i just installed it and i was wondering if it is alright if the tube for the optispark is not connected to the elbow? i didnt want to drill a hole in my elbow so i just tucked the tube behind the cai.

 

That tube is important because it draws a slight vacuum on the opti spark as the intake air flows past the tube and helps keep it free from moisture...Its the "vent" in your system.

--Alan

 

so its not alright for it to be pulling air from the engine bay?

 

It needs air to be drawn across the tube like from your intake airstream to be effective. I would figure out a way to use it, either farther downstream in the plastic of your CAI (if its plastic) or drill a small hole and use a grommet or small piece of rubber hose to use as a grommet and connect your vent tube.

--Alan

 

I drilled a small hole in the rubber tube that was supplied with the TF elbow. Works like a champ.

ZMAN

 

YES. This is the way you want to do it. The hole needs to be drilled AFTER the maf because the air that is sucked through the opti, through the intake, needs to be "metered" by the maf. Though a small amount, the air is still pulled through the intake and aids in the calibration of your fuel mixture.

Brandon

 

The tube that goes into the CAI is for filtered air to go through the opti.The other hose on the opti is the vacuum to pull the air through the opti to vent it.
It should not be left out in the open to draw unfiltered air as the opti will soon quit working.