C Colm Mc Sunday Drivers Sep 15, 2009 #1 Well, I know what a dump valve is and what it does, but does fitting an aftermarket one offer any performance benefit?
Well, I know what a dump valve is and what it does, but does fitting an aftermarket one offer any performance benefit?
Altezza-Dan Octane Boostaholics Sep 15, 2009 #4 well some can hold boost better than factory plastic ones
Y Yogi Petrolheads Sep 15, 2009 #5 Better off with a standard re-circ one. Regular dump valves just make noise and can actually reduce performance as it dumps more than a re-circ, so the turbo has to spool more to build the pressure back up.
Better off with a standard re-circ one. Regular dump valves just make noise and can actually reduce performance as it dumps more than a re-circ, so the turbo has to spool more to build the pressure back up.
C carlee Petrolheads Sep 15, 2009 #7 [quote author=forester sti link=topic=18022.msg220925#msg220925 date=1253026680] As above, just makes a noise! Dan [/quote but wot a lovely noise it is..
[quote author=forester sti link=topic=18022.msg220925#msg220925 date=1253026680] As above, just makes a noise! Dan [/quote but wot a lovely noise it is..