Originally Posted by
fraser9764
the thing i dont understand is why a cossie would ever have one fitted?
the amal valve does a perfectly good job, and if you want to increase your boost, with a bleed valve or not, it is going to need to be mapped again, so why not map it with the amal valve?
Might beg the question, why fit air injectors ?
Originally Posted by
big_wig_074
amal valves can fail,bleed valve is not electrical so the only thing that can happen is that it is turned somehow,so get a lockable one.
i fail to see how its any different from a massively expensive electric boost control module
What cant you see is different ? One is a simple adjustable orifice to bleed air, regardless of anything else.
The other can be a totally adjustable air bleed at any rpm, boost level, throttle, road speed....whatever way you want to map it.
Ultimately they are both simply air leaks. But it can be a little more complicated than that