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I'd like to think that's stock, but probably not way. But the only other video I have to compare that to is the motor trend one from a dead stop, and that had passenger.
 

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hey yaroslav, ive heard u complained many times about your car seems slow! have u gotten it checkd out? maybe something could be wrong?
The car is showing 22% fuel trim on the left side or drivers side. This means you might have an exhaust leak or a bad sensor on that side and it will make it run rich and be down on power
 

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You need to calm down a bit

i saw ur videos and really your car isnt at 620 as you think it is or as they told u it should be. A tuned stock one will outrun your car. You definitely need to get your car checked by someone who knows. Have a look at this link, i think Z06s come with different Diff ratios.

http://www.youtube.com/watch?v=zoJ-tkBNixE

I would seriously get angry at whoever sold you that package rather than discredit someone who has a fast car. There was another video of a car in the UAE with Halltech tune and cat back, it got to that speed 4 secs slower than the cammed one, makes sense dont you think?

Once you sort your car out, you will be one happy and super fast camper...
:cheers:

NOW! Here is the PROOF!
OK. He has 6000RPM 5th Gear 320km\h

So in real he has 300km\h!:surprised

You can calculate yourself!:thumbsup:

http://www.catherineandken.co.uk/sti/tyres.html
 

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U need to understand whats going on

First, your car is slow with what it has. This is the main problem you are having which is making you doubt everything else people post about their fast Z06. Second, the link i sent you is from a german test which shows starting in 4th and all the way up to 280. So i dont think they would be cheating like you implied the Kwt car is doing. Third, I heard a while back that there is an option of differnet ratio. maybe some cars are getting that. So if you can somehow find out about this and get that ratio and plug it in into your trusted calculator, then i am sure you will get your answers. I am sure you have seen another video of a vette from the UAE, standard except for the halltech tune, his 4th went all the way to 280 as well. That same car later installed the katech cam and he blew away the SLR. I really think it must be a ratio issue which doesnt mean their cars are not reading actual speed. For what you have done to your car, you should be getting to 150 mph( 240 kph) a lot quicker than a standard one, but you arent. Find whats is the problem with your car and you will fly as well as they do. Have you dynoed your car? that would be the best way to find out. you might be at 540 hp instead of the 620 they promised you.

good luck
 

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I have 520whp which is 616hp
On a video i have problems with O2 sensor and old map...Now its ok with updated map and new sensor

Today LPE Z06 620hp raced with SLR 720hp..... SLR was much faster from any speed !!!! :surprised

SLR mods:
AMG supercharger
intercoolers from 722
Cuts deleted
4 disks clutch
Pulleys
Tune
LSD
0.98kg boost
 
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