I wonder why Chevy has 3132 in their ads. No big deal but still wondering.

 

Let me guess. It probably has to do with the fact that the Z06 is derived from a base car that's more of a GT than a sport car. The 911 base car is more of a sport car than a GT (although the GT injection has incereased during the past two generations).

 

Is nsx-r really that fast , i am going to get me one someday .
Corvette is fast too
or is it the old z06, someoneplease tell me how can 290 hp car be as fast as corvette Z06.

oh btw the corvette with 7:40 time and corvette with 7:56 time are same or different!!

 

Different. The 7:56 car is the previous 405HP Z06.

 

Yes. Two words. Light weight.

 

Well underrated too, car is making more than 290hp.

 

one of the first dyno sheets.... 454 rwhp = 505 hp with 11% drivetrain loss... with a more typical 15-17% loss, it's making 522-531 hp. SO either the engine is waaaay efficient or the engine is underrated...

oh yeah it says 05 but its 06...

http://www.z06vette.com/forums/showthread.php?t=87989

 

I remember hearing that GM was thinking about raising the output figures of the LS7, but decided against it. I think it is slightly underrated from the factory.

 

The new SAE ratngs system no longer allows manufactuers to overrate engines so why would it allow for an engine to be underated?

 

That is a question that has been on my mind lately, it would seem to me that sandbagging would be out but I am not sure who would enforce this, I mean what ownner is going to sue for misrepresenting the HP if there is actually more, and not sure what the SAE would say.

 

I thought there were SAE represetatives present when the rating tests took place. Maybe, they're factoring in only 10% drivetrain loss?

 

That engine will probably pick up a few more ponies with some miles. Looks like the Z06 is underrated by 25-30 hp.

 

Maybe, maybe not, remember this was from a chassis dyno run, even in the best case senario they are poor at determining what the crank HP would be at std temp and pressure.

 

If GM puts as much heart into the rest of its lineup as it does with the vette, then maybe they wouldnt be suffering so much in sales. I mean they really pour their hearts and souls into the vette.

 

Which SAE system is that?

 

That funny part is that the Z06 is makes the same power as an LS1 with a stroker motor. Wait until someone drops in an agressive cam. A cam should get this beast to 500 whp easily.

 

Within a year you will see 700+ whp monsters rippin' the rollers of chassis dynos! Which to some degree is really a shame since I hate to see a great chassis overwhelmed with HP. Though I certainly have not driven the new ZO6 I would imagine anything over 500 whp would over shadow the chassis and ruin the balance of the car. But I must admit I am not the typical American when it comes to HP, I would rather have a 240hp turbo Exige than a C6 Z06.

 

"new Society of Automotive Engineers (SAE) test procedure J2723."

The new rating that pushed the Z06 from 500 to 505, the RL from 300 to 290, the Camry from 225 to 210, the RSX-S from 210 to 201, the TL from 270 to 258 etc, etc.....

Honda, GM and Toyota and now using it on their 2006 lineup.

http://www.theautochannel.com/news/2...11/034631.html


http://www.detnews.com/2005/autosins...A01-283759.htm

You posted in this thread.

https://acurazine.com/forums/showthr...sians+oversell

 

The overrating was a result of deactivating car systems to free up power etc, the 3rd party makes sure the car is using all systems. Not sure what the story is on what number can be put down on paper - ex if that number was lower than the cars true rating.

 

It seems there is word that the new MotorTrend has some faster numbers for the Z06 - 3.5 0-60 11.5 1/4mile.

 

http://forums.corvetteforum.com/show...2&forum_id=100

492 rear wheel hizzypizzle!

 

With air filter removed and a redline oil makeover throughout the car. Don't understand why someone like this wouldn't start with a baseline dyno when they are doing 20+ dyno runs...

 

Me either. But still 492 is niiiiice

 

wow..... I was thinking that the LS7 would be so tweaked out already, that it might not see much gain with the basic mods (such as headers)..... but damn. It looks like it LOVES the basic mods

who knows what owners will get out of the LS7 with a little R&D time...

 

Thats the one thing I love about US iron (in this case Al), stuff like 25hp from removing a piece of plastic from around the air filter, 30 hp for an exhaust, etc etc. IHE and a reflash might be good for 75 or so HP on the LS7 and thats just the tip of the iceburg. Some boost and an LS7 will make even the 65 series Mercs look like S2000's when it comes to torque (ok hyperbole off).

 

Right but what makes you think that with this new system, it's not possible to underrate an engine. BTW look for my post about MT mag and the Z06 coming up next.

 

It was not so much deactivating systems. IT was tricks like very little oil in the oil pan, different ECU mapping and very high octave ECUs, etc.

 

MT mag reports that the LS7 makes a lot more than the 505HP claimed. It's closer to 550HP the mag says. That's what explains it's times at the N'ring the author suspects.

 

November issue of Automobile has a test with the Z06, SRT10 Coupe, and GT at Gingerman Raceway in Michigan... here's a teaser.

http://www.supercars.net/pitlane/pics/1645144a.jpg

 

Nice find

Looks like the GT is still the superior track car.

Slow times for the Z06 compared to C&D and MT but more proof that for the money the Z06 can't be beat, not even close really.

Can't wait for C&D, MT and R&T to do similar tests.

 

Yea that magazine needs some real testers. A mt or C&D comparo will be better indication of what those cars will do

 

Pretty impressive, now the Z06 just needs a supercar interior.

 

from the numbers, I feel the Z06 and GT are about equal - 3 tenths at a roadcourse like Gingerman is not substantial, at all. Honestly judging from the rest of the numbers, I'm surprised they didn't run the Z06 faster than the GT. It brakes, accelerates, and handles better than the GT. On top of that, the Z06 most likely feels more nimbler than the GT, since it weighs some 350 lbs less. I still don't understand why the f the GT weighs almost 3500 lbs...

 

I actually think the GT has one huge advantage and thats the MR layout, even weighing more it will change direction with less fight.

I also disagree about the .3 sec, even if it was a 20 lap sprint a 6 second lead at the end of a race is significant. Plus, odd for the LSx engines in a comparo, the GT will respond better to cheap mods, but more ultimate potential in the Vette and for 80K you can do a LOT of mods.

Bottom line the GT appears to be a better car and probably far easier to drive quickly but the Vette is by far the bargain in baby super cars!

 

I would have to disagree - I think the Z06 would be easier to drive, seeing how it was built as a "supercar for the masses" - does the GT even have the amount of driving assist options the Z06 has, if any at all? Doubt it. Also, from what I've seen, the GT is more of an "exotic" in terms of drivability, not to mention reliability.

It may be true that the GT will respond better to cheap mods since it's already supercharged, but I don't see how anything can be "cheap" for a $150k car - or if I'd even do "cheap" mods on a $150k car. But also keep in mind these cars have a HUGE difference in cubic inches - 5.4 vs. 7 - the Z06's engine may be already well-tuned and tweaked, but judging from how it responded to modified headers, it seems to love the basic mods as well. Can you imagine if you added FI? It would be ridiculous - and like you said you are already have a $80k advantage.... damn.

I don't know how much of an advantage the MR layout gives in this application - it seems both cars are on the same playing field. I will be looking to read the full article for more input on how these cars compare.

The other thing about the laptimes, I feel they could have run the car faster than the GT - that's another reason why I'm not thinking too hard about the difference. And while it's true a .3 second difference per lap would add up over the course of a full race, that is assuming that there is a .3 second difference for the cars for each and every lap. What is the probability of that happening? nil - the laps will vary, positively and negatively for each car for each lap.

 

Bottom line, the Z06 is the performance bargain of the century.

Hopes C&D, MT add the F430 to their test

 

WOW!

Excellent find!

 

yea I was quite happy with that link. Having put in about 35-40 laps myself at Gingerman (when I had my Supra ) - I have (and always will have) a particular affinity for that track. I took a 5-lap ride in a friend's full-race prepped Viper GTS at Gingerman a few years ago - clocked a best of 1:32 - it felt like a roller-coaster. This Viper had full slicks, cage, and was gutted. Yeah 1:32 in a street car is INCREDIBLY fast and demonstrates a level of performance akin to race cars.

 

Quote
"I would have to disagree - I think the Z06 would be easier to drive, seeing how it was built as a "supercar for the masses" - does the GT even have the amount of driving assist options the Z06 has, if any at all? Doubt it. Also, from what I've seen, the GT is more of an "exotic" in terms of drivability, not to mention reliability."

The problem with this is you responded to something I didn't say. I said easy to drive quickly! Driving quickly assumes you do indeed know how to drive, the MR chassis I have driven on the track are almost universally easier to drive fast, they are easier to turn and responded faster to input, the only negative is for people not used to them they will rotate "too" easy for some driving styles. Driver assist options are NOT for good drivers on the track but drivers of all flavors on the street, a good driver usually cuts all street car drivers aids off on the track sans ABS. No point is mentioning reliability as it is too soon to tell on the Z06 anyway and a non-issue concerning performance. Not sure what exotic means in terms of drivability, maybe at some point it was the quirkiness of a Maranello built gated shifter et al, but not any more.

Quote

"It may be true that the GT will respond better to cheap mods since it's already supercharged, but I don't see how anything can be "cheap" for a $150k car - or if I'd even do "cheap" mods on a $150k car. But also keep in mind these cars have a HUGE difference in cubic inches - 5.4 vs. 7 - the Z06's engine may be already well-tuned and tweaked, but judging from how it responded to modified headers, it seems to love the basic mods as well. Can you imagine if you added FI? It would be ridiculous - and like you said you are already have a $80k advantage.... damn."

How about a S/C pulley.... thats "cheap" for a 100 or so HP.
Now whether you would mod a 150K car depends on your desire and wallet, for many people modding a 70K car would be a "problem". My point was you can get 100hp out of the GT much cheaper than on the Vette, FI aint cheap but I did point out ultimately the LS7 could put more HP to the ground. The 80K to me is a non-issue when discussing which one is better out of the box. You could make a lot of cars faster than the Z06 for 70K. The 80K difference does make a good excuse for the Z06, one other thing after 10 years of typical weekend car miles the GT will be worth far more percetage wise than the Z06, and will likely appreciate.

Quote

"I don't know how much of an advantage the MR layout gives in this application - it seems both cars are on the same playing field. I will be looking to read the full article for more input on how these cars compare."

This is exactly the application MR is an advantage, the track. Thats why in almost any racing series that allows MR, the cars are almost universally MR layouts, why, because it is a better layout for the track...period.

Quote

"The other thing about the laptimes, I feel they could have run the car faster than the GT - that's another reason why I'm not thinking too hard about the difference. And while it's true a .3 second difference per lap would add up over the course of a full race, that is assuming that there is a .3 second difference for the cars for each and every lap. What is the probability of that happening? nil - the laps will vary, positively and negatively for each car for each lap."

So it all comes down to this, it is apparent by your first statement that you "want" to believe the Z06 is faster at the track. I have no idea why you think they would sand-bag the Z06.

You would be very surprised how close a great driver can come to meeting that time lap after lap given static conditions. Lap time will change with decreasing fuel loads, heat soak, tire degradation etc etc. Though different cars respond differently to increasing laps in a race given the choice (on a DOT tired cars) I will almost always choose the faster car in one lap to start the race in. If you are comparing that for the street lap degradation will be a non-issue.

For economy or a drag race I would pick the Z06
For road racing, investment or "showing up" somewhere I'd take the GT

Only one of these cars has been called "faster and more rewarding than the 360 Stradale" by IMO the premier English language performance car rag, some day the other may garner such praise.

 

Someone at Corvetteforums clocked a 11.67@125 in their C6 Z06 ... Supposedly with no practice. Bone stock =0