Afterfire vs. Backfire

Ok so this is an extremely common mistake that I see people making all the time. As in, I've only ever seen this done the right way around like 2 or 3 times.

Afterfire - An afterfire is when fuel is burned after the combustion chamber, often causing fire to shoot out of the exhaust. This is what most people are thinking of when they say backfire. It mostly happens in high performance cars, and is a result of un-burnt fuel entering the hot exhaust system. Some of the causes of this include a rich fuel mixture, anti-lag systems, and retarded ignition timing. For the most part, afterfires are safe, and usually just a sign of high-performance engines.

Backfire - A backfire is when fuel is burned while the intake valve is still open, causing it to fire back out the intake. This is something you don't want to happen.

If you want a more detailed explanation of afterfires, Engineering Explained has a video:


Shout-out to the devs for getting this the right way around in the update notes, it's one of the only times I've seen people get it right.

 

This is the most informative post I have ever seen , learned something new about a afterfire

 

I'm glad it helped