Headed to the dragstrip
Thread Starter
Race Director
Joined: Aug 2002
Posts: 18,254
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From: Deep in the Heart o' Texas
St. Jude Donor '09-'10-'11-'12-'13
Headed to the dragstrip
Headed to San Antonio Raceway this evening to run my 04 A4 Coupe. I'm getting ready to install my 3.42's in about three weeks so I want to make some runs with the 2.73's to set a baseline ET. The weather is clear and cool here in San Antonio today so the car ought to run well. I'm hoping for something between 13 flat and 13.50's. Will post an update tomorrow with 60 foot times, ET's and trap speeds. Wish me luck.
Tracy
Tracy
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Race Director
Joined: Aug 2002
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From: Deep in the Heart o' Texas
St. Jude Donor '09-'10-'11-'12-'13
Best pass was a 13.37 @ 105.34 mph. Worst time was 13.77 @ 103.9 mph. 60 ft times dropped off which indicates a possible traction problem. I'm running Kumho runflats. Temps dropped from the time we got to the track so I'm going to assume traction was the culprit. I believe this to be true since they hadn't sprayed the burnout area with water early on and did on the subsequent passes. Water and runflats don't make for a decent combination. Overall though, I'm good with the results because they're indicative of what the car should run with the gears it has. The 3.42's and the tune will probably drop a half second off the ET. Stay tuned. Excuse the pun. 
Burning Brakes
Joined: Jun 2007
Posts: 1,043
Likes: 3
From: Roselle IL
Best pass was a 13.37 @ 105.34 mph. Worst time was 13.77 @ 103.9 mph. 60 ft times dropped off which indicates a possible traction problem. I'm running Kumho runflats. Temps dropped from the time we got to the track so I'm going to assume traction was the culprit. I believe this to be true since they hadn't sprayed the burnout area with water early on and did on the subsequent passes. Water and runflats don't make for a decent combination. Overall though, I'm good with the results because they're indicative of what the car should run with the gears it has. The 3.42's and the tune will probably drop a half second off the ET. Stay tuned. Excuse the pun.
Keep us posted
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
stock with my 3.15's was always 13.3x.
The launches sucked; could never get below 2.0 60' times. And that's the key to get into the 12's... 60' times below 2.0.
After my 3.42 upgrade and Predator tweaks... I actually made it into the 12's with a fluke 12.9x run; 60' was 1.9x. But other than that one fluke run, all others had been 13.0x
After my TC upgrade; all runs are now in the 12's and 60' times have reached into the 1.8x range. All this still running factory run-flats.
The launches sucked; could never get below 2.0 60' times. And that's the key to get into the 12's... 60' times below 2.0.
After my 3.42 upgrade and Predator tweaks... I actually made it into the 12's with a fluke 12.9x run; 60' was 1.9x. But other than that one fluke run, all others had been 13.0x
After my TC upgrade; all runs are now in the 12's and 60' times have reached into the 1.8x range. All this still running factory run-flats.
Last edited by Mike Mercury; Mar 20, 2008 at 04:01 PM.
Thread Starter
Race Director
Joined: Aug 2002
Posts: 18,254
Likes: 1
From: Deep in the Heart o' Texas
St. Jude Donor '09-'10-'11-'12-'13
stock with my 3.15's was always 13.3x.
The launches sucked; could never get below 2.0 60' times. And that's the key to get into the 12's... 60' times below 2.0.
After my 3.42 upgrade and Predator tweaks... I actually made it into the 12's with a fluke 12.9x run; 60' was 1.92. But most were 13.0x
After my TC upgrade; all runs are now in the 12's and 60' times have reached into the 1.8x range. All this still running factory run-flats.
The launches sucked; could never get below 2.0 60' times. And that's the key to get into the 12's... 60' times below 2.0.
After my 3.42 upgrade and Predator tweaks... I actually made it into the 12's with a fluke 12.9x run; 60' was 1.92. But most were 13.0x
After my TC upgrade; all runs are now in the 12's and 60' times have reached into the 1.8x range. All this still running factory run-flats.
What's up? Question for you. What was your launch technique with stock gears and TC? Did you run the RPM's up or did you just nail it from idle? And if you don't mind me asking, which converter are you using now?
Tracy
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Good luck and be safe. Hope you hit those ETs.
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From: S.W. Ohio. . . . . . NRA Life Member
With the new converter, I can now hold at 1900. Makes a difference in the 60' times
here's my mild "cheap bastich" converter upgrade:
http://forums.corvetteforum.com/show....php?t=1715694
Thread Starter
Race Director
Joined: Aug 2002
Posts: 18,254
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From: Deep in the Heart o' Texas
St. Jude Donor '09-'10-'11-'12-'13
powerbreaking. The highest RPM I could hold was 1300-1400 with the stock converter.
With the new converter, I can now hold at 1900. Makes a difference in the 60' times
here's my mild "cheap bastich" converter upgrade:
http://forums.corvetteforum.com/show....php?t=1715694
With the new converter, I can now hold at 1900. Makes a difference in the 60' times
here's my mild "cheap bastich" converter upgrade:
http://forums.corvetteforum.com/show....php?t=1715694
Man Tim, you just made me spend more money.
Called next door to our Chevy parts department and got this converter coming. Now I just have to have enough restraint not to call American Racing and order headers and an X-pipe. 
Melting Slicks
Joined: Jan 2007
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From: Oilerville Edmonton
St. Jude Donor '08
hope the install goes well!
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
Thread Starter
Race Director
Joined: Aug 2002
Posts: 18,254
Likes: 1
From: Deep in the Heart o' Texas
St. Jude Donor '09-'10-'11-'12-'13
Just don't suggest that I buy a Harley then poopoo will hit the air oscillator on high speed. 
Life Time NCM #2196
Joined: Sep 2004
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From: Converse TX
