Quote:
Originally Posted by RSL
Shouldn't see much change even removing the entire airbox and there are things in tuning and the car that can effect DC without really moving boost too much (including environment changes), but the BCS and tune change was probably it. Thanks for clearing that up.
I figured if you were going to bother buying a Z4 lid, you wanted to keep it closed. Venting the intake side undoes that and pulls air in from under the hood. You'll still get the balance it can't flow from the snorkel, so may not be quite as bad as DCI, but given enough run time, will likely see higher IATs.
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Yeah that has been the debate for years with FBO cars and one of the main things that held me back from a true DCI. Stock airbox gives colder thus denser air but in high rpm and high boost maybe a bit of a restriction... Thats why I am trying to make a combination here.
But in springtime when the roads will be better I will do back to back testing on the same maps and report back.