A10 hold 6th to redline?

[U00mem9]

I have watched a bunch of youtube top speed runs with the new A10, and one thing that stands out is that the A10 always shifts to 7th before it reaches redline in 6th. Can anyone confirm or dispute this behavior. I realize paddle shift could be used to hold 6th, but it seems very odd that in auto it is short shifting right when it needs the high rpm.

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[gmupatriot]

I wish I had enough road and safe condition around my area to check this for you Wouldnt mind at all checking out the top speed.

 

[mejohn50]

I’m going on an autobahn run today. I’ll see if I can get the GoPro on the tach and speedo and see what happens.

 

[Dusten]

I have watched a bunch of youtube top speed runs with the new A10, and one thing that stands out is that the A10 always shifts to 7th before it reaches redline in 6th. Can anyone confirm or dispute this behavior. I realize paddle shift could be used to hold 6th, but it seems very odd that in auto it is short shifting right when it needs the high rpm.

At 135mph when it would be shifting, are you certain that the rpm's in 7th are at peak torque?
when I looked it up, peak torque is at 4600. Shifting at redline from 6-7 will actually drop the motor to 5850, which is a good cross between the climbing hp numbers and the falling torque numbers. Where is the car shifting into 7th?

 

[mejohn50]

No video, but can confirm 6-7 at WOT in normal drive mode shifts around 6800rpm. Still pulls just fine in 7th to the limiter. This is in a car with 3.15 rear gears.

My math on the A10 with 3.15 and stock tires says 7500rpm in 6th is 151mph, so still need a shift to hit the limiter at 155.

 

[Dusten]

No video, but can confirm 6-7 at WOT in normal drive mode shifts around 6800rpm. Still pulls just fine in 7th to the limiter. This is in a car with 3.15 rear gears.

My math on the A10 with 3.15 and stock tires says 7500rpm in 6th is 151mph, so still need a shift to hit the limiter at 155.

I did the math for my 3.55s

 

[drive_55_not]

Here's what I datalogged from a 1/4mile pass, This was auto shifting in Sport mode .

7th gear was commanded at 6900, I lifted at 6880.

 

[Notagain]

drives me bonkers the dash doesnt display gear like my AED tuned 2016 did. Im sure if i got a tune for the 2018 would too.

Either way it should from factory. Not just flash on the dash when you grab the paddle.

 

[Andy13186]

Ive hit my 6th gear limiter multiple times paddle shifting and its alot lower than the rest of the gears for me its about 125 mph like 6800 rpm, no idea why. I think ive done 155 in 7th.

 

[U00mem9]

Ive hit my 6th gear limiter multiple times paddle shifting and its alot lower than the rest of the gears for me its about 125 mph like 6800 rpm, no idea why. I think ive done 155 in 7th.

6th gear limiter? Are you saying that even when in S mode and shifting manually with the paddles the transmission will not rev past 6800 in 6th? Anyone want to speculate if this is a hardware protection thing? The rpm drop 6->7 is already larger than the one between other gears, and shifting 600rpm before redline just worsens that (on paper).

 

[Andy13186]

6th gear limiter? Are you saying that even when in S mode and shifting manually with the paddles the transmission will not rev past 6800 in 6th? Anyone want to speculate if this is a hardware protection thing? The rpm drop 6->7 is already larger than the one between other gears, and shifting 600rpm before redline just worsens that (on paper).

yes, it kills power at below redline paddle shifting or, somewhere below the redline in 6th. I made a thread about it a while ago. https://www.mustang6g.com/forums/threads/2018-redline-isnt-7500-in-some-gears-or-modes.111077/

It may have been 7300 not 6800 but it was below the actual redline for 6th gear it just killed power at that speed in that gear

 

[mejohn50]

Anyone want to speculate if this is a hardware protection thing? The rpm drop 6->7 is already larger than the one between other gears, and shifting 600rpm before redline just worsens that (on paper).

Not sure of why it’s programmed to do this, but I would guess that it has more to do with shifting at or near the speed limiter. On the 3.15 geared cars 7500rpm in 6th should be about 151mph. Shifting for four mph doesn’t make a ton of sense to me. They probably lowered the 6-7 shift point so you’d get 15-20mph out of 7th at WOT rather than 5mph. Then they probably just moved the exact same shift logic over to the 3.55 geared cars for simplicity.

As far as the rpm drop 6-7 shifting at ~6800rpm, it’s not a huge deal. Would shifting closer to 7500rpm make the car microscopically quicker though? Probably. But it’s nothing anyone is going to actually notice.

 

[Zinc03svt]

Stock tuning yes. Had my tuner sort that one out.

 

[U00mem9]

Stock tuning yes. Had my tuner sort that one out.

So that’s A10 tuning with the HPtuners hardware I assume?

Let me know how you have it set now. Shift point moved to 7400?

One of my questions is if the A10 is suffering at high rpm, is it going to be impossible to run 8000rpm redline like the manual? Joint development with GM...who doesn’t need anything over 6500rpm...kinda makes me wonder

 

[Zinc03svt]

So that’s A10 tuning with the HPtuners hardware I assume?

Let me know how you have it set now. Shift point moved to 7400?

One of my questions is if the A10 is suffering at high rpm, is it going to be impossible to run 8000rpm redline like the manual? Joint development with GM...who doesn’t need anything over 6500rpm...kinda makes me wonder

SCT BDX. There are tons of protection limiters in tcu stock. Anything much over 7500 rpm is a waste imo. Look at dyno sheets 18 manifold makes peak @ 7000.

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