I have proven much closer at a few big events during fun runs. Usually around 1 second. Limitations must be something other than the tires...

-Marc

 

In this circumstance you may not by typical or average!

You are referring to the R-tire vs S-tire comment... I would agree. What car did they use and what was it's prep? Did they use the same width tires race vs street?

I would think that a stock vs STR prepped S2000 would make a difference on the resulting delta time.

I would guess...

STR prep with R-tire vs S-tire (smaller delta?)

Stock prep with R-tire vs S-tire (bigger delta?)

 

Yeah, that puts it into perspective better. I thought the test car was an S2000, but after thinking about it, an R-compound can cover up more setup flaws than a street tire. The example in my head is with a completely stock S2000. The stock alignment and instability in the rear would be masked by the A6s and further separate the two tires in test results.

The best example I have was at Blytheville last year. For fun runs, I put the RS3s our B-Stock car and ran within 1 second of my fastest B-Stock time, same car, same setup, same settings. Maybe in this example, the B-Stock prep allowed me to push the RS3s harder or evened the playing field between the two tires? Who knows...

-Marc

 

Yeah, that puts it into perspective better. I thought the test car was an S2000, but after thinking about it, an R-compound can cover up more setup flaws than a street tire. The example in my head is with a completely stock S2000. The stock alignment and instability in the rear would be masked by the A6s and further separate the two tires in test results.

The best example I have was at Blytheville last year. For fun runs, I put the RS3s our B-Stock car and ran within 1 second of my fastest B-Stock time, same car, same setup, same settings. Maybe in this example, the B-Stock prep allowed me to push the RS3s harder or evened the playing field between the two tires? Who knows...

-Marc
[/quote]

Also if you did the street tires second, I wonder if you had gotten better at the course and would have also improved on your r comp time if you had switched back for another set of fun runs. Definitely an interesting data point though

 

Also course would play a big role. Have to figure that the more long steady sweepers the greater the advantage to the Hoosiers.

 

^^^ I so agree with this.

 

Yeah, that puts it into perspective better. I thought the test car was an S2000, but after thinking about it, an R-compound can cover up more setup flaws than a street tire. The example in my head is with a completely stock S2000. The stock alignment and instability in the rear would be masked by the A6s and further separate the two tires in test results.

The best example I have was at Blytheville last year. For fun runs, I put the RS3s our B-Stock car and ran within 1 second of my fastest B-Stock time, same car, same setup, same settings. Maybe in this example, the B-Stock prep allowed me to push the RS3s harder or evened the playing field between the two tires? Who knows...

-Marc
[/quote]

Also if you did the street tires second, I wonder if you had gotten better at the course and would have also improved on your r comp time if you had switched back for another set of fun runs. Definitely an interesting data point though
[/quote]

This was on the first and only run, there were some mistakes as I wasn't used to the difference in grip. I jumped in other cars for the rest of my runs. I have done this a few time at different sites with similar results. This course was a high speed 60 second course (fall Blytheville event) with many switch back style elements going out and various long speed maint inset elements coming back. There was one giant turn around that held approx 50mph. I find the Blytheville courses are pretty balanced and neutral courses for pax and comparisons compared to most others. This is in no way intended to be the standard, just an example of drastically different results than the mentioned article.

-Marc

 

Thanks Josh for David's info - that diff should arrive way out west here next week

 

Awesome! David is a great guy and has helped me out several times.

 

Who gives a rats dong how many seconds faster the Hoosiers are compared to the Hankooks? Some times, STR is close to BS. Sometimes it's far away. It's usually course dependant. By the way, my data which is as strong as Marc's says that on the Blytheville tour course this year, a Hankook is 1.2 seconds faster than a Dunlop!