Anyone running an aftermarket Misfire system
#6
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I think they call anti-lag a "misfiring system" in initial-d. Takumi blew his original engine racing a guy who had one on his Evo.
Maybe that's just what they call it in Japan?
It would get really expensive replacing the turbo every week.
Basically it tries to keep the turbo spooled when you are off the throttle, I think it works by burning fuel in the exhaust manifold. Sometimes it is done strictly with engine management (keep spraying fuel off throttle, and very late spark) and others with special equipment installed in the exhaust manifold.
Maybe that's just what they call it in Japan?
It would get really expensive replacing the turbo every week.
Basically it tries to keep the turbo spooled when you are off the throttle, I think it works by burning fuel in the exhaust manifold. Sometimes it is done strictly with engine management (keep spraying fuel off throttle, and very late spark) and others with special equipment installed in the exhaust manifold.
Last edited by Mechazawa; 09-02-2007 at 06:33 PM. Reason: added an explanation
#9
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http://www.grid.co.jp/en/list/40_01.html
just found this. not what i had originially found but same thing.
just found this. not what i had originially found but same thing.
#11
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It very specifically is injecting more fuel into the exhaust manifold causing the gas inside the manifold to expand keeping the turbo spun up. Alternatively people may be confusing it with something like the Bee Rev Limiter as both are about equally destructive to a Catalytic Converter which uses Spark pulling instead of fuel pulling for a rev limit.
Bottom line..both cause flames out your tailpipe and only one is some what preservative modification for your engine...the other (being a ALS or MisFire) is very very destructive..probably won't do much to the manifold but boy will it make hell of the turbo.
Bottom line..both cause flames out your tailpipe and only one is some what preservative modification for your engine...the other (being a ALS or MisFire) is very very destructive..probably won't do much to the manifold but boy will it make hell of the turbo.
#16
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Pirate Tim...is there any particular reason you are trying to keep boost up? I mean..do you already have turbo and just find that you need the power the moment you hit the pedal out of a turn or something?
Generally i think it's concerns of "responsiveness" that people lean towards N/A or super charged setups. The only other thing you could really consider is getting yourself ITBs with turbo and having a really small turbo at that.
There's really nothing else out there for you, outside of causing additional explosions in your exhaust there's nothing to keep you in spool, other than some nice throttle modulation. If you haven't turbo'd yet. Consider going M.S. control of things like spark pull for rev limit and flat shifting should help with keeping the turbo spooled. Otherwise, you look to be pretty out of luck. unless you wanted to do something wacky like a twin turbo setup and find some method by which you would keep a turbo semi-constantly spooled even if the waste gate is open so that when you drop out of power from the second turbo the first doesn't have to spool up.
Generally i think it's concerns of "responsiveness" that people lean towards N/A or super charged setups. The only other thing you could really consider is getting yourself ITBs with turbo and having a really small turbo at that.
There's really nothing else out there for you, outside of causing additional explosions in your exhaust there's nothing to keep you in spool, other than some nice throttle modulation. If you haven't turbo'd yet. Consider going M.S. control of things like spark pull for rev limit and flat shifting should help with keeping the turbo spooled. Otherwise, you look to be pretty out of luck. unless you wanted to do something wacky like a twin turbo setup and find some method by which you would keep a turbo semi-constantly spooled even if the waste gate is open so that when you drop out of power from the second turbo the first doesn't have to spool up.
#17
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I wonder if anyone has tried using water injection into the exhaust manifold. Upon injection, the water would immediately turn to steam and expand tremendously. OTOH, the reduction in temperature could completely counteract this effect.
#18
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Retard the hell out of your ignition timing and your turbo will spool like made. I have a 2-step rev-limiter that pulls the timing back to -17deg (if need be) to keep the rpm at 5000 for launches. It'll do that at 2000 if you really wanted to. Full boost at 2000. It's hell on the head/valves but yuo go like hell. I don't even have to release the throttle for shifts since the 2-step is clutch activated. I figure I'll be blowing a trans or rear-end soon.
"misfire system" = rev-limiter ??
"misfire system" = rev-limiter ??
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After Max Evas post, i started thinking real hard about a mechanical antilag system and the idea of somehow using inertia to our favor came to mind. I think it would be neat if somehow a dual turbine setup could be used where there is one turbine that acts as normal and another one that is designed to be slightly heavier and carry energy through a shift via a clutch system that is vac/boost controlled (I.e. clutch engages at atmospheric pressure).
Anyway its probably a dumb idea so flamesuit on.
Anyway its probably a dumb idea so flamesuit on.