[silver]

Originally posted by oc civic
shows what i know.. i always thought that it released pressure in between shifts... which i would think is pretty important?

but i really dont knwo dick about turbo.. so how abotu you fill me in..

a bov releasing the built up exhaust gas that would otherwise create backpressure and slow down the turbines of the turbo. An externally vented bov, which everyone is referring to, will cause your vehicle to run rich. After your airflow is measured by the maf, you then lose air due to the bov, therebye causing your vehicle to overcompensate in fuel causing a rich mixture. Have you ever seen a civic w/ turbo shift, here the bov, and see a little plume of smoke come out of the exhaust, that is why. A by-pass valve prevents this by venting the air back into the intake. The biggest gain that a bov will give is that it keeps you from leaking boost.

A turbo timer does not cool down a car, the car cools down the car. How intelligent is it to walk away from your car...while it is running? In order to cool down a turbo the best way is to drive it easy for the last while of your trip if you were driving hard earlier. Sitting and idling actually does not do much good for cooling off turbos(which is what your turbo timer will do), there is no movement of air.