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Joined: Oct 2003
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Clos
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Clos May 8, 6:58pm - #174477 
2000 Spectra Blue Toyota Celica
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2000 Toyota Celica

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Alexandria, VA
Initial D

does any one here watch Inital D? if you guys do...did you guys watch wen he was going against the Evo? and the Evo keepd on making fire come out the exhaust, does any one know how to do this, wat is needed, or is it posible in our cars?
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Clos
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Clos May 8, 6:59pm - #174478 
2000 Spectra Blue Toyota Celica
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2000 Toyota Celica

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Alexandria, VA
i think they called it miss firering system or something like that
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NorwayGT
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NorwayGT May 8, 7:02pm - #174479 

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2004 Dodge SRT4

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Seattle, WA
rice

was....5speed with i/h/e
15.41 @ 89.30mph 2.282 60'

is....04 srt4 stock
13.936 100.15mph 2.177 60'
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Whatitdo
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Whatitdo May 8, 7:09pm - #174480 
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2002 Honda Civic Si

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My lugnuts require more torque than my Honda produces.
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RacerX225
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RacerX225 May 8, 7:18pm - #174481 
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1989 GMC 1500 pickup

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CA, Nor*cal
Yeah, Bee*R sells it.

"Champions train, losers complain."




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mastro543
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mastro543 May 8, 7:57pm - #174482 

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2001 Toyota Celica

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Originally Posted by NorwayGT
rice

Boost In March.
[Linked Image]
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celicafourotwo
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celicafourotwo May 8, 9:11pm - #174483 

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2000 Toyota Celica

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Nebraska
Flame thrower??

Originally Posted by pesho01
Question:
Whenever my car is at a full stop or even in park the RPM never sits on 0. what does this mean?
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initial_D
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initial_D May 8, 9:16pm - #174484 

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2000 Toyota Celica

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Westminster, CA
yeap it's a misfiring system, it's used to basically get rid of Turbo lag, so when you release the trottle it fires and keeps the Turbo spooling...but on the streets it's called illegal and for the most part people that have them on are rice because they just get it for the fast and furious effect
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Rave669
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Rave669 May 8, 11:40pm - #174485 

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2002 Toyota Celica

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Posts: 522
Lisle, IL
Okay... TIme to clear this up guys. I know what you're talking about. there are TWO ways this happens.

one is called a cherry bomb, old street rods use these for show, they consist of a coil and spark plug. the spark plug is installed about 3 inches from the exhaust exit. the coil is wired into the electrical system, put on a switch, and the spark plug is wired to the coil.

When the switch is flipped, the plug sparks up and ignites the unburnt fumes in the exhaust, you can get flames up to 2-3 feet long on a system like this, but they are illegal on street cars, unless of course, your car is an old street-rod that predates the applicable laws. (in other words, if you have an old lead-sled or duece street rod, you can probably get away with it)

The other method (the one in initial D) is a boost retard backfire. the way it works is this:

Turbos spool and build up lots of heat (they can glow cherry red if they get hot enough) you still have unburnt fuel in the exhaust gas. When the tranny is shifted, you let off the gas, the revs jump for a second, and as the Turbo slows down, the heat from the Turbo itself is usually enough to ignite the unburnt fuel, which results in a POP and a small flame erupts from the exhaust tip (it's much like the pop you get from a car w/aftermarket exhaust installed, only the Turbo is so hot, it ignites the exhaust gasses and you get a flame too)

Some Turbo cars, if tuned enough, will do this on their own, no add on's are needed, but you can buy a JDM timing retard module for Turboed cars that will cause this flame to happen at shifts regardless. It's generally not looked on as a good thing, and could be a sign that the car is improperly tuned. Of course, it could also mean that the Turbo is pushing a lot of PSI, you have a big blow off valve and you have tuned the car to run a bit richer. it doesn't keep the Turbo spooled up, rather, it could be a sign that the Turbo is running too hot, and that's not a good thing.

While it's the sign of a heavily tuned car, that backfire can do some bad things too (like break the blades in the turbine housing, or pop open the exhaust side of the Turbo itself)

It's illegal on many cars, but if it occurs after some heavy tuning by accident, it's definitely not a bad thing. As long as you know WHY this happens, you will be able to know whether it's a good or bad thing on your perticular application.

[Linked Image]
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Whatitdo
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Whatitdo May 9, 12:16am - #174486 
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2002 Honda Civic Si

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Just read the link I posted. It explains the misfiring system. Some of what you guys are saying is wrong.

My lugnuts require more torque than my Honda produces.
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Clos
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Clos May 9, 4:05am - #174487 
2000 Spectra Blue Toyota Celica
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2000 Toyota Celica

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Alexandria, VA
hahahha its all good i just saw a Silvia doing it on the way back home. that shit was tite
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vietnamese2004
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vietnamese2004 May 9, 8:24am - #174488 

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2003 Toyota Celica

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Canada - B.C - Vancouver
sound pretty cool to me, and it get rid of Turbo lag...
i drove my cuzin's 1.8 T (jetta) and i hate the lag...
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RacerX225
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RacerX225 May 9, 5:27pm - #174489 
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1989 GMC 1500 pickup

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CA, Nor*cal
Originally Posted by vietnamese2004
sound pretty cool to me, and it get rid of Turbo lag...
i drove my cuzin's 1.8 T (jetta) and i hate the lag...


Stock Turbo lagging? Isnt that bad?

"Champions train, losers complain."




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Rexy13
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Rexy13 May 10, 12:58am - #174490 
2004 Red Toyota Celica
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2004 Toyota Celica

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York PA
in the books it is explained that it is an ignition system used by rally cars to keep the Turbos spooled up.
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Rave669
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Rave669 May 11, 11:20pm - #174491 

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2002 Toyota Celica

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Lisle, IL
Yes, it's true, if the ignition of exhaust gasses is timed properly, it can keep the Turbo spinning, but you need to remember, a Turbocharger is not an internal combustion engine, it's meant to compress air and shove it down the Intake, not withstand explosions in the exhaust housing. you will eventually break the turbine, especially if it's running hot when it occurs.

Race cars can get away with it, they aren't daily drivers, and stuff breaks on racecars all the time, most people don't tear-down and rebuild their daily drivers on a daily basis.

You ever see a show called "Junkyard Wars"?
There was an episode where the challenge was for the teams to build a jetcar, and race it.

One team built a pulse jet engine from surplus, it was reliable, and worked pretty good. the other team, on the other hand, opted to build a Turbo-jet powered car. They used a larger, automotive Turbocharger as the core of their engine. A Turbo Jet operates on a similar principle to the misfire system, only air/fuel mixture is burnt and the resulting reaction is forced through a turbine to create thrust (sound familiar?) Well guess what... The Turbocharger eventually suffered a major meltdown, the turbine blades shattered and needless to say, they lost the race (also of note, they thought it would hold up to the heat and stress... it didn't.)

There's a reason most racing organizations don't allow this method for reducing Turbo-lag. it's tricky, loud as hell, not to mention dangerous!

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