My quest for 11.7's on street rubber cited in my original post is over. On my last pass of the day from my most recent visit to the drag strip I managed
11.7929 at 121.68 MPH with a 1.9710 60 ft.
My euphoria was slightly diminished when I found that "
mlee" had bettered my time in his A10 by 1/10 sec. I would have been content to wait for my new 18x12 wheels and DR's but they're still weeks away from delivery. Although I really don't want to wear out another pair of street tires, I'm tempted to see if I can improve on this time. After analyzing the videos and reviewing my notes, I'm sure that a little more practice and a little luck with weather and track conditions could make 11.6 or better a reality. This weekend was too hot, humid, and rife with rain chances. Next one looks better, though...
As is my custom, I've included all my time slips, videos, notes, and analysis below for those who crave details. This time the GoPro was helmet mounted inside the vehicle so you can see and hear what I'm doing. I only remembered to start the PDR for the 6th and 8th passes. I was getting a bit distracted, contributing to some bonehead rookie mistakes on a few passes (like shifting from 2nd to 5th once).
If you want to skip the details you can just view all the videos (Spectator, GoPro, and PDR) together in the order of each pass, or skip around, in this YouTube playlist:
20170409 Coastal Plains Dragway
Comments are welcome.
Enjoy! 
--Cal
Time Slip Data:
(My 6th Gen ZL1 was #35)
Code:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#683 14:20:35 0.1369 2.0920 11.9711 121.89 none
#692 14:28:05 0.3870 1.9570 12.0200 118.42 Grand Cherokee 0.5388 1.7052 12.0082 112.16
#699 14:33:50 0.3140 2.1169 11.8991 123.62 Dodge Datona 0.1229 1.8790 12.1611 119.08
#707 14:42:22 0.7319 2.1280 12.5639 115.11 Mustang GT 0.6501 1.7338 11.3510 128.55
#714 14:49:15 0.0350 2.1400 12.2939 120.98 Red Car 0.4291 2.4188 15.3948 91.65
#746 15:43:15 0.2608 2.2970 12.5801 118.76 none
#755 15:51:25 0.3398 2.0720 12.0491 120.94 none
#763 15:56:38 0.2180 1.9710 11.7929 121.68 none
Lessons Learned:
1. When talking to myself in the car, speak only about what I'm GOING to do, not what happened last or who/what is in the other lane. It's kind of like road racing... look ahead, focusing where you want to be and what you want to do; not on what you're worried about or what you've done wrong.
Given the "go" signal from the queue, think:
Window up
PDR Start
Line-lock burnout (only 1st run of hot-lapping)
Hold SC 5-sec (only 1st run of hot-lapping)
-or-
rolling burnout
Stage 1 lt - wait for other lane
Stage 2 lt
5000 RPM
one thousand one, one thou - GO
(....yel.....yel......yel..........grn)
feather clutch
WOT
Shift @ 6500-6600 RPM (shift lights turn red)
2. Determine the best lane for my car:
- Take some time on arrival to watch passes in both lanes
- Make first 2 passes in different lanes to confirm which hooks better
3. Keep focused on the task at hand by reciting mantra:
- window up, PDR On, heat tires, SC off, stage 1, wait, stage 2, 5500 RPM, count-down: one-thousand-one one thou, feather clutch, shift @ 6500-6600 RPM (shift-lights red)
4. Ride brakes on return road when hot-lapping.
5. Rolling burnout after tires warmed.
6. If track is slippery on little end, short shifting 2nd gear might keep me from spinning wheels.
Time Slips 1-4
Time Slips 5-8
[Videos]
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20170409 Pass 1 of 8 - 2017 Camaro ZL1 Solo
20170409 Coastal Plains Dragway
Weather: Sunny, 73F, clear sky, wind NW 9, 43% humidity
Code:
Time Slip:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#683 14:20:35 0.1369 2.0920 11.9711 121.89 none
Notes:
1. Good line-lock burnout to heat tires.
2. Forgot to start PDR.
3. Had to ask for reset at the tree. Missed green waiting for someone to pull into left lane. A Corvette was lined up next to me in the queue but apparently didn't want to run next to me.
4. This run felt pretty good, even though I was spinning a the start.
Spectator Video
* No engine sounds *
YouTube made me remove audio track due to (barely discernible) copyrighted music playing in background.
GoPro Video
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20170409 Pass 2 of 8 - 2017 Camaro ZL1 vs Grand Cherokee
20170409 Coastal Plains Dragway
Weather: Sunny, 73F, clear sky, wind NW 9, 43% humidity
Code:
Time Slip:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#692 14:28:05 0.3870 1.9570 12.0200 118.42 Grand Cherokee 0.5388 1.7052 12.0082 112.16
Notes:
1. Only rolling burnout to spin off water
2. Forgot to start PDR again.
3. Missed 3rd gear. Distracted trying to get video coverage on helmet mounted GoPro.
4. Rode brakes on return road to keep wheels hot for next run (hot lap).
Spectator Video
GoPro Video
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20170409 Pass 3 of 8 - 2017 Camaro ZL1 vs Dodge Datona
20170409 Coastal Plains Dragway
Weather: Sunny, 73F, clear sky, wind NW 9, 43% humidity
Code:
Time Slip:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#699 14:33:50 0.3140 2.1169 11.8991 123.62 Dodge Datona 0.1229 1.8790 12.1611 119.08
Notes:
1. Forgot to start PDR again - too busy...
2. Good run. Wheel slip on launch. Shifted to early into 2nd and 3rd.
3. Didn't wait for stage 1 lt in left lane
4. Rode brakes on return road to keep wheels hot for next run (hot lap).
Spectator Video
GoPro Video
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20170409 Pass 4 of 8 - 2017 Camaro ZL1 vs Mustang GT
20170409 Coastal Plains Dragway
Weather: Sunny, 73F, clear sky, wind NW 9, 43% humidity
Code:
Time Slip:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#707 14:42:22 0.7319 2.1280 12.5639 115.11 Mustang GT 0.6501 1.7338 11.3510 128.55
Notes:
1. Didn't wait for stage 1 lt in left lane
2. Lots of wheel spin on launch
3. Missed 3rd - shifted into 5th. Probably distracted by helmet-mounted GoPro again, not to mention that noisy Mustang GT.
4. Rode brakes on return road to keep wheels hot for next run (hot lap).
5. Owner of the green GT told me on a previous visit that he was going to be installing some power-adder mods. He was in low 12's at the time. Looks like his mods did the trick. He beat me cleanly on this run. I'll probably have to wait 'til I get my new rims & DR's to beat his time.
Spectator Video
GoPro Video
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20170409 Pass 5 of 8 - 2017 Camaro ZL1 vs Red Car
20170409 Coastal Plains Dragway
Weather: Sunny, 73F, clear sky, wind NW 9, 43% humidity
Code:
Time Slip:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#714 14:49:15 0.0350 2.1400 12.2939 120.98 Red Car 0.4291 2.4188 15.3948 91.65
Notes:
1. Best R/T of the day. Released clutch 1/8 sec after 3rd yellow. (counting "one thousand one, one thou - GO)
2. Still either bogging or slipping at launch.
3. Rode brakes on return road to keep wheels hot for next run (hot lap).
4. Need to focus on timing the tree and feathering the clutch...
Spectator Video
GoPro Video
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**** One Hour Cool Down Here ****
##!! A motorcycle crashed during the break, leaving an oil spill, so right lane was closed for the duration. The driver was unhurt, thanks to his leathers.
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20170409 Pass 6 of 8 - 2017 Camaro ZL1 Solo
20170409 Coastal Plains Dragway
Weather: Sunny, 73F, clear sky, wind NW 9, 43% humidity
Code:
Time Slip:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#746 15:43:15 0.2608 2.2970 12.5801 118.76 none
Notes:
1. After 1 hr cool down, got a good line-lock burnout to heat tires. Might have been too long...
2. Right lane closed due to oil spill after motorcycle wipeout.
3. Left lane stickier on launch but has a bad slick spot where I shift to 2nd - lots of wheel spin.
4. Rode brakes on return road to keep wheels hot for next run (hot lap).
5. Remember to study condition of both lanes before lining up. Then try one pass in each lane to find best for my car.
Spectator Video
GoPro Video
PDR Video
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20170409 Pass 7 of 8 - 2017 Camaro ZL1 Solo
20170409 Coastal Plains Dragway
Weather: Sunny, 73F, clear sky, wind NW 9, 43% humidity
Code:
Time Slip:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#755 15:51:25 0.3398 2.0720 12.0491 120.94 none
Notes:
1. No line lock - just rolling burnout to spin off water.
2. This lane feels faster!
3. Hooked pretty good on launch but wheel spin from about 30 ft, through 1st gear.
4. Had to pedal it on shift to 2nd - spinning wildly.
5. Rode brakes on return road to keep wheels hot for next run (hot lap).
Spectator Video
GoPro Video
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20170409 Pass 8 of 8 - 2017 Camaro ZL1 Solo
20170409 Coastal Plains Dragway
Weather: Sunny, 73F, clear sky, wind NW 9, 43% humidity
Code:
Time Slip:
2017 6th Gen Camaro ZL1 Opposing Lane
Seq Time R/T 60 ft ET MPH Opposing Car R/T 60 ft ET MPH
#763 15:56:38 0.2180 1.9710 11.7929 121.68 none
##!! Personal record 11.7 ET
Notes:
1. Just rolling burnout to spin off water.
2. Hooked good on launch - could have rev'd higher. Need higher RPM to improve 60 ft.
3. Still got some wheel spin on shift to 2nd but powered through this time.
Spectator Video
GoPro Video
PDR Video
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