Help with Classing? Solo
 

I'm having trouble figuring out what class my car should be in. I was running C stock, but I've sinced moved to STU and was told that wouldn't work. At the last event I ran, they put me into B Street Prepared.

When I look at the SCCA Rule book it looks like I can fit into STR (unfortunately my tires are too wide) or A street prepared.

My car has the following:

255 front tires (hankook R-S3's)
285 rear tires (hankook R-S3's)
BC BR Coilovers
Stillen CAI
Fast Intentions test pipes and catback
25 row Z1 oil cooler

Oil cooler and no CATs put you in ASP no matter what size your tires are.

Yup, it's ASP for you. Unfortunately without a set of Hoosier A6's you won't be competitive.

Are there no other options? What if I put my cats back on?

In order to get back to STR (I believe that's the ST class the 370z is legal for) you'd have to put the cats back on, remove the oil cooler, and get the proper size wheels and tires for the class. Also if your coilovers are true type coilovers in the rear then those would have to go too (true types in the rear aren't even legal in ASP iirc).

IMHO SCCA Solo classing really sucks for the Z34.

The stillens cai put you in ASP too. Intake cannot be modified in stock class other then drop in filters. No MAF tubes either. To pull off STR, you Max wheel width is 9" and a 255 tire. With the throttle control your gonna need with a 255 on the rears, its not going to be much fun and you won't be very fast. I'm just doing it for fun. gear swap puts me in FP lol!!

Geeze I should just stick with HPDE haha.

I'll stick with ASP, I don't feel like un-modifying my car in order to be in a more competetive class. Perhaps I'll get some R-comps once I kill my R-S3's.

It's actually better to learn on street tires (or so I'm told by former national ASP trophy winners).

When you actually get around to getting a new set of rubber I'd suggest going with a square setup. My car felt a million times better with the square setup versus the factory stagger.

I wish I had talked to you before I recently bought my track wheels/tires. I purchased 18x9.5/18x10.5's.

FWIW I have 18 x 10 up front and 18 x 11 in the rear. I'm currently running 295/40-18 A6's all around. Unfortunately hoosier discontinued that size so what I'll run after these wear out is still up in the air.

Here they are on the car:

http://i1266.photobucket.com/albums/...13SoloZPic.jpg

What kind of offset are you running? Do you have any issues rubbing up front?

+30 Front, +18 Rear

I haven't noticed any signs or sounds of rubbing. I'm at factory ride height fwiw.

Got the wheels from vivid racing.
TE37SL's in Track Sizing and Limited Colors

This has probably been covered but here it is again. You might want to look at the rules for STR, FP, and SSM, see if that works out for you.
B stock (BS) is for the Nismo
C stock (CS) is for all the other 370Z's
A Street Perpared (ASP) is the next step up for the Nismo and all other 370Z's.
Street Touring Roadster (STR) non-Nismo models and there is a max width of 255mm on tires.
F Perpare (FP)
Also you should be able to run Super Street Modified (SSM) (there is a max width of 275mm on tires.)<-- wrong) (right --> (if you run a tire with a width of 275mm or less you can minus -200lbs)

This is not true. There is a 200 lbs weight break for cars that use less than 275 width tires but you can run as big as you want to with no penalty.

Yup your right. My bad, I read the damn thing wrong. Thanks

I heard from Learic Cramer that she is planning on abandoning the 370Z next due to the changes to Stock.

STR, and in particular the specific exclusion of the Nismo is a joke. They even amended the rules at the same time to clarify that larger than 255 stock tires were not allowed. First thing a Z owner has to do to run in a decent class is downgrade.

I think STU would be ideal for the 370Z but have had no luck in petitioning the boards.

Onelownismo, in the meantime, as a novice, you should put your cats back on and quietly run in C-Stock. I'll see you at VAC?

Hmmm I'm still a little lost on the classing. After reading this thread it looks like I'd be in ASP? Could someone help me out and take a look at my mod list / give me a little direction?Thanks! Actually have my second event ever with the Z coming up this Sunday. Placed 3rd out of 19 in novice my first time around 2-3 weeks ago. So pumped to do it again!

http://www.the370z.com/members-370z-...s-project.html

Anyone have a nice guideline rule list of parts and what nots?

ASP. Get yourself a set of sticky R-Comps and have fun. :tup:

Just curious, what class you were running for that first event you did?

I really don't like the idea of downgrading my car. I think I'll take my chance with ASP and get some R-comps next time I get tires.

I'm on the waiting list for the VAC (if you're talking about the same thing that I think you are). If I don't get into it I may just go and spectate. :tup:

Ah crap lol I was running novice STR. Obviously it's not such a big deal unless you're really competing seriously? Will it make a difference if I do novice STR vs ASP this time around? Thanks again!

Don't most clubs prefer you run novice a few times before switch anyways?

Here in my region everyone runs in the normal class they're supposed to be in. After the event they just take the Novices and out of they're class and do results based on the PAX index.

Buying off the shelf stuff will only get you about 90% of the way there to a full prep SP car...

Order of importance:
1) Instruction
2) Seat Time
3) Better Instruction
4) Seat Time
5) Seat Time
6) A6's or R1S-if you have a codriver and live in the desert
7) Real Diff
8) Suspension
9) Power
10) Weight
11) Aero

You coming to the Toledo ProSolo this year?

Yes. Someone has to keep the DSP Bimmers honest...

Car hasn't run since April due to some breakage at the Dover Tour. That said, the front aero is now done, car will be on the dyno next week for an E85 tune, and I've made some other set-up changes as well. Going to have to relearn the car during the Sat morning session.

There is the Tuner Car Challenge (CHA) class. That's for drivers with less than 3 years Solo competition experience and cars that do not naturally fit into open classes, and the year end champion will not be eligible for this class in subsequent years.
We have a pretty good sized CHA class here in my my region and they like to push you into an actual class after a year of running that champion or not. I never run CHA, I started right off in DSP in my S14.

Also the word I've been hearing is that the stock class will no longer run race tires, and will be street tire class next year, hopefully I've heard this right.

First off, the CHA class is not a normal class that is run everywhere. Some SCCA regions create their own classes to fit their specific needs. In my region, since we have a lot of national level competitors we tend to follow the national level rules pretty strictly.

Secondly the Stock classes being moved to street tires for next year is correct. It is possible that SS will continue to use R-Comps although that doesn't affect us and our Z's. Additionally allowed modifications for Stock classes will possibly change next year as well.

Off topic: anyone else see where they moved the FRS/BRZ? what a gift

For next year (2014) there will be BOTH Stock as it exists now and the new Street (stock w/ street tires and lots of classing changes). In 2015 Stock goes completely away and we are left with Street.

The FRS/BRZ move is just a proposal. If you disagree with the move you should let the SAC/SEB know. SEB Letter Submission Form

I competed over the weekend in ASP. It was unfair. I was up against a 500whp Evo on R-compounds. He beat me by about 4 seconds......

That's not bad only being 4 seconds going up against a beast like that.

If he was really making 500whp, then it wasn't remotely ASP legal. Stock turbo +stock cams even with E85 you are probably talking 380-390whp tops in ASP trim. Tell him to come up to DC and he can lose to a 285whp 350z :).

I think he has an upgraded turbo. That bumps him out of ASP?

Yes.

Interesting. If was actually competing for points this year (missed too many events) I'd file a complaint. We'll see what happens next year.