C1vs C2 vs C3 Aerodynamics

[Michael F.]

Re: C1vs C2 vs C3 Aerodynamics

In 1970 took my first corvette..67 435 coupe...to 155 (by speedo) on unopened new freeway in Arkansas. I was young and stupid and the front was very light and since I survived I decided never to do that ever again and settled on another dumb pursuit, street racing and little safer drag racing. Going low 13 sec @ 108-110 quenched my thirst for speed. Fast forward to today, my 2003 zo6 is very stable at 140 with ac and radio blasting and has more if for some reason I felt the need. Further note, several years ago I had my 70 LT-1 up to 140 and ran out of rpm.

[William F.]

Re: C1vs C2 vs C3 Aerodynamics

Congrats and thanks for great pics!

[William F.]

Re: C1vs C2 vs C3 Aerodynamics

Congrats were for David Gray

[William F.]

Re: C1vs C2 vs C3 Aerodynamics

Radio?, radio? Don't need no stinkin' radio. Listen to the engine-exhaust note-bet the '67 was sweeter. (AC is nice though)

[Bill M.]

Re: C1vs C2 vs C3 Aerodynamics

those data I assume are at the same road speed, which is probably about 70 MPH. Can you confirm?

Duke

The speed is buried in the article: 85 mph

[Jim C.]

Re: C1vs C2 vs C3 Aerodynamics

I was involved with road racing back in the 60s. I remember many of the C2 roadracers getting rid of their C2s in favor of the new C3. Even though we didn't know much about aero then, the buzz was that the C3s were more aero than the C2s. I believe that may also have come down from GM. Those new C3 roadracers were really good looking.

[Duke W.]

Re: C1vs C2 vs C3 Aerodynamics

The speed is buried in the article: 85 mph

Article? What and when? Can you post in its entirety? That's a lot of aero data, which would require a lot of testing. I'd like to know more about how they went about developing the data. All the coefficients - drag and lift should be calculated from the measured drag and lift.

Duke

[Jimmy G.]

Re: C1vs C2 vs C3 Aerodynamics

I have or have had a C-1, C-2 and C-3, C-4 and C-6. 1. C-1 Lowe's Motor Speedway 125 gets interesting to drive and even more interesting to stop 2. C-2 at 140 it gets interesting 3. C-3 Old 1972 454 3.08 155 MPH valves floating still stable 4. C-4 never been in one with enough guts to make a good high speed run 5. C-6 2008 Z-06 tweeked by a Hendrick performance expert 193 and ran out of road

[Bill M.]

Re: C1vs C2 vs C3 Aerodynamics

Article? What and when? Can you post in its entirety? That's a lot of aero data, which would require a lot of testing. I'd like to know more about how they went about developing the data. All the coefficients - drag and lift should be calculated from the measured drag and lift.

Duke

[Terry M.]

Re: C1vs C2 vs C3 Aerodynamics

I have or have had a C-1, C-2 and C-3, C-4 and C-6. 1. C-1 Lowe's Motor Speedway 125 gets interesting to drive and even more interesting to stop 2. C-2 at 140 it gets interesting 3. C-3 Old 1972 454 3.08 155 MPH valves floating still stable 4. C-4 never been in one with enough guts to make a good high speed run 5. C-6 2008 Z-06 tweeked by a Hendrick performance expert 193 and ran out of road

C6 (and I would assUme C7) are no fair in this discussion. They are designed from the first computer screen for all the aero tweaks they can figure out at the time. Comparing today's automobiles to forty and fifty year old cars is just not right.

Four or five of us from this board with then-new C6s got to 140-150 on the Milford straight, and that was just cruising. The guys at the back were trying to catch-up, but those of us in front were not even at full throttle. It was a little weird to shift into 6th at 150, but it did remind me of an old rock-a-billy song that has to do with a Cadillac.

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[Tom P.]

Re: C1vs C2 vs C3 Aerodynamics

How often and just how many people will be driving their 56-67 Corvettes --------------------------ON A REGULAR BASIS--------------------- above 100mph anyway??????????????
Properly tuned and with a good alignment, good steering and good tires, MOST of us will be doing our speed blasting between 20 and 100 mph. And that's where these cars are the most fun to drive. Above 100mph, the fun goes away because extreme concentration is being exercised to assure the car is under full control and is safe. So what the heck does it matter (for MOST of us) what the aerodynamics is between 120 and 200mph???
Good grief!

[Walter F.]

Re: C1vs C2 vs C3 Aerodynamics

Guess we can say the brief test in ' Biography of a sports car" with Dick Thompson and Dave MacDonald was pure bull. How did Dave say it' It not only looks like a dream car but it handles like one especially at HIGH SPEEDS.Have to wonder what they were really thinking? But I would still give anything to own one.

[Jimmy G.]

Re: C1vs C2 vs C3 Aerodynamics

My objective every time I take out the '60 is to do 100 MPH before returning home so I do it very frequently modern radials of course

[Joe C.]

Re: C1vs C2 vs C3 Aerodynamics

Guess we can say the brief test in ' Biography of a sports car" with Dick Thompson and Dave MacDonald was pure bull. How did Dave say it' It not only looks like a dream car but it handles like one especially at HIGH SPEEDS.Have to wonder what they were really thinking? But I would still give anything to own one.

I had a little run-in with some "yutes" in a souped up WRX last month. My engine is "slightly" more powerful than an original 327, so in the process of beating this (very, very respectable Suburu WRX), the car was at 140 MPH before I realized it. Steering didn't feel light at all.

The midyear Corvettes handle very well with radial tires, especially the excellent Pirelli P4000's that I special ordered 2 years ago. I teach modern sport sedans and sport coupes to respect me. A new BMW coupe was messing with me on the highway, and after awhile we both got off at the same 270 degree exit ramp. He had just passed me for the third time just before the ramp, and had slowed to about 50 on that one lane ramp. I passed him on the outside with no tire squeal at all. His eyes almost popped out of his head.

There is a guy on the CF who did aero mods to the underside of his midyear coupe. He got it up over 200 MPH in a standing mile. The only noticeable modification was his own designed chin spoiler.

[Duke W.]

Re: C1vs C2 vs C3 Aerodynamics

Thanks for posting the article, but is there a page missing... page 35?

Duke