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Old 05-31-2018, 05:42 PM   #1
Idriveastickmaro
 
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A8 Vs M6

I'm curious since I drive a manual, how many of you also have a manual i4?

I'm also curious on everyone's thoughts of the rev hang.

Sidenote: Some days I wish I would have gotten an A8, (due to a previously torn MCL in my left knee)
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Old 06-01-2018, 09:06 AM   #2
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I test drove both and I might say that I hate how slow the gears shift in the A8. I really didn't like the feeling.

Rev hang on the M6 is correct.

I might be biased cause I only drive manual cars...
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Old 06-01-2018, 10:40 AM   #3
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In my experience, the auto isn't very happy with relaxed driving until the fluid is warm. If you're going to beat on it and drive aggressively, the trans will play nicely. But when it's cold, the first few shifts are a bit clunky, and it'll get hung up between the gears on medium-soft acceleration. It feels like it isn't sure what you're asking it to do until your foot is really in it.

I still like it though!

EDIT: When you're in attack mode, it upshifts amazingly fast.
But as Evil Bee said, that sluggishness when not pushing hard is probably attributable to the stock throttle mapping

Last edited by RedonBlackRS; 06-01-2018 at 07:58 PM. Reason: possibly misunderstood
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Old 06-01-2018, 12:19 PM   #4
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Quote:
Originally Posted by Camaro_QC View Post
I test drove both and I might say that I hate how slow the gears shift in the A8. I really didn't like the feeling.

Rev hang on the M6 is correct.

I might be biased cause I only drive manual cars...
I made the mistake of not driving the A8, but if the gears shift slow I can almost guarantee I wouldn't like it.

As far as the rev hang, I'm wondering if that could be tuned out to an extent (my tuner was able to on my WRX, which the rev hang was WAY worse in that)

I am also slightly biased as well, I have only ever had manual cars as well, but with my knee basically deteriorating, I may not have much of a choice.
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Old 06-01-2018, 01:01 PM   #5
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The A8 blows through 1st and 2nd on hard launches and doesn't seem to spend an absorbent amount of time in 3rd. It definately doesn't shift slow.
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Old 06-01-2018, 01:03 PM   #6
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Quote:
Originally Posted by Evil-Bee-NH View Post
The A8 blows through 1st and 2nd on hard launches and doesn't seem to spend an absorbent amount of time in 3rd. It definately doesn't shift slow.
How is the gearing when you aren't hard launching though? Like just coming off a normal stop light?
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Old 06-01-2018, 01:10 PM   #7
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It wants to shift but if your driving miss daisy on the pedal the drive-by-wire makes it feel sluggish. You can ease into the throttle after you get a feel for it and have a nice normal launch. I've been running my throttle controller on stock settings for a few weeks now on the low end launches i can almost seemingly defeat the lag in the system without slamming my foot down but after 4th gear you can feel it again if your not aggressive.
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Old 06-01-2018, 02:07 PM   #8
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It is not humanly possible to manually shift faster than the 8L45E. The gear ratio's are actually the same between auto and manual (327) The transmission ratio's are only marginally different 1st through 3rd gear.

M6-4.40/2.59/1.80................... A8-4.62/3.04/2.07 Not a huge difference there..
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Old 06-01-2018, 03:36 PM   #9
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I don't manually shift i keep her in drive 85% off the time
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Old 06-03-2018, 01:03 PM   #10
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Quote:
Originally Posted by Evil-Bee-NH View Post
I don't manually shift i keep her in drive 85% off the time

I switch to manual mode for 0-60 runs (or any other max effort runs)
My un-tuned car delivers better performance if I early shift 1-3.
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Old 06-03-2018, 01:45 PM   #11
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I only experience rev hanging when pushing the clutch in a split second before letting off the gas. If I let off the gas a split second before pushing in the clutch, the revs do not hang. When I first got the car, I would notice the revs hang more in sport mode than in tour or ice modes. Figured it was suppose to help with shifting for newbies
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Old 06-06-2018, 02:24 PM   #12
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Quote:
Originally Posted by RedonBlackRS View Post
In my experience, the auto isn't very happy with relaxed driving until the fluid is warm. If you're going to beat on it and drive aggressively, the trans will play nicely. But when it's cold, the first few shifts are a bit clunky, and it'll get hung up between the gears on medium-soft acceleration. It feels like it isn't sure what you're asking it to do until your foot is really in it.

I still like it though!

EDIT: When you're in attack mode, it upshifts amazingly fast.
But as Evil Bee said, that sluggishness when not pushing hard is probably attributable to the stock throttle mapping
I second this opinion. The stock trans tune is kind of wonky at medium to low throttle. But the thing snaps alive with aggressive driving.
There is a saving grace if you're willing to void the warranty and that is a custom trans tune. A couple of us have spent a lot learning the nuances of the tuning and have made great strides. Jason@jacfab even has a trans tuning writeup.

I have mine at a point where i can bark the tires on the 1-2 and 2-3 shifts but also shift silky smooth at low throttle.

BTW - the first shift of the day will always be a lurching disaster. Its an inherent flaw in the way the clutches fill after sitting for a long time. It's a known nuisance and affects all the 8L** units including Vettes and trucks.
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Old 06-25-2018, 03:15 AM   #13
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Quote:
Originally Posted by cooper1965 View Post
It is not humanly possible to manually shift faster than the 8L45E. The gear ratio's are actually the same between auto and manual (327) The transmission ratio's are only marginally different 1st through 3rd gear.

M6-4.40/2.59/1.80................... A8-4.62/3.04/2.07 Not a huge difference there..

So much this. 8L45 and the previous 6L45 in the ATS will both shift faster than the vaunted Porsche PDK. Now that is saying something. If the trans is shifting slow, then you're driving slow. At WOT, the autos are impossible to beat.
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