[shaftwhy]

I am studying the gear ratio and it looks I might need to use gear 2 - 7(or 3- 7) on track for various speed from 40mph to 160mph. Is that really the case?

[TrackClub]

Watch the Ring vid this will give ya a good idea.
But regardless, the shifts are auto...so it doesnt really matter?

[shaftwhy]

Originally Posted by TrackClub

Watch the Ring vid this will give ya a good idea.
But regardless, the shifts are auto...so it doesnt really matter?

Despite being auto I still like to shift it manually, not because I am faster, but because I like. Anyway, 2-7 gears are closer to a F1 car, lol.

[Norm Peterson]

Keep in mind that on a road course at the speeds where 2nd would be a viable gear choice based on mph alone, you'll be in a corner and probably won't have enough surplus rear tire grip to use 2nd to much (or any?) advantage over 3rd (especially with the ZL1's midrange torque). I think you'll be busy enough with 3rd/4th/5th/6th (with maybe some short-shifting to avoid shifts happening in the middle of a bend or kink).


If it matters, I'm not inclined to just drop an AT's gear selector in 'D' and leave the machine to its own devices either.


Incidentally, if you're working up estimated speeds in gears from the nominal tire size instead of from the mfr-listed revs/mile for that brand, model, and size tire, the speeds you calculate are going to be about 3% high. It's a tire tread circumferential compliance thing that none of the online calculators I've ever seen know anything about.


Norm

[shaftwhy]

Originally Posted by Norm Peterson

Keep in mind that on a road course at the speeds where 2nd would be a viable gear choice based on mph alone, you'll be in a corner and probably won't have enough surplus rear tire grip to use 2nd to much (or any?) advantage over 3rd (especially with the ZL1's midrange torque). I think you'll be busy enough with 3rd/4th/5th/6th (with maybe some short-shifting to avoid shifts happening in the middle of a bend or kink).


If it matters, I'm not inclined to just drop an AT's gear selector in 'D' and leave the machine to its own devices either.


Incidentally, if you're working up estimated speeds in gears from the nominal tire size instead of from the mfr-listed revs/mile for that brand, model, and size tire, the speeds you calculate are going to be about 3% high. It's a tire tread circumferential compliance thing that none of the online calculators I've ever seen know anything about.


Norm

Well, that was my original concern that too many gears might complicate things a little bit. Likely I won't use 2. But definitely need 7 for long straight speed which is higher than 145 mph for the tracks I am going. 3-7 is still quite a bit compare to 3-5 which is quite normal.

That does bring an interesting question: How is the power delivery for mid-turn flat out throttle & upshift? It seems mid-turn upshift is unavoidable with 10AT. If the power cut is too abrupt or long during upshift, it may very well just upset the balance and introduce oversteer. I am assuming 10AT is as good as DCT so power cut during upshift is minimal, since I haven't seen anybody complained about it yet.

[TrackClub]

Originally Posted by shaftwhy

Well, that was my original concern that too many gears might complicate things a little bit. Likely I won't use 2. But definitely need 7 for long straight speed which is higher than 145 mph for the tracks I am going. 3-7 is still quite a bit compare to 3-5 which is quite normal.

That does bring an interesting question: How is the power delivery for mid-turn flat out throttle & upshift? It seems mid-turn upshift is unavoidable with 10AT. If the power cut is too abrupt or long during upshift, it may very well just upset the balance and introduce oversteer. I am assuming 10AT is as good as DCT so power cut during upshift is minimal, since I haven't seen anybody complained about it yet.

Well in vids that ive watched when the car is in full auto all shifts seem seemless and incredibly well timed re corner entry and exit. Not sure how it all works in a manual mode.
If i tracked an A10 id just leave it in full auto. As factory drivers had and so did Randy when testing the car.

[Norm Peterson]

Originally Posted by TrackClub

... in full auto. As factory drivers had and so did Randy when testing the car.

Knowing why they left it in full auto would be worth far more than just knowing that they did. All of the reasons.


Norm

[TrackClub]

Excellent question Norm. I believe GM claims the A10 shifts faster then PDK but in an auto mode. Watching the Ring run of the ZL1 it us uncanny how the auto picks just the right gear for a specific corner. I suspect thats why an auto is faster than manual.

[Outahand]

I have done one HPDE track day in my ZL1. I did leave it in auto mode. Performance shift mode is a beautiful thing.

I have experimented with the paddles on the street and I did find my hands were not always in the proper place to use them in all turning positions.

My experience with this car and its A10 is that things happen pretty quick. This trans in auto mode does seem to always be in the right gear at the right time. I could not be more pleased with it.

If you do decide to get one of these cars I do not think the A10 will disappoint. By all means run it in manual mode and use the paddles if desired, but I think one would be hard pressed to do better than the auto mode.

My $.02

[Norm Peterson]

Originally Posted by Outahand

I have experimented with the paddles on the street and I did find my hands were not always in the proper place to use them in all turning positions.

My downloaded copy of the 2018 Camaro Owner's Manual indicates that automatics also have a +/- manual gate at the shift lever. Have you tried using that as well?


Norm

[TrackClub]

Thanks for posting the feedback. Well said. Indeed position of paddles would be problematic on track imo.
I also think GM developed this tranny with full auto calibration as its track performance target.

[Outahand]

Yes, I have used the shifter. or some reason I keep changing the mode when I do....

My experience is things happen pretty quick in this car when you are on it. I am happy keeping both hands on the wheel and letting the trans do its thing.

But that is just my experience in my car. I am no pro by any means. Just a hot rodder. Probably used to be quicker at that stuff before my 50th B-Day

[shaftwhy]

Originally Posted by Outahand

I have done one HPDE track day in my ZL1. I did leave it in auto mode. Performance shift mode is a beautiful thing.

I have experimented with the paddles on the street and I did find my hands were not always in the proper place to use them in all turning positions.

My experience with this car and its A10 is that things happen pretty quick. This trans in auto mode does seem to always be in the right gear at the right time. I could not be more pleased with it.

If you do decide to get one of these cars I do not think the A10 will disappoint. By all means run it in manual mode and use the paddles if desired, but I think one would be hard pressed to do better than the auto mode.

My $.02

Yep, not looking for faster than auto, just want the option to paddle shift manually.

I will be super happy if manual upshift mid-turn with WOT doesn't induce oversteer.

Shifting on street with steering wheel mounted small paddle shifter can be tricky due to hand position, but it would be slightly better on track. Obviously I like Ferrari style paddle shifter (column mounted big paddle shifter), but that's for another car in the future.

[Lafourche1]

I have spent a fair amount of time with the A10 in HPDE events. Simply put. in performance driving mode, there is no way that I can keep up with the way the A10 handles things. I have never felt caught out.

I have used the manual, stick shift when playing on the back roads. This seems to fit me and my old style driving very well. Coming back from Makers Mark with 8 other Camaros (1 Z06 A8), I found the manual mode to be a good bit of fun. Great for dicing in the mountains on the two lane roads. I didn't try the paddle shifters. For some reason, I have a bit of aversion to them.