dump valve

[Dynamo150]

I just got my first turbo and now appreciate what turbo lag is like

I see mentions on here of dump valves and assume this is to release pressure and allow the turbo to keep spinning

My question is: Although I assume this helps with faster acceleration, does the driveability of the car get better. In that the power is more constant, making it easier to drive normally. Or do you have to be "on it" all the time for these valves to work?

 

[Tris Harris]

in some cases you may find that you actually lose power through having a dump valve, hence why fiat fitted a recirculation valve to their T-jet engines.