[Z06] Back to track tonight
Thread Starter
Pro
Joined: Dec 2005
Posts: 688
Likes: 0
From: las Vegas N.V.
Back to track tonight
Going to the drag strip tonight, hoping to better my 12.9 last time out. The weather should be about 65f. Should I drop the air in my rear tires? They are at 30 as are the fronts. Thanks
Thread Starter
Pro
Joined: Dec 2005
Posts: 688
Likes: 0
From: las Vegas N.V.
Yesterday I went to the Las vegas drag strip. My best of 5 runs was 13.04 at 107.9. Two runs were very similar, 1306 and 13.9 both at 107mph. My 60ft times were all about 1.98. The two other runs were 13.2. I have 20 runs with my 03 z. It has a blackwing. I had gotten a 12.91 last time out, with a 1.91 60ft. There was another 03z with cai and drag radials running 12.3's. I know I can improve some. Any thoughts? Thanks Brian
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
60 ' times are quite good. Normally difficult for most to get 60' under 2 seconds.
Would be curious to know more about temp and elevation and trap speed of your car and other Z06.
Where RPM are you shifting?
Powershifting 1st-2nd?
Would be curious to know more about temp and elevation and trap speed of your car and other Z06.
Where RPM are you shifting?
Powershifting 1st-2nd?
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
Figures Density Altitude and corrects ET and Trap Speed for sea level
Temp(*F):
Humidity(%):
Track Alt.(ft.):
Pressure(in.):
ET:
Trap Speed(mph):
Based on:
Temp: 78°
Humidity: 17%
Track Altitude: -280 feet
Pressure: 29.6 in.
Density Altitude = 1317 feet ET MPH
Uncorrected 13.04 @ 107.9
Corrected 12.85 @ 109.43
Found your et and MPH. MPH is down. I would expect the car to MPH better. I guessed at the above info for LV area last night. I would think car should be closer to 12.5 and maybe 112 mph.
MPH is typically a matter of HP and ET is usually a matter of driver skill/technique.
JMHO. Hope it helps.
Temp(*F):
Humidity(%):
Track Alt.(ft.):
Pressure(in.):
ET:
Trap Speed(mph):
Based on:
Temp: 78°
Humidity: 17%
Track Altitude: -280 feet
Pressure: 29.6 in.
Density Altitude = 1317 feet ET MPH
Uncorrected 13.04 @ 107.9
Corrected 12.85 @ 109.43
Found your et and MPH. MPH is down. I would expect the car to MPH better. I guessed at the above info for LV area last night. I would think car should be closer to 12.5 and maybe 112 mph.
MPH is typically a matter of HP and ET is usually a matter of driver skill/technique.
JMHO. Hope it helps.
Instructor
Joined: Oct 2006
Posts: 150
Likes: 0
Originally Posted by Chalky
.
http://forums.corvetteforum.com/show....php?t=1542531
http://forums.corvetteforum.com/show....php?t=1157557
http://forums.corvetteforum.com/show....php?t=1130748
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
Advanced
Joined: Jan 2006
Posts: 95
Likes: 0
From: Corpus Christi TX
Originally Posted by Chalky
From what I can figure out from the thread, the car is not my friends. Doesn't own a boat or a condo.
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
The wheels make me wonder. Joe "Gramps" did have the original wheel lips polished by Panther. It could be Gramps's car though. Gramps sold it to a dealer in SW IL. Lost track of it after that!!
Intermediate
Joined: Mar 2006
Posts: 27
Likes: 0
From: Oak Brook, IL
Originally Posted by Chalky
The wheels make me wonder. Joe "Gramps" did have the original wheel lips polished by Panther. It could be Gramps's car though. Gramps sold it to a dealer in SW IL. Lost track of it after that!!
Originally Posted by Z-THREAT
...this car came from the Illinois area.
John
John
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
Originally Posted by Zosixin
The Las Vegas track is at 3500 ft elevation. the temp was about 75f.
Try this site for corrected et/mph. I was using the wrong elevation. Using 3500 elevation, 75 temp, hum 17% and barometer of 29.6, it corrects to a strong 12.03. You really need to know temp, altitude, barometer, humidity at time of runs to use the calc link.
Figures Density Altitude and corrects ET and Trap Speed for sea level
Temp(*F):
Humidity(%):
Track Alt.(ft.):
Pressure(in.):
ET:
Trap Speed(mph):
Based on:
Temp: 75°
Humidity: 17%
Track Altitude: 3500 feet
Pressure: 29.6 in.
Density Altitude = 5750 feet ET MPH
Uncorrected 13.04 @ 107
Corrected 12.03 @ 115.28
Hope this helps.
Le Mans Master
Joined: Nov 2005
Posts: 7,059
Likes: 366
From: Kendall Park NJ
Originally Posted by Zosixin
I looked up the Las Vegas track, it is 2200 ft elevation. Thought it was higher. Using the formula it corrects to 12.44 at 112.
Good luck.
Thread Starter
Pro
Joined: Dec 2005
Posts: 688
Likes: 0
From: las Vegas N.V.
Thanks everyone. I am going to take off my motorsport wheels and put the stockers back the next time out. It will be interesting to see if they make a big deference. The ones I have are about 8lbs heavier. I think that is what is hurting my trap speeds.