tag:blogger.com,1999:blog-5391255626232385293.post7395503138989437924..comments2024-01-25T17:14:18.395+00:00Comments on Auto Industry Newsletter: GM ditches piezos, opts for solenoidsWhaddon Quarterlyhttp://www.blogger.com/profile/15965874319054447170noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5391255626232385293.post-522824218220502452016-10-11T07:50:06.466+01:002016-10-11T07:50:06.466+01:00It seems close to a switch to CGI. GM is now annou...It seems close to a switch to CGI. GM is now announcing that the Defiance foundry will totally stop making grey iron blocks. Duramax is as far I can see the only engine that is poured there.<br /> <br />GM : <br /><br />“To upgrade the equipment would have been cost prohibitive,” he said.<br /><br />“I don’t know the age of the equipment, but it would have been significant to upgrade to compete at global standards.”<br /><br />This "global standards" I think is related to Sintercasts writning this month<br /><br />"CGI has effectively become the standard material for V-diesel engine cylinder blocks."<br /><br />If GM were intending to continue with grey iron they wouldn´t close the greyiron in Defiance. <br /><br />http://www.toledoblade.com/Automotive/2016/10/08/General-Motors-Co-plans-to-stop-making-certain-cast-iron-engine-parts-at-its-Defiance-foundry-over-the-next-year-and-a-half.htmlAnonymoushttps://www.blogger.com/profile/04954212111881126890noreply@blogger.comtag:blogger.com,1999:blog-5391255626232385293.post-59348651465239249802016-09-30T18:08:11.470+01:002016-09-30T18:08:11.470+01:00Strange way to go if they want to lead the develop...Strange way to go if they want to lead the development. At present, there are only two V-diesel engines in the market that are not based on CGI cylinder blocks: the Mercedes 3.0L V6 (aluminium) and the General Motors 6.6L Duramax V8 (grey cast iron). CGI has effectively become the standard material for V-diesel engine cylinder blocks.<br />Why not GM?Anonymoushttps://www.blogger.com/profile/04954212111881126890noreply@blogger.com