ChrisValentine Posted April 28, 2015 Share Posted April 28, 2015 So, I want something to make my 98 Subaru turbo make this sort of soundhttps://www.youtube.com/watch?v=WqACDuwR9w0 https://www.youtube.com/watch?v=QBUIsYa_E5M <--- More like this one. Is that just with a Forge Valve and filter? OR do you have any videos of yours that sound better?I've just got a Cosworth Panel Filter and Scorpion centre and Backbox. Would I need to get it mapped when I put the Forge Valve (or any valve on)? Does it badly affect petrol usage? Any negative affects on the engine or turbo? (read up and found quite a bit of scaremongering... )Thanks in Advance,Chris Quote Link to comment Share on other sites More sharing options...
jay14 Posted April 28, 2015 Share Posted April 28, 2015 I like the sound in the first video, I think that might be something to do with the wastegate, I'm curious to know now as well Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted April 28, 2015 Share Posted April 28, 2015 Sounds more like turbo chatter than the effects of a dump valve. From my limited knowledge turbo chatter is caused by the air escaping back through the turbo instead of the dv effectively stalling the turbo. I may be wrong so please correct me as such. Quote Link to comment Share on other sites More sharing options...
ChrisValentine Posted April 29, 2015 Author Share Posted April 29, 2015 Blanking plates?I can only assume it's bad for the engine? Are dump valves bad for the engine? Quote Link to comment Share on other sites More sharing options...
stants Posted April 29, 2015 Share Posted April 29, 2015 Very bad for turbo life ! Quote Link to comment Share on other sites More sharing options...
ChrisValentine Posted April 30, 2015 Author Share Posted April 30, 2015 Sorry Stants, is that blow off/ dump valves that are bad for turbo life, or blanking plates? Quote Link to comment Share on other sites More sharing options...
stants Posted April 30, 2015 Share Posted April 30, 2015 Blanking plates mate, forcing the turbo to stall puts loads of undue stress on it, Quote Link to comment Share on other sites More sharing options...
Gambit Posted April 30, 2015 Share Posted April 30, 2015 Can get external waste gates to make noise or dump valves. Id say they had anti lag or something running possible with a blanking plate. To increase noise. Quote Link to comment Share on other sites More sharing options...
stants Posted April 30, 2015 Share Posted April 30, 2015 Screamer pipe if you really want to **** your neighbours off Quote Link to comment Share on other sites More sharing options...
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