{"id":18419,"date":"2022-06-04T19:22:31","date_gmt":"2022-06-05T00:22:31","guid":{"rendered":"http:\/\/www.caddyinfo.com\/wordpress\/?p=18419"},"modified":"2022-06-05T10:31:08","modified_gmt":"2022-06-05T15:31:08","slug":"cadillac-ats-v-tune-f","status":"publish","type":"post","link":"http:\/\/www.caddyinfo.com\/wordpress\/cadillac-ats-v-tune-f\/","title":{"rendered":"Cadillac ATS-V Tune F"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Changes<\/strong>: Overspeed limit max increased from .5 to 1. Waste gate open boost increased 2 pts. Peak torque and max torque redone as 1.2x stock tunes.  Fast torque exit set to 50\/25.  Boost max limit added 1.   Increased knock airmass.   Further reduced main spark map, high octane to address KR. Transmission: increased TCC desired pressures, regulator gain, regulator offset, reset TCC desired slip to match Corvette, changed TCC adapt torque min. Disabled TCC in gears 2,3,4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"608\" src=\"http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/Tune-F1-Capture-1024x608.png\" alt=\"\" class=\"wp-image-18421\" srcset=\"http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/Tune-F1-Capture-1024x608.png 1024w, http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/Tune-F1-Capture-500x297.png 500w, http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/Tune-F1-Capture-768x456.png 768w, http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/Tune-F1-Capture.png 1527w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Conditions<\/strong>: 81F, engine Baro 12.235 inHg 74% humidity; correction 1.037 SAE J1439.  <br \/><strong>Output<\/strong>: Measured max 466.7 hp at 5315 rpm, 467.4 Ft lbs torque at 5198 rpm so <br \/>Corrected 484.0 hp at 5315 rpm and 484.7 ft-lbs torque at 5206 rpm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Goals<\/strong>:  Eliminate KR. Reduce TCC slip rpm. Reduce throttle opening.  <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Results<\/strong>: KR was reduced at WOT pressures to under 0.5 (but not eliminated); good progress. TCC still showed slip even though TCC was not applied in gears 1-4. Unclear if that helped or not; reset to stock for next tune.  Still throttle closing; going to try Sam&#8217;s driver demand map which further increases driver demand, and makes more linear.   Keeping an eye on misfires; going to go a bit richer next tune, from 12.7 to 12.5 AFR (14.113\/12.5 = 1.12904 PE value).  Fuel pressure holding fine so far. Boost rose to 19.2 PSI then fell to 18.5 before the throttle opened around 5800 rpm; not sure why. Still seeing a flat HP curve from 5300 rpm to 6200 RPM instead of a steady increase; not sure why.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Thoughts<\/strong>:  reduction in spark to reduce KR at high pressures may be limiting hp at high rpm.  Consider a richer PE and attempting to restore spark and still avoid KR or misfire.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Changes: Overspeed limit max increased from .5 to 1. Waste gate open boost increased 2 pts. Peak torque and max torque redone as 1.2x stock tunes. Fast torque exit set to 50\/25. Boost max limit added 1. Increased knock airmass. &hellip; <a href=\"http:\/\/www.caddyinfo.com\/wordpress\/cadillac-ats-v-tune-f\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/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":[6],"tags":[890,7,897,874,770,771],"class_list":["post-18419","post","type-post","status-publish","format-standard","hentry","category-site-info-news","tag-ats-v","tag-cadillac","tag-cadillac-ats_v","tag-hp-tuners","tag-hptuners","tag-tuning"],"_links":{"self":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/18419","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=18419"}],"version-history":[{"count":4,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/18419\/revisions"}],"predecessor-version":[{"id":18424,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/18419\/revisions\/18424"}],"wp:attachment":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/media?parent=18419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/categories?post=18419"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/tags?post=18419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}