A-4 - 3.42 owners......
Melting Slicks
Joined: Feb 2002
Posts: 2,613
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From: Winston Salem NC
Race Director
Joined: Apr 2003
Posts: 19,352
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From: Tampa, Florida
Top Speed of an A4 with 2.73's is 182mph. This info was previously posted on GM's website. Can you hit 182mph with a stock A4? Yes. I remember a dyno day we had last year. My stock A4 was the only car above 180mph.
Melting Slicks
Joined: Jun 2001
Posts: 2,743
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From: Davie Florida
Originally Posted by jim2527
Top Speed of an A4 with 2.73's is 182mph. This info was previously posted on GM's website. Can you hit 182mph with a stock A4? Yes. I remember a dyno day we had last year. My stock A4 was the only car above 180mph.
Thread Starter
Melting Slicks
Joined: Dec 2002
Posts: 3,296
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From: Friendswood, Tx
Many thanks to those who finally helped me with my question 
....I had guessed my car would end up at redline in the mid 160's....so it sounds like I wasn't too far off.
Thanks again guys, drive safe.
....I had guessed my car would end up at redline in the mid 160's....so it sounds like I wasn't too far off. Thanks again guys, drive safe.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Top Speed of an A4 with 2.73's is 182mph. This info was previously posted on GM's website. Can you hit 182mph with a stock A4? Yes. I remember a dyno day we had last year. My stock A4 was the only car above 180mph
if on the dyno, then that doesn't represent real life useage on the street (where air resistance is your enemy on a top end run).
Last edited by Mike Mercury; Feb 11, 2005 at 10:31 AM.
Race Director
Joined: Apr 2003
Posts: 19,352
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From: Tampa, Florida
Mike, both. As we all know coupes are more aerodynamic than FRC's therefore both manual and automatic equipted C5 coupes have a top speed higher than a Z06. C5's are only top speed drag limited in overdrive. 182mph is a Chevrolet documented top speed for an A4 C5.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
C5's are only top speed drag limited in overdrive
Mathematically - what is the max MPH in 3rd then (1:1 ratio in the A4) ?
Safety Car
Joined: Jun 2003
Posts: 4,640
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From: Sunshine State
Originally Posted by jim2527
Mike, both. As we all know coupes are more aerodynamic than FRC's therefore both manual and automatic equipted C5 coupes have a top speed higher than a Z06. C5's are only top speed drag limited in overdrive. 182mph is a Chevrolet documented top speed for an A4 C5.
Bob
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Melting Slicks
Joined: Nov 2004
Posts: 2,275
Likes: 6
From: Lake Oswego, Near Portland Oregon
I have 3.15, wish I had 3.42 for a tad more skat. Unless on a road racing course, or perhaps drag strip, anything above 120 MPH is kind of useless to me ...I would gladly trade some top MPH for more torque at the wheels under 80 MPH where it gets actually driven every day. What other ratios are available in the the 3.8 or 4.1 range???? After I finish the mods I have in line to do, a shorter rear ratio would be frosting on the cake.
Drifting
Joined: Mar 2003
Posts: 1,398
Likes: 1
From: Kingsport TN
Busa, I have a 3.42 rear, with stock motor, A&A Procharger kit. I did a top end run a couple of months ago. I was only able to get to 155 mph when I hit the rev limiter in overdrive. There's real world data for you, not theory.
Instructor
Joined: Nov 2004
Posts: 210
Likes: 0
From: Greenville, South Carolina Drive It Like You Stole It !!!
St. Jude Donor '05
Easiest way is to look at the sticker in the Glove Box....Providing the Rear end has not been changed........
G92=3.15
GU2=2.73
Hope this helps !!!!!!!!
G92=3.15
GU2=2.73
Hope this helps !!!!!!!!
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
How can you tell which gear ratio you have in your A-4? Say for example how many RPM@60 mph or something like that....
Russ
Russ