I was wondering, how do u make flames come out of your exhaust? I always wonder that and I dont know how it works!

 

Run really hot and really rich.

If you look at the Comptech supercharged NSX that runs in SCCA/Speed World Challenge, it always shoots flames on downshifts. This is an anti-detonation feature that's been tuned into its engine management so it dumps a bunch of fuel in to cool down the cylinders.

 

on turbo vehicles, it is more commom on MAF equipped vehicles if they utilize atmospheric blow-off valves. since the MAF meters air entering the engine, when the blow-off valve releases that pressure to the ambient air during a shift...it causes an extremely rich situation.

basically the engine thinks its getting more air than it really is.

ie. like fatbooty said, running rich is the main reason.

ive also heard of h22a motors spitting flame with the CAT removed...probably because of the overlap present at high rpm's.

~boom

 

or you can get a flame shooter kit :rick: h:

 

you wont shoot flames with a cat on

 

Some engine management systems have an anti-lag feature for turbochargers that change spark timing with the clutch depressed. I've even seen a setup have an extra injector and spark plug built into the exhaust manifold to ignite fuel and unburnt air to keep the turbo spinning (much like a turbine engine) between shifts.

 

Anti-lags are harsh as hell on the exhuast turbine of turbo tho. But at any rate, too much timing retard and too much fuel will give you some nice flame action.

 

What happened to the good old honda-tech where we'd flame this guy for pages being a ricer.

All this helpful concise info, in a helpful tone, I'm beginning to feel my place is elsewhere!
-PHiZ

 

Easy answer, this isn't Honda-Tech.

We're also less tolerant of strange off topic posts.

 

I'd like to blame that one on me being sick, but no I'm just a dumbass.
-PHiZ