just some cool idling
- Thread starter Silviafan
- Start date
Silviafan
Member
Yeah .
mad.matt
Well-Known Member
"Rotational idle has more to do with quickly cooling the engine as running a car with antilag causes very high temps to be achieved when antilag is on. When rotational idle is running the fuel mixture is much richer than needed to maintain a normal idle. This extra fuelling brings down temps quickly and rotationally dropping ignition of cylinders also further reduces temps as the fuel mixture is not burned but just pumped out of the engine unburnt. "
Just a quick google, apparently quite common for Evo and Scooby guys to do it for "rally swag lols"
Stavros
Active Member
That's the big problem with Google, it finds everything, most of it total bollocks. And then people tell others that too.
Rotational idle NEVER runs a rich mixture, in fact it cuts the fuel totally.
No fuel, no combustion at all, ie just air, cools things a fuck sight more than a rich mixture.
Rotational idle basically cuts fuel to 1 cyl per revolution, different ones each time, sometimes random, sometimes a cycle, ie 1-2-3-4-1-2-3-4 depending on the setup.
It's to quickly cool an engine after a mega hard run, especially good with anti-lag, and also helps keep the revs down on engines that use a jacked open throttle for ALS.
Pretty much never heard it on anything but full on race/rally cars in the UK, dunno about other countries, but here it's not done for 'lols' as no cunts ever heard of it, and needs a decent ECU to do it.