what is the use of back fire?
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hi...car Enthusiastic......i was watching INITIAL-D and there was this part where Takumi race with a EVO 3.i wan to ask if anyone knows wat is the main function for hte evo's backfire. i have seen this in rallys b4.but wat is the main purpose and also does anywan know wat are the advantage of using rotary engine used in mazda rx-7???thanks.....
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eh .. i think is to clear carbon ... is called misfiring ... my cousin have that also .. is to clear excess oil esp for performance car which pumps great amount of oilOriginally posted by eyewitness:hi...car Enthusiastic......i was watching INITIAL-D and there was this part where Takumi race with a EVO 3.i wan to ask if anyone knows wat is the main function for hte evo's backfire. i have seen this in rallys b4.but wat is the main purpose and also does anywan know wat are the advantage of using rotary engine used in mazda rx-7???thanks.....
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to clear carbon lor...once in a long time do it can...but cannot cos of show off do it....will spoil ur bike/car de...
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It is for burning the bumpers of people who like to tailgate
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the real term of it that is used in the EVO III is he is using turbo anti lag system...throw excess carbon out also...Originally posted by eyewitness:hi...car Enthusiastic......i was watching INITIAL-D and there was this part where Takumi race with a EVO 3.i wan to ask if anyone knows wat is the main function for hte evo's backfire. i have seen this in rallys b4.but wat is the main purpose and also does anywan know wat are the advantage of using rotary engine used in mazda rx-7???thanks.....
hmmm...brother..brother...so far i think only mazda have rotaries...The RX series...from RX 2 all the way to RX 8...its just something like their racing trademark. plus rotary i think have lower torque but high power and their fuel consumption aint good either...if u have enuff money to buy rx7 then i guess u will die of the petrol consumption...its abt 5-6km/l. if u modded even more...speaking abt advantages...hmmm cant really say...not used on all cars...only on mazda RX series...so...u cant say u want a toyota to have a rotary..hahaha unless it happens then we can compare why is it good to have a rotary. all i know abt rotary that ive been told by someone who owns a RX-7 efini...he said they have no pistons only using vacuum power...and yes... RX-7 is faster then RX-8 due to its turbo...hehehe -
so the does the misfiring system spoil the car?
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huh? which oil bro? And what pump?Originally posted by johncooper:eh .. i think is to clear carbon ... is called misfiring ... my cousin have that also .. is to clear excess oil esp for performance car which pumps great amount of oil
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U may read more on anti lag systems here. It used for turbo cars. Cheers.
http://www.rallycars.com/Cars/bangbang.htmlOriginally posted by ChengYong:so the does the misfiring system spoil the car? -
Backfire is either deliberate or not. I have come across cars that installed flame thrower to emulate extreme backfire. That is cool but dangrous. Can use it for bbq at times.
Here's my share of explanation. Its not about clearing carbon or oil!
What causes Backfiring really?
More often than not, backfire occurs when a driver downshifts and throttle. This is caused by a lean condition. What happens is that the air fuel mixture leans out enough to where is fails to ignite consistently. This, in turn allows some un-burnt fuel to get into the exhaust pipes. Then when the engine does fire, these unburnt gases are ignited in the exhaust pipe, causing the backfire.
As for Rotary Engines, here's the link for the most detailed explanation.
http://travel.howstuffworks.com/rotary-engine2.htmOriginally posted by eyewitness:hi...car Enthusiastic......i was watching INITIAL-D and there was this part where Takumi race with a EVO 3.i wan to ask if anyone knows wat is the main function for hte evo's backfire. i have seen this in rallys b4.but wat is the main purpose and also does anywan know wat are the advantage of using rotary engine used in mazda rx-7???thanks..... -
backfire systems installed in a car like the WRC cars are meant to act as a turbo anti-lag system. basically what it does is to create a combustion at the exhaust, which draws air along the exhaust pipe, in order to prevent a backflow of air which would slow down the turbo n cause turbo lag as it takes time to spool up again.
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spoils the turbo inevitably... your exhaust manifold is gonna suffer too...Originally posted by ChengYong:so the does the misfiring system spoil the car? -
wow, thats a good one...Originally posted by johncooper:eh .. i think is to clear carbon ... -
If you're only talking about Initial D then i've got nothing to say, but to add on - Porsche also uses Rotary Engines.Originally posted by KhidMasAE86:the real term of it that is used in the EVO III is he is using turbo anti lag system...throw excess carbon out also...
hmmm...brother..brother...so far i think only mazda have rotaries...The RX series...from RX 2 all the way to RX 8...its just something like their racing trademark. plus rotary i think have lower torque but high power and their fuel consumption aint good either...if u have enuff money to buy rx7 then i guess u will die of the petrol consumption...its abt 5-6km/l. if u modded even more...speaking abt advantages...hmmm cant really say...not used on all cars...only on mazda RX series...so...u cant say u want a toyota to have a rotary..hahaha unless it happens then we can compare why is it good to have a rotary. all i know abt rotary that ive been told by someone who owns a RX-7 efini...he said they have no pistons only using vacuum power...and yes... RX-7 is faster then RX-8 due to its turbo...hehehe -
Really? Thought Porsche used boxer engines??Originally posted by M©+square:If you're only talking about Initial D then i've got nothing to say, but to add on - Porsche also uses Rotary Engines. -
oh really ah??? i dont know...i tot boxer engines...Originally posted by M©+square:If you're only talking about Initial D then i've got nothing to say, but to add on - Porsche also uses Rotary Engines. -
Eh i may be wrong.Originally posted by KhidMasAE86:oh really ah??? i dont know...i tot boxer engines...
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Hmmmm
I know of Mazda always using Rotary...
and Nissan Silvia S11 have rotary too... -
You thot right... the change for the porsche boxer engines (i believe around 1997-Originally posted by DoggieHowser:Really? Thought Porsche used boxer engines??
was from air-cooled to water-cooled which loses the porsche's boxer engine's its distinctive sound. -
Err, as far as I know, all the S10/11/12s had 4 cylinder engines. S12 introduced the turbocharged engines, and the rest as they say is history.Originally posted by DaKaR:Hmmmm
I know of Mazda always using Rotary...
and Nissan Silvia S11 have rotary too... -
hm.... then to prevent anti-lag the driver basically must keep his foot on the acclerator while cornering right? is this so that the driver can easily pick up his speed when he exits a corner?
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This is getting painful. The ALS does not "throw" or pump out excess carbon or oil from the engine. Its a deliberate solution installed in turbo-charged race cars to prevent turbo-lag and keep the turbo spinning. If you have sat in a stock turbo-charged car, you will notice a significant surge after the engines have reached a certain rpm. Before reaching that rpm, the turbo is not generating enough boost...Originally posted by bmw_lover:hm.... then to prevent anti-lag the driver basically must keep his foot on the acclerator while cornering right? is this so that the driver can easily pick up his speed when he exits a corner?
The ALS "wakes up" the turbo by igniting the air fuel mixture even tho the car is off-throttle. This will keep the turbine spinning and hence when the driver applies gas, its takes less time for the turbo to generate boost (in other words, reduce lag time).
To answer your qn bmw_lover (you really mean "to prevent turbo lag" not anti-lag) keeping your right foot down whilst accelerating around a corner is not always a good idea, anyone will tell you that. What you can do is "left foot braking", which is to accelerate(with your right foot) and brake (with your left foot unless you have more than 2 feet) at the same time. The accelerating will keep the turbo spinning whilst the braking... well, you know what it does. Try this at your own expense (meaning leave guardrails and other humans out of your madness), btw it might boil your brake fluids too... but if you are nuts enough to do it then... you have bigger probs than just boiling brake fluids.
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Left foot braking? From the expert, Giles Panizzi...
http://www.mitsubishi-motors.com/motorsports/j/04wrc/panizzi/panizzi_movies.html -
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S110 SILVIA AND 180SX
Enter the 180SX! The S110's entrance in 1979 saw the first release of the 180SX otherwise known as the hatchback version of the Silvia. Following suite with the fairlady's, the 180sx was named after the capacity of the engine (1.8L).
The S110 was powered by several engines - one was a 1952cc 4 cylinder producing 89kW as well as a 1770cc (presumably for the 180SX?) 4 cylinder engine yielding 68kW at 5800rpm and 139Nm at 3600rpm. Nissan also apparently experimented briefly with a rotary engine (supposively something similar in design to the Mazda 10A rotary) in the S110, but it was short lived as most Silvia's continued to be fitted with the conventional 1770cc engine.