How quickly it heat soaks has a lot to due with how much water is being flowed through the intercooler and how hard you're spinning the blower. We've been testing this on a dyno and have found some blowers will heat soak in 3 pulls on the dyno because the intercoolers are so restrictive to water flow. I can tell you a 4.0L whipple intercooler can be modified to flow 20 gpm.

Yes, Kurt said that -12 fittings on that 4.0 intercooler helped stabilize the IAT for that 427ci project he is building. The pulley setup he came up with, looks pretty damn good, too.

:trophy-1302:
Makes me wonder why blower mfgs wont make them flow enough at first place?

Cost, most likely.

Can you post any info how you do it ? Or is it option if such blower is bought from you?

This part of a complete engine package we are in development of, we are using an external mechanical pump to push that volume of water through it.