Gazcaz Posted March 1, 2020 Share Posted March 1, 2020 Were can i get a Turbo Blow Off Valve to Atmosphere for a Duratorq 1.5 tdci engine Fiesta Sports Van.Im guessing its some where between the intercooler to inlet manifold ie the standard one ? Quote Link to comment Share on other sites More sharing options...
Jim H Posted March 1, 2020 Share Posted March 1, 2020 The way that a diesel works, a dump/blow off valve will simply not work and is a pointless exercise. This FAQ explains it: TDI Club FAQ "The purpose of a "blow-off valve" or "diverter valve" on a petrol engine is to give boost pressure some place to go when the throttle plate is abruptly closed, to prevent operating the compressor in the "surge" regime. Since a diesel engine doesn't have a throttle plate, a gadget like this serves absolutely no purpose and has no business anywhere on a diesel engine." Engine speed is only controlled by fuel injection, air is not restricted. I believe you can fit an electronic operated dump valve, this will produce the sound of one but will not do anything to the performance of the car. I have even heard they actually decrease performance slightly when gear changing, and could even damage the turbo, as it dumps more pressure than it needs to. 1 Quote Link to comment Share on other sites More sharing options...
Gazcaz Posted March 1, 2020 Author Share Posted March 1, 2020 11 minutes ago, Jim H said: The way that a diesel works, a dump/blow off valve will simply not work and is a pointless exercise. This FAQ explains it: TDI Club FAQ "The purpose of a "blow-off valve" or "diverter valve" on a petrol engine is to give boost pressure some place to go when the throttle plate is abruptly closed, to prevent operating the compressor in the "surge" regime. Since a diesel engine doesn't have a throttle plate, a gadget like this serves absolutely no purpose and has no business anywhere on a diesel engine." Engine speed is only controlled by fuel injection, air is not restricted. I believe you can fit an electronic operated dump valve, this will produce the sound of one but will not do anything to the performance of the car. I have even heard they actually decrease performance slightly when gear changing, and could even damage the turbo, as it dumps more pressure than it needs to. Thank you it will be left alone then..... Quote Link to comment Share on other sites More sharing options...
Gazcaz Posted March 1, 2020 Author Share Posted March 1, 2020 Admin close thread please or delete... Quote Link to comment Share on other sites More sharing options...
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