7AT throttle lag
 

im sure this topic has been beatin like a dead horse.. but!
i kinda wish i test drove the 6MT along side my AT. anyone that drives an auto like me most likely can relate. the throttle lag when you mash the peddle is pretty bad in my opinion like a turbo is winding up. one of the reasons i bought the AT was because of reports that it is faster due to computer. so is the 6MT really responsive compared to the 7At for those who have driven both? i am now using trip more then ever even more so then the paddles. i thought the vvel was supposed to be super quick and responsive with valve lift at higher rpms. im no mechanic, but it seems you either have to mash it and get a delay but decent blast off lol. or use triptronic to get a more sporty feel but lack that MT control you need to throw the gears down.

... The only advantage in shifting times is lets say going from 6th to 3rd, otherwise the 7AT is faster...

And... Have you driven the 7AT? You have 100% the control of a manual. It keeps you in whatever gear you want

I have a thread probably lower on this page that talks about throttle response on the manual. With SRM disengaged, there is a little lag with throttle blips. Turning off VDC makes it better (don't recommend). I'm surprised this leads to a complaint with the auto though, since you don't rev match your downshifts... I test drove the auto, it's a good one and I'm confident in saying it's easier to drive fast in the 7AT.

You can do some thing that might help, like a UpRev tune. and a Under dreven pulley.:ugh2:

Well.. I was just kinda confused! On my first test drive "7AT" coming from an exterra.. Obviously there was a major difference!. [that being said] I have friends with fast cars! 2008 vette.. 2006 vette.. Ls1 gto goat. 2012 camaro ss. I have driven all of them! But the responsiveness of my now new 370 seems laggy. Not to bitch and complain... I'm just kinda not used to the trottle body being wide open and the lag. This is just my opinion of course! But the lag sucks. So I have been playing with triptronic and it feels a bit more sporty. But I thought the vvel was going to eliminate lag..... Guess not

There's electronic lag that a tune can take out

I think (correct me if I'm wrong) that your lag issue is when lets say you're cruising at 50 and you need to mash the pedal to overtake someone, and there is lag until it kicks into a lower gear?


If that's the issue, you're kinda SOL, just build that into your driving time

:icon18::icon18::icon18::icon18::bowrofl:

Gotta think 3-5 lane changes and cars ahead, just sayin

^^^How I'm interpreting it too.

@OP: If you want good response, drive it in manual mode and downshift before-hand. There should be practically no throttle lag in gear (I can't discern any while driving hard at least).

If you're driving in auto mode, then what you're describing would be better put as transmission lag. The Z has a conventional automatic that still takes time to shift despite being pretty well tuned imo. You could try driving in M for a while, maybe get used to it. Eventually you'll find it more natural and enjoyable since driving feels more direct.

Here you go....

http://www.the370z.com/forced-induct...de-review.html

Beaten? The bones of the horse were bleached by the sun some time ago.

Anyway, its not so much the choice of trans as it is the lack of an old fashioned throttle cable that's to blame.

The throttle response can be markedly improved, with excellent response via tuning. If you don't want to go that route, another option would be the several plug-n-play throttle response adapters (essentially, they are signal conditioners, that tell the ECU to open the throttle more given less throttle input), which I believe also correct this issue reasonably well.

Search and ye shall find :tup:

When I first got mine, I noticed a lot of lag as well. First thing I did was change out the air filters to K & N panels. Huge difference. Then changing to the Z1 silicone intake hoses decreased it again. It's not perfect now, but for a hundred bucks or so those two mods make a huge difference.

I read every post to make sure I wasn't going to double post but yes, if you must, THIS.

The 7AT increases valve pressure across the board when in M. That is why it'll jerk you around quite a bit if you haven't learned to feather the gas during certain shifts. It acts much like a manual. But that is also why the shifts are a little quicker and firmer.

And don't forget, ALL 7ATs are equipped with DRM (Downshift Rev-Match) regardless of having sports package or not.

Suffice to say, after giving M a shot a few times and getting adjusted to it I drive M all the time now. No, it isn't a manual. But it certainly acts like it. And to get a smooth drive you have to feather the gas like a manual. Kinda crazy, but it;s true. And for arguments sake, yes, I've drive quite a few 6MT 370s now.

And even though people hate on it because it is still a standard auto, what everyone fails to realize is that it still performs. I could care less if it a twin-clutch or PDK or DSG. All it means to me when someone says "It isn't a twin-clutch" is that they need acronyms and F1 car technology to be happy with their VW Golf even though there is little to no difference and few people track a Golf to the limit where that 16ms actually makes any impact on their lap times. Give me a break. :ugh2:

Honestly, if you can take a time-honored pile of crap and make it suitable for a sports car then you deserve some praise. I think they did a splendid job.

The lag I experience is what was described above - driving at 40 - 50 mph and need to jump on the throttle to pass someone. It's not throtle lag as the revs jump up to 6k immediately. It's the downshift that's lagging.

The easy solution is just drive with the paddles.

I don't understand this... If you're at 45, 7th gear, and need to go to 2nd... It will take you MUCH longer to shift yourself, than to leave the car in D and mash the pedal

Add a set of 4.08 gears to it /
it will shift really hard in MM .
and a lot quicker
i tuned mine on Cobb and it was really quick.

Correct me if I am wrong, but I think there are two different scenarios that are being combined into one. I'd say the first is OP wants to feel the power of his car/show that Mustang who is boss. In that case, downshift ahead of time and get on it. The second scenario would be OP wants to pass a car just drivin on the highway. In that case, yes I'd leave it in D and wait 2-3 seconds for the tranny to downshift. Just how I interpreted it. :tiphat:

I agree 100% with what you posted above, 2 scenarios with the same end conclusion! :tiphat:

You are correct Andrew if driving in auto mode. If I were using my paddle shifters, I wouldn't be in 7th gear at 45 mph, more likely fourth or fifth.

I've actually banged the rev limit trying to accelerate quickly in a traffic situation.

This is dumb. It's not lag. It's the engine down shifting gears and taking you to redline. If you drove in M, you can leave it in 7th to pass people or simply be in the right gear already.

How does everyone know my name? Lol
Or does EVERYONE forum stalk the way I do?


And THAT is the reason why I leave the car in D 90% of the time, and I wish the car had a sensor when flooring it to go, oh, the moron driver is in M, in 6th, moron driver needs to floor it, I'll downshift for him

People know your name because DEpointfive0 spelled backwards is Andrew...

Also, weren't you and I just talking about this on another thread?

SOLUTION: Stuck behind someone, tap the left paddle and it'll automatically go into 5th or 6th depending on your speed. Then you get no lag and you can easily fly around someone and slingshot. Shake & Bake.

I've just been using the m mode 100% of the time. No "lag"

I don't understand why someone would be in 7th gear at 45 mph. That's 5th (or maybe 6th) gear territory.

Anyway, the simple answer for the OP is: You can leave it in D and use the paddles to downshift quickly at need while staying in D.

The ECU allows this, and switches back from M to D after a few seconds.

That is the fastest way to drop a cog or two while remaining in D. Mashing the pedal is much slower.

2005-2009 Mustang! :tup:

Lag Test:

Put the car into M mode.
Drive until you are at 3500 rpm in 2nd gear.
Press the accelerator pedal (the pedal on the right) until it stops moving
Shift at 6500 RPM (rightmost paddle shifter) without letting off accelerator pedal
Lag or no lag in this situation?

:driving: :tup: :ugh2: :eekdance:

No it's not dumb; by definition it is lag. The question we are debating is the CAUSE of the lag.

The car redlines WHILE the transmission is hunting the gear; it is, in effect, in neutral.

Andrew - Being from Houston, I read your "intro" on Houston Z's FB page while you were in town. Sorry we didn't get a chance to meet.

I want my two minutes back I lost reading this thread. Attachment 73033

No lag in manual mode because you can control what gear you are in. In Auto mode, the tranny hiccups until it finds it's gear. I've never had this with any other auto trnasmission.

That's why I use the paddle shifters - problem solved. :tup:

No lag in manual mode because you can control what gear you are in. In Auto mode, the tranny hiccups until it finds it's gear. I've never had this with any other auto transmission.

That's why I use the paddle shifters - problem solved. :tup:

In D, the car shifts into 7th at 42-43, so maybe if you were cruising then an arse popped out and you needed to gun it around them, that's my scenario

Lol, maybe?


Anyways, honestly, I factor lag or downshifting INTO how I'm going to weave in and out of traffic. Worse comes to worse, if you can't get by... Left pedal to slow down

No it's kind of dumb. It's easy to see they car is simply downshifting. I drove my friends Z because he said there was "throttle lag." Nope, he just drives in auto and the car shifts down 3 or so gears when you mash the pedal at around 45mph.

It doesn't do that.

Yeah... I guess maybe it's the transmission gear hunting depending on how much you mash it. But a full peddle press feels like 1...2....3 take off. That's why I have been trying to get used to the m mode. And it's kinda weird I guess but I kinda prefer the shifter nob over the paddles. I typically drive with one hand on the wheel in a relaxed state, not both hands on the wheel flicking paddles. And yeah.. Lag is lag it's a delay.

And yeah I mean I own the car now and like it.. Don't want to get rid of it or anything just thought that it would be nicer if it was very touchy/responsive on throttle. Maybe like someone else stated I should get a tune because it does kinda bug me.

If you dont want the lag just tap the pedal really fast. Ive noticed this works, or let it rev up to the grand you are looking for and then try and smash it. If you do it right you might be able to get rid of the lag. If not, oh well atleast you tried. And yeah it is an uncanny approach :wtf2: :icon17:

I have a MT and the throttle lag was noticeable as well. I used Dynotronics in New Braunfels for my EcuTek tune, and the new throttle tables give a much better response. They're a forum sponsor on here. PM Joe and check out his threads in the tuning section of the forum :tup:

The car and throttle are super responsive. You're doing it wrong lol

Thanks jarblue! Will do. I'm dating a couple girls down that way near Texas state so that's not a big detour.

Really? Hm. I'll have to test that out. I've pushed it over to M at that speed and I could swear it goes to 5th, suggesting it was no higher than 6th in D, but I'll take your word on it.