STX Rules and Setup Questions - Page 76 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Wepeel · 08-14-2014, 10:42 AM

Quote:

Originally Posted by dwx

The lower end is usually 92dB and you might be close depending where they stick the sound meter. How many other resonators are in the system? If you don't have other resonators it won't just be loud but it will also sound terrible and people will hate it and laugh at you.

Everything else about the exhaust is stock except for the header. I have a turndown from my '08 STI that I think will probably work, just been to lazy to try it out.

Thunderleg · 08-20-2014, 04:22 AM

This is my first year auto-xing my car. What is the purpose of spraying the tires between heats? Does the Cusco front strut bar w/ master cylinder brace meet the STX requirements? ( http://www.rallysportdirect.com/Cusc...Cylinder-Brace )

EN2_Squirrel · 08-20-2014, 07:17 AM

Quote:

Originally Posted by Thunderleg

This is my first year auto-xing my car. What is the purpose of spraying the tires between heats? Does the Cusco front strut bar w/ master cylinder brace meet the STX requirements? ( http://www.rallysportdirect.com/Cusc...Cylinder-Brace )

Master cylinder brace not legal. Spraying the tires is for cooling. As i have heard and @Scooby South and can some tires like the federal 595 rs-r do not work when they get above certain temps.

Kido1986 · 08-20-2014, 07:33 AM

Every tire compound has an optimal operating range. So tires have lower temperature range (Z2), some higher (RS3, especially RS3v1). Lower heat range tires need to be cooled as they exceed that range quickly and then do not grip well.

Thunderleg · 08-21-2014, 02:54 AM

I am running the Michelin PSS currently. Any suggestions on them? I currently only play with pressure during events, haven't sprayed them.

BRZZZZZZZZZZ · 08-21-2014, 05:03 PM

Tire sprayers are necessary if you run Z2s in my experience. Not once did I have to spray my RS-3 V1s though.

neurokinetik · 08-22-2014, 07:02 AM

Quote:

Originally Posted by BRZZZZZZZZZZ

Tire sprayers are necessary if you run Z2s in my experience. Not once did I have to spray my RS-3 V1s though.

I have yet to need to spray my RS3 V2s, either. Single driver car, though. Hottest event I've run this year was mid 80's. Grip only got better as it got hotter.

SubiePig · 08-22-2014, 08:31 AM

I got the V2 RS3's to the 150/170 range on concrete a few weeks ago and they were still grippy. Anything more than that I think would have been to much. You would really have to hot lap them for that to happen.

Kido1986 · 08-22-2014, 09:09 AM

Quote:

Originally Posted by neurokinetik

I have yet to need to spray my RS3 V2s, either. Single driver car, though. Hottest event I've run this year was mid 80's. Grip only got better as it got hotter.

It's that at 8am here hahaha. Even when I ran RS3s, I had to spray as a single driver.

BlaineWasHere · 08-22-2014, 07:14 PM

I had to spray my v2 RS3 on concrete with two drivers. We cooked em. Fine with 1 driver though.

vroom4 · 08-22-2014, 07:24 PM

Im jealous of not having 100 degree autocross events where you are spraying constantly....not jealous of those same places having rain though.

bimmer635csi · 08-22-2014, 07:25 PM

It was so hot during our event at CotA, when I went out for the 4th heat I had to bleed 5 psi off of the tires after they had sat parked for 6 hours. Double driver in that heat on fresh black asphalt mandated spraying the R-S3s.

MTCRX · 08-24-2014, 10:21 PM

Quote:

Originally Posted by Scooby South

I can understand your confusion... A few Years ago, 'Real' Aero(Wings, Splitters,) was allowed in ST. it was then ruled Illegal for the BIG wings and splitters.. the new rule for allowed 'Factory' Additions of lips and wings, OEM type that comes on US models

Bill

Bill- I am still thinking about this. Since the cars are twins would it be legal to put a front splitter on an FRS? Could it be interpreted as different styling package in the same model year? Thanks for anyone's thoughts on this. My initial interpretation is no, yet the two cars would in the same class with different option packages available.

mrazny · 08-25-2014, 02:19 PM

Quote:

Originally Posted by MTCRX

Bill- I am still thinking about this. Since the cars are twins would it be legal to put a front splitter on an FRS? Could it be interpreted as different styling package in the same model year? Thanks for anyone's thoughts on this. My initial interpretation is no, yet the two cars would in the same class with different option packages available.

without clarification, to the letter it's not allowed. Technically it's not allowed for the BRZ until the official clarification comes in. It philosophically follows the e36 clarification, but there is no clarification yet. You can mount a pretty good defense and possibly win your protest with a brz, but you'd still be better served by an official clarification by writing to the SEB.

08-22-2014, 08:31 AM	#1058
SubiePig Senior Member Join Date: Apr 2013 Drives: -'02 PSM WRX, '94 Miata, '13 BRZ Location: Lafayette, Louisiana Posts: 438 Thanks: 188 Thanked 155 Times in 112 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	I got the V2 RS3's to the 150/170 range on concrete a few weeks ago and they were still grippy. Anything more than that I think would have been to much. You would really have to hot lap them for that to happen. __________________ Sponsered by:Chasebays/Corr Performance Tuning/KartBoy/Bad Panda Motorsports/Racer-X Fabrication STX Build thread 14th/67 SCCA Nationals (2014)

08-22-2014, 07:14 PM	#1060
BlaineWasHere Grip>Drift Join Date: Jun 2012 Drives: FRS Location: NorCal Posts: 3,472 Thanks: 782 Thanked 1,749 Times in 918 Posts Mentioned: 53 Post(s) Tagged: 2 Thread(s)	I had to spray my v2 RS3 on concrete with two drivers. We cooked em. Fine with 1 driver though. __________________ My FR-S Build Thread!

08-22-2014, 07:25 PM	#1062
bimmer635csi Senior Member Join Date: Apr 2014 Drives: 2013 Cayenne turbo Location: Basement of the Alamo Posts: 254 Thanks: 6 Thanked 72 Times in 47 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	It was so hot during our event at CotA, when I went out for the 4th heat I had to bleed 5 psi off of the tires after they had sat parked for 6 hours. Double driver in that heat on fresh black asphalt mandated spraying the R-S3s. __________________ Chris Track, Autocross & Daily Driver build thread - SOLD Another A&DD for my VW GTI - SOLD And finally, my YouTube channel

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08-20-2014, 04:22 AM	#1052
Thunderleg Member Join Date: Mar 2014 Drives: Black BRZ Location: Denver, CO Posts: 95 Thanks: 66 Thanked 39 Times in 21 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	This is my first year auto-xing my car. What is the purpose of spraying the tires between heats? Does the Cusco front strut bar w/ master cylinder brace meet the STX requirements? ( http://www.rallysportdirect.com/Cusc...Cylinder-Brace )

08-21-2014, 02:54 AM	#1055
Thunderleg Member Join Date: Mar 2014 Drives: Black BRZ Location: Denver, CO Posts: 95 Thanks: 66 Thanked 39 Times in 21 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I am running the Michelin PSS currently. Any suggestions on them? I currently only play with pressure during events, haven't sprayed them.

08-21-2014, 05:03 PM	#1056
BRZZZZZZZZZZ Car Nut Join Date: Dec 2013 Drives: BMW 335d, Toyota Echo RS, FRS Location: Calgary Posts: 1,557 Thanks: 368 Thanked 603 Times in 346 Posts Mentioned: 12 Post(s) Tagged: 2 Thread(s)	Tire sprayers are necessary if you run Z2s in my experience. Not once did I have to spray my RS-3 V1s though.

08-22-2014, 07:24 PM	#1061
vroom4 Join Date: Feb 2014 Drives: BRZ Location: East Posts: 820 Thanks: 18 Thanked 301 Times in 186 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Im jealous of not having 100 degree autocross events where you are spraying constantly....not jealous of those same places having rain though.

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