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C7 for the track?

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Old 08-13-2018, 07:56 PM
  #21  
Deepdiver
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It's not a money thing...its just a question lol. Thanks for replying.
Old 08-13-2018, 09:08 PM
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rb185afm
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Originally Posted by thekid96
I'm in SoCal so it's pretty hot, part of why I ask for input, as I see the C7's having issues at the track frequently.
Any thoughts on tire wear for r comp or R7's? I only get 5-6 sessions with my current car and looking at alternatives that are easier on tires, but doesn't sound promising.
In SoCal I’d advise a GS. If going Z06 your fuel costs will go up as you will need min 100 octane to avoid pulling timing. My understanding is on our crap 91 Ca octane, your already down 50 hp. I suspect one reason Ca Z06’s have issues is we are fighting high heat and **** gas. Not a good combo in a super charged track car.

Im getting 3 days out of my front and 5 days out of my rear R7’s. I have a GS.

Last edited by rb185afm; 08-13-2018 at 09:36 PM.
Old 08-13-2018, 09:42 PM
  #23  
thekid96
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Dang, I wish I could get 3 days out of any tires.
Old 08-14-2018, 12:44 AM
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I can't imagine you'd have a problem getting 2-3 days out of Hoosiers
Old 08-14-2018, 08:36 AM
  #25  
dfettero
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Yes RBF 600

Originally Posted by Deepdiver
Did you guys have to change out your DOT3 brake fluid to DOT4?
Old 08-14-2018, 03:01 PM
  #26  
Poor-sha
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As Bill said, between my 2015 and 2017 Z06 I have close to 150 track hours on that platform and have never had the car overheat, including in temps in the upper 90's. I did a very detailed breakdown on the difference between the GS and the Z06 at VIR in the below video but the net is that it's about 3-4 seconds. I get about 3.5 track hours out of a set of scrubs, 11 gallons in 20 minutes on track, and about 5 days on front pads with the AP Racing kit. I run Castrol SRF for brake fluid and have never boiled the fluid.

The GS is definitely a nice car and if you don't care about the extra 3-4 seconds a lap you'll save money on fuel and brakes for sure.


Old 08-14-2018, 03:14 PM
  #27  
village idiot
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Did you notice the weight difference much?
Old 08-14-2018, 03:44 PM
  #28  
Poor-sha
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Originally Posted by village idiot
Did you notice the weight difference much?
I wasn't driving the GS but I don't notice the extra weight in the ZR1 coming from the Z06.
Old 08-14-2018, 04:20 PM
  #29  
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Originally Posted by Poor-sha
I wasn't driving the GS but I don't notice the extra weight in the ZR1 coming from the Z06.
Interesting, thanks.
I think I'm going to put my car on a diet. Seats, battery, rotors (already have wheels). It's about all I can do while forcing GM to upkeep my car for the next 95k miles of track use. I wonder if I'll notice any difference dropping 125lbs or so (and that's probably optimistic).
Old 08-14-2018, 07:13 PM
  #30  
Poor-sha
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Originally Posted by village idiot
Interesting, thanks.
I think I'm going to put my car on a diet. Seats, battery, rotors (already have wheels). It's about all I can do while forcing GM to upkeep my car for the next 95k miles of track use. I wonder if I'll notice any difference dropping 125lbs or so (and that's probably optimistic).
That sounds like a reasonable plan. I think a lot has to do with how the car is setup too. I know that I can feel a much bigger difference from a 150 lb to a 300 lb passenger than I can from no passenger to a 150 lb passenger.
Old 08-15-2018, 11:03 PM
  #31  
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Since you guys consume large amounts of tires, who changes out your tires for you? I could barely find one person in my entire metro area that could change out a 335 Cup 2. I always fear the wrenching on my car if I track it. Always having to change oil, brakes, and tires all the time.The oil and brakes at least I can do. Tires obviously need a special machine. I have a new Grand Sport so that's what I would track if I did.

Last edited by Zjoe6; 08-15-2018 at 11:07 PM.
Old 08-16-2018, 07:45 AM
  #32  
911Hunter
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Originally Posted by jonparks
Well you'll need a stick and an NA engine to be safe. I've over heated a zo6 and my z51 auto. It really pisses me off that I can't run a 20 min session with out going into protect mode on the transmission.
For sure the N.A. Grand Sport would be a great option for the track with a manual transmission and ZO7 package
Old 08-16-2018, 07:46 AM
  #33  
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Originally Posted by Mike.D
If you have the money, buy a Viper. TA to be exact. If not, make sure you get at least a 2017 M7 and don't track June to August.
Or better yet the top Viper ACR
Old 08-16-2018, 08:09 AM
  #34  
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The automatic transmission on my '14 Z51 easily overheated on a DE event. For track stay away from the C7's automatic transmissions.
Old 08-16-2018, 10:39 AM
  #35  
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Originally Posted by Zjoe6
Since you guys consume large amounts of tires, who changes out your tires for you? I could barely find one person in my entire metro area that could change out a 335 Cup 2. I always fear the wrenching on my car if I track it. Always having to change oil, brakes, and tires all the time.The oil and brakes at least I can do. Tires obviously need a special machine. I have a new Grand Sport so that's what I would track if I did.
i just drive my car to discount tire and have them install the tires. I don't run slicks though.
You can just bring them the wheels if you ran slicks.


Last edited by village idiot; 08-16-2018 at 06:03 PM.
Old 08-16-2018, 10:47 AM
  #36  
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Originally Posted by Poor-sha
As Bill said, between my 2015 and 2017 Z06 I have close to 150 track hours on that platform and have never had the car overheat, including in temps in the upper 90's. I did a very detailed breakdown on the difference between the GS and the Z06 at VIR in the below video but the net is that it's about 3-4 seconds. I get about 3.5 track hours out of a set of scrubs, 11 gallons in 20 minutes on track, and about 5 days on front pads with the AP Racing kit. I run Castrol SRF for brake fluid and have never boiled the fluid.

The GS is definitely a nice car and if you don't care about the extra 3-4 seconds a lap you'll save money on fuel and brakes for sure.

https://www.youtube.com/watch?v=4nVb...9U-lPZ&index=4

https://www.youtube.com/watch?v=3jWN...-l3Wh4zN9U-lPZ

Nothing better than starting my day watching this.
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Old 08-16-2018, 06:01 PM
  #37  
Bill Dearborn
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Originally Posted by Zjoe6
Since you guys consume large amounts of tires, who changes out your tires for you? I could barely find one person in my entire metro area that could change out a 335 Cup 2. I always fear the wrenching on my car if I track it. Always having to change oil, brakes, and tires all the time.The oil and brakes at least I can do. Tires obviously need a special machine. I have a new Grand Sport so that's what I would track if I did.
It can be hard getting the large Michelin ZP tires to seat once the tires are on the rim. Some shops can't seem to get the bead to snap into place while others don't seem to have a problem. However, if you use Pirelli Slicks, Hoosiers, R888s then you should find that most any shop can do the work. I would find a locally run shop that sells a lot of tires and see if they will mount your tires. When I lived in upstate NY I had a locally owned tire distributor that was the area distributor for Cooper Tires that mounted my race tires. They didn't charge a lot and the guy doing the mounting worked on a NASCAR Modified Pit Crew and knew about mounting race tires. Each time I took a set to them I would get them back marked with the stagger sizing so I knew which tire would work best in a turn situation. Try and find that kind of knowledge at one of the big tire company stores. You can get Pirelli Slicks pretty much locally for you from GT Racing Tires http://gttrackdays.com/?doing_wp_cro...93273925781250 which is located in WI.

Bill

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Old 08-16-2018, 08:36 PM
  #38  
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Originally Posted by Bill Dearborn
It can be hard getting the large Michelin ZP tires to seat once the tires are on the rim. Some shops can't seem to get the bead to snap into place while others don't seem to have a problem. However, if you use Pirelli Slicks, Hoosiers, R888s then you should find that most any shop can do the work. I would find a locally run shop that sells a lot of tires and see if they will mount your tires. When I lived in upstate NY I had a locally owned tire distributor that was the area distributor for Cooper Tires that mounted my race tires. They didn't charge a lot and the guy doing the mounting worked on a NASCAR Modified Pit Crew and knew about mounting race tires. Each time I took a set to them I would get them back marked with the stagger sizing so I knew which tire would work best in a turn situation. Try and find that kind of knowledge at one of the big tire company stores. You can get Pirelli Slicks pretty much locally for you from GT Racing Tires http://gttrackdays.com/?doing_wp_cro...93273925781250 which is located in WI.

Bill
Discount tire seems to never deny anyone. Or any tire.
Old 08-16-2018, 10:13 PM
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Originally Posted by phantom1
Why at least a 2017?
cooling has been improved in 2017
Old 08-17-2018, 08:03 PM
  #40  
Zjoe6
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Originally Posted by BrunoTheMellow
Discount tire seems to never deny anyone. Or any tire.
They were going to fix my rear tire with nail in it for free. It's their policy. Then they ripped the bead removing the tire. Bought me a new one no fuss at all. Had another place mount it.


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