Nissan 370Z Forum  

7 speed good it just can not believe this.

Originally Posted by theDreamer Well -Find grey 5.0 Mustang owner - unzip pants - :gtfi: -'Acquire' keys -:gtfi: again -???? -Profit fix'd

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Forced Induction


Reply
 
LinkBack Thread Tools Display Modes
Old 05-12-2011, 03:52 PM   #136 (permalink)
A True Z Fanatic
 
m4a1mustang's Avatar
 
Join Date: Feb 2009
Location: Northern VA
Posts: 55,385
Drives: on two wheels
Rep Power: 6962
m4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond reputem4a1mustang has a reputation beyond repute
Default

Quote:
Originally Posted by theDreamer View Post
Well
-Find grey 5.0 Mustang owner
- unzip pants
- :gtfi:
-'Acquire' keys
-:gtfi: again
-????
-Profit
fix'd
__________________
- Steve
MAZOC Meet Thread
Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!)
LIKE us on Facebook!
m4a1mustang is offline   Reply With Quote
Old 05-12-2011, 03:52 PM   #137 (permalink)
A True Z Fanatic
 
theDreamer's Avatar
 
Join Date: Feb 2009
Location: Texas
Posts: 30,879
Drives: 370z
Rep Power: 4210
theDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond reputetheDreamer has a reputation beyond repute
Default

Quote:
Originally Posted by b1adesofcha0s View Post
Fixed
Quote:
Originally Posted by m4a1mustang View Post
fix'd
__________________
theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN
theDreamer's Silvia // URAS // GREDDY
Houston Zs // Facebook // Twitter // Instagram
theDreamer is offline   Reply With Quote
Old 05-12-2011, 03:55 PM   #138 (permalink)
A True Z Fanatic
 
b1adesofcha0s's Avatar
 
Join Date: Jan 2011
Location: MD
Posts: 40,963
Drives: HypeTrain Choo Choo!
Rep Power: 141
b1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond repute
Default

Quote:
Originally Posted by m4a1mustang View Post
fix'd


On my way
b1adesofcha0s is offline   Reply With Quote
Old 05-12-2011, 05:04 PM   #139 (permalink)
A True Z Fanatic
 
wstar's Avatar
 
Join Date: Mar 2009
Location: Houston, TX
Posts: 4,024
Drives: too slow
Rep Power: 3594
wstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond repute
Default

Quote:
Originally Posted by Blue370tt View Post
I am not getting into an opinion debate here: "but you have to face up to the fact that it is an AT, and it does come with an AT's shortcomings".....yes you're right....its still 1962 and AT's have'nt changed at all.
I didn't say they hadn't changed. They've improved greatly since 1962. So have MT's for that matter (much better synchronization, and of course now the automatic blipping on our cars). But it's still a fluid-drive transmission.

Think about it: There's a real reason that higher end manufacturers are putting in expensive, heavy systems like PDK and DSG (the true semi-automatics which are basically sequential manuals with automated clutches), instead of just using ATs with paddle shifters. ATs are fluid drive (lossy/inefficient) and slow to shift. The one nice thing about the AT system is the fluid torque multiplication, which really can help in the low RPMs.

In truly aggressive/track driving situation, the 6MT has the edge in shifting speed by a mile. Your quoted numbers are just the physical shifting time (e.g. in D-mode drag racing), you have to add on top of that the input delay on the M-mode system, which you're going to have to use for any serious driving (downshifting). A good 6MT will beat that any day. I've gotten used to the 7AT's shift delay to where I can compensate by shifting "early", but it took a while to get my brain to do that reliably. There are other things you have to re-teach your brain about too, like not dropping off the gas pedal until after you upshift instead of while upshifting (or else the 7AT gets confused and shifts extremely slow and clunky).

Quote:
As far as your awareness of Osiris tuning on the 7AT: Its a well known fact among any 7AT's considering FI (SC or TT) on this forum and is in many of the posts and threads about FI.
I wasn't aware this had been discussed elsewhere, but it's interesting. I'll have to talk to some local Osiris tuners and see if I can get them to play with the line pressure on mine. I'd love quicker shifts and engagements even without FI. Something tells me it will have no effect on the lag between shift button input and the start of the shifting process in M-mode though.

I love the 7AT, it's a great transmission for a mixed-use car, I just think you're taking it a little too far in claiming it's superior in every way to the 6MT. It clearly isn't.
__________________
7AT Track Car!
Journal thread / Car setup details
wstar is offline   Reply With Quote
Old 05-12-2011, 05:27 PM   #140 (permalink)
A True Z Fanatic
 
Z eliminator's Avatar
 
Join Date: Jul 2009
Location: Ontario Canada
Posts: 1,659
Drives: 370 Z 7AT Sports
Rep Power: 19
Z eliminator will become famous soon enough
Default

The reason that I am in 5th gear is that i have 4.08 gears in the diff. The factory diff is 3.33.
First and 2nd gear are just a blur. I also have 305 35 18 M/T drag radials on the car and i run them at 23 lb's of air. the traction is perfect on a prepaired drag strip. If the track has not been prepaired then they spin in the 1st to 2nd and 2nd to 3rd shift's
z
__________________
12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.
Z eliminator is offline   Reply With Quote
Old 05-12-2011, 09:34 PM   #141 (permalink)
Enthusiast Member
 
Blue370tt's Avatar
 
Join Date: Dec 2010
Location: Chattanooga TN
Posts: 279
Drives: Nissan Juke
Rep Power: 14
Blue370tt will become famous soon enough
Default

Quote:
Originally Posted by wstar View Post
I love the 7AT, it's a great transmission for a mixed-use car, I just think you're taking it a little too far in claiming it's superior in every way to the 6MT. It clearly isn't.
A few things:
1. Your car is not my car and I have no shift delay in M or D mode.
2. In stock form, with non pro drivers, the 7AT has proven to be faster.
(How can that be if....as you say.....ITS HEAVIER.....SHIFTS SLOWER....
and.....IS NOT AS EFFICIENT?????)
3. You cant imply/expect every 7AT car and driving experience to be the same as your car. I dont think I have the fastest 370....BUT....if you were to ride in MY CAR.....your opinion on the 7AT would change.
4. Z1 Motorsports has done several 370 GTM TT installs (including a Nismo). Mine was the first 370 they did and they EXPECTED the 6MT to be more stout when they finally TT'd one. To their surprise IT WASNT. According to John @ Z1: All things being = (boost, mods etc..) my car was faster/stronger. NOT MY WORDS....JOHNS.
5. You seem to only be able to see things from your cars point of view.....No where on this forum have I heard anyone else talk about a shift lag on their 7AT in M or D mode. Based on this, I think you need a tranny tune or that the issue is individual to your car.
6. If you need more information about the Osiris tranny tune you should call John @ Z1 motorsports for the details on how its done. He was the one who did my tranny tune.
7. This topic (tranny tuning) has been heavily discussed on this forum for many months/a year. Originally, it was passionately discussed because 1 person on this forum (Shumby) blew his tranny up when he added an SC to his 7AT 370. Because of this perceived possible issue, we were all (FI people) trying to do what we could to potentially prevent this. So again, while its new to you, this is about my 20th discussion on this.
8. Lastly, if you feel your tranny is inferior then go buy a 6MT. I dont and I am done with this conversation.
Blue370tt is offline   Reply With Quote
Old 05-12-2011, 09:58 PM   #142 (permalink)
Track Member
 
Billy02987's Avatar
 
Join Date: Jul 2009
Location: South FL
Posts: 975
Drives: 2010 GT-R
Rep Power: 19
Billy02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond repute
Default

I never understood this debate. I hate when people just sit here and talk about how they bought the automatic cause it was faster. Like .2 seconds really makes a difference in your everyday driving. If I was going for a straight drag car and that was it's only purpose then I would of went automatic but for being daily driven the 6mt is much more fun in my opinion. For somebody to sit here and say the 6mt is garbage because it's .2 seconds slower is ignorant I think.
__________________
2010 GT-R
2009 GTM TT 370Z-SOLD
Billy02987 is offline   Reply With Quote
Old 05-12-2011, 10:07 PM   #143 (permalink)
Enthusiast Member
 
Blue370tt's Avatar
 
Join Date: Dec 2010
Location: Chattanooga TN
Posts: 279
Drives: Nissan Juke
Rep Power: 14
Blue370tt will become famous soon enough
Default

Quote:
Originally Posted by Billy02987 View Post
I never understood this debate. I hate when people just sit here and talk about how they bought the automatic cause it was faster. Like .2 seconds really makes a difference in your everyday driving. If I was going for a straight drag car and that was it's only purpose then I would of went automatic but for being daily driven the 6mt is much more fun in my opinion. For somebody to sit here and say the 6mt is garbage because it's .2 seconds slower is ignorant I think.
I have NEVER SAID I bought the 7AT because its faster. I bought it THE DAY the 370 came out....so no one really knew. I dont drive my 370 every day and IT IS MOSTLY FOR DRAG RACING. Your statement "for being daily driven the 6mt is much more fun" is your opinion and I disagree......tell me that in traffic.
Blue370tt is offline   Reply With Quote
Old 05-12-2011, 10:12 PM   #144 (permalink)
A True Z Fanatic
 
wstar's Avatar
 
Join Date: Mar 2009
Location: Houston, TX
Posts: 4,024
Drives: too slow
Rep Power: 3594
wstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond repute
Default

Quote:
Originally Posted by Blue370tt View Post
A few things:
1. Your car is not my car and I have no shift delay in M or D mode.
That's physically impossible. You have a measurable delay on the shifts themselves (time to complete), which is what you'd be measuring in D-mode, and there's an additional reaction-to-input time in M-mode.

Quote:
2. In stock form, with non pro drivers, the 7AT has proven to be faster.
(How can that be if....as you say.....ITS HEAVIER.....SHIFTS SLOWER....
and.....IS NOT AS EFFICIENT?????)
It gets better times in the 1/4 mile in general, we've established that. It doesn't shift faster (* although I'll concede with tuning and upgrades, it might be faster than a slow-*** 6MT shifter in drag-race shift times in D), and it isn't capable of being as efficient at transmitting power in gear on average. Again, it's physics.

Quote:
3. You cant imply/expect every 7AT car and driving experience to be the same as your car. I dont think I have the fastest 370....BUT....if you were to ride in MY CAR.....your opinion on the 7AT would change.
I have no doubt with your line pressure upgrades, your 7AT is snappier than mine, that's really not at issue here.

Quote:
4. Z1 Motorsports has done several 370 GTM TT installs (including a Nismo). Mine was the first 370 they did and they EXPECTED the 6MT to be more stout when they finally TT'd one. To their surprise IT WASNT. According to John @ Z1: All things being = (boost, mods etc..) my car was faster/stronger. NOT MY WORDS....JOHNS.
I'll let that stand on its own. Don't know what to make of that statement really.

Quote:
5. You seem to only be able to see things from your cars point of view.....No where on this forum have I heard anyone else talk about a shift lag on their 7AT in M or D mode. Based on this, I think you need a tranny tune or that the issue is individual to your car.
Nope, mine's pretty normal. This was all hashed out a couple of years ago among the first 7AT owners. Most 7AT drivers aren't manual drivers, they really have nothing to compare to experience-wise.

Quote:
6. If you need more information about the Osiris tranny tune you should call John @ Z1 motorsports for the details on how its done. He was the one who did my tranny tune.
7. This topic (tranny tuning) has been heavily discussed on this forum for many months/a year. Originally, it was passionately discussed because 1 person on this forum (Shumby) blew his tranny up when he added an SC to his 7AT 370. Because of this perceived possible issue, we were all (FI people) trying to do what we could to potentially prevent this. So again, while its new to you, this is about my 20th discussion on this.
I've been away for a while, but I did catch up on all the problem threads about FI + 7AT. It's one of the reasons I dropped FI off of any immediate plans of mine, I don't want to deal with the additional tranny hassle.

Quote:
8. Lastly, if you feel your tranny is inferior then go buy a 6MT. I dont and I am done with this conversation.
The 7AT is factually inferior for track driving, line pressure upgrades or not. It's still a great tradeoff for me, and I like mine, as I've stated several times already. Get a grip.
__________________
7AT Track Car!
Journal thread / Car setup details
wstar is offline   Reply With Quote
Old 05-12-2011, 10:13 PM   #145 (permalink)
A True Z Fanatic
 
Jamaica's Avatar
 
Join Date: Mar 2010
Location: SoCal
Posts: 15,362
Drives: Under boost
Rep Power: 73
Jamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond repute
Send a message via AIM to Jamaica
Default

Quote:
Originally Posted by Blue370tt View Post
I have NEVER SAID I bought the 7AT because its faster. I bought it THE DAY the 370 came out....so no one really knew. I dont drive my 370 every day and IT IS MOSTLY FOR DRAG RACING. Your statement "for being daily driven the 6mt is much more fun" is your opinion and I disagree......tell me that in traffic.
Traffic ... Ughj
Jamaica is offline   Reply With Quote
Old 05-12-2011, 11:09 PM   #146 (permalink)
Track Member
 
Billy02987's Avatar
 
Join Date: Jul 2009
Location: South FL
Posts: 975
Drives: 2010 GT-R
Rep Power: 19
Billy02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond repute
Default

Quote:
Originally Posted by Blue370tt View Post
I have NEVER SAID I bought the 7AT because its faster. I bought it THE DAY the 370 came out....so no one really knew. I dont drive my 370 every day and IT IS MOSTLY FOR DRAG RACING. Your statement "for being daily driven the 6mt is much more fun" is your opinion and I disagree......tell me that in traffic.
And where did I say that YOU said that. I was just stating what I've read in other threads and people's general opinions they post up. You seem to only value your opinion anyways so what's it matter. Obviously everything is going to have it's pros and cons. And yeah, if you read my post I stated it was only my opinion but thanks for justifying. Again, for being DAILY DRIVEN a 6mt is more enjoyable in my opinion. Where I live and for my daily drive I don't encounter traffic at all so I have a blast. Again it is only my opinion and if I still lived in CT I would agree that the AT is more practical. No need to get offended.
__________________
2010 GT-R
2009 GTM TT 370Z-SOLD
Billy02987 is offline   Reply With Quote
Old 05-12-2011, 11:13 PM   #147 (permalink)
A True Z Fanatic
 
Jamaica's Avatar
 
Join Date: Mar 2010
Location: SoCal
Posts: 15,362
Drives: Under boost
Rep Power: 73
Jamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond reputeJamaica has a reputation beyond repute
Send a message via AIM to Jamaica
Default

if you lived in so cal with hours of traffic then you would understand....there is no way to avoid traffic.
Jamaica is offline   Reply With Quote
Old 05-12-2011, 11:38 PM   #148 (permalink)
Track Member
 
Billy02987's Avatar
 
Join Date: Jul 2009
Location: South FL
Posts: 975
Drives: 2010 GT-R
Rep Power: 19
Billy02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond reputeBilly02987 has a reputation beyond repute
Default

Quote:
Originally Posted by Jamaica@UAMotorsports View Post
if you lived in so cal with hours of traffic then you would understand....there is no way to avoid traffic.
I've never even been there and I understand lol. I feel so bad for you guys that get caught in rush hour out there. That would drive me up a wall, and yes I would be begging for an automatic if I did have to deal with that lol.
__________________
2010 GT-R
2009 GTM TT 370Z-SOLD
Billy02987 is offline   Reply With Quote
Old 05-13-2011, 12:51 AM   #149 (permalink)
A True Z Fanatic
 
KaienZ34's Avatar
 
Join Date: Oct 2009
Location: LA. not L.a.
Posts: 21,652
Drives: Z34 Tour/Sport
Rep Power: 178
KaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond repute
Default

I've had both the 6MT and 7AT 370 at the sametime. They both have pros and cons, the 7 was faster at the track mostly because it was easier for me to launch. This is a personal preference thing and there really isn't any reason to fight about it. I ultimately sold the 6MT, but it was because the wife refused to learn how to drive it and she pays the bills. IMO 6 more fun on open roads, 7 easier period.
__________________
"These Violent Delights Have Violent Ends"

KaienZ34 is offline   Reply With Quote
Old 05-13-2011, 02:33 AM   #150 (permalink)
A True Z Fanatic
 
b1adesofcha0s's Avatar
 
Join Date: Jan 2011
Location: MD
Posts: 40,963
Drives: HypeTrain Choo Choo!
Rep Power: 141
b1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond reputeb1adesofcha0s has a reputation beyond repute
Default

Quote:
Originally Posted by KaienZ34 View Post
I've had both the 6MT and 7AT 370 at the sametime. They both have pros and cons, the 7 was faster at the track mostly because it was easier for me to launch. This is a personal preference thing and there really isn't any reason to fight about it. I ultimately sold the 6MT, but it was because the wife refused to learn how to drive it and she pays the bills. IMO 6 more fun on open roads, 7 easier period.


Enjoy what you have and don't worry about proving whether or not its better than what others have.
b1adesofcha0s is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Theoretical top speed grimm1 Engine & Drivetrain 26 02-16-2015 05:33 PM
Top Speed Y-Pipe ddvette9 Intake/Exhaust 10 10-29-2010 04:44 PM
K1 speed ilive2win Track / Autocross / Drifting / Dragstrip 26 06-26-2010 09:26 AM
Top Speed bigaudiofanat Nissan 370Z General Discussions 93 06-18-2010 09:24 AM
Top Speed Exhauat, anyone see this yet ? chuckd05 Intake/Exhaust 4 02-16-2010 01:10 AM


All times are GMT -5. The time now is 01:34 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2