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Old 08-21-2019, 11:10 PM   #715
oldman


 
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Quote:
Originally Posted by Norm Peterson View Post
Thought that would get your attention (next go-round I'll post the lead/lag distance plot as well as the other two).

I'm entirely willing to let the numbers fall wherever they may. Anything after that is up to each individual (including me) to evaluate against what's important to him.


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Heck shen I win the lotto i’m buying you a manual 65 too. I still want a c8 bad. But I am going to have a hard time selling my m6 Camaro. Must resist...channel the “Norm”.
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Old Yesterday, 04:03 AM   #716
wnta1ss

 
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Quote:
Originally Posted by 6spdhyperblue View Post
What about taking a SS a10 mag-ride car and optioning 1le suspension (springs and sways wheelstires etc). Will this car be quicker around the track than a 1le 6spd?

I believe the ZL1 is quicker with the a10
Your example is not the same as the ZL1, because the SS when modded would still lack the eLSD, PTM, and 6-piston brakes that the 1LE has. From GM's testing, looks like the 1LE would still win. I say that because GM took an SS and added:
-GM lowering kit (stiffer springs and matching shocks)
-FE4 anti sway bars from a 1LE
-1LE tires/wheels
But the modded SS was still 2 seconds a lap slower around their track than the 1LE was. Doubting in this case that the slight gearing advantage of the A10 would make up that much time on that track.
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Old Yesterday, 06:06 AM   #717
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Quote:
Originally Posted by wnta1ss View Post
Your example is not the same as the ZL1, because the SS when modded would still lack the eLSD, PTM, and 6-piston brakes that the 1LE has. From GM's testing, looks like the 1LE would still win. I say that because GM took an SS and added:
-GM lowering kit (stiffer springs and matching shocks)
-FE4 anti sway bars from a 1LE
-1LE tires/wheels
But the modded SS was still 2 seconds a lap slower around their track than the 1LE was. Doubting in this case that the slight gearing advantage of the A10 would make up that much time on that track.
That car that was 2 seconds slower had the lowering kit without mrc. A different suspension. They commented on that point specifically. This car would have the same exact suspension

Gm’s comment:
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Old Yesterday, 06:25 AM   #718
wnta1ss

 
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Originally Posted by 6spdhyperblue View Post
That car that was 2 seconds slower had the lowering kit without mrc. A different suspension. They commented on that point specifically. This car would have the same exact suspension

Gm’s comment:
So you are assuming that the 1LE springs with MRC would be 2 seconds faster than the lowering kit springs that have matched shocks with them? Remember both are using the same anti sway bars. I'm very skeptical this is true, but you can believe it if you want to.
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Old Yesterday, 06:30 AM   #719
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mrc gets reprogrammed with the 1LE settings. Physically the shocks are the same part number between ss mrc and 1le.

It’s really going to come down to the elsd.

From what I read the 6 piston brakes don’t add performance until you cook the 4 piston units. If you are cooking them just add the 6pistons too, they’re a option
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Old Yesterday, 07:18 AM   #720
Norm Peterson
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A 50 millisecond shift time does buy you a little more of a distance gap. Not much lap time improvement over a 100ms shift time, though.



Disclaimer: keep in mind that this plot is just for illustration purposes. Any "exact" numbers would be more in line with about a 14-second ET.


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Old Today, 05:45 AM   #721
wnta1ss

 
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Quote:
Originally Posted by 6spdhyperblue View Post
mrc gets reprogrammed with the 1LE settings. Physically the shocks are the same part number between ss mrc and 1le.
Yes, if you have a 2017 or newer SS with MRC, then you can buy the 1LE suspension kit and GM will reprogram your MRC for the new springs. The lowering kit accomplishes this by including shocks that are valved for the new springs for non-MRC cars. My point is, both methods are probably very close to each other, because both are lower/stiffer springs and changing of the damping to go with it.
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Old Today, 07:18 AM   #722
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Quote:
Originally Posted by Norm Peterson View Post
I'm only finding "under 0.1 seconds" for a DCT (Jalopnik and Motorauthority specifically for the C8, and Tremec as a general sanity check). Not "0.01 seconds".

If you can provide a reference for 0.01 seconds, I'll re-run the same sim with that or any other specific shift time you can find (only takes a couple of minutes including printscreening, cropping, uploading and what-not). Otherwise I may run 50 milliseconds (0.050 seconds).


Norm
My appology Norm, you are correct and I am wrong on the shift times. I re-viewed the GM video that I'd watched and they said <100 millisecond.
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