1/8 mile time question
Thread Starter
Intermediate
Joined: Aug 2005
Posts: 39
Likes: 0
1/8 mile time question
I have an '02 A4 Convertible and took it to the track here in TX for the first time today. The temp was between 97 and 100 degrees. It is basically stock w/ Borla Stingers, 160 degree thermostat, T/B bypass, K&N with a modified stock box, silicone air bridge and 3.15 gears. My best time was 8.755 @ 82.38 and my highest speed was 83.08. Taking in to account my best reaction time was .010 and averaged about .10, and the high temp, do my numbers sound about right? Thanks.
Burning Brakes
Joined: Jun 2002
Posts: 996
Likes: 0
From: Frisco Texas
Originally Posted by MarineVette5
I have an '02 A4 Convertible and took it to the track here in TX for the first time today. The temp was between 97 and 100 degrees. It is basically stock w/ Borla Stingers, 160 degree thermostat, T/B bypass, K&N with a modified stock box, silicone air bridge and 3.15 gears. My best time was 8.755 @ 82.38 and my highest speed was 83.08. Taking in to account my best reaction time was .010 and averaged about .10, and the high temp, do my numbers sound about right? Thanks.
You forgot to add that there was a head wind. A 8.5 is a high 12, so a 8.7 is a low 13 at about 106 in the worst air of the year. Your car is normal for a A4 C5. My car was slow as hell and still aint too fast with heads/and cam.
Pro
Joined: Jul 2005
Posts: 639
Likes: 2
From: chattanooga Tennessee
With my old 98 Vert A4 with 315 gears... Only mods were Zo6 Ti Exhaust and a Vera-ram..Intake On run/craps..
1/8 At Brainerd Optimas in Tn... 8.32@85mph with a 1.91 Short time.. If this helps any..
1/8 At Brainerd Optimas in Tn... 8.32@85mph with a 1.91 Short time.. If this helps any..
Le Mans Master
Joined: Jan 2005
Posts: 5,479
Likes: 13
From: Dallas/Grand Prairie Texas
I have the same as you an 02 A4 3.15's, mines a coupe though and bone stock at the time.
My first time at the track was best at 8.7 also. I've heard that's about the same as 13.4-13.5 at the 1/4.
I just installed my vararam and picked up .2 tenths with best at the same track and much hotter conditions at 8.53 best.
I'd say you're dead on the money.
My first time at the track was best at 8.7 also. I've heard that's about the same as 13.4-13.5 at the 1/4.
I just installed my vararam and picked up .2 tenths with best at the same track and much hotter conditions at 8.53 best.
I'd say you're dead on the money.
Thread Starter
Intermediate
Joined: Aug 2005
Posts: 39
Likes: 0
Thanks guys. I was running street pressure on run flats so I had some spinning at launch. I think if I had dropped the pressure and if it weren't 100 degrees I could have knocked my time down just a tad.
Thread Starter
Intermediate
Joined: Aug 2005
Posts: 39
Likes: 0
Well I installed Dynamax LTs, High Flow Cats, X-pipe and replaced my K&N Intake with a Hurricane yesterday. I ran an 8.4 85.04 1/8 lastnight. I didn't know what to expect so I took it easy and launched at 2500. My reaction time was still a bit lower than normal but I still managed those numbers. I think I could hit 8.2 now once I figure out the launch.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Jan 2005
Posts: 5,479
Likes: 13
From: Dallas/Grand Prairie Texas
Originally Posted by MarineVette5
Well I installed Dynamax LTs, High Flow Cats, X-pipe and replaced my K&N Intake with a Hurricane yesterday. I ran an 8.4 85.04 1/8 lastnight. I didn't know what to expect so I took it easy and launched at 2500. My reaction time was still a bit lower than normal but I still managed those numbers. I think I could hit 8.2 now once I figure out the launch.
I'm going to have to get me some exhaust now for mine.
Burning Brakes
Joined: Mar 2002
Posts: 1,176
Likes: 0
From: highland village texas
[QUOTE=MarineVette5]Well I installed Dynamax LTs, High Flow Cats, X-pipe and replaced my K&N Intake with a Hurricane yesterday. I ran an 8.4 85.04 1/8 lastnight. QUOTE]
8.4 X 1.55 = 13.02 (estimated 1/4 et) .... compared to previous 1/8th results of 8.755 X 1.55 = 13.57 ..... you would have shaved .5 seconds off your et for 1/4 at about 107-108mph.
8.2 1/8th would have you running about 12.7 1/4....however you will need a 60ft time around 1.7 to 1.8 (launch) to get the 12.7 number ...
8.4 X 1.55 = 13.02 (estimated 1/4 et) .... compared to previous 1/8th results of 8.755 X 1.55 = 13.57 ..... you would have shaved .5 seconds off your et for 1/4 at about 107-108mph.
8.2 1/8th would have you running about 12.7 1/4....however you will need a 60ft time around 1.7 to 1.8 (launch) to get the 12.7 number ...
Advanced
Joined: Aug 2004
Posts: 95
Likes: 0
From: Greenville S.C.
Thanks for calculations. I've been wondering if i could hit the 12's.
8.29 @ 88 very little spin off line, spinning 2 car lengths 1-2 shift (run-craps), and about 6 bounces off the rev limiter between 2-3rd shift.
While in the middle of adjusting my shift points after the run, A track official said: "Nice car... Too bad you can't run it anymore until you get a rollbar." "Can't break an 8.50 in a vert w/o a rollbar."
8.29 @ 88 very little spin off line, spinning 2 car lengths 1-2 shift (run-craps), and about 6 bounces off the rev limiter between 2-3rd shift.
While in the middle of adjusting my shift points after the run, A track official said: "Nice car... Too bad you can't run it anymore until you get a rollbar." "Can't break an 8.50 in a vert w/o a rollbar."
Racer
Joined: Dec 2003
Posts: 308
Likes: 0
From: Euless TX
Originally Posted by MarineVette5
I have an '02 A4 Convertible and took it to the track here in TX for the first time today. The temp was between 97 and 100 degrees. It is basically stock w/ Borla Stingers, 160 degree thermostat, T/B bypass, K&N with a modified stock box, silicone air bridge and 3.15 gears. My best time was 8.755 @ 82.38 and my highest speed was 83.08. Taking in to account my best reaction time was .010 and averaged about .10, and the high temp, do my numbers sound about right? Thanks.
i ran 8.2 @ 87 mph on a non prepped crappy track back in June. if you didnt go to kennedale then never mind.
'04 Z06 with cat back only. i couldnt get the car to hook up at all but still pulled a 1.9 60 foot on khumo MX tires psi at 15. I think the car is capable of 7.9's. the first time i went i was running 8.4's stock with F1 tires, added corsa cat backs and khumos dropped to 8.2.
Le Mans Master
Joined: Jan 2005
Posts: 5,479
Likes: 13
From: Dallas/Grand Prairie Texas
Remember that 1/8 to 1/4 conversion is just a rough estimate, not an exact guideline.....
Depending on weather temp, humidity and track prep + good launch, you could easily do much better then that conversion will show.
Depending on weather temp, humidity and track prep + good launch, you could easily do much better then that conversion will show.
Last edited by JoshVette; Sep 1, 2005 at 11:43 AM.
Thread Starter
Intermediate
Joined: Aug 2005
Posts: 39
Likes: 0
Originally Posted by blackTexas6
if you went to kennedale on a sunday night your times were bad because they dont do anything to the track, no VHT or anything. On friday and sat night pro mods run and they leave the track in a mess. and clean it up wed or thurs i believe.
i ran 8.2 @ 87 mph on a non prepped crappy track back in June. if you didnt go to kennedale then never mind.
'04 Z06 with cat back only. i couldnt get the car to hook up at all but still pulled a 1.9 60 foot on khumo MX tires psi at 15. I think the car is capable of 7.9's. the first time i went i was running 8.4's stock with F1 tires, added corsa cat backs and khumos dropped to 8.2.
i ran 8.2 @ 87 mph on a non prepped crappy track back in June. if you didnt go to kennedale then never mind.
'04 Z06 with cat back only. i couldnt get the car to hook up at all but still pulled a 1.9 60 foot on khumo MX tires psi at 15. I think the car is capable of 7.9's. the first time i went i was running 8.4's stock with F1 tires, added corsa cat backs and khumos dropped to 8.2.
Yep, Kennendale. Impossible to get a good launch.
Racer
Joined: Dec 2003
Posts: 308
Likes: 0
From: Euless TX
Originally Posted by MarineVette5
Yep, Kennendale. Impossible to get a good launch.
kennecrap trap
i had a drag radial on my streched 6" CBR929, launched at 7k and held on for the life of me and i spun 300+ feet down the track before i hooked up at kennedale. best time was a 6.8, should have been running a 6.5-6.4, i didnt even bother to spray the 60 shot, i would have been all over the place.
Last edited by blackTexas6; Sep 2, 2005 at 07:13 PM.
Pro
Joined: Oct 2004
Posts: 547
Likes: 0
From: Ft. Myers FL
hmm... doesnt sound very off... in an 01 auto targa with just a vararam and stock tires i did 8.49 at 85...i guess the vert takes away from that? that actually equated to a 13.1 at 105.8 with a 1.96 60 ft....
Instructor
Joined: Nov 2004
Posts: 235
Likes: 0
From: Horse Shoe Valey ONTARIO
I have a 2001 rag with 3.15 gears up here in toronto, we just had our rain date for covette nationals. I have patriot heads, comp 224/230 cam. Lt kooks headers and corsa exaust. the car ran consistant 118mph @11.96,117.9@11.98 117.9@11.96 with a 1.76 60ft in street trim with Toyo T1R 295/35r18 tires. They said with a slick i probably could have done 11.50's and with a warmer track, these runs were made atearly evening temps and dew was getting on the track making it fairly slick 300ft out. max
Drifting
Joined: Jan 2004
Posts: 1,661
Likes: 13
From: Knoxville TN
1/8 mile time question
Originally Posted by MarineVette5
I have an '02 A4 Convertible and took it to the track here in TX for the first time today. The temp was between 97 and 100 degrees. It is basically stock w/ Borla Stingers, 160 degree thermostat, T/B bypass, K&N with a modified stock box, silicone air bridge and 3.15 gears. My best time was 8.755 @ 82.38 and my highest speed was 83.08. Taking in to account my best reaction time was .010 and averaged about .10, and the high temp, do my numbers sound about right? Thanks.
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Originally Posted by MarineVette5
Taking in to account my best reaction time was .010 and averaged about .10, and the high temp, do my numbers sound about right? Thanks.
By the way your times seem about right for your mods and the WX.