wastegate chatter??
01 January 2010, 10:00 PM
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wastegate chatter??
Can you get a standard 2ltr turbo to chatter?? Sold my escos and got a standard uk wrx classic p.reg my escos used to chatter its nads off and i loved the noise,can you get a scoob to chatter also??? It had a dump valve on it at the moment but i just hate the noise of them and want it gone.
01 January 2010, 10:07 PM
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Blank off the dump valve pipe work bring on the debate of if it damages the engine or not - its been covered loads try the search should bring all the posts up hth jon
01 January 2010, 10:54 PM
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The net effect is the same as running no DV at all. So if you're getting a lot of this, and you're not running a turbo that is known to be tolerant to it, it might be worth looking at the spring tension - or whether a weaker one is available.
Oh, try this thread Picky, probably answers most of your questions: https://www.scoobynet.com/general-te...ve-delete.html
01 January 2010, 11:04 PM
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Which model scoob do you have Picky? The VF series turbos don't seem to like running without a dump valve because they aren't as strong as the TD turbos. I have a Sapphire Cosworth and I run no dump valve and my sister doesn't run one on her 95 WRX but they don't make the same noise 
The noise with no dump valve on a Cosworth is much nicer than the WRX.
The noise with no dump valve on a Cosworth is much nicer than the WRX.
01 January 2010, 11:17 PM
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Which model scoob do you have Picky? The VF series turbos don't seem to like running without a dump valve because they aren't as strong as the TD turbos. I have a Sapphire Cosworth and I run no dump valve and my sister doesn't run one on her 95 WRX but they don't make the same noise The noise with no dump valve on a Cosworth is much nicer than the WRX.
The noise with no dump valve on a Cosworth is much nicer than the WRX.
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01 January 2010, 11:28 PM
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If you are getting compressor stall after changing your dumpvalve, the reason for this is because the valve is not opening - presumably due to too strong a spring for the amount of manifold vacuum your engine creates.
The net effect is the same as running no DV at all. So if you're getting a lot of this, and you're not running a turbo that is known to be tolerant to it, it might be worth looking at the spring tension - or whether a weaker one is available.
Oh, try this thread Picky, probably answers most of your questions: https://www.scoobynet.com/general-te...ve-delete.html
The net effect is the same as running no DV at all. So if you're getting a lot of this, and you're not running a turbo that is known to be tolerant to it, it might be worth looking at the spring tension - or whether a weaker one is available.
Oh, try this thread Picky, probably answers most of your questions: https://www.scoobynet.com/general-te...ve-delete.html
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