[Z06] aerodynamics question
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Joined: May 2004
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From: memphis tn
aerodynamics question
howdie, i was taking my black Z in for its first (FREE) oil change. when i pulled up i saw a gorgeous '96 Grand Sport. after it left a red '94 pulled up behind me and got me thinking: "which car is more aerodynamic , a C4 or a C5?" i heard that the C4's are more stable at top speeds(i've never had my car past 110). thanx abunch 
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From: Atlantis
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Re: aerodynamics question (jimmy2004)
Aerodynamic stability and aerodynamic drag are two seperate parameters.
The C5 has less 'CD' or coefficient of drag than the C4. Smaller CD is more/better.
Stability can change with velocity whereas CD is a constant.
I don't know which is more stable at a specified speed.
[Modified by VetNutJim, 8:17 AM 6/9/2004]
The C5 has less 'CD' or coefficient of drag than the C4. Smaller CD is more/better.
Stability can change with velocity whereas CD is a constant.
I don't know which is more stable at a specified speed.
[Modified by VetNutJim, 8:17 AM 6/9/2004]
Burning Brakes
Joined: Dec 2001
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From: Pittsburgh PA
Re: aerodynamics question (jimmy2004)
c5s have less drag, alot of that has to do with the bigger rear end on the c5. i've heard c4s r more stable at speed also, but i'm not positive. to me, the c4 looks like it would be more aero dynamic, but i guess it isnt.
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From: Rapid City SD
Re: aerodynamics question (jimmy2004)
It could be that the higher cd on the C4 is a result of additional downforce, which would make the c4 more stable at 140+, where downforce/ground effects really start to come into play. Haven't had the z06 up that fast, but the zr1 was rock solid at 130+.
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From: Draper Ut
Re: aerodynamics question (jimmy2004)
My neighbor and I have taken my C5 and his ZR1 over 160 mph several times and he agrees more than I that the C5 is more stable at higher speeds. Granted my C5 is lowered, has T1's; IAS shocks, and wider rubber all the way around; but his ZR1 is also sporting new treads and I believe has upgraded shocks. Can't remember which magazine I read, but it stated the C5 as being one of the most aerodynamic cars ever produced. My .02 
Le Mans Master
Joined: Oct 2001
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From: Southern California
Re: aerodynamics question (jimmy2004)
Stock vs. stock, a C5 coupe is more aerodynamic than any C4, but can you believe that there's a version of the Lexus 430 4-door sedan with an even lower Cd than any vette? The Lexus 430 that lowers itself at speed is more slippery through the air than a vette, just amazing...
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From: Virginia
Re: aerodynamics question (The Batman)
Stock vs. stock, a C5 coupe is more aerodynamic than any C4, but can you believe that there's a version of the Lexus 430 4-door sedan with an even lower Cd than any vette? The Lexus 430 that lowers itself at speed is more slippery through the air than a vette, just amazing...
