overdrive. Ever notice how the car shifts into 5th automatically if you switch into manual mode after cruising in auto? 6/7 aren't meant for acceleration, purely for fuel economy.

What is this sorcery you speak of???

Rod Saraiva 01-30-2013 07:58 AM

7th on AT is for gas savings.

I could run 180mph at 6th on a TT 7AT, but I did not filmed.
I don't know what is the limit of the automatic transmission, for this reason I don't give more.

I'll try to record the next.

Sorry my bad english :P

RandyD 01-30-2013 08:07 AM

mine like to shift to 6th at around 110

DEpointfive0 01-30-2013 10:33 AM

Quote:

Originally Posted by Rod Saraiva (Post 2138277)
7th on AT is for gas savings.

I could run 180mph at 6th on a TT 7AT, but I did not filmed.
I don't know what is the limit of the automatic transmission, for this reason I don't give more.

I'll try to record the next.

Sorry my bad english :P

The limiter on 7AT is 155MPH


And god bless you to buy a 370Z in Brasil, if I come can I stay with you???

(to our non Brasilians, the import tax is sonething like 500%, and you have to buy a brand new car... Can you say $200k 370Z?)

kidkotic2001 01-30-2013 01:09 PM

Quote:

Originally Posted by Nailzs (Post 2138226)
I see about 2400 RPM in 7th gear at 70 MPH.

:iagree:


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