finally... the 12's !!!
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
finally... the 12's !!!
Although I don't consider myself a drag racing enthusiast, I am still interested in my 2002 A4 Coupes performance in general. And many here might remember my long quest to dip into the 12 second range in the 1/4 mile; but I couldn't seem to ever get there.
Tonight I did it !!!!
and another run of 12.973 proved it wasn't a fluke. I parked the car after that. A few asked why I had parked and I said the 12's were all I was aiming for; and now since I reached it I was going to relax the rest of the night.
the last time at the track (about 2 months ago) I ran the 1/4 mile 20 times in 2 hours at a special track day. Most runs were in the 13.15 area. And a fluke run reached 13.06 which was my best; and my only run into the 13.0x arena. This was after weeks of Predator tweaks on my A4 tranny and some advancement of timing... but the 12's were just out of reach.
What Changed??? AFR tuning
Thanks to many here that introduced me to AFR tuning... especially Phil97SVT who posted a very detailed thread awhile ago about using a wide band O2 device.
to make a long story short, I purchased a WB O2 setup, found my WOT AFR was seriously rich (11.5 to 11.85), and adjusted it with my Predator to around 12.5 on average.
During my first run tonight, I knew the car was running better. The engine seemed smoother than it had ever been during WOT, and the SOTP meter was registering a little more pull. I was elated when I saw my time slip of 12.934... and this on my second run of the night... and a little rusty on the launching technique.
But, fearful it was a fluke, I ran again getting the 12.973
So, I knew it was for real.
Without the CorvetteForum, I would still be in the 13.3 - 13.4 range.
Thanks to all of you who share your experiences
My 2002 A4 Coupe performance mods:
*Z06 air lid
*K&N drop in OEM-type filter
*Z06 titaniums
*gutted precats
*3.42 rear axle ratio (stock TC)
*Predator tuning
factory tires
Tonight I did it !!!!
and another run of 12.973 proved it wasn't a fluke. I parked the car after that. A few asked why I had parked and I said the 12's were all I was aiming for; and now since I reached it I was going to relax the rest of the night.
the last time at the track (about 2 months ago) I ran the 1/4 mile 20 times in 2 hours at a special track day. Most runs were in the 13.15 area. And a fluke run reached 13.06 which was my best; and my only run into the 13.0x arena. This was after weeks of Predator tweaks on my A4 tranny and some advancement of timing... but the 12's were just out of reach.
What Changed??? AFR tuning
Thanks to many here that introduced me to AFR tuning... especially Phil97SVT who posted a very detailed thread awhile ago about using a wide band O2 device.to make a long story short, I purchased a WB O2 setup, found my WOT AFR was seriously rich (11.5 to 11.85), and adjusted it with my Predator to around 12.5 on average.
During my first run tonight, I knew the car was running better. The engine seemed smoother than it had ever been during WOT, and the SOTP meter was registering a little more pull. I was elated when I saw my time slip of 12.934... and this on my second run of the night... and a little rusty on the launching technique.
But, fearful it was a fluke, I ran again getting the 12.973
So, I knew it was for real.
Without the CorvetteForum, I would still be in the 13.3 - 13.4 range.
Thanks to all of you who share your experiences
My 2002 A4 Coupe performance mods:
*Z06 air lid
*K&N drop in OEM-type filter
*Z06 titaniums
*gutted precats
*3.42 rear axle ratio (stock TC)
*Predator tuning
factory tires
Last edited by Mike Mercury; Oct 28, 2004 at 11:11 PM.
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
Originally Posted by Mike Mercury
Although I don't consider myself a drag racing enthusiast, I am still interested in my 2002 A4 Coupes performance in general. And many here might remember my long quest to dip into the 12 second range in the 1/4 mile; btu I couldn't seem to ever get there.
Tonight I did it !!!!
and another run of 12.973 proved it wasn't a fluke. I parked the car after that. A few asked why I had parked and I said the 12's were all I was aiming for; and now since I reached it I was going to relax the rest of the night.
the last time at the track (about 2 months ago) I ran the 1/4 mile 20 times in 2 hours (at a special track day). Most runs were in the 13.15 area. And a fluke run reached 13.06 which was my best; and my only run into the 13.0x arena. This was after weeks of Predator tweaks on my A4 tranny and some advancement of timing... but the 12's were just out of reach. During the last few of those 20 runs, I got to know how to launch this car well and that's when I scored the 13.06
What Changed??? AFR tuning Thanks to many here that introduced me to AFR tuning... especially Phil97SVT who posted a very detailed thread awhile ago about using a wide band O2 device.
to make a long story short, I purchased a WB O2 setup, found my WOT AFR was seriously rich (11.5 to 11.85), and adjusted it with my Predator to around 12.5 on average.
During my first run tonight, I knew the car was running better. The engine seemed smoother than it had ever been during WOT, and the SOTP meter was registering a little more pull. I was elated when I saw my time slip of 12.934... and this on my second run of the night... and a little rusty on the launching technique.
But, fearful it was a fluke, I ran again getting the 12.973
So, I knew it was for real.
Without the CorvetteForum, I would still be in the 13.3 - 13.4 range.
Thanks to all of you who share your experiences
My 2002 Coupe performance mods:
*Z06 air lid
*K&N drop in OEM-type filter
*Z06 titaniums
*gutted precats
*3.42 rear axle ratio (stock TC)
*Predator tuning
factory tires
Tonight I did it !!!!
and another run of 12.973 proved it wasn't a fluke. I parked the car after that. A few asked why I had parked and I said the 12's were all I was aiming for; and now since I reached it I was going to relax the rest of the night.
the last time at the track (about 2 months ago) I ran the 1/4 mile 20 times in 2 hours (at a special track day). Most runs were in the 13.15 area. And a fluke run reached 13.06 which was my best; and my only run into the 13.0x arena. This was after weeks of Predator tweaks on my A4 tranny and some advancement of timing... but the 12's were just out of reach. During the last few of those 20 runs, I got to know how to launch this car well and that's when I scored the 13.06
What Changed??? AFR tuning
Thanks to many here that introduced me to AFR tuning... especially Phil97SVT who posted a very detailed thread awhile ago about using a wide band O2 device.to make a long story short, I purchased a WB O2 setup, found my WOT AFR was seriously rich (11.5 to 11.85), and adjusted it with my Predator to around 12.5 on average.
During my first run tonight, I knew the car was running better. The engine seemed smoother than it had ever been during WOT, and the SOTP meter was registering a little more pull. I was elated when I saw my time slip of 12.934... and this on my second run of the night... and a little rusty on the launching technique.
But, fearful it was a fluke, I ran again getting the 12.973
So, I knew it was for real.
Without the CorvetteForum, I would still be in the 13.3 - 13.4 range.
Thanks to all of you who share your experiences
My 2002 Coupe performance mods:
*Z06 air lid
*K&N drop in OEM-type filter
*Z06 titaniums
*gutted precats
*3.42 rear axle ratio (stock TC)
*Predator tuning
factory tires
My goal is 11.99 and if they don't like it... too bad...
Melting Slicks
Joined: Aug 2004
Posts: 2,369
Likes: 0
From: Cranford, New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11
Originally Posted by Mike Mercury
Although I don't consider myself a drag racing enthusiast, I am still interested in my 2002 A4 Coupes performance in general. And many here might remember my long quest to dip into the 12 second range in the 1/4 mile; but I couldn't seem to ever get there.
Tonight I did it !!!!
and another run of 12.973 proved it wasn't a fluke. I parked the car after that. A few asked why I had parked and I said the 12's were all I was aiming for; and now since I reached it I was going to relax the rest of the night.
the last time at the track (about 2 months ago) I ran the 1/4 mile 20 times in 2 hours at a special track day. Most runs were in the 13.15 area. And a fluke run reached 13.06 which was my best; and my only run into the 13.0x arena. This was after weeks of Predator tweaks on my A4 tranny and some advancement of timing... but the 12's were just out of reach.
What Changed??? AFR tuning Thanks to many here that introduced me to AFR tuning... especially Phil97SVT who posted a very detailed thread awhile ago about using a wide band O2 device.
to make a long story short, I purchased a WB O2 setup, found my WOT AFR was seriously rich (11.5 to 11.85), and adjusted it with my Predator to around 12.5 on average.
During my first run tonight, I knew the car was running better. The engine seemed smoother than it had ever been during WOT, and the SOTP meter was registering a little more pull. I was elated when I saw my time slip of 12.934... and this on my second run of the night... and a little rusty on the launching technique.
But, fearful it was a fluke, I ran again getting the 12.973
So, I knew it was for real.
Without the CorvetteForum, I would still be in the 13.3 - 13.4 range.
Thanks to all of you who share your experiences
My 2002 Coupe performance mods:
*Z06 air lid
*K&N drop in OEM-type filter
*Z06 titaniums
*gutted precats
*3.42 rear axle ratio (stock TC)
*Predator tuning
factory tires
Tonight I did it !!!!
and another run of 12.973 proved it wasn't a fluke. I parked the car after that. A few asked why I had parked and I said the 12's were all I was aiming for; and now since I reached it I was going to relax the rest of the night.
the last time at the track (about 2 months ago) I ran the 1/4 mile 20 times in 2 hours at a special track day. Most runs were in the 13.15 area. And a fluke run reached 13.06 which was my best; and my only run into the 13.0x arena. This was after weeks of Predator tweaks on my A4 tranny and some advancement of timing... but the 12's were just out of reach.
What Changed??? AFR tuning
Thanks to many here that introduced me to AFR tuning... especially Phil97SVT who posted a very detailed thread awhile ago about using a wide band O2 device.to make a long story short, I purchased a WB O2 setup, found my WOT AFR was seriously rich (11.5 to 11.85), and adjusted it with my Predator to around 12.5 on average.
During my first run tonight, I knew the car was running better. The engine seemed smoother than it had ever been during WOT, and the SOTP meter was registering a little more pull. I was elated when I saw my time slip of 12.934... and this on my second run of the night... and a little rusty on the launching technique.
But, fearful it was a fluke, I ran again getting the 12.973
So, I knew it was for real.
Without the CorvetteForum, I would still be in the 13.3 - 13.4 range.
Thanks to all of you who share your experiences
My 2002 Coupe performance mods:
*Z06 air lid
*K&N drop in OEM-type filter
*Z06 titaniums
*gutted precats
*3.42 rear axle ratio (stock TC)
*Predator tuning
factory tires
...congrats, and thanks for the post a while back with the measurements for the ramps. Im about to start making them at work.Thanks again,
Mike
Racer
Joined: Sep 2004
Posts: 384
Likes: 0
From: Sarasota FL
So you think the tunning is what got you under 13. I have an A4 with the Halltech Stinger best so far 13.45. Would like to join you in the 12sec club one day.
Last edited by ecook; Oct 28, 2004 at 10:56 PM.
Race Director
Joined: Jan 2002
Posts: 14,189
Likes: 289
From: Shitcago IL
St. Jude Donor '04-'05-'06-'07-'08
I hit 12s on my first run during my first time on the track. I was so excited and couldn't believe it. I was aiming for mid to high 13s, so I got a nice surprise when I got the timeslip.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Le Mans Master
Joined: Oct 2002
Posts: 6,772
Likes: 1
From: Tampa FL
Originally Posted by Mike Mercury
My 2002 A4 Coupe performance mods:
*Z06 air lid
*K&N drop in OEM-type filter
*Z06 titaniums
*gutted precats
*3.42 rear axle ratio (stock TC)
*Predator tuning
factory tires
*Z06 air lid
*K&N drop in OEM-type filter
*Z06 titaniums
*gutted precats
*3.42 rear axle ratio (stock TC)
*Predator tuning
factory tires
that's it...wow.
Drifting
Joined: Jun 2003
Posts: 1,277
Likes: 0
From: Litchfield Park Arizona
That kicks ***! Congrats to you! Im so excited to hear this, as it keeps me motivated to keep trying for the 12's myself. Take care and congrats again!
Keep it up and let us know when you decide to shoot for 11's. Maybe we can help with that too!
Tanya
Keep it up and let us know when you decide to shoot for 11's. Maybe we can help with that too!
Tanya
Safety Car
Joined: Jul 2002
Posts: 4,174
Likes: 15
From: Florida
Originally Posted by DRKNGHT
That's great! Congratulations!
2002 A4 Quicksilver Coupe
3.42's (stock tc)
Corsa Indys
Blackwing with High Flow Airduct
Ported Throttle Body
Diablosports Predator
Did you send back to Diablosport for any new updates, other than the gear scaling issue for 3.42's ???
Race Director
Joined: Jan 2002
Posts: 19,557
Likes: 1,470
From: I love you & miss you Linda
2017 C7 of the Year Finalist
St. Jude Contributor
Way to go and a respectable 60' time to boot. If that was your first time in the 12's I'd be willing to bet it's also your first time to have a 60' time under 2 seconds. That 60' time helps.Nice runs.
Le Mans Master
Joined: Feb 2000
Posts: 5,789
Likes: 0
From: Athens Ohio
SE Ohio Event Coordinator
CI-V Car Show Winner
Cruise-In II Veteran
Cruise-In III Veteran
Curise-In V Veteran
Cruise-In VI Veteran
Congrats, Tim. That is an excellent time for your set up and stock tires.
That is an excellent time for your set up and stock tires.
Melting Slicks
Joined: Feb 2004
Posts: 2,903
Likes: 0
From: I finished a Marathon, did you? Michigan
CI 6-7, 9-10 Veteran
Well after seeing that, I now know I should hit the 12's so far my best in my A4 with only the air filter changed is 13.14. Coming soon is a set of LG headers, Corsa Indys and a Dyno tune. That should set me about right to hit the 12's. Congrats on reaching your goal.
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Did you send back to Diablosport for any new updates, other than the gear scaling issue for 3.42's ???
Burning Brakes
Joined: Apr 2004
Posts: 995
Likes: 0
From: Troy MI
Don't forget that if you go again next summer or something, Air Conditions can play a pretty big Role in that time! I just wanted to throw that out there if you drop a little time on a hot day. Yesterday was a GREAT Day to run at a strip, nice cool air and it didn't seem too humid!!! We went a while back and from the start of the night to the end I was dropping approx. 0.2-0.3 on my times so if you were running in the 13.1's you would be able to gain it with the cool weather. I am still trying to get where you are, CONGRATS!!!!!!!!!!
What is your RWHP on a dyno with your mods???? With my mods I'm at 322 and could only pull a 13.22. Just looking for that Holy Grale of 12 myself.
What is your RWHP on a dyno with your mods???? With my mods I'm at 322 and could only pull a 13.22. Just looking for that Holy Grale of 12 myself.
