Z28 vs GT3 991 Autoweek
#16
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#17
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#18
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Definitely some great engineering that went into the Z/28. However, just do a tire swap on the GT3 for similar rubber and I bet things would be a lot closer. Those tire compounds are a pretty serious advantage.
I'm just not into heavy front engined cars (in general) anymore, but GM does deserve some big kudos nonetheless. The suspension and brakes on that Z/28 are pretty incredible! For a 3900 pound+ car it can really boogie.
I'm just not into heavy front engined cars (in general) anymore, but GM does deserve some big kudos nonetheless. The suspension and brakes on that Z/28 are pretty incredible! For a 3900 pound+ car it can really boogie.
#20
I'm not sure if it was posted before, but Motortrend compared the Z to the GTR and Turbo S with Pobst driving. Z won (not really fair given the tire advantage), and the program director commented that the Z did a 7:25 in the dry at the Ring, matching their target - GT3.
#21
I'm not sure if it was posted before, but Motortrend compared the Z to the GTR and Turbo S with Pobst driving. Z won (not really fair given the tire advantage), and the program director commented that the Z did a 7:25 in the dry at the Ring, matching their target - GT3.
So "tiring" to keep hearing this. The Porsche had a "AWD and turbo advantage" the GT-R had "AWD and turbo advantage".
They ran OE vs OE and that is that. If Porsche or Nissan wants to up their game, then they can spec different tires and tune their suspension to those tires, as Chevy chose to do.
Purpose built cars are tuned to specific tires. Porsche will void your warranty for drivetrain failures if you are not running their N spec tires. 991 GT3 owners manual specifically states "No Slicks", so is that due to stickiness and if so then a Trofeo will void that warranty. Read your owners manual and ask your dealership Service Manager.
Enough with the excuses and unfairness claims. Sheesh. The outcome is what it is.
Last edited by savyboy; 03-30-2014 at 03:28 PM.
#22
Rennlist Member
I run 275/335 tires on my car. 997 chassis allowed a lot of things to be done to outrun most other cars in corners. So when i look at 991 my concern remains the same - i do not know what can be done there to improve it from stock version. Both z28 and vette are pretty much same chassis that will let to play with LCAs if needed and/or other suspension components, the way 991 is built now - i do not know what it will let to modify without causing major issues with all the ECUs and suspension programming they did.
It all looks very similar to what audi did with R8 car, it allows both mechanic and programmer to make it fast and it looks like a huge PITA to me. Good track sport car should be mostly analog in my opinion and should be modifiable.
It all looks very similar to what audi did with R8 car, it allows both mechanic and programmer to make it fast and it looks like a huge PITA to me. Good track sport car should be mostly analog in my opinion and should be modifiable.
#23
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Join Date: Apr 2005
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"Tire advantage"
So "tiring" to keep hearing this. The Porsche had a "turbo advantage" the GT-R had "AWD and turbo advantage".
They ran OE vs OE and that is that. If Porsche or Nissan wants to up their game, then they can spec different tires and tune their suspension to those tires, as Chevy chose to do.
Purpose built cars are tuned to specific tires. Porsche will void your warranty for drivetrain failures if you are not running their N spec tires. 991 GT3 owners manual specifically states "No Slicks", so is that due to stickiness and if so then a Trofeo will void that warranty. Read your owners manual and ask your dealership Service Manager.
Enough with the excuses and unfairness claims. Sheesh. The outcome is what it is.
So "tiring" to keep hearing this. The Porsche had a "turbo advantage" the GT-R had "AWD and turbo advantage".
They ran OE vs OE and that is that. If Porsche or Nissan wants to up their game, then they can spec different tires and tune their suspension to those tires, as Chevy chose to do.
Purpose built cars are tuned to specific tires. Porsche will void your warranty for drivetrain failures if you are not running their N spec tires. 991 GT3 owners manual specifically states "No Slicks", so is that due to stickiness and if so then a Trofeo will void that warranty. Read your owners manual and ask your dealership Service Manager.
Enough with the excuses and unfairness claims. Sheesh. The outcome is what it is.
+1.......
No one has any quantifiable data to know if or how much faster the Trofeo's R's are. Not to mention the Camaro:
- Is several hundred lbs heavier than everything but the GT-R
- Has no AWD or RWS
- Is a manual transmission, not PDK or DSG
- More drag than the slippery 911's and GT-R
The disadvantages far outweigh the advantages.
There are no excuses to be had.
#26
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Join Date: Feb 2006
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+1.......
No one has any quantifiable data to know if or how much faster the Trofeo's R's are. Not to mention the Camaro:
- Is several hundred lbs heavier than everything but the GT-R
- Has no AWD or RWS
- Is a manual transmission, not PDK or DSG
- More drag than the slippery 911's and GT-R
The disadvantages far outweigh the advantages.
There are no excuses to be had.
No one has any quantifiable data to know if or how much faster the Trofeo's R's are. Not to mention the Camaro:
- Is several hundred lbs heavier than everything but the GT-R
- Has no AWD or RWS
- Is a manual transmission, not PDK or DSG
- More drag than the slippery 911's and GT-R
The disadvantages far outweigh the advantages.
There are no excuses to be had.
#27
J
#28
In seriousness, I've certainly considered the big picture and experienced Porsche's finest first-hand. I simply present facts and opinionate with a minimum of unsupported conjecture. There is no doubt that I've put my money where my mouth is and that's never been secret.
So, I'd say, yes, my opinion is biased by experience and a reasoned consideration of the current state of track car affairs
#29
+1.......
No one has any quantifiable data to know if or how much faster the Trofeo's R's are. Not to mention the Camaro:
- Is several hundred lbs heavier than everything but the GT-R
- Has no AWD or RWS
- Is a manual transmission, not PDK or DSG
- More drag than the slippery 911's and GT-R
The disadvantages far outweigh the advantages.
There are no excuses to be had.
No one has any quantifiable data to know if or how much faster the Trofeo's R's are. Not to mention the Camaro:
- Is several hundred lbs heavier than everything but the GT-R
- Has no AWD or RWS
- Is a manual transmission, not PDK or DSG
- More drag than the slippery 911's and GT-R
The disadvantages far outweigh the advantages.
There are no excuses to be had.
I'm going to not post here for a while so as to let others carry the torch or extinguish it, as the case may be.
It's a new year and things are very, very different then they were just a short time ago. That's fine, indeed, great! As car-folks we are all winners for that
#30
That is a great follow-up and amplification of my original points. Thanks!
I'm going to not post here for a while so as to let others carry the torch or extinguish it, as the case may be.
It's a new year and things are very, very different then they were just a short time ago. That's fine, indeed, great! As car-folks we are all winners for that
I'm going to not post here for a while so as to let others carry the torch or extinguish it, as the case may be.
It's a new year and things are very, very different then they were just a short time ago. That's fine, indeed, great! As car-folks we are all winners for that
Jim