{"id":548,"date":"2010-06-22T11:40:05","date_gmt":"2010-06-22T16:40:05","guid":{"rendered":"http:\/\/trolltuner.com\/?p=548"},"modified":"2010-06-22T13:34:29","modified_gmt":"2010-06-22T18:34:29","slug":"t8-maf-scaling-results","status":"publish","type":"post","link":"https:\/\/trolltuner.com\/?p=548","title":{"rendered":"t8 MAF scaling results.."},"content":{"rendered":"
Intake MAF scaling results from August -08..<\/h5>\n
\"\"Ok so as most of you know the biggest problem with aftermarket intakes (k&n, simota etc) is the MAF scaling issues related to airmass cuts or limp home.. \u00a0 BSR solves this by using a factory piece leading to certain success. \u00a0Others try with not so great results. \u00a0The test car is 9-3 Aero 2.oT 6 speed. Hardware is Catback, BSR stg1, Large Intercooler and 91 octane gas.<\/div>\n

\"\"<\/p>\n

The stock MAF is 2.75″ but internally has a D shape so the full area is not present.\u00a0Most aftermarket use a 2.75″ OD tube of round cross section and .065 wall. This gives slightly more area. (Will calculate it sometime.) \u00a0I built one like this just to see a few years ago for the -03 linear. \u00a0Worked ok until it got hot out and then had issues. \u00a0Same for the -04 aero on stock software. On tuned software it gives undesired results. \u00a0 While I had my Aero on the dyno testing the new intercooler we swapped to the special intake.<\/div>\n

\"\"<\/a>Run 3 is stock airbox 4 and 5 with it after playing for a bit to adapt it. Here you can see the MAF worked well above 3k but under it hurt power. \u00a0You can feel this on the road. Peak HP went from ~215 to 228 and tq from ~260\u00a0to ~271 with nice gains across the range. This is from lying to the ECU about load. \u00a0Remember T8 goes for target airmass to make the desired torque. Your basic garbage in garbage out.<\/p>\n

\"\"<\/a>This becomes more apparent when you see the boost and A\/f \u00a0 With the big IC inlet temp is nearly a constant. \u00a0Bost is a little lazy and all over the place. \u00a0Airfuel is leaner due to the lower load signal sent to the ECU. \u00a0This is why the boost is higher, the ECU is trying for more airmass not knowing it is actually making it. \u00a0\ud83d\ude42<\/div>\n
I have some aluminum flanges we cncd for 3″ pipe and plan to try one of those later. Will probably have to add some fuel pressure to sort it out.<\/div>\n","protected":false},"excerpt":{"rendered":"

Intake MAF scaling results from August -08.. Ok so as most of you know the biggest problem with aftermarket intakes (k&n, simota etc) is the MAF scaling issues related to airmass cuts or limp home.. \u00a0 BSR solves this by using a factory piece leading to certain success. \u00a0Others try with not so great results. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,15,5],"tags":[],"class_list":["post-548","post","type-post","status-publish","format-standard","hentry","category-93-ss","category-dyno","category-powertrain"],"_links":{"self":[{"href":"https:\/\/trolltuner.com\/index.php?rest_route=\/wp\/v2\/posts\/548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/trolltuner.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/trolltuner.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/trolltuner.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/trolltuner.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=548"}],"version-history":[{"count":5,"href":"https:\/\/trolltuner.com\/index.php?rest_route=\/wp\/v2\/posts\/548\/revisions"}],"predecessor-version":[{"id":550,"href":"https:\/\/trolltuner.com\/index.php?rest_route=\/wp\/v2\/posts\/548\/revisions\/550"}],"wp:attachment":[{"href":"https:\/\/trolltuner.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/trolltuner.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/trolltuner.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}