SCCA DST Setup Thread(2025)

[e1_griego]

My setup is the same as it's been for a while.

MCS 2WR, 6k/9k springs
Karcepts sway bars f/r
Racer-X Rear LCA with delrin bushings
Ace Header
Perrin Inlet with stock airbox
CSG Exhaust
OSG tuned by Lugod
Whiteline inserts for diff and trans mount
STI motor mounts
ECUTek tune by CSG
Radium Catch Cans because they were cheap

Only little 'extras' that I've added are a p3 gauge, a Momo Monte Carlo steering wheel and a QR so I can be more comfortable on long trips, and some grimmspeed hood shock things. I did also put in some release series 1.0 seats because I hate the red shoulder patches on the stock FRS seats lol.

[cmiovino]

Originally Posted by ka-t_240

I can't see why, but does anyone think there would be problems having the Verus Sidemarker deletes installed in ST?

If anyone does protest that, they're dumb. Even at a national level.

Aren't they just sidemarker replacements (without bulbs) anyways? Might be saving an ounce each side being carbon fiber

[cmiovino]

My mod list:


STX related:
Yokohama Advan A052 245/40/17 (moving to RE-71RS, same size)
Apex ARC-8 17x9 +35
RaceComp Engineering Superstreet-1 coilovers (6k even springs)
SPC rear lower control arms
SPC camber bolts
19mm Perrin front swaybar
Ferodo DS2500 brake pads
Deka ETX18L lightweight battery
Blitz SUS Power LM air filter
Borla S-Type catback
Perrin inlet with stock box
Alignment: -4 camber up front, -2.5 rear, zero toe all around.

Fun extras:
Grimmspeed hood struts
Grimmspeed exhaust hangers
Grimmspeed shift knob
Perrin battery tie down
JDM clear sidemarkers
MTEC clutch spring
Cusco wide accelerator pedal
Rally Armor mudflaps
ARP wheel studs
Gorilla spline drive lug nuts
Motul 8100 Eco-lite 0w-20
Motul Gear 300 75w-90

No header and tune yet. I call this STX-lite.

[ka-t_240]

Originally Posted by cmiovino

If anyone does protest that, they're dumb. Even at a national level.

Aren't they just sidemarker replacements (without bulbs) anyways? Might be saving an ounce each side being carbon fiber

Correct, just bolt in pieces that don't call out ahaha. My corner lights keep falling out if I smoke a cone, and I hate the orange so was thinking its time to buy something that looks "cool".

[cmiovino]

I was looking at the results of the top spots at the Red Hills National and Las Vegas Pro for tire results. From the pictures on the old Solo Matters FB page, it looked like 90% of the class winners were on Vitour P1's.


Here's a breakdown of the class wins Vitour just posted themselves:
2025 Tire Rack SCCA Red Hills National Tour
Vitour P1 takes top spot in 7 classes!
#1 PAX on day 2!
Combined index strong showing for S/ST/X/CAM!
SS 1,2
CS 1,6
DS 4
HS 2
AST 1,2
CST 1
DST 1,2
CAM-T 1
XA 1,2,3
XB 1
LS 2

2025 Tire Rack SCCA Las Vegas ProSolo
#1 PAX Overall!
SS 1,2,3,4
BS 2
DS 2,3
S1 3,4
S3 3,4
CAM 1,2,3,4
L2 2

@DocWalt, any real world feedback? 5th in PAX out of 202. I think top PAX on day 2.

Here's an STX twin getting top PAX and Raw at a test and tune fun event from last year. Could be highly skewed by them, but it's at least one data point and a video:

[jcaserta]

Originally Posted by ka-t_240

I can't see why, but does anyone think there would be problems having the Verus Sidemarker deletes installed in ST?

Technically not legal but as long as you haven't maxed out all your weight reduction in other areas then that would be a real weenie protest and I would hope nobody would do that. But if they did protest you, they'd win I think.

[foshjowler]

Originally Posted by cmiovino

I was looking at the results of the top spots at the Red Hills National and Las Vegas Pro for tire results. From the pictures on the old Solo Matters FB page, it looked like 90% of the class winners were on Vitour P1's.


Here's a breakdown of the class wins Vitour just posted themselves:
2025 Tire Rack SCCA Red Hills National Tour
Vitour P1 takes top spot in 7 classes!
#1 PAX on day 2!
Combined index strong showing for S/ST/X/CAM!
SS 1,2
CS 1,6
DS 4
HS 2
AST 1,2
CST 1
DST 1,2
CAM-T 1
XA 1,2,3
XB 1
LS 2

2025 Tire Rack SCCA Las Vegas ProSolo
#1 PAX Overall!
SS 1,2,3,4
BS 2
DS 2,3
S1 3,4
S3 3,4
CAM 1,2,3,4
L2 2

@DocWalt, any real world feedback? 5th in PAX out of 202. I think top PAX on day 2.

Here's an STX twin getting top PAX and Raw at a test and tune fun event from last year. Could be highly skewed by them, but it's at least one data point and a video:

I can tell you that Andrew and co-driver Todd weren't on Vitours in CS. They're local, and were on the Stone and Yoks mix. Assume that's not the only example. Not sure where they got their info, but that's not accurate.

[DocWalt]

Yeah I was top pax on day 2. Car is a monster and we put in a ton of work over the winter getting it to where it is.

I have no real feedback on the tires other than "they let you do more dumb things" but they also take TONS of heat to even remotely work. Single driver below 70 degree sunny day? Good luck.


They also drive bizarrely. Sharp steering that then sort of falls on its face and goes numb before it hits the peak grip. If you have a car that isn't *super* balanced steady state with shocks that stabilize the car you will be chasing your tail since the rear of the car won't keep up with the front.


I also don't know if they're faster.

[cmiovino]

Originally Posted by DocWalt

I have no real feedback on the tires other than "they let you do more dumb things" but they also take TONS of heat to even remotely work. Single driver below 70 degree sunny day? Good luck.

They also drive bizarrely. Sharp steering that then sort of falls on its face and goes numb before it hits the peak grip. If you have a car that isn't *super* balanced steady state with shocks that stabilize the car you will be chasing your tail since the rear of the car won't keep up with the front.

I also don't know if they're faster.

I interpret this as "not for PA events"
Our one local group runs in numerical order, so you get a run every hour or so. Being in PA, it's not going to be 70 degrees for morning runs even at our other SCCA region that has split morning/afternoon heats (3 in each, 20 minutes between).


I heard another theory they were mainly testing and getting feedback out west because they know they take tons of heat to work. Not to mention saying more people were running them than who actually were. Just sounds like everything about them are shady.

I'm also questionable on a lot of the tread disappearing into a slick like the Kuhmo V730's. Isn't going to be great for us that commute to events in the rain or have more rainy events. Really just sounds like a V730 2.0 with the heat they need too.

I'm going to chalk your result mostly up to the car and driver. The tires probably work, but might not be light-years ahead like the internet is trying to make up believe.

[foshjowler]

Originally Posted by DocWalt

Yeah I was top pax on day 2. Car is a monster and we put in a ton of work over the winter getting it to where it is.

I have no real feedback on the tires other than "they let you do more dumb things" but they also take TONS of heat to even remotely work. Single driver below 70 degree sunny day? Good luck.


They also drive bizarrely. Sharp steering that then sort of falls on its face and goes numb before it hits the peak grip. If you have a car that isn't *super* balanced steady state with shocks that stabilize the car you will be chasing your tail since the rear of the car won't keep up with the front.


I also don't know if they're faster.

Good to see someone with some insight into them on a light(er) car with camber. The steering response is the first I've heard any insight into, and not confidence inspiring.



On these cars with a single driver, I've had issues getting enough heat into the Stones in all but the hottest of days. And many times it's only been the third run that the tires felt in the right temp zone.


They're certainly in the noise, and if they turn out to be the fast tire, then most will be on them. But their marketing has been sketchy at best. I don't think Dallas intentionally gave the incorrect results, he clearly just looked for Blanks and Other in the results, and assumed they were on the P1. It's the deleting anything that's less than high praise for them that makes me not trust them.

[Yetti]

Originally Posted by DocWalt

I have no real feedback on the tires other than "they let you do more dumb things" but they also take TONS of heat to even remotely work. Single driver below 70 degree sunny day? Good luck.

As someone who lives in a colder climate where a few months of my Autox season could be below 70 degrees sounds like I will be on Yokohamas until some other tire comes out.

[tuna]

Got my first events done with the updated setup. I went to 7k rear and added rear subframe bushing. A big shoutout to Myles at RCE for that recommendation/support as I'm much more comfortable pushing the car now and it rotates a lot better with an overall neutral balance.

17x9 RPF1s
245/40 A052s
RCE SS1s 6k front and 7k rear
RCE Rear subframe bushing inserts
Eibach 25mm front bar set to the stiffest setting
Whiteline 16mm rear set to the softest setting
Tomei UEL headers
Ebay high flow cat
Invidia catback exhaust
Schroth Rallye 3 harness

[spcmafia]

Reviving thread. Can anyone take a look at my build and tell what I need to take out/restore or add to properly be in DST?

wing is gone.

Build Thread

[DocWalt]

Originally Posted by spcmafia

Reviving thread. Can anyone take a look at my build and tell what I need to take out/restore or add to properly be in DST?

wing is gone.

Build Thread

STI lip kit is legal, TRD spoiler is not.
You need a catted frontpipe.
Roll center correction kit is not legal.




At national events all of those would get attention, locally I wouldn't really care though I know they're not legal.