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Views: 2,783  ·  Replies: 20 
> rx-7 misfiring system, did it have one too?
cornering specialist
  Posted: Jan 29 2003, 11:59 AM


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i dont understand keisuke asking his brother after hearing the bang bang sounding lancer of what it was. didnt he have it after all too? i see that yellow mazda couple of times spewing fire from the exhaust ! or was i wrong?
mr2drifter
Posted: Jan 29 2003, 01:15 PM


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That was merely backfire from his exhaust. Backfire happens when you have too much fuel going into the engine. Keisuke's car is amazing. However a misfiring system is nice, but it is bad for the engine. Every 500-1000 km, they have to have the motor rebuilt. The Anti-Lag system is nice if ur doing rally, but bad for canyon carving.
Gearhead
Posted: Jan 29 2003, 01:45 PM


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Yeah, that was just unburnt fuel being ignited in the exhaust. Rotaries in general tend to run hot.
I read about one FD where the exhaust was so hot, it set the grass where it was parked on fire. People thought the car was on fire.lol
karasac
Posted: Jan 29 2003, 04:00 PM


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ya, what those guys said
Tai-Mai-Shu
Posted: Jan 29 2003, 04:24 PM


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the misfiring system is there to save power loss from the turbo lag when coming out of a turn. Kyouchi (whoever that guy is) that drives the black EVO 3 has it because turbo doesn't need time to spool up when you exit the corner after a drift from loss of speed.

I THINK this is the reason considering what i learned. Rally racers tend to use it often and the RX-7 really doesn't need one. The RX-7 has twin turbos so it doesn't lag much. Plz , plz correct me if i'm wrong, i also have my doubts on what it is.

But as what others said, it's drawback is that it kills your system. Cars never last long with it, probubaly at max 500-1000km. They were only meant for competitive racing, so thats why everyone was so suprised at the fact that he got his hands on a misfiring system in the series.

blue_devil
Posted: Jan 29 2003, 04:59 PM


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Uhhhh.... twin turbos create more lag. That's why many owners of twin turbo vehicle switch to a single turbo setup.
S13 Driver
Posted: Jan 29 2003, 06:30 PM


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QUOTE (blue_devil @ Jan 29 2003, 04:56 PM)
Uhhhh.... twin turbos create more lag. That's why many owners of twin turbo vehicle switch to a single turbo setup.

Two smaller turbos have less lag than a single big turbo....
mr2drifter
Posted: Jan 29 2003, 08:30 PM


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Twin turbo actually has no or little lag. What happens is one of the turbos spool up, it then pushes the air through the engine. Then the second turbo is there to push the rest of the air through. It still has a slower response time when it comes to cornering, but the lag when accelerating isn't noticable.
cornering specialist
  Posted: Jan 29 2003, 10:18 PM


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well how many cars did have that spark like the rx-7 in the movie? of course not the lancer that truly had the misfiring system. i just dont remember. anyway, these discussions are very informative to me. happy.gif
mr2drifter
Posted: Jan 29 2003, 10:42 PM


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QUOTE
well how many cars did have that spark like the rx-7 in the movie?


THE SW20 MR2. WHOO!

QUOTE
anyway, these discussions are very informative to me.


Ask Questions, we are here to help!
karasac
Posted: Jan 29 2003, 11:50 PM


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QUOTE (blue_devil @ Jan 29 2003, 04:56 PM)
Uhhhh.... twin turbos create more lag. That's why many owners of twin turbo vehicle switch to a single turbo setup.

people switch to single turbo because u can get more power out of a single turbo
]{aya
Posted: Jan 30 2003, 07:33 AM


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QUOTE (blue_devil @ Jan 29 2003, 04:56 PM)
Uhhhh.... twin turbos create more lag. That's why many owners of twin turbo vehicle switch to a single turbo setup.

????, youre not well informed : twin turbo is one of the best solutions to virtually eliminate turbo lag ...in terms of equipment...it cost less then a misfiring system
Tai-Mai-Shu
Posted: Jan 30 2003, 12:35 PM


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QUOTE (cornering specialist @ Jan 29 2003, 10:15 PM)
well how many cars did have that spark like the rx-7 in the movie? of course not the lancer that truly had the misfiring system.  i just dont remember.   anyway, these discussions  are very informative to me. happy.gif

well...take a look at this.

Something the others might use to get power.

The other sparks could either be excess heating, or this rev limiter. I dunno, maybe it's to look cool? I dunno, someone else help me with this information?

Just cuz it has a spark doesn't mean it's a misfiring system. I know that.

]{aya
Posted: Jan 30 2003, 01:20 PM


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i pretty sure its backfire ...you can make it hapen by de-timing your exhaust so it accumulates "gas"...when its hot enough, it goes boom tongue.gif

note: thats not so good for the exhaust system thought

note 2 : Nakazato's skyline had backfire

Initial Dick
Posted: Jan 30 2003, 01:42 PM


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Agree with ]{aya here, it is more like backfire than anything else. My faulty memory also recalls that the misfiring system in Seiji's car has that rapid, consecutive bang-bang-bang sound, whilst on the other cars, you just get the 'whoosh' of flame.

In my opinion, within the strict context of the anime, I think they just put it there because it looks (and sounds) cool and gives an impression that these are highly tuned street machines meaning business.
mr2drifter
Posted: Jan 30 2003, 02:33 PM


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QUOTE
In my opinion, within the strict context of the anime, I think they just put it there because it looks (and sounds) cool and gives an impression that these are highly tuned street machines meaning business.


Words taken out of my mouth.
Sugoi Kuruma
Posted: Jan 31 2003, 06:50 AM


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yes the other cars in initial d with flames coming out the back ARE BACKFIRING, same as the RX7

rotaries just tend to do it more than other cars, simply because rotary engines use so much fuel, and when its unburnt it goes BOOM, if theres enough of it

i remember cruising in my friends RX2 (this one was a 12a non turbo, although he has a turbo one now) with his old exhaust, he used to get HUGE backfires, im talking massive, and coz the exhaust pointed towards the ground, when we cruised in the hills at night, u would see the flames spew out and hit the ground, it was awesome

once he got his new exhaust though, it didnt pop as much (btw he got a new exhaust because he managed to POP a huge hole in the old one, lol, once he F**ked it, the sheer NOISE from the car was incredible!)

was kewl though, once he got used to it he could do it on demand, was good for scaring old grannies, and chicks smile.gif not too good around the cops though biggrin.gif
J4P RX
Posted: Jan 31 2003, 10:26 AM


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Yeah, my FD pops and bangs all the time. Gets lots of attention laugh.gif happy.gif

Lee
Jayson
Posted: Jan 31 2003, 12:58 PM


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A misfiring system becomes active when you take your foot of the gas. thats why you hear the 'bang bang' when he's entering a corner, he's taken his foot off the gas and is starting to slow down. The pressure from the back fire keeps the turbo spooled up, so when he jumps back on the gas there is no lag and he is close to, if not at max boost.

I'm sure you guys know this, just wanted to let everyone know for those who didn't though. happy.gif
]{aya
Posted: Jan 31 2003, 01:58 PM


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what jayson said ...but i feel that we are only repeating ourselves
Jayson
Posted: Jan 31 2003, 11:06 PM


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What ]{aya said happy.gif