SCCA Solo D Street discussion
 

Someone had to start it. :lol:

Have fun boys and girls. Shouldn't be any reason why one of you can't bring a jacket home next year.

When I have a free moment I'll try to compile all the good tidbits from the CS thread into this post so people have a single place to look.

LMAO!

had to go to the other thread to see what this is about. This is awesome. We really should not have been competing with STI's.


EDIT:

I'm not good with autox rules and classification. Will this effect us in terms of going into STX when we start adding basic mods? Will we get a different class there, as well?

Not likely. Where would it go? My car raw timed STR last weekend (though not me driving...) - it appears to be correctly classed in STX.

Keep in mind that I am a casual autocrosser with just enough knowledge to show up and tell them I'm C class and which components start putting us in STX. I am not aware of other ST classes.

Also, I don't understand what you're saying with the bolded statement.

Fastest raw time (what shows up on the clock at the end of your run) my car put down was a 52.407, fastest STR was a 52.746 - and STR should be faster (.841 vs .836 for PAX). Granted, that's a very small margin, but there it is. For reference, the fastest CS run was 52.647, and the top 20 was very heavily skewed to ES... It's certainly not typical results, but it happens.

Street, Street Touring, Street Prepared, etc. are preparation levels.

Within each preparation level are different classes intended to group together cars with similar performance level for that given preparation level.

So in Street you have AS-HS as well as SS. In Street Touring you have STF, STS, STX, STR, STU. Every class within a preparation level has the same list of allowed mods, with some minor exceptions (like varying wheel/tire widths and diff rules depending on ST class).

Sounds like that guy in CS was killing it; I'll stick with my stock car if it's only .25s slower.

There is no mention of 2017. Does this mean they will be in CS?
I hope not, I want to buy a 2017 BRZ this spring.

Odds are very likely 2017 BRZ/FR-S will be in CS.

Not only are (Non TRD) twins/BRZ moving to DS but a whole shit load of FS cars are moving as well. I just ran our last event with a 2016 Mustang 4cyl turbo EcoBoost plus performance package in FS this car next year will be moving to DS with a good driver times were 4 seconds faster than the 2 D Street mini's and FRS/BRZ. I was surprised to see this car run so well. It also had fastest times against 8 other FS cars all V8's.

Sorry, but there is no helpful data there at all. Looking at nationals results, the fastest 4cyl. pony car also had a better driver than DS or CS had, Mark Scroggs. CS ran in the wet one day and the fastest twin ended up 3.5 seconds behind Scroggs. DS had dry weather and ended up 2.2 seconds behind Scroggs. This is over 2 days. Its not nearly as bad as you say, and will just like every other class, be considered course dependent. The twins will still do fine in DS against these 4 cylinder pony cars.


DS 121.0
FS 118.8
CS 122.3(wet)

I agree with you. Just car vs car, it will be course dependent.

I'm also in Mark's region and he'll be in DS with the Camaro turbo. It should be an interesting year :)

Sounds like the 13-16 twins moving to DS is a done deal. From my understanding the Turbo Mustang and Camaro don't have good gearing in 2nd which could probably hurt them.

Ran an event in Huntsville yesterday after I removed my TRD springs and put car in DS trim. Was able to get within .1 sec of Nats DS champion on a 60+ sec course. Felt the car handled no differently than with TRD springs. Just an early subjective observation. And I did not drive the car to its potential.

Did you also have the TRD swaybars? Those probably make more of a difference than the TRD springs.

I run a 20mm Whiteline in front on stiff and OTS Koni yellow inserts and car is just about tuned in. Never bought the rear TRD cause I did not think the car needed it. Never pushed unless I over drove car. Trophied a couple of Tours last year and Co driver won Bristol Match tour in the car. But he is an alien....

So I look forward to the diverse DS class next year...

Question re Koni Sport Yellows
 

Hi everybody - I am building up my 2013 FR-S for D Street and I have a question regarding the use of Koni front replacement struts. The question relates to whether I should use Koni's complete replacement struts or the inserts. I have a good understanding of what needs to be done to use the inserts and I don't have a problem with going that route if it is best, but for the sake of convenience I am considering using the complete replacement strut if it can be done legally under D Street class specifications.


The issue is (of course) that I understand that the locating holes are bigger on the Koni complete units allowing a greater camber adjustment, particularly if using the 14mm crash bolts.


Is it legal to use the Koni complete units and the 14mm crash bolts if the camber is set within the limits that would otherwise be legal?


If I really want to use the Koni units (i.e., not inserts) what is the best course of action to stay legal within the Street classes?


Thank you.

Koni offers lock-out washers that make the shocks legal for street class and will send them to you at no charge. They are not legal without them.

It should also be noted that the inserts were prone to leak out through the adjusters.

Just buy the full replacements and call/email Koni to send you the mount inserts (required to be DS/CS legal) when you order the struts. They responded to my email within 10 minutes and sent the inserts very quickly.

The 2017 SCCA rules and classification are out, but the 2017 BRZ/86 are nowhere to be found in street class. But they are there in STX!
Also the other 2017 cars are in Street.
I don't understand. I'm buying a 2017 in a couple months, will I be in C or D, or is the 2017 not elegible in street, only in STX? :(
This make no sense.


https://www.scca.com/pages/solo-cars-and-rules


https://www.scca.com/downloads/19210...asses/download


Edit: I sent an email to the SEB asking them to class the 2017 twins in street. I'm not a member, so not sure if they'll consider my letter, but it's worth a shot.

Probably an innocent oversight, but a pretty disappointing one, especially for those parts of the country that have already held events under the new rules.

My guess is that the 2017s will continue in DS unless they have TRD parts. The update is incremental and not all that game changing; your gearing will make you accelerate a bit better at the cost of shifting more. Just beware, since the model has changed, they could change the classing at any time via the 12-month rule.

I had knee surgery today, so sometime tomorrow I will be editing the first post with my pass at the DS parts bin. I will probably leave some parts out if I don't know about 'em so once that's up, feel free to contribute and I'll keep updating that post!

I could see the 2017s in CS. They do have a larger rear sway bar. There is also the 17x7.5 wheels some of the models can get.

I would agree that the 2017's at least with the Subaru performance package or TRD package would be in CS.

I could see the normal 2017 cars without those to just be in DS with all the others.

I could see that split too.

I've been too loopy to do much of anything useful today. Maybe tomorrow.

I hope you are recovering well from your knee surgery. I hear rehab is the key and not a lot of fun.

I am recovering from back surgery last Thursday. Hope to be released before the Dixie Tour. But I think DS will be interesting and course dependent with the WRX and Mustang Turbo thrown in. CS is looking very NDish...

2017 BRZ signed up for DS at Dixie Tour next month. I have STILL not seen an SCCA official classing for the 2017 Twins. When does next Fastrack come out?

About 16 days from now.

I think it is a 2017 WRX

Here's the classing info from SCCA solo for this year:
http://cdn.growassets.net/user_files...pdf?1485464811

Twins are in DS unless you have the TRD package on your FRS.

I guess you're not allowed in CS or DS if you have a Toyota 86 then. They should probably update that list....

I still think that the BRZ with 7.5in wheels and Brembo brakes should be in CS with the FRS TRD. 0.5 in wider wheels gives the 245/40-17 tires a more proper wheel width and will improve the performance by a wider footprint and less sidewall flex...

And slightly better braking from all the speed generated by the stock torque :)

The fact that the 86 is not there, means that this list is just like the official 2017 rules: they have not included the 2017 twins.
There is no year for the BRZ, but seeing that they "forgot" the 86, means they probably meant 2013-2016 for the BRZ, like what is written in the official rules.


Last week i've sent a letter to the SEB. They'll probably answer in the upcoming Fastrack.

If I'm reading this correctly the new BRZ goes to DS. What's the point in moving everyone away from the Miata and away from the TRD suspension if all the cars will be made obsolete by the 2017 BRZ performance package model anyways?

Yes, I know we don't know if it will be faster with the Brembos, wider rear wheels, etc. or not but it definitely has the potential to be.

You're not reading that correctly. The current classing shows 2013-2016 cars and makes no mention of the 2017 cars, regardless of PP or not. I think it's likely we'll see all of the 2017 twins in CS due to shorter gearing, as crazy as that is.

There's no year listed on the BRZ which means BRZ 2017 is technically classed. The FR-S is the only one that shows a year.

Not so. BRZ shows DS, 2013-2016. That means the 2017 is not classed at this point. There is no rule that says if a year isn't classed it falls with the previously classed cars.

The linked document does not list any years for BRZ. So again... If I'm reading the LINKED DOCUMENT right that's what it says.