Fore58

I have witnessed on several occasions where there is a fully prepped track for probably the first 60ft. A friend of mine has a base model C8 with all season Michilens. He pulled a 1.59 60 ft time on those same tires. Other runs the 60 ft time just dissipated as the track surface became slippery. Then on the same track same night another C8 with drag radials pulled low 1.6s. as his 60ft time remained the same. Having said that the OP was running those drag radials for consistency. It's just not fun running at the track and just spinning all the time.....you might as well give up. Having a drag pack is a totally different ball game. Some of the members that drag race for fun or competition are familiar with this. At the drag strip, people could care less rather you have a drag radial or stock tire.....you run what you bring.

94Lt1Vette

134 mph is booking it. ZR1 territory with 100 less hp at the wheels. Amazing.

Racer X

305 is the section width, typically tis at the widest point, the sidewall.

Ragtop 99

^^^ Did I miss it? I didn't see timeslips and I couldn't read the signboard.

Fore58

10.8@124 ......comment from the original YouTube.

-ZEEOHSIX-

Weird, I could have sworn I replied to this thread yesterday. What was the temp and DA at the track that day?

Aozora

One could argue track glue makes non sticky tires ..stickier.

The more you know.

Ragtop 99

Thanks. MPH is a bit disappointing.

-ZEEOHSIX-

Ah cool. I can't hear the videos at work.

PRE-Z06

11” tread width is from the manufacturer, that’s the contact patch and what matters more than the number on the side of the tire imho.
Heavier convertible, higher DA and a head wind don’t help.

Ragtop 99

no doubt. But even 126 MPH would be down about 5 MPH, which is a pretty big hit when you 're not running at higher altitudes.

PRE-Z06

If 131 is stock in 0’ DA, Car and Driver tested a convertible and it was 2mph slower. Then given it was 2000’ DA knock off another 2mph and take off another 3mph for a headwind, it adds up to me that it only went 124.

SharkDiverZ06

Conversely, MotorTrend tested a non Z07 vert and it did a 10.6 at 131.6. Results are all over the place, in large part due to the multiple launch control settings available in the Z which requires more experience to be able to dial it in properly for varying conditions.

Ragtop 99

Is 0 DA what GM uses to quote figures? Same for C&D? I didn't think they used that low a DA figure.

I found it helpful to see what others were running the same day when I was at the track. Benchmark yourself and it gave a good feel for how slow or fast the track was that day. Too bad they didn't have a stingray there. If it was trapping 115 - 116, then I'd know order had been restored to the universe.

PRE-Z06

I thought manufacturers and magazines were correcting actual times to that now?

PRE-Z06

I personally don’t put much faith in the mag times now that they correct them and don’t share the amount of correction. I find it hard to believe their Z07 coupe with CCB, CF wheels, 2Rs and lighter overall weight was slower time wise than the base Convertible. I get that the Z07 has more drag so mph is lower, but they couldn’t launch it as well? It has launch control, if they adjusted one for optimum results why couldn’t they do the same to the other?

m103114

Thanks! I varied the settings, it all depends on track prep. The 5k 5% slip worked on only 1 run, the other runs I tried it it spun

Spartan117

Wow, didn't know you're here Jesse! Can't wait to see more! Are you planning to do the quarter mile in stock 4S tires? Also, can you do some Dragy testing please? Pretty please?

m103114

haha yes I've been on this forum for years, just in the shadows....as far as 4S tire testing, yes at some point I'll try it, only thing is those tires are no bueno on a drag strip. I don't see them being quicker than 10.6-10.8 at best. I've never been a fan of using street tires at a drag strip because that's not a comparison to what the car can do on the street. The only way to know what the factory tire can do on the street, is to test on the street..and I'm not going to jail lol

JG853

@m103114 Have you weighed your car yet (With a full tank of gas - Known amount of fuel)?