MasterMind

iTrader: (-1)

They have to make 200mph, arent they having 2.73 gears in them? I did 173 with my 2000TA with a cam and a few other mods, and 2.73 gears, it really didnt take as long as I thought to get up to that speed. I also have it on video for the B.S.'ers

MarkP

6th gear is an overdrive gear. Top speed is never achieved in a C5 or C6 Corvette in 6th gear. There was a similar thread about this over at the Corvette Action Center: http://corvetteactioncenter.com/forums/index.php

Richiec77

iTrader: (3)

I would believe that the top speed in Europe will be easier to hit because they have a better Premium fuel to buy. So, GM can use a Euro Tune or something like that maybe, and then use their 96 or 98 (forget what it is) and that would allow for some more timming and they can lean out the mixture a little for some more power. That should get 15-20 HP needed for 200 mph easy.

silverTA2002

iTrader: (1)

Seriously?

I guess they decided to make it 198 for insurance purposes. Because 200 mph would be too fast.

slt200mph

iTrader: (42)

No sir you have incorrect info..in Europe to be considered a super car you need to be able to run 300 KPH..that equals 186 MPH..the 2005 C6 coup with a six speed manual trans with the Z51 performance handling package goes 186 MPH..the gearing in the transmission is how the car attains this speed a long with a .28 drag coefficient..so the C6 is already considered a super car in Europe..GM did an advertising campaign presenting this info last year..

Shinkaze

5th gear in a Z06 is an overdrive gear as well. It's not a matter of whether or not it's an overdrive gear, rather it's a matter of what the gearing is. The C6 tops out in 5th, because there isn't enough power in 6th.

ChrisL

GM got it to 198 in stock trim at the test track. You know they had to hit 200, so they taped up the nose and made the mark.

slt200mph

iTrader: (42)

5th is over drive and 6th is over over drive...

rbobryk20

Mastermind how many RPMS were u running when u hit 173?

Var

iTrader: (1)

How fast do you guys think the same car could go with a shortened 6th gear and everything else stock?

Third Gear

iTrader: (3)

Assuming he has stock size tires, and using a 2.73 rear end he would hit 173 MPH at about 6100 RPM in 4th. A 3.73 would be close to the same RPM but in 5th.

1BadAction

iTrader: (10)

6300 here in 5th @ 178... still had more but i lost my *****.

stone4779

iTrader: (2)

Same here....but I lost room

Probably wouldnt go any more anyways, though...it does take longer than I thought to get up there...you dont accelerate as fast once you get to like 140....

MadBill

My bet is that the average C6 Z06 will run 203 to 205 MPH, but that after a century of dealing with lawyered-up idiots, GM's attorneys know they'll get sued if they claim 200 and somebody's will 'only' do 199.

Hugger Z

iTrader: (4)

You are correct here.

Power=1/2(Drag Coefficient)(Air Density)(Frontal Area)(Velocity^3)

I checked and you are correct. 100hp @ 100mph would need to be 800hp @ 200mph.

DONAIMIAN

iTrader: (18)

check his sig.....hes been up there a couple of times.

As for the C6, I think with a tune it could break 200, if not with better air. If for some reason that dosent work you have the option of lowering the car or taking off the mirrors, if not just taping up the seams.

Racehead, im curious as to what you you do to keep things going smooth at thoes speeds. I was thinking the camaro had the advantage up at thoes speed with the ability of it being easier to convert it to a front breather, eliminating the air dam and lowering the car more. Id also imagine you prolly have either 0 toe or toe in to make it not as twitchy up there. Also wouldnt mind hearing what aero mods could you can do to the trans am without really cutting stuff up.

1BadAction

iTrader: (10)

toe-in makes the car more stable, no toe or toe-out makes it more twitchy. caster also has an effect on the feel.

lol@sig quote... U would have lost your ***** too if a critter ran in front of you at that speed.

Racehead

Lot's of stuff Heim joints on every suspension piece, most of which are LG motorsports pieces. Koni D/A's, car is lowered down as far as I can go and still retain enough suspension travel to work ( 25 1/2" ), Nope, the advantage goes to the T/A with the slightly more aerodynamic shape and the MUCH better rear spoiler. The stock SS spoiler doesn't do anything, and the aftermarket spoilers for them are for road course stuff which run at lower speeds and so create too much down force at high speeds upsetting the chassis. Converting to a front breather so that you can mount a larger/lower front air dam only becomes necessary at speeds well above 180 mph. My car is rock solid at 175 mph as is Good guess My alignment specs are "0" toe-in, .5 degree negative camber and 4.5 degrees caster. There's a bunch of aero mods that any car can do without cutting **** up. None of which have been done to my car. Bottom line is that with the proper stance ( nose slightly down/tail up ) and the proper suspension pieces, ride height, and alignment angles a WS6 is a very stable platform as is up to about 185/190 mph. Not to say it would fly off the road above this, but I've heard repeatedly from those that seem to know that the stock WS6 hood will rip itself off the car above 190 mph without addition pinning Anyway if you fab up a front air dam in the stock location that runs the whole width of the car and actually touches the ground and just let the road grind it down to zero clearance it would be highly beneficial at high speeds. Not as good as converting to a front breather and moving the spoiler all the way out front, but certainly better than stock.

DONAIMIAN

iTrader: (18)

Since I went to the alignment rack I tried out thoes specs since they were easy to remember. So far I like em, its not as responsive as it used to be, but it feels rock solid from 0-120 so far. The car feels really comfortable, it dosent follow ruts in the road but yet when I turn the wheel it dosent get that unstable feeling in the middle of the turn. I might go ahead and lower it some more before my warranty on this alignment runs out They were even nice enough to play around with the LG control arms that I have and we got the thrust angle at .0. I was really supprised when I got 5.55L and 6.28R for my caster.

BTW:what drive shaft are you running?

The Dragon

iTrader: (6)

Hehe. . . that hood is the very same reason why I pull my buddy's '02 Forged 347 H/C WS6 in 5th EVERY TIME

Even on the old set-ups when I would be down 30 or even 40 rwhp to his car, I walk him at high speeds.

He would create a 3 - 5 car lead through 4th gear and I would make up ground, catch him, and put 2 -3 CARS on him in 5th

Now I can emabrass his car with my rwhp aero.

I like the WS6 aggressive hood but I LOVE my aero-dynamic hood