after doing some searching around to see who drove the GTR i couldnt find that. but i did find some weird stuff. such as they used a different style suspension that “might be on the American and European GTR but not sure if it will be” and a slick tire on the car to. is that how Nissan almost droped a full 10 seconds at the ring?
By the way, I saw a GTR on the road last weekend.
Friday night we were on the way up 81 like 30 miles outside of Carlisle, a Red GTR was going south…
Pretty sexy… but then I got to carlisle and saw the ZR1 and I forgot all about that rice rocket 
Our buddy we stayed with in Shippensburg knows the guy, first one on the east coast, bought it somewhere in Baltimore, for $140,000
the ring testing is shady… you never know if the car was hopped up or not or what tires they used, etc
I do know the Z06 did 7:42 on run flats which is damn impressive. I bet it had mid 7 30’s easily on good tires or low 30’s on race R compounds
x2
GM is sayin they tested the ZR1 with the stock michelin tires
they sport the Michelin Pilot Sports which are a great tire. Pricey but its worth it
at the gm heads already making excuses why there beloved car won’t have the fastest time around the “ring”.
it does 7.26 > 7.29:wtf:
Im not sure if that 100% accurate, but the GTR vspec is supposedly doing laps in 7:25.
oh i dont care, i was just curious as to how before the GTR was only doing 7:38s then it drops almost 10 full seconds
you cant read for shit…there are no statements like that in this thread. Only a rumor on how the GTR wasnt factory spec’d but thats only a rumor. tool :wackit:
this looks like an excuse as to why the vette didn’t get into the 7:30’s :dunno:
plus, it’s very ricer of you to benchrace how well the car would do with different tires. :doh:
LOL, who knows… The nurburgring is just a giant pissing contest for car makers. Honestly, both cars are insane performers and are both insanely overpriced.
It basically all comes down to what you like, rather than which one is 1 second faster on a racetrack none of us will probably ever drive on.
Nissan has a history of lying with past GTRs at the ring… all of which put up remarkable lap times that were not able to be duplicated by factory cars. Take a look at the R33 skyline, it was the first car to break the 8 minute barrier on the ring… but could never be repeated. Go figure
Look at the initial times reported by the GTR in the 1/4 mile:
11.6 @ 124 iirc versus the latest test that it ran a 12.6 @ 111 mph.
The initial testing of GTRs historically have been much faster than achievable by ordinary and unmolested production cars, where as cars such as the z06 or 911 turbos, etc. have been able to nearly replicate the hot lap records that the car manufacturers claim. They’ll even say this on skyline forums FYI.
Also, the GTR’s warranty is voided if the VDC (traction control) is turned off - which is the only way to get the car into the ‘launch mode’
If I’m right about nissan using ringers for their initial testing and the car is actually much slower than advertised, then the car is going to be the biggest failure to live up to its hype for as long as I can remember.
no dickhead, its just a statement showing discrepancies and variances in testing so its hard to compare cars on the ring.
Its not “ricer” to guestimate times of cars with similar tire conditions. Thats the only way to make it fair if both cars were on the same rubber.
Why do you bother posting here? you contribute nothing as you clearly know very little about anything. Save yourself the trouble and just stop trolling. this section is a car discussion forum and your contributions are more suitable for offtopic and flame/call-out subsections of the forum. Get out of here
I may not know a lot about an old iroc, but I know my fair share about real cars.
But this thread is not really about cars, it’s about manufacturers getting a hardon for the fastest lap time around a track.
And why do I bother posting… simply, to piss you off. 
Dumb overgeneralization. One car is much heavier than the other, making for very different handling characteristics, and the car’s ability to use a particular compound changes. The compound of a given tire could easily be said to accent a certain car’s handling abilities. Think= heavy car on squirmy sidewall, versus lighter car…same rubber but drastically different grip levels…and thus lap times
Back on topic, the notion of using the 'Ring as the benchmark for halo cars is misleading…but it’s impractical to test multiple tracks…as one car will not be the fastest on every track. That being said, all the top manufacturers that are competing for production-car track records and silently tweaking so they can get the lowest number. There is talk that Honda’s chief engineers WILL NOT APPROVE the new NSX until it beats the 'Ring record. Considering that the first-gen NSX-R pulled a 7:55 with only 180whp means the above scenario may become reality.
Dumb overgeneralization. One car is much heavier than the other, making for very different handling characteristics, and the car’s ability to use a particular compound changes. The compound of a given tire could easily be said to accent a certain car’s handling abilities. Think= heavy car on squirmy sidewall, versus lighter car…same rubber but drastically different grip levels…and thus lap times
I ment same compound stickiness. R compound with the same tire specs
and for your information, most tires are load rated alot higher than the actual car weight so sidewall flex should be near same for two cars within a few hundred pounds of each other, or in this case pretty much every supercar in the 3000-3500 lb range
I’d be surprised if it’s “only” a few seconds faster than the current model. But if 7.25 holds true you can bet GM will re-run the ZR1 on a day w/ less wind and a pro driver. With lap times in the 7 minute range being just 1% slow means nearly 5 seconds. It’s not hard to imagine a GM engineer being a few % off what a true ring-seasoned profesional could do. But perhaps time will tell.
Just for the fun of bench-racing, a good “street tire” is probably 5% faster than a run flat. A true R-compound is at least 5% better yet, probably closer to 10%. So just assuming an overall advantage of 10% going to an R-compound a C6Z06 could shave more than 40 seconds off its ring time… dropping it into race car sub-7 minute territory.
Obviously that’s just pure speculation and nothing but empty bench-racing, but I think most seasoned track drivers would agree that 10% reduction in lap times going from any “true” street tire, particularly run flats, to an R-compound (something on the order of a Hoosier R6 would probably be appropriate for the 'ring) is conservative, very conservative.
However, since the 'ring has long sections of flat out high-speed running where there’s little/no advantage to the R-compounds perhaps typical gains wouldn’t hold true. Still, even a 5% improvement would have the C6 Z06 in the high 7-teens.
For an example of the extreme differences between street tires and R-compound; my car has stock C5 Z06 suspension other than alignment and front sway bar (T1). I hit 1.39Gs on flat ground on Hoosier A6s. Stock C5Zs are rated at around what .98 on Supercars (better tires than run-flats)?
-TJ
All i’m saying is that the true ring test should be done with a standard test tire OR pure factory stock with whatever tire the manufacturer states as OEM equipment for the car.
But yes there is a clear advantage to R compounds over any street tire. Differences would add up for sure reguardless of how much straightaway that track has. The Veyron has argueably the fastest straight line speed compared to the GTR and Z06 and the Zr1 for that matter, but i’ve heard it has only done 7:30’s but i’m not 100% sure on its confirmed time. I jsut know many were expecting more from that car
Somewhere, John Heinricy is cracking his fingers lol. I’m REALLY surprised GM didn’t use him to make the run. Every other car they have sent out to set records with (CTS-V, new Cobalt SS turbo, etc) he drove. And yet he didn’t drive the ZR-1? Kinda odd.
As far as the tires thing, they should be running with whatever they come with off the showroom floor. I don’t see why the cars should be even. The manufactures pick the tires to suit the purpose of the car. The 911 GT2 uses pilot cup sports. Yet the Vette & GTR use run flats and are faster on the ring. GM or Nissan could easily drop faster tires onto their cars and go faster, but whats the point if you can’t pick the car up like that from the dealer?