{"id":11068,"date":"2011-09-02T07:40:17","date_gmt":"2011-09-02T12:40:17","guid":{"rendered":"http:\/\/caddyinfo.com\/wordpress\/?p=11068"},"modified":"2013-01-26T07:44:01","modified_gmt":"2013-01-26T13:44:01","slug":"stock-cadillac-sts-exhaust-flow-308-cfm","status":"publish","type":"post","link":"http:\/\/www.caddyinfo.com\/wordpress\/stock-cadillac-sts-exhaust-flow-308-cfm\/","title":{"rendered":"Stock Cadillac STS exhaust flow: 308 CFM"},"content":{"rendered":"

Found this interesting info graphic from a Corsa performance ad on a Lingenfelter<\/a>\u00a0site:<\/p>\n

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Corsa vs Stock Exhaust for Corsa 14157<\/p><\/div>\n

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The graphic shown is for the 14157 system versus the stock 2005 Cadillac STS system. This is particularly interesting for the STS-V since this is the same Corsa system that D3 sells for the STS-V.<\/p>\n

The text notes: * Flow bench-tested 42.3 gain in exhaust flow vs. stock muffler.<\/span><\/em><\/p>\n

This I read to mean that the graph is for flow through a single Corsa muffler versus a single stock muffler.\u00a0 So in other words, the dual Corsa mufflers probably flow around 437 x 2 =874 CFM and the stock mufflers flow around 308 x 2 = 616 CFM.\u00a0 Recall our target is 2.2 CFM\/HP for 0 backpressure, so with a modified STS-V making 500 hp plus S\/C load we would need 560 hp of exhaust or 560 x 2.2 = 1232 CFM.<\/p>\n

I am guessing that the STS-V stock exhaust flow is similar to the STS stock exhaust flow.<\/p>\n

We can see from the numbers then that the stock exhaust flow is insufficient, and that the Corsa’s are an improvement, but there is still some margin for further improvement.
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 <\/p>\n","protected":false},"excerpt":{"rendered":"

Found this interesting info graphic from a Corsa performance ad on a Lingenfelter\u00a0site:   The graphic shown is for the 14157 system versus the stock 2005 Cadillac STS system. This is particularly interesting for the STS-V since this is the … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,6],"tags":[611,794,789,786,795,793],"class_list":["post-11068","post","type-post","status-publish","format-standard","hentry","category-mods","category-site-info-news","tag-cadillac-sts","tag-cfm","tag-corsa","tag-exhaust","tag-hpcfm","tag-scfm"],"_links":{"self":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/11068","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/comments?post=11068"}],"version-history":[{"count":14,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/11068\/revisions"}],"predecessor-version":[{"id":14513,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/11068\/revisions\/14513"}],"wp:attachment":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/media?parent=11068"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/categories?post=11068"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/tags?post=11068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}