Apparently the aero is such that it sucks the windows out at speed. Seems the C5s suffer from that too and so the C6 has an upper track that traps the glass and the door automatically drops the window .25" when you open it.

Have you noticed any windnoise or a draft type feel, in the 02 around the top d/s corner of the windshield, or maybe the front of the window at normal highway speeds?

I swear I have an air leak in my '02 T/A. It doesn't leak water there, but in the winter I can feel cold air on my steering hand coming from somewhere but can't track it down.

And around 80 or so I can hear wind noise pretty bad. But I don't know when the glass pulling starts.

 

ive had my formula up to about 130 and it was perfectly stable. I am gonna get it to 150 but i wanna change my suspension first.

 

I can hear a slight whistle start @ 65. I always thought it was the side mirror aerodynamics that was the main cause of it. At 130+ the noise isn't as easy to tell the source of. It seems like it's all over. At those speeds I am more in tune with steering wheel feel. I just notice at crazy speeds that I can feel a slight tug left or right intermittantly from the steering wheel. Looking at all the openings on the front of the car gives an obvious picture of why the atmoshere isn't cooperating. I was just wondering if anyone else had similar deals or if I was the only one with the high horsepower brick.

 

Well, there aren't really that many openings. The parking lights are sunk in, that's something of an air trap and could be a problem I suppose, but the lower holes are supposed to (I think) feed air to the front brakes, and the central holes (2 or 4) feed the intake (and though some say otherwise, I swear that most of the "ram air" happens from the 2 lower holes, and that apparently it would be the same on the flat hood :::shrug::: ), and underneath you have the air dam for the rad.

Look at most any other car - big upper grill, lower grill, light recessions, and the same brake ducts.

In the comparison of your 2 cars. The LT1 era had recessed lights as well. And the 'traditional' air dam. Not much differnce. Just an intake and brake ducts.

I haven't heard any complaints of stability from the WRX or STi guys. They should have it worse in the "front end full of holes" dept.

Could be your suspension, or ride height, or tires, or wheel balance, or alignment, or contact patch size (in combination with odd road surfaces), or just timing that the wind was blowing worse on the day you were in the '02 (strange as it might seem).

If you're really curious, you could work at eliminating these variables. Just match everything up between the 2 cars and see.

The 94 might have an advantage in that it appears to be lower and sharper, but that doesn't mean that the 02 would be problematic either.

 

You're the one posting info about topping out your car on a public road and looking at the speedometer and saying "wow, I'm going 150" and talking about the aerodynamics of stock domestic pony cars...I think you're the one who needs to relocate to the riceburner site, my friend. By the way just because the needle of the speedo is sitting on the peg doesn't mean you're going 150+ but we don't need to go over that again. If you'd like to know more about how tire circumference and gear ratio effects speedo readings you could do a quick google search. Also try and look up the article I mentioned, there's some valuable info on there. Your posts on this thread, your attitude, your luke warm knowledge of vehicle dynamics, and your comment about your Firehawk pulling away from your LT1 "like it's running on 7 cylinders" all strongly suggest that you're driving your first LS1. Just be careful my friend, you can get yourself in some serious trouble with that much power, a heavy foot, and little experience.

 

I think am talking about baud rate. The GPS ground speed sensor I have messed with had a manual select baud rate of 4800, 9600, or 19200. It was a speed sensor that could plug into any GPS outputting VTG or RMC. But anyhow, I wont argue with you because it sounds like your GPS knowledge exceeds mine. But just for the conversation let's say a GPS speed sensor intentionally puts your location within a certain radius. Is it not possible that it could accurately measure distance traveled within this radius? Pinpointing an exact location and measuring distance traveled could be two different situations, could it not? The unit I messed with in my buddy's old 930 claimed to be accurate to less than 0.5% discrepancy from 0.5 to 100 kilometers per hour (German manufactured).

 

Go away little boy. I am a grown man who has been around mega-dollar small blocks all my life. My father has his own engine shop and engine dyno in his backyard shop!!! I know more about engines and possiblilties right now than you will know when you die. Please go change your diaper and quit posting your weak dick, snivvling little brown nose comments here. You are not respected and will never be. Lets not turn this into a flame thread, because I have found all the info I need and there is no more use for this thread. Let this die, If you want to settle it way I want to, hopefully you live near Atlanta and can meet in person. Then we can .... talk I will not post this thread anymore unless you want to tell me where to meet you. Good bye

 

A grown man who slings insults involving fecal matter and threatens to beat people up on the internet? And an LS1 newbie to boot.

 

I just looked at your post history. The questions aren't bad... for a woman. By the way 'maam, this is my second LSx car. My other is a Z06. Your other car is a '91 Rustang. hot stuff.

 

Is the speedo accurate in the Z06? In all seriousness a pissing match over speedo accuracy isn't necessary. I'm not here to argue over the internet, I'm just hear to build an F-body. Truce?

 

Truce. I don't know everything. I do know that I'm hard headed and mean at times. Sorry bro.

 

Anyone do 140+ with the T-tops off and the windows down? It's noisy as hell.

 

In theory, if it could track your dot (say 15 feet) precisely, yes it could tell you your exact speed. But that puts you at the center of that dot, and therefore, is not an imprecise measurement at all. Precision is precision. You can't say too precisely what an objects speed is without knowing where it is at the begining and end of the measurement. Don't forget to factor in market-speak too. And being German doesn't make it have less marketing.

All of that is irrelevant to the thrust of this thread.

Firehawk#608 - what gear were you in, and what revs were you at? And is the car still wearing it's stock rolling stock and gearing? And is it an M6?

At about 5500rpm in 5th, it's around 164mph. That's basically the top of 5th. People who have gotten to the top of fith, were going that fast. And I've not heard of anyone getting a smaller total diameter when changing wheels, so if anything, they'd be going faster.

I just don't see this argument against their speed capability.

 

My stock suspension 96 Z28 at over 120 felt like it was floating around on the highway. As for my Bilstien Level 2 suspension optioned Formula Hawk (the Speedo read close to 160) and the suspension felt just as stable as when I do 90 on the highway. It might be due to no gaps in what spoiiler I do have unlike the T/A and Camaro. The road I did both of these runs on were 5 lanes and many miles of straight road at 3am when this was done only once. My car is an A4 with 2800 stall and a LS6 engine. I can not base the top end of a stock LS1 motor but (the feel) of the car at high speeds is excellent and there is a plce in Texas to go test your car at top speeds. People that go there are usually testing for the Bonnoville Salt Flats.

 

My '02 has an M6. Stock chrome 17 inchers for the rolling stock. I've held 5th gear close to redline, then shifted to 6th. A few seconds after that it hit the speed limiter. That was VERY scary. I was expecting it to happen; if I didn't know that and wasn't braced for it, the jolt would have been enough to lose control...R.I.P I would advise anyone who runs on the circle tracks to get that limiter raised. As for the other question about the T-tops off, I've been to 135 a few times and it's loud but the buffeting isn't as bad as you'd think.

 

And the limiter is set at 160 (or was it something like 162?). Thus, there is no question that these cars are MORE than capable of 150+mph speeds.

 

Dat be da troot!!! These cars are very impressive right out of the box.

 

Does your hood on the hawk look like its rippling or waving a bit at high speed?

 

Ive had mine past 160.

I have a navagation system that shows MPH. =)

 

Top speed for a 1993 LT1 is 155 as tested by several magazines bone stock.