Ok, i understand efficiancy and size of an inter/charge cooler effects ACT. I also understand that boost run and timing also can play a part in it.
I was having issues with my acts all day at mallory and i alos had trouble with them tonight. I run a rather large cooler but it seems that on the new rear housing my acts are worse ( possibly just coincidence) I have seen 64 deg tonight on a 4th gear full pull , i was running 20 psi , afr @11.9 , std ignition . I run a boris down pipe ( dunno if this affects sweet f/a) and my filter is in direct cold air and also fed by a 3 inch duct for a fog light .
What can i do to lower my acts, is there a reason mine have changed since going from a .49 rear housing to a .64 housing?Have i exceeded the map of the 60 trim wheel? Or the .42 housing?
Turbo is a .42 comp side housing with a 60 trim wheel, T25 core and rear wheel ( belive its a tomcat core and wheel) .64 rear housing at present and .49 in the garage.
Any help apreciated as normal.