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[Z06] C5Z vs c6 vs c6z

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Old Sep 23, 2006 | 06:26 PM
  #21  
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Originally Posted by Postpro
Do read the rest of forum..
Yeah, but remember that specific car HAS to run on race gas because of the sky-high compression. That's not much of a street car, but much more of a dedicated track car.

If you want to keep any sort of street manners, there's no way to get 690 RWHP from just heads/cam.

Oh, and my definition of "street manners" is a lot more lax than most...
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Old Sep 23, 2006 | 07:03 PM
  #22  
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Option 3 is the safest but I could not leave the car stock. So, I'd mod my C5 Z.
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Old Sep 23, 2006 | 07:05 PM
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What is the original posters intentions with the car? I think too many people are HP crazy, lol. For a street car, 700rwhp in a 3100lb car is WAY overkill. Not even usable power. If he is building a track car, thats obviously something different, but other than that I don't think really need to be talking about 700rwhp, lol
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Old Sep 23, 2006 | 07:25 PM
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Originally Posted by Zix
Yeah, but remember that specific car HAS to run on race gas because of the sky-high compression. That's not much of a street car, but much more of a dedicated track car.

If you want to keep any sort of street manners, there's no way to get 690 RWHP from just heads/cam.

Oh, and my definition of "street manners" is a lot more lax than most...
I know you followed the C5 Z and you know that when someone announced 417rwhp it was discussed with many people.
It was on race gas for the dyno runs too since it was so rad.

It almost hurts to say it but Hennesey was one of the 1st out the block on this forum with the only package that produced these numbers na "Darth Vader" and he reeled in a few with its advertising. Then later that package became a low ball on the power a H&C mod would yield.

It was a pinnacle then someone broke that barrier. Then someone broke another and now in this thread it was mentioned as a way to keep up with the C6Z / is by modding a C5z with this H&C. This original 417rwhp package that started radical only to find with programming that it was just the begining.

I beg to differ. A C6z will have 690rwhp or close using pump gas and full out using race gas it will have more.
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Old Sep 23, 2006 | 07:43 PM
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Originally Posted by kbreese
What is the original posters intentions with the car? I think too many people are HP crazy, lol.
For a street car, 700rwhp in a 3100lb car is WAY overkill. Not even usable power.
If he is building a track car, thats obviously something different, but other than that I don't think really need to be talking about 700rwhp, lol
Some could ride Jenna Jameson and get her off all day and some could just be practicing. Some could get on a racehorse and ride until the horse was winded some couldnt. Some peeps fly planes some drive cars if you dont want faster straighter and more aerodynamic, why make negative "like your in the knowledge of what it takes to drive a 700rwhp car" comment at all if you dont understand. Geesh thats like me participating at a gay rally saying, why do you suck on other men, I dont belong to discuss it..

700rwhp to some of my buddies is laughable in their 700+daily drivers. I guess its the clique you hang around. Did you know a viper with small mods are over 700rwhp and its a lot of them running around here .

The original poster was just surmizing great options and aditions to his stable.
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Old Sep 23, 2006 | 08:01 PM
  #26  
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I would keep the C5Z and have an LS7 installed.
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Old Sep 23, 2006 | 08:43 PM
  #27  
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Originally Posted by jgmachine
Ok guys, I am thinking about wanting more speed. I am considering 3 choices. What are your thoughts.

1) buy the STS twin turbo system for my basically paid for C5Z06

2) trade in the 03Z for a C6 coupe and get the STS kit

3) just buy an C6Z06 and keep it stock.


???????????????????????????????????????? ??

If I was looking to make an upgrade, I would mod the C5Z06. I personally can't stand the idea of taking a brand new car and modding it. Also, buying a new Z06 is gonna cost another 50k. I don't see the value in that. good luck!
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Old Sep 23, 2006 | 08:48 PM
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Originally Posted by zeevette
GeeZ!, a good H/C setup on a C5Z will get you the performance of a stock C6Z. You don't need power adders to do that. OTOH, a low boost STS will give your present car the ability to fly by C6Zs. If you've got the $$ to spend, and like the body style, get the new Z, but leave it stock???? I couldn't.
When my C6Z was bone stock (and less then 2,000 miles on the clock) it walked away from my bolt on 457 rwhp / 421 rwtq C5Z after 50 to 60 mph. I asked Andy Green from A&A how this could be he said the difference was the torque in the powerband. Now that the new Z has tuning and headers it is an absolute monster. The new car pulls past 120 with an ease that the C5Z just can't match.

A&A has done the work on both cars.
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Old Sep 23, 2006 | 08:58 PM
  #29  
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Originally Posted by Postpro
700rwhp to some of my buddies is laughable in their 700+daily drivers. I guess its the clique you hang around. Did you know a viper with small mods are over 700rwhp and its a lot of them running around here .

The original poster was just surmizing great options and aditions to his stable.
OK, maybe I'm even older than I feel, but what can ya DO with 700rwhp on the STREET?
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Old Sep 23, 2006 | 09:06 PM
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Originally Posted by dlen1261
OK, maybe I'm even older than I feel, but what can ya DO with 700rwhp on the STREET?
Without traction, just go real slow in a big cloud of tire smoke.

If anyone is going to invest the $$$ in 700+ to the wheels, they have to be smart enough to get the mini-tubs and sticky rubber for traction.

I know of a certain Toyota Supra that made over 800 on the dyno but the owner had to lower the boost on the street because he couldn't make it hook. With the lower boost it still got 600 rwhp....
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Old Sep 23, 2006 | 09:07 PM
  #31  
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Originally Posted by VicCaerter
If I was looking to make an upgrade, I would mod the C5Z06. I personally can't stand the idea of taking a brand new car and modding it. Also, buying a new Z06 is gonna cost another 50k. I don't see the value in that. good luck!

Thats why I pointed out all you need to do is add headers and maybe a tune and your done. As pio pointed it the car will be an aboslute MONSTER with just that...500rwhp, with awesome torque and awesome power under the curve. It will be faster than the C5Z's with the best heads and biggest cams, and you still have factory reliability, driveability and the warranty too, and the car is still in perfect balance, no other part of the car will be stressed or put out of balance at that level. If you have the money, this is the best combo by far on the street. Lets face it, the C6Z is flat out amazing performance wise.

dlen, no you aren't just old. 700rwhp on the street is ridiculous and useless on the street for anything other than bragging rights for 99.99% of people 99.99% of the time.

Last edited by kbreese; Sep 23, 2006 at 09:09 PM.
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Old Sep 23, 2006 | 09:08 PM
  #32  
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Me personally have only ridden in a car of this magantude. The greatest rides evah spinning them at 70 and dropping the hammer when you hook up there is no feeling like it -- you must apply for this ride by capable hands its a blast.

Other things off topic:
Well you could stuff two hoties in it and give them the best rollercaoster ride this side of six flags.

you could anhilate a supra from a roll.

You could taunt motorcycles and have the ba!!s to really play with them.

Heck you could gather up with 5-600 more peeps with over 700hp and see if you can make the Earth spin backwards.

If you have it na the sweeter this all is because the power is as linear as it can be. No hit from nos or forced air. Easy to keep the car planted.. I think you want to believe that 700rwhp is like 1000rwhp its not and can be controlled.

Last edited by Postpro; Sep 23, 2006 at 09:12 PM.
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Old Sep 23, 2006 | 09:15 PM
  #33  
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lol, as I said....useless 99.99% of the time. Cars are actually more fun when you can actually use the power & put it to the ground. Spinning your tires constantly at anything other than 100mph will get old real fast.
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Old Sep 23, 2006 | 09:19 PM
  #34  
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Originally Posted by Pio
When my C6Z was bone stock (and less then 2,000 miles on the clock) it walked away from my bolt on 457 rwhp / 421 rwtq C5Z after 50 to 60 mph. I asked Andy Green from A&A how this could be he said the difference was the torque in the powerband. Now that the new Z has tuning and headers it is an absolute monster. The new car pulls past 120 with an ease that the C5Z just can't match.

A&A has done the work on both cars.
457rwhp in a C5Z should be enough for mid-low 11's in the 122-125 range. Pretty close to your average C6Z. Maybe from a low rpm punch the difference is greater. Be nice to see overlays of the dyno graphs from each car.
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Old Sep 23, 2006 | 09:43 PM
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Originally Posted by 97 SC Cobra
457rwhp in a C5Z should be enough for mid-low 11's in the 122-125 range. Pretty close to your average C6Z. Maybe from a low rpm punch the difference is greater. Be nice to see overlays of the dyno graphs from each car.
As soon as I get the graph for the 06, I'll posted, didn't get it from A&A when I picked her up. I'm going back soon, hopefully this week, for a re tune to squeeze some more power out of the new car, Charlie thinks he can get another 15 or so, then I'll post the graph. In the meantime heres the graph of the 03. Trust me on several pulls the C6Z just walked my 03 from about 50 to 60 on. Like you, I thought it would be a dead heat, but my friend and I switched cars, the result the same. The new car is swwwweeeeeeeeeeeeeeTT!!

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Old Sep 23, 2006 | 10:10 PM
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Originally Posted by Pio
As soon as I get the graph for the 06, I'll posted, didn't get it from A&A when I picked her up. I'm going back soon, hopefully this week, for a re tune to squeeze some more power out of the new car, Charlie thinks he can get another 15 or so, then I'll post the graph. In the meantime heres the graph of the 03. Trust me on several pulls the C6Z just walked my 03 from about 50 to 60 on. Like you, I thought it would be a dead heat, but my friend and I switched cars, the result the same. The new car is swwwweeeeeeeeeeeeeeTT!!

Were you going from a stop or from a punch? If rolling at what rpm? Is the trans geared differently than the C5Z? Pio, that's a very nice looking graph on your C5 (350rwtq@2800 ). My car went 12.0 with headers and a cai. If this pig does not go 11.30's with H/C/I I'm going to stuff a rag in the gas tank and light a match.
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Old Sep 24, 2006 | 12:31 PM
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Originally Posted by 97 SC Cobra
Were you going from a stop or from a punch? If rolling at what rpm? Is the trans geared differently than the C5Z? Pio, that's a very nice looking graph on your C5 (350rwtq@2800 ). My car went 12.0 with headers and a cai. If this pig does not go 11.30's with H/C/I I'm going to stuff a rag in the gas tank and light a match.
From a stop both times, my C5Z has r compound rubber vs the EMT on the C6 so the 03 gets a slight advantage, once the 6 gets to 2nd (and gained traction) that was it.

The gearing in the C6Z is higher (numerically lower) then the C5Z - 1st is 2.66 vs 2.99 for the C5Z. Both have 3.42 rears.

Future plans; stickier tires for the 6 - roll cage and 3.73's for the 5 which will spend a lot of time in Willow Springs.

BTW- did you own a 97 Cobra? I used to have a 96 when the 4.6 DOHC arrived on the scene, traded it in on my 1st Vette in 98.

Last edited by Pio; Sep 24, 2006 at 12:34 PM.
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Old Sep 24, 2006 | 01:19 PM
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Originally Posted by Pio
From a stop both times, my C5Z has r compound rubber vs the EMT on the C6 so the 03 gets a slight advantage, once the 6 gets to 2nd (and gained traction) that was it.

The gearing in the C6Z is higher (numerically lower) then the C5Z - 1st is 2.66 vs 2.99 for the C5Z. Both have 3.42 rears.

Future plans; stickier tires for the 6 - roll cage and 3.73's for the 5 which will spend a lot of time in Willow Springs.

BTW- did you own a 97 Cobra? I used to have a 96 when the 4.6 DOHC arrived on the scene, traded it in on my 1st Vette in 98.
Craziness. Seems I may need some spray to guarantee a win against one of those beasts.
Yes I did have a 97 Cobra, which I sold for the vette. Fun cars and love the FI but it was time for a change. In fact, this is my first GM performance vehicle! Good Luck on the track Pio.
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Old Sep 24, 2006 | 02:31 PM
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Pio, what heads & cam on the C5Z and what supporting mods?
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Old Sep 24, 2006 | 03:22 PM
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Originally Posted by kbreese
Pio, what heads & cam on the C5Z and what supporting mods?
Straight from his profile:

2003 MY Z06
Halltech TRIC, FAST Intake w/ 90MM TB, AFR 205's, 220/224 baby cam, LG LT's, X pipe, Random Cats, & a Charlie Tuner Tune!! 457rwhp / 421 rwtq
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