CAI/Short Ram

[SHOdded]

Claimed power not being reached perhaps due to IAT rise inside the tubing (as discussed many times previously).

 

[BiGMaC]

Heat saturation of the tubing is definitely a factor for sure.  Rolling under hood temps are often close to ambient when measured ... Trick seems to be getting the air from outside the engine compartment and minimizing heat saturation of components.

 

[Needmoreboost]

Most aftermarket intakes switch to metal tubing and parts.  These may work great on a dyno with the hood up (cool car) and fans blowing, but not so much in the real world environments.  Once they are heated up the benefits fade.  From what I've seen owning and tuning forced induction vehicles is reducing restriction is just as helpful as moving more cold air in.  Plastics insulate from heat so much better.  Something to ponder on...

 

[FATHERFORD]

I've had multiple boosted cars and have never ran into an intake not improving. With that said, there are lots of smart engineers that make these cars very efficient now days.

 

[68_GT]

Nice BiGMac I can't wait to see the results.

 

[68_GT]

I ran with no sotck intake box with the intake pipe just open non filter around the block. Didn't sound much different with no CAI versus the stocker on with a K&N Panel so how can a K&N be any louder than no CAI on ?! I might do it for sound but I couldn't tell much difference in sound with no CAI on......

 

[BiGMaC]

Most aftermarket intakes switch to metal tubing and parts.  These may work great on a dyno with the hood up (cool car) and fans blowing, but not so much in the real world environments.  Once they are heated up the benefits fade.  From what I've seen owning and tuning forced induction vehicles is reducing restriction is just as helpful as moving more cold air in.  Plastics insulate from heat so much better.  Something to ponder on...

Agree completely… a couple of things to note:
The comments on heat soak are right on! … regardless of materials, don't you raise your hood for cooling between races?  Yep, eventually anything is heat soaked.
Fabbing in plastic (prototypes/one-ofs) is VERY expensive … maybe as much as 100x metal… so most don't do it.
Removing restriction is good… UNTIL… the piping is so large the air movement slows down and/or forms eddies.  The latter slows flow at best and the former allows more heat transfer to the air regardless of temperature…. to the intake air.  hotter/less dense intake air = less power and vice versa as you know….. So the factors of removing restriction while still maintaing laminar flow are balanced against air volume movement per unit time.  The two major factors are inseparably linked for sure… I'm focusing now on speed of air movement.  i can't stop heat soak, but I can limit heat transfer.