[Z06] "Top Speed"
Le Mans Master
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
it is not torque rated to pull the big end and there is not enough hp to pull it anyway, you will drop mph when going into 6th, I know people who have done this and this is what they report
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,228
Likes: 5
From: Gainesville Georgia
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
The C6 Z06 with 450 RWHP could theoretically go about 217 MPH if it was geared perfectly to take full advantage of the RWHP. Every street car could go faster than it does if the gearing was matched perfectly with it's available RWHP for a top speed run.
Last edited by ZeeOSix; Jan 28, 2008 at 07:45 PM.
Race Director
Joined: Apr 2007
Posts: 18,048
Likes: 53
From: long Island NY
I'm waiting to. There is nothing wrong with 6th its just not enough power on a stock motor to plow through all that drag I think with 500 plus rwhp you could hit 200.
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,228
Likes: 5
From: Gainesville Georgia
Nice!! 
Please let me know when you do. To everyone else... Thanks for your input, I really appreciate it In my opinion I still believe a Z06 with 500+ RWHP should be able to hit 200 in 6th gear w/o breaking it.
If I could find a private area where I could legally try it with the proper equipment I certainly would, otherwise I don't wan't to go to jail or kill myself or others. Thanks again
Please let me know when you do. To everyone else... Thanks for your input, I really appreciate it
In my opinion I still believe a Z06 with 500+ RWHP should be able to hit 200 in 6th gear w/o breaking it. If I could find a private area where I could legally try it with the proper equipment I certainly would, otherwise I don't wan't to go to jail or kill myself or others. Thanks again
Pro
Joined: Dec 2005
Posts: 688
Likes: 0
From: las Vegas N.V.
I was wondering if my 6th gear would pull after putting in 410 gears and a cam. I am at 418rwhp. My 5th gear now only will take me to about 150mph. 6th gear now pulls at 70mph and harder at 100. I have not gone any faster since the 410's and cam yet.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,228
Likes: 5
From: Gainesville Georgia
I'd be interested to know that myself. I hope someone with personal experience can answer your question.
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
I was wondering if my 6th gear would pull after putting in 410 gears and a cam. I am at 418rwhp. My 5th gear now only will take me to about 150mph. 6th gear now pulls at 70mph and harder at 100. I have not gone any faster since the 410's and cam yet.
I don't have my gearing spreadsheet handy, but I've given 1/2 the answer. Someone needs determine the engine RPM at 200 MPH in 6th gear with 4.10s, then compare that engine RPM with the dyno chart to see if it's making 395+ RWHP.
Zosixin -- Off the top of my head it would be close if your engine is at peak HP near 200 MPH with that gearing.
Last edited by ZeeOSix; Jan 30, 2008 at 01:38 AM.
Drifting
Joined: Oct 2000
Posts: 1,396
Likes: 0
From: Sacramento CA
What it takes to hit 200
I can speak from experience. In my open road race car(see sig) I make right at 600rwhp and top out at 206mph. It is a C4 not C5 and it has a bunch aero mods-front air dam, side skirts, lowered, extended nose(18 inchs). I loose some top end due to the wing. To prove I am not just talking here is a pic of my GPS:
I use 5th gear not 6th, but have 3:17 gears 200mph is 5100 rpms. Hitting 200 is harder then people think and running it for distance is a whole different ball game.
Jeffy'
I use 5th gear not 6th, but have 3:17 gears 200mph is 5100 rpms. Hitting 200 is harder then people think and running it for distance is a whole different ball game.
Jeffy'
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,228
Likes: 5
From: Gainesville Georgia
Nice!! There's nothing like proof! Beautiful Corvette's you have too.
Oh yeah, I forgot to ask...What is the top speed of your LPE Vette? That thing looks like a beast! *With my mods & dyno numbers, what do you think my top speed would be and would it be in 6th?
I didn't check to see if you responded before to this, so sorry if I asked you twice. Going by your Vette's it seems like you would be the perfect candidate to ask this question. Thanks In Advance ~Chris
There's nothing like proof! Beautiful Corvette's you have too. Oh yeah, I forgot to ask...What is the top speed of your LPE Vette? That thing looks like a beast! *With my mods & dyno numbers, what do you think my top speed would be and would it be in 6th?
I didn't check to see if you responded before to this, so sorry if I asked you twice. Going by your Vette's it seems like you would be the perfect candidate to ask this question. Thanks In Advance ~Chris
Last edited by Vetteoholic; Jan 30, 2008 at 11:27 AM.
Burning Brakes
Joined: Jun 2004
Posts: 1,184
Likes: 3
From: KADS- If it has wings or an engine, I can break it. Dallas TX
Try the NASA Texas - Texas Mile website. It won't give HP or gear ratios or tire size. But it will give some insite on what speed some of the these cars are doing. I hope to make down to Goliad this year, to see what a bone stock 03 Z will do, top speed wise.
As fast as you can go, for as many runs your car can stand...........
It would be interesting to see how close the "speed calculators" are to actual results.
Not a whole lotta cars in the 200 MPH club.
http://www.texasmile.com/
As fast as you can go, for as many runs your car can stand...........
It would be interesting to see how close the "speed calculators" are to actual results.
Not a whole lotta cars in the 200 MPH club.
http://www.texasmile.com/
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
With the above data it's just a matter of determining how much rwhp is required for the target velocity and the air conditions, then determining the relationship of rwhp output vs. velocity per the drive train gearing to see if you are making enough rwhp at the target velocity. It's just a big "balance equation".
Last edited by ZeeOSix; Jan 30, 2008 at 07:38 PM.
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,228
Likes: 5
From: Gainesville Georgia
Try the NASA Texas - Texas Mile website. It won't give HP or gear ratios or tire size. But it will give some insite on what speed some of the these cars are doing. I hope to make down to Goliad this year, to see what a bone stock 03 Z will do, top speed wise.
As fast as you can go, for as many runs your car can stand...........
It would be interesting to see how close the "speed calculators" are to actual results.
Not a whole lotta cars in the 200 MPH club.
http://www.texasmile.com/
As fast as you can go, for as many runs your car can stand...........
It would be interesting to see how close the "speed calculators" are to actual results.
Not a whole lotta cars in the 200 MPH club.
http://www.texasmile.com/
Melting Slicks
Joined: Jul 2004
Posts: 2,369
Likes: 6
Ive been 195mph indicated, well past the top of fifth and into sixth. Car was still pulling hard, but the hood was fluttering pretty hard. It easily had more mph in it.
Drifting
Joined: Oct 2000
Posts: 1,396
Likes: 0
From: Sacramento CA
my guess
Chris,
With the 550+rwhp you should be able to hit 195 maybe 200mph. not that I advise it without some aero mods. You won't make it that high in a 1 mile shootout. There is not enough room to get up that high, at those speeds you eat up ground fast. At 200mph you travel a mile every 18sec or a football field (100 yards) every second.
You ask about my LPE TT ZO6 I have never run it yet. But it should be fast. We have added meth injection, diff and tranny coolers, rebuilt the turbos, new pistons, rods, rings. So maybe I can get a few more ponies out of it after a new tune. I also have added some aero:
Front:
Back:
We still need to put spill catchers(small side scoops,that come down a few inchs and connect to the body) and shape the top edge to follow the conture of the body.
Jeffy'
With the 550+rwhp you should be able to hit 195 maybe 200mph. not that I advise it without some aero mods. You won't make it that high in a 1 mile shootout. There is not enough room to get up that high, at those speeds you eat up ground fast. At 200mph you travel a mile every 18sec or a football field (100 yards) every second.
You ask about my LPE TT ZO6 I have never run it yet. But it should be fast. We have added meth injection, diff and tranny coolers, rebuilt the turbos, new pistons, rods, rings. So maybe I can get a few more ponies out of it after a new tune. I also have added some aero:
Front:
Back:
We still need to put spill catchers(small side scoops,that come down a few inchs and connect to the body) and shape the top edge to follow the conture of the body.
Jeffy'
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,228
Likes: 5
From: Gainesville Georgia
Thanks Jeffy 
Yeah, I won't be trying it anytime soon
The acceleration is so intense as it is, I'm very satisfied with running the 1/4 from time to time. If I ever do run the Texas Mile, I would definately wan't the proper aero mods and safety equipment.
Thanks again for the reply and take care of those amazing Corvette's!
~Chris
Yeah, I won't be trying it anytime soon
The acceleration is so intense as it is, I'm very satisfied with running the 1/4 from time to time. If I ever do run the Texas Mile, I would definately wan't the proper aero mods and safety equipment. Thanks again for the reply and take care of those amazing Corvette's!
~Chris
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
That's an interesting point... I never knew the LPE Vette used a 2.73 gear for it's top speed runs. I just figured with how hard my car pulls in every gear I would be able to hit top speed in 6th. I mean at 60 mph in 6th gear this car still pulls very hard if I step on it. I couldn't believe it the first time I tried it. These procharger's love the high rpm's
You can't possibly be anywhere near "high RPM's" in 6th at 60
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
Try the NASA Texas - Texas Mile website. It won't give HP or gear ratios or tire size. But it will give some insite on what speed some of the these cars are doing. I hope to make down to Goliad this year, to see what a bone stock 03 Z will do, top speed wise.
As fast as you can go, for as many runs your car can stand...........
It would be interesting to see how close the "speed calculators" are to actual results.
Not a whole lotta cars in the 200 MPH club.
http://www.texasmile.com/
As fast as you can go, for as many runs your car can stand...........
It would be interesting to see how close the "speed calculators" are to actual results.
Not a whole lotta cars in the 200 MPH club.
http://www.texasmile.com/