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Laguna Seca, C6 Z06 vs ACR Viper

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Old 05-30-2012, 10:58 PM
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Gary(SF)
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Default Laguna Seca, C6 Z06 vs ACR Viper

Lots of fun, great Vette turnout...

http://www.youtube.com/watch?v=BbvAH5t89YA

My car is stock except for StopTechs and RA1s.
Old 05-30-2012, 11:32 PM
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JETninja
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Very Nice!
Old 05-30-2012, 11:39 PM
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dvandentop
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awesome vid would die to get on there sometime!
Old 05-31-2012, 12:00 AM
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lemans
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Very cool, what's the display on the center by the radio, mph/lap time? Was all that noise debris hitting the underside of your car, or was the mic on the camera acting up?

Must be one hell of a ride going down the cork screw at LS.

Thanks for sharing.
Old 05-31-2012, 12:10 AM
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travisnd
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Would love to drive that track on day. I was born in CA and my parents have pictures of me as a toddler at Laguna Seca and Sears Point
Old 05-31-2012, 08:13 AM
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Gary(SF)
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Originally Posted by lemans
Very cool, what's the display on the center by the radio, mph/lap time? Was all that noise debris hitting the underside of your car, or was the mic on the camera acting up?

Must be one hell of a ride going down the cork screw at LS.

Thanks for sharing.
Center display is called a Rumblestrip, GPS-based lap timer that (after lap time disappears) gives real time delta between your best lap of the session and your current time. Useful for trying different lines, analyzing performance, etc.

The noise was mic clipping on the camera, got to find some way to block wind noise, but the mic is invisible...(Contour HD)
Old 05-31-2012, 12:05 PM
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63Corvette
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Great video. Thanks for posting.
Your driving looks good (I timed your laps at 1:41s), but I would have thought that a car with aero, like the ACR would have had significantly higher corner speeds. If your display was in mph, it showed the speeds for the corners as follows:
T2 44
T4 68/70
T6 65
Corkscrew 43/44
T9 71
T11 35/37

Presumably the ACR was on race tires (A6?), I notice that you are on RA-1s. Laguna Seca is a GREAT track.
Thanks,

Last edited by 63Corvette; 05-31-2012 at 12:20 PM.
Old 05-31-2012, 12:11 PM
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Gary(SF)
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Originally Posted by 63Corvette
Great video. Thanks for posting.
Your driving looks good (I timed your laps at 1:41s), but I would have thought that a car with aero, like the ACR would have had significantly higher corner speeds. If your display was in mph, it showed the speeds for the corners as follows:
T2 44
T4 68/70
T6 65
Corkscrew 43/44
T9 71
T11 35/37

Presumably the ACR was on race tires (A6?), but, could you tell us what tires y'all were on?
Laguna Seca is a GREAT track.
Thanks,
Yeah, the ACR was on Hoosiers, I was on RA1s. My fastest lap for the day by transponder was 1:39.517. I was probably just simply pushing harder than he was.
Old 05-31-2012, 12:23 PM
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63Corvette
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Thanks Gary, I revised my post after I saw that you had already mentioned your tires. BTW 1:39 is an excellent time
Old 05-31-2012, 02:11 PM
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hungryhippo
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Nice driving. Do you have to do anything to be under the sound limit?
Old 05-31-2012, 03:06 PM
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rmackintosh
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....heading to Laguna next week for first race in the new car....cannot wait!!!
Old 05-31-2012, 07:02 PM
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Gary(SF)
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Originally Posted by hungryhippo
Nice driving. Do you have to do anything to be under the sound limit?
Laguna is unpredictable. I don't know if it's the weather, or if they change the meter every now and then, or what, but I have run Laguna I think five times and only got popped for sound once. Stock exhaust. Other stock C6 Z06s report the same situation...normally pass, sometimes they don't.
Old 05-31-2012, 07:39 PM
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Short-Throw
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Originally Posted by 63Corvette
I would have thought that a car with aero, like the ACR would have had significantly higher corner speeds.
You are correct!

You'll see in the video Gary (nice job!) made up most gaps in the braking zones. The ACR was not trail braking -- this will always result in less front tire grip and slower cornering. You can tell by watching the brake lights. Most of the time the ACR was off the brakes way too early in the turns (mainly because he over-slowed the car and was back on the gas (unloading the front end) before the apex trying to make up for the slow corner speed.

The ACR is capable of higher cornering speeds. Maybe it was the driver's first time there?


Mike
Old 05-31-2012, 07:49 PM
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Originally Posted by Short-Throw
The ACR was not trail braking -- this will always result in less front tire grip and slower cornering.




Mike
This might be true for you car, but the ACR I drove was so loose under braking you would never trail brake it.

Steve A.
Old 05-31-2012, 07:58 PM
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Short-Throw
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Originally Posted by mountainbiker2
This might be true for you car, but the ACR I drove was so loose under braking you would never trail brake it.

Steve A.
I don't doubt you but it was probably a specific setup issue or one lacking with that given car. I've driven a few of them and they felt fine.
Old 06-01-2012, 10:41 AM
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Gary(SF)
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Originally Posted by Short-Throw
Maybe it was the driver's first time there?


Mike
No, he's local and runs a fair amount of track events at Laguna. Probably just being conservative.
Old 06-04-2012, 06:05 PM
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Bedouin
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Really fun video to watch Gary, & 1:39 is smokin...you guys caught my silver GS @ 7:40 in the vid. There was no mistaking that red ACR & yellow Z comin up fast in my rearview...
Next time I do Laguna it won't be on all-season tires

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Old 06-04-2012, 06:30 PM
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Originally Posted by ADVBedouin
Really fun video to watch Gary, & 1:39 is smokin...you guys caught my silver GS @ 7:40 in the vid. There was no mistaking that red ACR & yellow Z comin up fast in my rearview...
Next time I do Laguna it won't be on all-season tires
Enjoyed our conversation in the paddock, see you at another event soon I hope!

Gary
Old 06-04-2012, 07:55 PM
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Bedouin
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Great talking with you as well Gary, that was such a fun day out there...can't wait to go back!

Last edited by Bedouin; 06-12-2012 at 07:17 PM.
Old 06-05-2012, 12:46 AM
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TRBOKEV
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I'm thinking of tracking my car in the near future, and I have been checking out a lot of track video etc etc..

I notice that at first your passes were done only under the forward drivers signal but later were done with no signal and sometimes in turns. I thought that this type of passing is not allowed, but I'm assuming that every track/event is different; can you clarify. Thanks and great video!

Thanks.

Last edited by TRBOKEV; 06-05-2012 at 12:49 AM.


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