timberman

racelogic vbox

http://www.racelogic.co.uk/
check out the performancebox and driftbox

I use their timing gear on my car ,

it's GPS based and probably the most accurate timing gear available which is why most of the magazines use it,

it may cost a little more than say a G-tech, but if you want an accurate reading of what your car is capable of it's worth the money,

there's no setting up involved, you just plug it into the cigarette lighter socket , wait for it to pick up a signal and away you go

Cylinder Head

iTrader: (1)

Wow seriously impressive runs by that GT2, all that weight over the rear wheels definitely helps it off the line, and the driver of the Z06 was clearly running on too much NyQuil, but you have to give it to the Pcar. In-gear acceleration told the whole story here, that GT2 is a MONSTER.

And yes pound for pound the Z06 is cheaper both to buy and to mod, but what happens if the GT2 owner chips and DP's his car??? Game, set, match, no beating turbo cars for tunability.

I was really speechless when they did their first run, that GT2 is SO DAMN FAST. Regardless of shifting speed, either that Z06 had the flu, the Pcar was a ringer, or Vette owners have clearly been unseated.

ItalianStallion

Also, the Z06 should be compared to the 997TT. The GT2 should be compared to the ZR-1 (which is still about 90k cheaper)

Cylinder Head

iTrader: (1)

The man has a point.

BenzBoy12

Just look at the numbers on the vette "box: 5th is .74:1, and 6th is fricken .5:1! Above 160, these things just hit a huge wall. How the hell do you think they get almost 30 mpg on the freeway? The GT2 is awesome, it would be nice to see one line up with a GT.

blume

the Z06 should go against the Turbo and the GT2 should go against the ZR1, while the C6 should be against the GT3 in a battle like this.

straight line action at its best!

plus, money aside, at least get someone that can drive and has a decent haircut!!!!

Hammer Down

Please go back and watch how fast he speed shifts that GT2 when getting those numbers compared to how he shifts the Z06. I don't think that it would have changed the outcome but come on. We have all seen stock Z06's run 11.7@125 or faster depending on driver. Think about this, a normal Z06 runs 0-60 in 3.7-4.0 (depending on driver) so by their numbers it takes the Z06 up to 6.3 seconds to go from 60 to 100 :bs

By the numbers they came up with they should have used an stock E55/E63 to go against the GT2
btw we all know the outcome if you put a really good MB driver against a really good Z06 driver (Ranger) what the outcome would be, so once again I say not so much on the win by the GT2 as the times they produce for the Z06.

just my .55 cents

6.3AMG

Get real.

AMG Rider

I disagree.. I think it was a fair match.They are pretty close in weight&power...and imo, RWD should always race RWD cars...
AWD car=disadvantage due to weight+top end disadvantage
997 TT weighs alot more than Z06~

stevebez

Even with a jump the vette got caught quickly - no "de-nile" there...

That has to be the P-car for me... + chip... that should be enuf to keep me happy - who needs the weight of the 997TT 4wd with that traction?

rflow306

He was definitely short shifting, the video clearly shows what a non-driving clown can do in a Z06. That race should be close to 160 for both cars imho.

Once the us magazines start testing them I think we will see 11.50's at 125-127 mph on stock rubber. The porsche is definitely easier to launch because of the rear engine.

stevebez

The in gear accel said enuf for me.

CWW

Ya, but if the porsche was turning the appropriate revs before upshifting, so that he was staying at the peak of his power curve, but the vette was shifting poorly and too early, then in-gear accel will still look crappy on the video...

For example, if you have two of the same cars running each other, and one is shifting at around redline (7000 on the vette) or maybe 500rpms before, and the other one is shifting at 5000rpms or less, then in-gear accel will appear to suck on the car using the lower shift points, because the car is fighting its own gearing and missing out on a chunk of power. By upshifting too early, you start off in the next gear way below the peak of your power curve...

I still think the vette driver ruined that run.

stevebez

OK... but I dont think the outcome would have been very different... instead of a bus or 2 it would be a car or 2...

That GT2 is my new ambiton... yay ... I found one again!

But at ~$240k equivalent here in UK (you guys in the US of A have it soo good!) ... it will have to wait some time.

Cylinder Head

iTrader: (1)

Not so true for a Z06, they have a fat, flat power curve, not peaky at all. I'd be willing to bet that on a stock car it's making very similar power at 3krpm's to 5krpms. For a Turbo car there is definitely a difference, but not on a Z06, you can start that thing in 6th gear and it'll have enough juice to make it to top speed.

ItalianStallion

Dude, you've probably been in a C6 Z06 before (if not, don't worry, I'll take you for a ride and in return you let me experience the G's of your Supra).

You think that at 5k RPM's the car is at it's peak power, but those final 2000 RPM's are scary. I usually short shift because I don't need that much power and it results in the tires spinning, but trust me, that 6-7k RPM range is really sweet.

Not that I'm arguing that it'll beat the GT2. I still feel the GT2 will take it at all speeds but it won't be anywhere as close as the beating it took on this vid.

But yes, in gear acceleration shows tq vs tq (tq/weight ratio plus aerodynamics) and the GT2 clearly had the advantage either way. I saw it at the auto show, love it dearly. How much tq does that thing produce and at what RPMs. Must be a nice dynograph.

Cylinder Head

iTrader: (1)

Agreed, the vid definitely was a bit of an exaggeration, that guy was the crappiest driver ever, but two things in it are definitely a constant. Off the line, the GT2 wins with all that weight over the rear wheels and those instant-on turbos. In gear, the GT2 wins but by carlengths and not 737 lengths.

At a racetrack it's a different story, probably much much closer due to the rubberized "launchpad" you're given.

While I have limited experience with a C6 Z06, I've driven around my father's C5 Lingenfelter 427 enough to know what vettes with 7 liter engines are about. That badboy dyno'd at 490rwhp and has a 4.10 rear. SCARY.

ItalianStallion

I was tempted to change the rear...but it'll be too much for me to handle on the streets your dad is one crazy fella! awesome!

Cylinder Head

iTrader: (1)

He's an absolute PSYCHO on the road, I will not drive with him. Every time I'm in that car I'm positive I'm goin to die.

TMC M5

I think everyone would agree that the GT2 is just an incredible piece of machinery and is faster than the Z06.

In my opinion, that clown behind the wheel of both cars was a complete joke. I also thought it was a joke that they were trying to squeeze maximum performance times from each car...with a cameraman and camera equipment taking up residence in the passenger seat. Then to insult our intelligence a little more...we had the number crunching dude adjudicating on what the car was capable of... just by looking at the raw data (without any concern about Conan the Clown's expertise in managing the clutch, stick and throttle). I honestly would be embarassed to actually record such terrible technique....but it is ok since it was done in an American car...so it is the American car's fault. As we all know, criticizing Americans/their products is a national pas-time for most people in the UK and Europe....so the intended audience would buy off on this charade. With all that said....it was an interesting video to watch...with the result of the GT2 out ahead...but I think reality (if you had GM and Porsche factory drivers) the margin of victory would have been much closer...not necessarily close...just closer.

Tom

Sunny55

LOL....I totally agree...ur dad is one crazy guy....a cool crazy guy though

Sunny55

Sup Stallion,

I've been MIA, what's up? U got a z06 now?????

ItalianStallion

Hey bro! Yeah, long time no see, how are ya? What ya been up to?

Yup, I've been talkin about a Z06 since they first came out and it really has everything I want in a car at this stage of my life. Hope all is good

CWW

I dunno CH, normally I totally agree with pretty much everything you have to say, but not on this one...

Here's the power curve for a stock Z06...

http://www.dragtimes.com/2006-Chevro...aphs-8827.html

I agree the torque curve is abnormally flat for a performance car, but the total hp figure really ramps up in the 2500 rpms approaching redline. Look at the difference between 4500 and 6500, as an example. There is almost a 100hp difference just in that one 2000rpm window....

Judging from the sound, that guy was shifting way too low. He really threw the race. Don't get me wrong, the Porsche was amazing in the vid, but for two cars with almost identical power to weight ratios, the outcome shouldn't have been anywhere near that far off. I do still think the vette would lose, but not by that much...

Cylinder Head

iTrader: (1)

Remember that horsepower is nothing but a measure of torque X rpms divided by a constant. That's why they're always looked at in conjunction with each other. Yes it's definitely more powerful up top, but the majority of the grunt in a Z06 can be had from low rpm's.