STX question - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

JerryMichaels7 · 01-21-2014, 11:09 PM

So for my understanding on our cars we have 2 cat's and since we have multliple we can go catless header and get a catted FP and be good??

RiskyTrousers · 01-21-2014, 11:12 PM

Yes sir!

JerryMichaels7 · 01-21-2014, 11:15 PM

Just got hooked and since I already have my coilovers orderded and a CAI installed I am going to just stay in STX, now to get some tires lol

finch1750 · 01-21-2014, 11:18 PM

If you have any other rules questions for stx there is a discussion thread here:

http://www.ft86club.com/forums/showthread.php?t=25779

reardrv · 01-21-2014, 11:40 PM

I wasn't really sure of that myself do to the wording of the SCCA rulebook. It states that any catalytic converter is allowed and multiples may be replaced by a single cat. But it must be with in 6 inches of the stock location, does this mean that a single cat must be within 6 inches of the location of both cats? It's a little ambiguous.

Ranatsu · 01-22-2014, 01:10 AM

Quote:

Originally Posted by reardrv

I wasn't really sure of that myself do to the wording of the SCCA rulebook. It states that any catalytic converter is allowed and multiples may be replaced by a single cat. But it must be with in 6 inches of the stock location, does this mean that a single cat must be within 6 inches of the location of both cats? It's a little ambiguous.

6 inches from the location of either the front cat or the rear cat.

edit.. nevermind it apparently says specifically the final cat.

2superblus · 01-22-2014, 12:52 PM

Per 2013 Solo Street Touring rules 14.10

E. Catalytic converters: Any catalytic converters are allowed, but must
attach within 6” of the original unit. Multiple catalytic converters may
be replaced by a single unit. The inlet of the single replacement converter
may be located no further downstream than 6” (152.4mm)
along the piping flow path from the original exit of the final OE converter.
The extents of an OE converter are defined by the expansion
chamber in which the catalyst is contained, regardless of placement
within larger exhaust sections. Replacement converters must have
a minimum catalyst density of 100 cells per inch and minimum substrate
length of 3” (76.2mm).

01-21-2014, 11:09 PM	#1
JerryMichaels7 Senior Member Join Date: Mar 2013 Drives: Whiteout FRS Location: South, Ga Posts: 348 Thanks: 19 Thanked 144 Times in 80 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	STX question So for my understanding on our cars we have 2 cat's and since we have multliple we can go catless header and get a catted FP and be good?? __________________ life's greatest stories usually start with the words, "fuck it!".

01-21-2014, 11:15 PM	#3
JerryMichaels7 Senior Member Join Date: Mar 2013 Drives: Whiteout FRS Location: South, Ga Posts: 348 Thanks: 19 Thanked 144 Times in 80 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Just got hooked and since I already have my coilovers orderded and a CAI installed I am going to just stay in STX, now to get some tires lol __________________ life's greatest stories usually start with the words, "fuck it!".

01-21-2014, 11:18 PM	#4
finch1750 Undisputed El Presidente Join Date: Jun 2012 Drives: Zenki 37J ZN6 Location: Stockton, CA Posts: 11,593 Thanks: 9,403 Thanked 9,411 Times in 5,270 Posts Mentioned: 374 Post(s) Tagged: 33 Thread(s)	If you have any other rules questions for stx there is a discussion thread here: http://www.ft86club.com/forums/showthread.php?t=25779 __________________ "Just like how a strut bar somehow enables you to corner 20MPH faster around a cloverleaf on-ramp, when the reality is, you can do it already but you just don't have to balls to do it." - CSG David

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01-21-2014, 11:12 PM	#2
RiskyTrousers Senior Member Join Date: Nov 2011 Drives: '87 Corolla GTS, '13 FR-S 6MT Location: United States Posts: 364 Thanks: 54 Thanked 146 Times in 67 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Yes sir!

01-21-2014, 11:40 PM	#5
reardrv Senior Member Join Date: Sep 2013 Drives: 2013 Subaru BRZ Location: NH Posts: 109 Thanks: 56 Thanked 40 Times in 27 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I wasn't really sure of that myself do to the wording of the SCCA rulebook. It states that any catalytic converter is allowed and multiples may be replaced by a single cat. But it must be with in 6 inches of the stock location, does this mean that a single cat must be within 6 inches of the location of both cats? It's a little ambiguous.

01-22-2014, 12:52 PM	#7
2superblus Senior Member Join Date: Sep 2012 Drives: 13 BRZ WRB Location: Wiscowsin Posts: 269 Thanks: 71 Thanked 132 Times in 78 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Per 2013 Solo Street Touring rules 14.10 E. Catalytic converters: Any catalytic converters are allowed, but must attach within 6” of the original unit. Multiple catalytic converters may be replaced by a single unit. The inlet of the single replacement converter may be located no further downstream than 6” (152.4mm) along the piping flow path from the original exit of the final OE converter. The extents of an OE converter are defined by the expansion chamber in which the catalyst is contained, regardless of placement within larger exhaust sections. Replacement converters must have a minimum catalyst density of 100 cells per inch and minimum substrate length of 3” (76.2mm).

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