Cito,

I don't have the software to view those files. What were the highest sustained g's for STX WRX as well as your BS RX-8 on that concrete site?

 

You can download the chart software free from their website.

The numbers for sustained are in the 1.10 to 1.14 for both cars. What you do see in the graph is that the numbers seem smoother for the Hoosiers.

 

MaxQData website

http://www.maxqdata.com/downloads.htm

 

Thanks. On a concrete surface your sustained lateral g's on Hoosiers should be much higher (1.3g range).

FWIW, on 122 run V710's on smooth Fedex stadium asphalt, Shawn and I saw sustained lateral g's in the 1.09 range at our last local event.

 

I have been unhappy with the Hoosiers that I am running. They are 245's, and they were fresh (18 runs) when these numbers were obtained.

Numbers with fresh V710's on another RX8 were higher for peak readings being in the 1.28 range at times.

I have never seen readings higher than 1.2 for sustained sweepers. The reason for this certainly could be driver related. Who knows?

 

Data from two different cars, with two different drivers, on two different tires... That is like saying the earth is flat, a few people might buy it.

 

They are what they are...I already disclosed the problems with the data--albeit somewhat tardily.

Do a test for Sportscar already.

 

Just need them to send a set over... But I think next time we will use an ST class car. Might be fun to put sticky tires on Jung's STU car, and see how far off of Berry's Evo it is.

But it would be well into next year before we have time. Just finished one tire test, and still have a head to head car test to do. Plus we have another Club Racing car ready to be built for 2009.

 

Gigo ...

 

So no one knows the motion ratio's?
I guess if we go on strike next week I'll have the time to measure them, just need to find some were to do it.

I really hope both rule changes go through, I'm getting pretty excited about doing this.

 

the motion ratios have been posted before, the issue is nobody knows how to search ...

https://www.rx8club.com/showpost.php...1&postcount=42

 

Thank you.

I guess I must just suck at searching because I did try.
I just figured out why the search wasn't working for me. I kept trying "motion ratio", should have tried "motion ratios"

 

a few?
http://www.theflatearthsociety.org/forum/

 

I just got done reading the October fasttrack and if I'm reading it correctly it looks like the RX-8 got removed from the STX exclusion list and also 2wd vehicles get max wheel width of 9" and max tire width of 265. I'm going to run STX for sure now. There's also some interesting changes in other classes.

 

FWIW I just heard that not everything included in this months Fasttrack was approved so don't go buying anything just yet. Guess moving the Acura Integra Type-R to BS might be of interest here.

 

Nah, that proposal is just to sink the ITR. It can't compete with BS.

 

Wouldn't the ITR be better off in GS?

 

They're trying to kill it, not make it more competitive.

 

Odd, I thought DS had the softer PAX...

 

I gotta disagree with you there, well partially. I sold my STU Evo to come to the dark side of stock class because I thought it would be cheaper. The fact of the matter is that one set of ST tires would last me all year in 3 clubs, Topeka and a few other misc. events (Yes, my GF prays for the offseason). To run the same in stock class, it cost me 3 sets of tires that cost almost twice as much. By my math, all my the go fast parts for a ST car would be paid for in a year, just in tire savings. Plus, you can sell the parts when you are done with the car and get half that money back. Plus, you can drive the car to the event on the tires you plan on compete on.

I just don't know if the RX8 would be competitive enough in STX. I think that the 8 would be a handful on street tires. I would like to see it, though. If it could be competitive, I would consider it.

Slower, yes no doubt there but the index is soft.

 

The competitive guys I know in ST, included the two time STU ProSolo champ, use as many tires as I do. I drive to the local events on my competition tires, this includes all local events as well as our tour/pro (60+ miles each way for me), as does he. However, when we both go out of town neither of us travel on our competition tires - what fast ST guys have extra wheels and tires or even trailer their cars, yes they do.

I used up two sets of tires in 2008, and have two more sets from Topeka each with about 12 runs on them - these will get me well into 2009.

My car is comfortable, smog legal in CA (unlike the ST guys) and is driven every day. I spent about $3k to set it up in 2005, and expect I could get a 50% return on my parts.

No way you can build and run a competitive ST car for the same money as a stock class car. You want to build a backpacker with ebay parts, I'm sure you will be successful at saving some money, but little else.

The harsh reality is you will spend more money and you will be going slower. STU is still not running BS times, STX is only further off.

 

I'm running in STU this year, and I'll be in STX next year. No, I'm not a 'national level' competitor, though if work allows me to at some point I really want to make it out to more national events and the championship.

Yes, the RX-8 is a handful on street tires, but once I stiffened mine up a lot and worked out the balance, roughly, it became a hell of a lot of fun. Faster than BS? No, but still fun. I have a lot of work to do yet, but I'm enjoying that work.

Anyway, the only point I really wanted to make is that you're in IL and we have an event in Rantoul next weekend. Come on down! :D

 

Some of us don't have tire contracts. ;-)

Hear hear. Exactly what he said.

See this for details

 

Neither do I.

And I have been driving on Rs for over 10 years, long before I was ever given or won any tires. They are street legal, and I have never seen any signs of deterioration from driving to/from events on them, no reason not to do it for local stuff. Driving back and forth from the SD tour each day, 68 miles each way, was not even enough to take the rubber buildup off the tires. People make a big deal out of nothing when it comes to the fear of driving on competition tires.

 

Eh? I thought you had a Kumho contract.

Haha. Cool to know, I've definitely driven a good distance on comp tires before and didn't notice any deterioration either. However, up here in the PNW, it rains a lot. Also, I DD'd my car. ;-)