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02-01-2021, 08:51 PM
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#1 |
 
Drives: 2018 Camaro SS 1LE M6 Join Date: Oct 2018
Location: Northern California
Posts: 345
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Nasty intake valves
Anyone know if it’s possible to clean the intake valves while on the car? Had the manifold off and took a peak inside. Had some gooey tar looking buildup on the bottom third of the stem.
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Camaro 2SS 1LE, MBRP Catback, Mishimoto Catch Can, Rotofab dry, TSP1 7/8” headers,DSX FF, Pray ported MSD, 95mm TB
492WHP 473WTQ |
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02-01-2021, 10:16 PM
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#2 |
      
Drives: 19 Chevrolet Camaro 2SS 1LE Shock Join Date: Apr 2020
Location: BC, Canada
Posts: 1,947
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Generally, people use walnut shell blasting to address the carbon buildup.
That said, I believe GM addressed the carbon buildup issue before. They mentioned that it is mostly just aesthetic. The buildup doesn't meaningfully impact performance.
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Current:
2019 Chevrolet Camaro 2SS 1LE M6 Shock GM Performance Intake and that's it, because driver mods before car mods Past: 2009 Mazda RX-8 GT M6 Velocity Red Mica (Sold) 2015 Chevrolet Corvette Z51 2LT M7 Velocity Yellow Tintcoat (Flood totaled) |
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02-01-2021, 11:11 PM
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#3 |
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Drives: 2018 Camaro SS 1LE M6 Join Date: Oct 2018
Location: Northern California
Posts: 345
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I’ve had my catch can on since about 8k miles. It was just kinda ugly. I did see a video that I think Mishimoto posted of some jackoffs using compressed air and a wire wheel inside the intake port. THAT made me want to head butt a knife.
Anyway, maybe next time I have the manifold off I’ll use some carb cleaner and a vacuum.
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Camaro 2SS 1LE, MBRP Catback, Mishimoto Catch Can, Rotofab dry, TSP1 7/8” headers,DSX FF, Pray ported MSD, 95mm TB
492WHP 473WTQ |
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02-02-2021, 01:09 AM
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#4 | |
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2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,021
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Quote:
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting
Added after delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph...  |
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02-02-2021, 01:43 AM
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#5 |
 Drives: 18 Ford Raptor, 21 2SS 1LE M6 Join Date: Dec 2020
Location: SoCal
Posts: 127
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Another member from Canada has 175k miles and had the same buildup, but no issues for him.
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02-02-2021, 09:45 AM
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#6 | |
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Drives: 2018 Camaro SS 1LE M6 Join Date: Oct 2018
Location: Northern California
Posts: 345
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Quote:
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Camaro 2SS 1LE, MBRP Catback, Mishimoto Catch Can, Rotofab dry, TSP1 7/8” headers,DSX FF, Pray ported MSD, 95mm TB
492WHP 473WTQ |
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02-02-2021, 09:50 AM
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#7 |
Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2018
Location: Front Range, CO
Posts: 1,865
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Just give it the "Italian Tune Up", you can get the intake valve temps over the point deposits form and it'll help burn them off.
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02-02-2021, 11:15 AM
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#8 | ||
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Account Suspended
Drives: 2017 Camaro SS 1LE Join Date: Oct 2018
Location: AZ
Posts: 429
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02-02-2021, 11:19 AM
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#9 |
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Drives: 2018 Camaro SS 1LE M6 Join Date: Oct 2018
Location: Northern California
Posts: 345
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I can retaliate against my a**hole neighbor who like to make car videos of him bangin the rev limiter in his McLaren at midnight. Feed this puppy some 100* and see what happens
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Camaro 2SS 1LE, MBRP Catback, Mishimoto Catch Can, Rotofab dry, TSP1 7/8” headers,DSX FF, Pray ported MSD, 95mm TB
492WHP 473WTQ |
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02-02-2021, 11:36 AM
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#10 | ||
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Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2018
Location: Front Range, CO
Posts: 1,865
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Quote:
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02-02-2021, 01:18 PM
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#11 | |
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Drives: 19 Chevrolet Camaro 2SS 1LE Shock Join Date: Apr 2020
Location: BC, Canada
Posts: 1,947
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Realistically, you won't get the intake valves hot enough unless you are hitting a track. I mean, it's not like you are going to look at the intake valve all day. If there is a little bit of buildup, I wouldn't lose sleep over it. Sent from toaster or something
__________________
Current:
2019 Chevrolet Camaro 2SS 1LE M6 Shock GM Performance Intake and that's it, because driver mods before car mods Past: 2009 Mazda RX-8 GT M6 Velocity Red Mica (Sold) 2015 Chevrolet Corvette Z51 2LT M7 Velocity Yellow Tintcoat (Flood totaled) |
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02-02-2021, 02:00 PM
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#12 |
     
Drives: 2016 1ss camaro Join Date: Feb 2016
Location: 909
Posts: 9,814
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no catch can here and i track my car wonder what mine look like lol
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 16 1SS NIGHTFALL GRAY METALLIC WITH NPP #BECAUSERACECAR #SAVETHEMANUALS |
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02-02-2021, 02:13 PM
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#13 |
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Drives: 2018 Camaro SS 1LE M6 Join Date: Oct 2018
Location: Northern California
Posts: 345
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Yea I figured it’s not a huge deal it was just ugly. Now my 2002 Ford Explorer was disgusting. I had my brother hold rpms at 5k while I dumped an entire can of carb cleaner into the intake. Did it work? Idk. But it didn’t blow up and I just tapped 300k.
__________________
Camaro 2SS 1LE, MBRP Catback, Mishimoto Catch Can, Rotofab dry, TSP1 7/8” headers,DSX FF, Pray ported MSD, 95mm TB
492WHP 473WTQ |
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02-02-2021, 02:14 PM
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#14 | |
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Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2018
Location: Front Range, CO
Posts: 1,865
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The issues VW had with their engines were highly dependent on driving habits. Our 6.2L has a stock air/oil separator and new oils are less volatile so maybe it doesn't matter but you can definitey get the intake valves hot enough on the street.
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