So, I want something to make my 98 Subaru Turbo make this sort of sound
https://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

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

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.

Blanking plates?
I can only assume it's bad for the engine? Are dump valves bad for the engine?

Very bad for turbo life !

Sorry Stants, is that blow off/ dump valves that are bad for turbo life, or blanking plates?

Blanking plates mate, forcing the turbo to stall puts loads of undue stress on it,

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.

Screamer pipe if you really want to **** your neighbours off