MidnightDreamer

Can someone explain to me the technicals of a misfiring system? I don't understand how it works, and moreso how it makes a car run faster or better. The misfiring system was featured on Initial D, an anime that focuses on street racing.

Mach 1

Can you be more specific? A misfire is usually a bad thing, and hurts performance, so what in the hell are you talking about?

UCSBgeek

In this case, it doesn't hurt performance, but rather helps stave off turbo lag...of course, yes, it will eventually cost your engine...

http://www.northarc.com/~edkwon/turbo.html

Google is your friend

Mach 1...no need to word yourself like that... if you don't know what he's talking about, either.

Mach 1

Word myself? I dont know what hes talking about so I asked him. Is there something wrong with that?

ZoomZoomH

For those that are too lazy to click on the link, here's what that page says about misfiring system:

MISFIRING SYSTEM

aka 'ALS = Anti Lag System', aka 'Bang bang' system

Another solution to turbo lag is known as the misfiring system shown in Sudou's Lancer Evolution III. This is not a normal feature on street cars and is a system usually used in race cars only, particularly turbocharged rally cars. As explained before, turbo systems can suffer from lag effect, especially when the driver lifts his foot off the gas to make a turn. This generates less power which in turn generates less exhaust gas and lowers the pressure needed to drive the turbine. When the turbine looses this pressure it slows down and needs time to spin up again, which creates lag in power. The ALS prevents this by sensing when the driver lifts his foot off the gas/throttle and injects fuel directly into the exhaust system itself. This fuel then detonates creating a mini-explosion in the exhaust manifold and the force of the explosion is enough to maintain boost pressure needed to keep the turbo up to speed even when the car is slowing down. This virtually eliminates all turbo lag and maxmizes power for a car after it brakes and comes out of a turn. These systems are not legal on street cars and due to the constant fuel detonations, eventually destroys a turbo and exhaust system every 500-1000 km in race cars, and likely faster in street cars.

UCSBgeek

You could have left out, "so what in the hell are you talking about?"

Mach 1

Well, Excuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuse me.

Ill try to make my replys more to your liking from now on. Not!

UCSBgeek

Well, some people have been complaining about the negative attitudes in a lot of the posts on Protegeclub lately. I don't care as much, but it would be nice if you would try to be considerate.

pr5owner

misfireing systems are usually equipt on rally cars IE: pikes peak Escudo. instead of igniting the gas injected into the cyl. the spark plug doesn't fire and the gas gets pushed into the turbo manifold and since the manifold is HOT the gas gets ignited inthe turbo. this gives you full boost at idle but your turbo won't last longer than maybe 2 runs up the hill.

Mach 1

What part of my post was inconsiderate? Did the word "hell" offend you?

Im afraid I dont follow you. Could you explain exactly what was inconsiderate about anything I said?

Maybe you just misinterpreted it.

UCSBgeek

Well, I'm dyslexic, so, you're right, maybe I'm misinterpreting you. I'll just leave it at that.

Mark_02DX

Hmm. I always thought a "misfiring system" was one of the early GM HEI distributors.

Sounds like a good way to be really cruel to an exhaust manifold.

Mach 1

No, those were the 1978 Chysler "electronic spark" systems..