jon_dragon Posted January 16, 2014 Share Posted January 16, 2014 This might be a stupid question but what happens to ACIS when your already putting pressurised air through the inlet manifold from a turbo? Link to comment Share on other sites More sharing options...
Guest Fly Posted January 17, 2014 Share Posted January 17, 2014 TBH i have no idea, most leave the ACIS connected and it doesnt seem to cause any issues. I would like to know about removing it and the benefits/ issues for when i build my ITB and plenum. Link to comment Share on other sites More sharing options...
jon_dragon Posted January 21, 2014 Share Posted January 21, 2014 Its definately beneficial to have it on an N/A. Less so on a turbo. I guess the boosted air entering the plenum will just be more compressed. Link to comment Share on other sites More sharing options...
Rich.2211 Posted February 2, 2014 Share Posted February 2, 2014 I have deleted the ACIS on mine, it also allows you to do away with the pressure cannister and all the vac hoses associated with it. Link to comment Share on other sites More sharing options...
Guest Fly Posted February 4, 2014 Share Posted February 4, 2014 what have you done with the millions of ports on the y piece? Link to comment Share on other sites More sharing options...
David P Posted February 7, 2014 Author Share Posted February 7, 2014 Removing the ACIS flap and opening out the inside of the casting will give around 5 bhp more at the top at the cost of losing around 20 ftlbs torque at the bottom. Which means that keen young bucks will take it out and wise old farts will leave it in. Link to comment Share on other sites More sharing options...
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