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11-30-2013, 07:25 PM
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#1 |
 
Drives: 2010 camaro ss Join Date: Mar 2013
Location: ft lewis,wa
Posts: 284
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Header without cats.
Ok I have tsp 1/78 lts on my 2010 ls3 and the smell from not haveing cats is pretty strong. I can smell if from like 25ft away! I've been around other cat less ls cars and their smell was kind of faint even the cammed ones. Is something wrong or is this normal?
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11-30-2013, 07:40 PM
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#2 |
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Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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Are you tuned? If so, who's tune are you running?
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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11-30-2013, 07:42 PM
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#3 |
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Drives: 2010 camaro ss Join Date: Mar 2013
Location: ft lewis,wa
Posts: 284
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I do have a tune but I have this problem before and after the tune. And I believe my tuner used hptuners
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11-30-2013, 09:02 PM
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#4 |
 Drives: 2012 Join Date: Aug 2013
Location: Denver, Co
Posts: 49
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That's the main reason I get cats. I have gone catlessin the past and I hate smelling like I went go karting
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11-30-2013, 09:05 PM
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#5 |
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Master ASE, GM, LSX Tech.
Drives: 2010 Camaro SS Join Date: Oct 2012
Location: Austin, TX
Posts: 1,034
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My Camaro is catless, cammed with Kooks long tubes and Kooks exhaust. From my experience depending on the brand fuel you run will affect the smell.
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2010 2SSRS A6, Custom Pat G. Cam, WCCH Cylinder Heads, Kooks Headers/Exhaust, BTR Valvetrain, Fluidampr 25% UDP, All Engine ARP bolts, Flex-a-lite radiator/Trans cooler, Yank converter, PFADT Suspension, ADM Race Intake/Scoop, Torq tow hook, CFD auto shifter, Dynojet AFR gauge, Aeroforce scan gauge, Brake Performance rotors/pads
Prothane bushings, ZL1 wheels, spoiler, Z/28 wickerbill, 1LE Aero/Suspension Package, Anderson Composites COPO Carbon Fiber Hood, LED lighting, Elite Catch Can, Improved Racing oil pan baffle, crank scraper, windage tray 480 RWHP 452 RWTQ + Nitrous Express 150 Shot |
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11-30-2013, 09:08 PM
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#6 |
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SYBIL
Drives: 2013 2SS/RS, silver ice metallic Join Date: Oct 2012
Location: Oklahoma
Posts: 1,444
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Im running Doug Thorley 1 3/4 Tri Y headers and no cats with a tune, I can only smell it if im standing directly behind the rear bumper. The smell is very minimal
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11-30-2013, 09:18 PM
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#7 |
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V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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In my 4th gen I have 22* of overlap no cats and it's not that bad. You must be a little rich at idle.
My L99 also has kooks Lt's no cats and center mount exhaust. No smell |
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11-30-2013, 09:25 PM
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#8 |
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Norcal Camaros
Drives: 2010 Red Jewel 2SS L99 Join Date: Mar 2012
Location: Nor-Cal Bay Area
Posts: 759
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Of course you will have weird smells until the new headers break in then after that it will depend on the gas you run. I use chevron 91 here in CA and at idle I can smell it but not to overwhelming. Its a different smell when I use 76 also but not as strong. U got a CAI? Look into your tune and see if your air-fuel mix might is off also.
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Blaque Diamond Wheels BD23's 20x10, Hankook V12 275, AAC footwell lighting, Switchback LED's, AAC Mailslot scanner, AAC underhood, grill & underbody led lighting, AAC Plasma fogs, Eagle eye HIDs, RJT Painted calipers, RJT painted engine bay, Viteese Paddle Shifters, CFD Hurst style Shifter, RJT painted speedo & gauge trim, RotoFab CAI, TSP 2" Headers with full 3" XS Power exhaust, Granatelli Slotted rotors & Hawk HPS pads, ACS Side Rockers, ACS Front splitter, ZL1 Grill, Havoc Rear diffuser, BMR 1.4 Springs, BMR Strut tower brace, BMR F/R Sway Bars, BMR Trailing Arms,
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11-30-2013, 09:29 PM
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#9 |
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Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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You need to have your tune checked. I ran catless without a tune for a couple hundred miles and definitely smelled the raw fuel from running rich. Once I was got tuned it was considerably better. It's always gonna be rich on the first startup of the day, no matter if you're catless or not. I switched to HFC's because I got an awesome deal on them. The smell is all but gone.
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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11-30-2013, 10:32 PM
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#10 |
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Drives: 2010 camaro ss Join Date: Mar 2013
Location: ft lewis,wa
Posts: 284
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Yea I'm running a spectera Cai and I'm sure the headers are broken in because my car is a dd and I've had them about 6 months. I just curious how it could be my tune tho if I had the smell before I tuned the car. But I will be contacting my tuner tomorrow to make an appointment to have it checked out
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11-30-2013, 10:41 PM
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#11 | |
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Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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Quote:
__________________
2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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11-30-2013, 10:43 PM
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#12 |
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Drives: 2010 camaro ss Join Date: Mar 2013
Location: ft lewis,wa
Posts: 284
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I don't think it's a fuel leak because it doesn't smell like unburnt fuel
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11-30-2013, 10:43 PM
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#13 |
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Drives: 2010 camaro ss Join Date: Mar 2013
Location: ft lewis,wa
Posts: 284
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Wouldn't that smell similar to the smell you get when pumping gas?
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11-30-2013, 10:43 PM
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#14 |
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Drives: 2010 camaro ss Join Date: Mar 2013
Location: ft lewis,wa
Posts: 284
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Also would octane boost help?
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