11.52 @ 120.2: New Best for Z06 with Just CAI and DRs
In 2003 I got just five passes at the drags.
This year I got about 50. It took all of them to get my driving back in decent shape.
Magic ETs seem to happen when a strong launch is had (the right launch rpm and clutch release) and it is then combined with near-perfect shifts just before the limiter. And as anyone who's drag raced a Z06 knows, it's hard to get both parts of the race "just right."
Tonight on my first pass at Capitol Raceway in Crofton, Maryland I came close. A 1.64 60' and a 9.88 for the 60'-1320' segment. 11.52 @ 120.21. I believe this is the fastest pass I've seen on the forums I follow. If it isn't, I sure someone will point me to a thread I've missed.
Launch rpm was 4600. Clutch release was fast. Got some spin on the 1-2 shift and a little less on the 2-3 shift.
DA at the time of the run was negative 1200 feet. Air temp was 45 degrees (on my TAG) and the track surface temp was 43 degree measured by my infrared laser temperature probe. That was right on the edge of being too cold.
A second and third pass showed that the track surface had gottem too cold (38 degree) to hook well, so I packed it in for the night.
I think the car can run 11.4X when the traction is a little better and in a low positive number density altitude. That assumes a near perfect run.
For the record...the car is an 02 Z06 with 24,500 miles. All stock EXCEPT a Halltech Tric cold-air intake and drag radials. No other changes. No tuning. No other aftermarket parts. Stock shifter. Stock front tires. CAGS still in operation. And this pass, like all of mine, was made in COMPETITIVE DRIVING mode. Car now has about 200 passes. No maintenace issues with the engine, tranny, or rear. The clutch was replaced under warranty after about 125 passes.
Back to the track on Sunday. Hoping for warmer weather and better traction. Best regards to all.
Ranger
Edit: brought to the top from a later post on this thread....
Lot of fun at Atco today (November 29th). A group of the Vette faithful in fast cars. Good company, good air (negative 950-1100 feet all day), and two open lanes, well prepped but suffering a bit from cold surface temperatures (never higher than 51 degrees).
My four best passes were:
11.53 @ 119.7 on a 1.65 60'
11.55 @ 119.9 on a 1.66 60'
11.57 @ 121.3 on a 1.66 60'
11.58 @ 120.3 on a 1.68 60'
__________________ '06 Z06 red 300 passes
Bone Stock Stock Tires……11.02 127.25 1.70 video
Bone Stock DRs......….…….10.71 130.32 1.60 video '02 Z06 350 passes
Bone Stock Stock Tires……11.81 117.26 1.78
w/ CAI & DRs………...........11.52 120.21 1.64 video My PRsBurnoutLaunchShiftingClutch Care
My neck of the woods. I can hear Capitol when the nitro guys are running. Nice - I mean VERY nice driving. Please PM or EM me when you are going to run again. I'll bring my '03 TR ZO6 and cheer you on. Can't wait for spring and higher track temps to bring out my car. Would love to meet up and shoot the sh&*t over coffee.