Street Tire class for FD?
 

Is there such a beast? Allowed in STS2?

Currently I'm running my FD in ASP (because I have a downpipe installed) on street tires. (Goodyear Eagle F1 GS-D3s, stock wheel).

It would appear that without race rubber ($$ for a beginner), I'm going to be pretty far behind in both ASP or SS (if I put in a stock downpipe).

Dave

There is no national street tire class the FD will fit into. Some local clubs run a street tire class that encompasses every car class and is then PAX'd. Here in DFW we have a street tire class and a novice class. Race tires are not allowed in either and winners are determined by PAX time.

That's kinda what I suspected based on my SCCA reading.

I would really like to know what the PAX conversion is for a street tire class FD running SS or ASP trim. 0.854 is more than optimistic on street tires and stock engine power, so I am curious how my PAX results might look.

Dave

They'll suck if you compare them to other cars on race tires ;) Locally the street tire class is one single class that all the street tire shod cars from all the classes are dumped into. There is no seperate PAX for street tires, the SCCA class index is used to determine the winner.

For instance our local club uses the prefix "T" to denote the street tire class. Cars in that class might be TSS, TES, TCSP, TSM2 etc. The SS, ES, CSP and SM2 PAX numbers are then applied to those cars raw times to determine finishing position within the street tire class.

LOL, ok I guess I can live with being in a class all my own. Our region just does STS and STS2.

Dave

Is the 93-95 RX-7 even legal for STS2? I would think the wheel width and torsen LSD would bump us out. All the FD's at my local autocrosses run in ASP, SS, or SM2.

-s-

The FD is not legal for any ST class. The only class that it would fit in is STS2, due to it's lack of a back seat, and that class is limited to less than 1900cc normally aspirated only.

They will probably make an STX2 and STU2 class in a few years(I have to believe this will happen with the popularity of the other ST classes). In that event the FD would probably be legal for STX2 but will be put on the exclusion list and go straight to STU2. I am keeping most of my emissions equipment so if that happens it will be an easy switch from ASP to STU2.

One would think and hope that does happen. However, what I'm seeing in STU is all too true. My RX8 would require street tires that are at least $30 more per tire than the V710 r-compounds. Makes r-compounds that much more worth it.. and they last as long if not longer.

What it does take away from is those that just want to arrive and drive. However, the national rules aren't for local competitors... its a national ruleset/classing.

That said... how about approaching your region to get something like a Super Street Tire class going? Local regions have the right to create classing as they see if if they feel there's a need. I say go for it. The more regions with these classes, the greater the chance of getting them up and running nationally.

ST was just like that. A whole bunch of regions ran street tired cars with limited modifications as classes. :)

--kC

I use to complain about this alot. Then i seriously started to run the car in stock class street tire. The car is a blast to drive and frankly, despite the fact tha my driving is so-so. The car turns times that are sometimes faster that street touring. This car would be an overdog in any existing street touring class. Too bad they still have a .84 pax for me.

I think a good driver can get alot out of this car.