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Old 09-18-2018, 01:20 PM   #15
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Quote:
Originally Posted by Tcoat View Post
That is just it. It is engineered into the system. That does not mean you can take a system that was not engineered for it and expect the same results.
Those pops and crackles are explosions occurring where the parts are not designed for explosions. I have never seen good results from such actions.
Remember the day when cruising you would just turn the key off for a second or 2 then turn it back on? That was a real backfire! Watch my friend blow the muffler right off of his moms car doing that!
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Old 09-18-2018, 01:51 PM   #16
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It's just unburnt fuel being dumped into the manifold. Worst thing it might do is deposit more carbon in the exhaust or reduce the lifespan of the cat, or both. Cheap to fix. Worth the fun. My catback pops sometimes.
No those are not the "worst" that can happen. This is not a risk free mod but as long as people understand and accept the risk and responsibility then all is good. I just doubt that many would. Blow a valve and it will be another "damn crappy Subaru engines they need to cover this under warranty or we should sue" scenario.
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Old 09-19-2018, 12:40 AM   #17
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I ran this tune for a bit for the fun of it. Ended up fouling my O2 sensor for my AFR gauge - I haven't checked the condition of the other sensors. I was running it at 2500 rpm and up. Ended up dialing it back to only when I'm above 5k. Now it's more of a surprise when it occurs, and often out on track adding that much more entertainment.
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Old 09-19-2018, 02:46 AM   #18
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This can coze O2 sensore damage after long term
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Old 09-19-2018, 08:04 AM   #19
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Originally Posted by Grady View Post
Remember the day when cruising you would just turn the key off for a second or 2 then turn it back on? That was a real backfire! Watch my friend blow the muffler right off of his moms car doing that!
Backfires happen in the intake manifold though...
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Old 09-19-2018, 07:53 PM   #20
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Backfires happen in the intake manifold though...
Some are in the intake and some are in the exhaust. There is a different name for the exhaust ones but I don't remember what it is and most just call them all "backfires" anyway. Both are just explosions outside of the combustion chamber but the exhaust ones tend to be more spectacular. Sort of like burping versus farting.
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Old 09-19-2018, 08:27 PM   #21
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Quote:
Originally Posted by StraightOuttaCanadaEh View Post
It's just unburnt fuel being dumped into the manifold. Worst thing it might do is deposit more carbon in the exhaust or reduce the lifespan of the cat, or both. Cheap to fix. Worth the fun. My catback pops sometimes.
OR fouling O2 sensors, burning valves up, or blowing muffler packing out. All things that have been seen with this tune edit....
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Old 09-19-2018, 10:48 PM   #22
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About as useless as Harley riders quotes. Loud pipes saves life’s. B. S. Gives our platform unwanted notice. Not to mention it sounds like crap
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Old 09-20-2018, 08:33 AM   #23
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Quote:
Originally Posted by Tcoat View Post
Some are in the intake and some are in the exhaust. There is a different name for the exhaust ones but I don't remember what it is and most just call them all "backfires" anyway. Both are just explosions outside of the combustion chamber but the exhaust ones tend to be more spectacular. Sort of like burping versus farting.
Ones in the exhaust are after fires, because they happen after the combustion chamber.
The two terms are NOT the same thing and are NOT interchangeable.
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Old 09-20-2018, 08:45 AM   #24
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Ones in the exhaust are after fires, because they happen after the combustion chamber.
The two terms are NOT the same thing and are NOT interchangeable.
Both are the ignition of fuel outside of the combustion chamber. Whether before or after they are the same concept. Correct or not the term "backfire" has been used for both forever.
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Old 09-20-2018, 09:21 AM   #25
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Wrong is still wrong, no matter the length of perpetuation.
One is generally relatively harmless if it only happens occasionally.
The other will almost always result in catastrophic engine failure the first time it happens.
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Old 09-20-2018, 12:32 PM   #26
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About as useless as Harley riders quotes. Loud pipes saves life’s. B. S. Gives our platform unwanted notice. Not to mention it sounds like crap
Depends on how you look at it. Remember Toyota have to give the Prius "artificial" noise so blind and text-while-walking zombies don't get hit. I personally see my exhaust noise as a safety feature. Thanks to my loud rumble, I've avoided couple near misses. The pop and crackles still not for me though..
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Old 09-20-2018, 02:27 PM   #27
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Dumbest trend in the automotive industry after stance.
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Old 09-20-2018, 02:29 PM   #28
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Quote:
Originally Posted by Tcoat View Post
Some are in the intake and some are in the exhaust. There is a different name for the exhaust ones but I don't remember what it is and most just call them all "backfires" anyway. Both are just explosions outside of the combustion chamber but the exhaust ones tend to be more spectacular. Sort of like burping versus farting.
So what you are saying is farting is more spectacular than burping? I knew I was right all along!
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