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wow that sounds awesome, love the flutter sounds from rally cars. I cannot belive how much that thing is flaming up, why is it doing that?
 

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wow that sounds awesome, love the flutter sounds from rally cars. I cannot belive how much that thing is flaming up, why is it doing that?
If it has been built for rallying and WRC type stuff then it is very likely because WRC type cars don't generally have dump valves, they use quite aggressive anti-lag systems, basically fuel and air gets dumped into the exhaust manifold and is permitted to ignite there, the idea being that it keeps the turbo spinning even when there is not much exhaust gas going through it.
 

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got to love rally cars.

thats an ice racing rally car they are limited to 2lt turbo engines a bit like the wrc cars.

the engine is moved back like that to help with handling and rear wheel drive to help flick it to the corners
 

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Discussion Starter · #11 ·
In short the flames are from the anti-lag system, whick works by keeping the engine at full WOT when the driver lets off the throttle, your basically getting the same amount of fuel & air but it cuts the spark, this ignites within the exhaust casing of the turbo to keep it spinning.

Its 'job' is to keep the engine at full boost even off throttle, so that the boost is there instantly.
 

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The anti lag system is operating when it pops.

The large blue flames when it's free wheeling may simply be down to the characteristics of the mapping.
 
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