I replaced a leaking intercooler two few days ago now I get a supercharger whine on startup an shutting the car off like the supercharger is engaged definitely hearing it more now going to double check my hoses and lines cars idles and run great no cel lights also did tje bake potato mod on the intercooler IATs are still 20 to 25 above ambient

 

Have you rechecked your superchargers oil level after reinstalling it? NeedsWings sells the Jet Turbine oil you need. Normally you change the oil until every 100,000 miles. If the serpentine belt is off by one groove on any of the pulley's,you'll hear it. Squirrel Crusher

 

Clean intercooler makes it louder, Woody

IAT seem higher, is the IC clear of bubbles?

 

Not positive, but doesn't Chill Charger(water wetter)additive help with breaking down the little microscopic air bubbles, in addition to the other good things it does with the IC coolant?

 

my normal IATs were upper 20s to 30 degrees above ambient but now lower 20s system separated but that was with distilled water draining that an going with hyercool or water wetter,also I do have a aftermarket heat exheater definitely larger than stock I am resding my IATs from a torque app pro so I am guessing the temps are reading what the factory sensor is reading

 

I wrote up an article about using a thinner antifreeze mixture for the IC to improve the heat transfer. Pure water is better than antifreeze, it only used for freezing temps and corrosiion. I used 20% antifreeze and water pump treatment to keep the chemistry happy, Enjoy Woody.

 

The SC should not operate unless the magnet is energized although it will free wheel due to the air passing through it.
Could it be the air pump that is heard and not the SC? Maybe the air pump is operating all the time.

 

Intercooler with baked potato mod appears to be wrking my IATs are 19 to 21 degrees above ambient according to my torque pro app could be wrong its using the factory sensor also supercharger definitely louder got a video posted an I picked up 2 mph so I got my performance back an some extra cooling oh ymy normal IATs use to hover around 30 to 35 above ambient,my system is separated ford lightning intercooler pump,aftermarket very large heat exchanger and now the back potato mod so far so good

 

This post was originally about the SC whine at start up and shut down, what happened?