Re: Somender Singh grooves- on a duratec?
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Originally Posted by Oreo
He's got a patent on the idea. So, the major manufacturers can't use it without his permission. But he wants a lot of money for using his ideas, and obviously, the auto manufacturers think there are less expensive solutions to their problems.
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There probably are. DISI is pretty good at creating turbulence in the cylinder, and a four-valve direct-injection head doesn't have a lot of space left for grooves.
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