[Z06] Top End
Thread Starter
Pro
Joined: Jun 2003
Posts: 716
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From: United States
Top End
OK fellow Z owners let's spill it. Chevy alleges a top end on the car of 175 ( I doubt this). How many of us have found their top end, what was it, and where was it done? Knowing we observe the speed limit all the time, it will be difficult for some to "come across", LOL!
As for me, I haven't done it yet, prolly won't, and don't know where around here to try anyway. In the not so distant past, I took another make to it's 160 top end west of Ft. Worth a few times. Out there, the highways are straight, the visibility is unlimited and the traffic is nil. Lectures only from Buick drivers please.... Let's have fun with this thread... :cheers:
As for me, I haven't done it yet, prolly won't, and don't know where around here to try anyway. In the not so distant past, I took another make to it's 160 top end west of Ft. Worth a few times. Out there, the highways are straight, the visibility is unlimited and the traffic is nil. Lectures only from Buick drivers please.... Let's have fun with this thread... :cheers:
Drifting
Joined: Nov 2001
Posts: 1,684
Likes: 0
From: Jacksonville Florida
Re: Top End (Roadfrog)
Well, I would never try to run top end anywhere EXCEPT at the track, too much that can go wrong from cops to debris in the road. That said MANY Z06 owners have had their cars over 170, and Justin Bell did it over and over again in the recent MT article. So the car will do the number.
Les :yesnod: :cheers:
Les :yesnod: :cheers:
Le Mans Master
Joined: Mar 2001
Posts: 8,429
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From: Omaha
2020 Corvette of the Year Finalist (performance mods)
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Re: Top End
The car is gear limited to the low to mid 170s depending on aerodynamic forces. Not that I have any personal experience :D , but I would imagine you should be able to do 174 on a slight uphill on a day with mild wind. I would also imagine that the windows start pulling out at about 130-140mph, and that the front end starts getting just a tad light around 160mph. But this is all just theoretical of course. :yesnod: :lol: :D
Racer
Joined: Oct 2001
Posts: 396
Likes: 0
From: SAVANNAH GA
Re: Top End (EvanZ06)
The car is gear limited to the low to mid 170s depending on aerodynamic forces. Not that I have any personal experience :D , but I would imagine you should be able to do 174 on a slight uphill on a day with mild wind.
Team Owner
Joined: Oct 2001
Posts: 56,377
Likes: 79
Re: Top End (96VIPERGTS)
The car is gear limited to the low to mid 170s depending on aerodynamic forces. Not that I have any personal experience :D , but I would imagine you should be able to do 174 on a slight uphill on a day with mild wind.
If the car is gear limited what do aerodynamic forces have to do with anything?
If the car is gear limited what do aerodynamic forces have to do with anything?
Me 179mph on a slight down hill on autobahn 60, and it was legal!!!!!!! :eek:
Team Owner
Joined: Oct 2001
Posts: 56,377
Likes: 79
Re: Top End (EvanZ06)
I would also imagine that the windows start pulling out at about 130-140mph, and that the front end starts getting just a tad light around 160mph. But this is all just theoretical of course. :yesnod: :lol: :D
Intermediate
Joined: Feb 2002
Posts: 33
Likes: 0
Re: Top End (Roadfrog)
Well, I'm never taking mine anywhere close to it's top end!
I can tell you that while having my cobra dyno'd, there was a TR 02' Z06 that did his pull right before me......the speedo read 177mph in 5th. So, I would think slightly several mph lower than that due to no wind drag/aerodynamics sitting on the dyno.
A little road flaw or debris at that speed might cause for an early "check out"
on your life.
Personally, I like the twisties and switch backs myself!
I can tell you that while having my cobra dyno'd, there was a TR 02' Z06 that did his pull right before me......the speedo read 177mph in 5th. So, I would think slightly several mph lower than that due to no wind drag/aerodynamics sitting on the dyno.
A little road flaw or debris at that speed might cause for an early "check out"
on your life.
Personally, I like the twisties and switch backs myself!
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Pro
Joined: Apr 2003
Posts: 686
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Re: Top End (EvanZ06)
nope
its not gear limited
at last not much.
5th gear is pretty close to optimized for hitting the top speed the car can hit given its powerband and aerodynamics.
its not gear limited
at last not much.
5th gear is pretty close to optimized for hitting the top speed the car can hit given its powerband and aerodynamics.
The car is gear limited to the low to mid 170s depending on aerodynamic forces. Not that I have any personal experience :D , but I would imagine you should be able to do 174 on a slight uphill on a day with mild wind. I would also imagine that the windows start pulling out at about 130-140mph, and that the front end starts getting just a tad light around 160mph. But this is all just theoretical of course. :yesnod: :lol: :D
Melting Slicks
Joined: Aug 2002
Posts: 2,737
Likes: 2
From: California USA
Re: Top End (Roadfrog)
I've never topped out the Z, but based on how fast it rips past 140, I don't doubt it at all. Only concern I have is the hood on the Z seems to float a little at high speed.
Team Owner
Joined: Oct 2001
Posts: 56,377
Likes: 79
Re: Top End (427CPE)
I've never topped out the Z, but based on how fast it rips past 140, I don't doubt it at all. Only concern I have is the hood on the Z seems to float a little at high speed.
Pro
Joined: Oct 2000
Posts: 666
Likes: 0
From: Oviedo FL
Re: Top End (CPT Z06)
Remove the rear hood seal, the one that runs from left to right just under the wipers. It allows under hood air to escape eliminating hood jump at speed and keeping the engine bay cooler.
Or are you just saying to remove the seal during high speed runs and leave it in place for the rest of the time?
Team Owner
Joined: Oct 2001
Posts: 56,377
Likes: 79
Re: Top End (lt4vette)
Remove the rear hood seal, the one that runs from left to right just under the wipers. It allows under hood air to escape eliminating hood jump at speed and keeping the engine bay cooler.
Wouldn't this allow for hot air to be sucked into the outside air intake for the HVAC system?
Or are you just saying to remove the seal during high speed runs and leave it in place for the rest of the time?
Wouldn't this allow for hot air to be sucked into the outside air intake for the HVAC system?
Or are you just saying to remove the seal during high speed runs and leave it in place for the rest of the time?
Le Mans Master
Joined: May 2003
Posts: 8,117
Likes: 67
From: USA
Re: Top End (Roadfrog)
About 172 is all mine will do. I have tried going slightly down hill and it is still about 172?? The car seems to get a little light at about 130-140 then it feels a little more stable. It would not be wise to say where!