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should I fit a damper valve to my 172?



  ST
Do you meant a dump valve mate? As in a to release excess pressure from a turbo charger?

Without a dump valve, when the throttle was closed, the build up of boost pressure would be immense, very similar to closing a quickly flowing water tap. This excess of pressure, (which could be over five times the running boost pressure), would put the components of the system under a great strain. It would try to burst the intercooler and pipe work. More significantly, it would put a large strain on the turbocharger itself, firstly stalling the compressor shaft, then trying to force the compressor wheel out of the turbo, against its bearings. So, the dump valve prevents mechanical damage to the intercooler & turbo pipe work, prolongs turbocharger life, and prevents excessive turbo - lag that would be caused by the compressor shaft stalling.

Alan
 
If your taking about a dump valve then since the 172 engine isn't a turbocharged you don't need one and it won't work.
 
  ST
edde said:
If your taking about a dump valve then since the 172 engine isn't a turbocharged you don't need one and it won't work.

Maybe he was meaning one of those electronic ones....lol
 
Come on be nice, we were all at one time unknowing about modifications so give D_0_4_7 a break.
Maybe D_0_4_7 meant some other valve? he might have a nne ABS car and be asking about brake bias valves.
 


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