When I got my cone intake for the car I had to modify this tube in order for it to fit in the hole of the intake tube. Since then I had wondered why there was this separate tube that connected the intake to the rear valve cover. It seemed like air would be flying into the rear valve cover.. I looked inside the TB and it was dirty/oily as hell...and I figured it to be like that because the tube runs from the valve cover of course.
I cleaned out the tube and it was very oily in there too, and I thought to myself it obviously cannot be good for oil to be flying into the TB, even if it was little bits at a time. I thought if that tube wasn't there the TB, and the air going into the engine, would probably be a lot cleaner, but the tube was there for a reason, so I just left it and modified it to fit the intake.
Anyway, it was just weird to me because I had never seen a tube like that as part of the ventilation system.
I cleaned out the tube and it was very oily in there too, and I thought to myself it obviously cannot be good for oil to be flying into the TB, even if it was little bits at a time. I thought if that tube wasn't there the TB, and the air going into the engine, would probably be a lot cleaner, but the tube was there for a reason, so I just left it and modified it to fit the intake.
Anyway, it was just weird to me because I had never seen a tube like that as part of the ventilation system.
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