Exhaust flames

[skyline33]

I've seen a few cars with flames popping out of the exhaust while changing gears looks pretty cool, how could this be done???

[meggala]

remove the cat

[skyline33]

is there anything legal that can be done

[Roy]

How about a Microtech microfueler and a 5th injector in the exhaust;)

Then at night you can do fuel dumps ala F-111 at the Grand Prix.

[skyline33]

well that does sound a bit excessive!!!

[MrMayhem]

no cat atmo venting bov

[DLuded]

not 100% sure if this is right but didnt someone used to sell a kit for this. it would be a waste of money and im sure its illegal

[akeenan]

how could this be done???

i posted a thread about how to do this a while ago i read somewhere, someone had a spark plug on the inside of their exhaust with a hose leaking fuel on demand

fuel + spark =:flamed:

pretty gau i think however

[Hicks]

That sounds like a pretty stupid way of doing it.

Would love the fast and the furious look though, at the start of a run down the plex. Would look f#ckin sweet.

[GTS-t VSPEC]

Flames popping out the exhaust is most likely due to an external wastegate that is dumped back into the exhaust system. You will need to remove the cat for this though.

Another option is to run rotational idle, this will give you a small fire popping out of the exhaust, you are unlikely to get any huge flames from the back unless you do something stupid, which I don't recommend.

See'ya:burnout:

[Hicks]

Have the external waste gate pointing to the road I say. Shoot the flames onto the bitumen.

[GTS-t VSPEC]

Hicks that is the preferred way, but it is highly illegal, so dumping through the exhaust is considered better, and the noise is muffled somewhat.

See'ya:burnout:

[Hicks]

Paul, give me your advice. I need a turbo, new manifold or keep it standard. Would like an external wastegate but the money to make a manifold is quite heavy. Unless you know someone??

Or could get some sort of drawing plan for some, cause i could quite easily do all the fabricating but I need a plan.

[GTS-t VSPEC]

Hicks,

the best turbos are all external wastegate design, but these are for high horsepower. If you just want good power then you can go for a GT2835 (internal wastegate) , which will give you lots of power without the lag. I would still recommend a custom exhaust manifold, the original is very poorly designed.

If you a good with mild steel welding then I could get you a jig, which is a template to build manifolds, this would make it easy for you to build your own.

See'ya:burnout:

[MetBlue_GTST]

Removing cat is highly illegal and will lead to $10,000 (or there abouts, could have been $5,000, can't remember) fines if caught... Flamage is from anti-lag, not rotational idle as discussed in rotational idle thread...

In the old days an extra injector used to be fitted to the exhaust manifold and fired when anti-lag was needed... Now-a-days the ECU controls it all...

[StraightSix]

The computer measures the airflow at the beginning of the intake tract (assuming you're using a MAF system) and injects fuel accordingly. So when you shift and let off the gas, your turbo is still spinning and the excess air is vented through the blow-off valve. However the computer doesn't know that that air isn't going into the combustion chamber, so while the blow-off valve is going the mixture in the combustion chamber is very rich, thus letting a lot of unburned fuel into the exhaust, where it gets ignited by the hot turbine wheel. Hence flames on shifting.

J

[Hicks]

Originally posted by GTS-t VSPEC

Hicks,

the best turbos are all external wastegate design, but these are for high horsepower. If you just want good power then you can go for a GT2835 (internal wastegate) , which will give you lots of power without the lag. I would still recommend a custom exhaust manifold, the original is very poorly designed.

If you a good with mild steel welding then I could get you a jig, which is a template to build manifolds, this would make it easy for you to build your own.

See'ya:burnout:

I could weld it up piece of piss, A monkey can weld mild steel.

Where would you get a jig from? Would they let you have one?

[fatz]

gtr no cat= flame central

[MIKGTR]

Too easy in my car

Step one: change fuel map to +30% rich

step Two: lower rev limit to 4000

step three: flat change at 3900rpm

result: fireball + mushroom cloud

scares the shyt out of tailgaters & pedestrians:D

[skyline33]

Originally posted by MIKGTR

Too easy in my car 

Step one: change fuel map to +30% rich

step Two: lower rev limit to 4000

step three: flat change at 3900rpm

result: fireball + mushroom cloud

scares the shyt out of tailgaters & pedestrians:D

is that through a safc, or what