melting stock cats? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Roadcone · 10-20-2014, 04:51 PM

Do the stock cats have a tendency to melt under extreme use I've never really seen anything about it but the last two cars i had were bad about wiping out cats in track conditions.

CSG David · 10-20-2014, 05:30 PM

Quote:

Originally Posted by Roadcone

Do the stock cats have a tendency to melt under extreme use I've never really seen anything about it but the last two cars i had were bad about wiping out cats in track conditions.

It should not on new OEM stock tunes (before the reflashes and changes, we were the first to blow out cats on completely stock everything). We have clients with tuned setups melt cats but the logs revealed that the tuning parameters were the ones to blame. Proper tuning should not melt cats.

Roadcone · 10-21-2014, 10:07 AM

well, there goes one reason to justify a catless header to myself... i guess because racecar is now the reason...

Model Citizen · 10-21-2014, 10:30 AM

hi

in fairness the car is boosted and probably was running a bit rich.

<40k miles, 7 track days, 200+ autox runs.

CSG David · 10-21-2014, 10:16 PM

Quote:

Originally Posted by Roadcone

well, there goes one reason to justify a catless header to myself... i guess because racecar is now the reason...

I recommend catless setups if you're planning to track. For one, you don't have to worry about replacing expensive factory cats you blew out just before smogging your car. All you need to do is just bolt the factory cats back on and boom, you're ready to go.

Roadcone · 10-28-2014, 02:37 PM

smogging? inspection? these things dont happen in race car country south carolina

seriously, we have cars running around with 88 and 91mm turbos with thru the fender exhaust on the street here lol

10-20-2014, 04:51 PM	#1
Roadcone StreetKart Join Date: Jul 2013 Drives: 2014 Scion FR-S Monogram Location: Upstate, SC Posts: 477 Thanks: 43 Thanked 181 Times in 111 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	melting stock cats? Do the stock cats have a tendency to melt under extreme use I've never really seen anything about it but the last two cars i had were bad about wiping out cats in track conditions. __________________ TRD\|Verus Engineering\|Titan7\|DEZOD Motorsports\|JDL Auto Design

10-21-2014, 10:07 AM	#3
Roadcone StreetKart Join Date: Jul 2013 Drives: 2014 Scion FR-S Monogram Location: Upstate, SC Posts: 477 Thanks: 43 Thanked 181 Times in 111 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	well, there goes one reason to justify a catless header to myself... i guess because racecar is now the reason... __________________ TRD\|Verus Engineering\|Titan7\|DEZOD Motorsports\|JDL Auto Design

10-28-2014, 02:37 PM	#6
Roadcone StreetKart Join Date: Jul 2013 Drives: 2014 Scion FR-S Monogram Location: Upstate, SC Posts: 477 Thanks: 43 Thanked 181 Times in 111 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	smogging? inspection? these things dont happen in race car country south carolina seriously, we have cars running around with 88 and 91mm turbos with thru the fender exhaust on the street here lol __________________ TRD\|Verus Engineering\|Titan7\|DEZOD Motorsports\|JDL Auto Design

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