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I'd love to see anything that is better (= less hassle) than today's DPF's. Periodical emptying shouldn't be a problem, as replacing oil, filters, etc., is standard practice which no-one questions.
I don't know exactly how small of particulates can be caught with a cyclone - the really small stuff (which I believe is the largest health concern) would require a very strong centrifugal force. But if a cyclone filter could be made with the same restriction as present DPF's, but without the extra fuel needed to burn out, then I think the car companies would already be all over it.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is where you're going, not how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread
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