I’ve been using a Unitronic stock location intercooler for a while but haven’t taken airflow measurements for this IC. I decided it was time to measure the Uni IC but had to first remove it from my GTI.
With the intercooler out of the car it was mounted onto the flow bench.
The airflow reading for the Unitronic intercooler was noted and added to the other previously measured intercoolers.
For answers to common questions about intercoolers Bell Intercoolers has a nice FAQ.
One question in the FAQ (#3) related to this post is quoted here:
Q. Is some intercooling better than no intercooling?
A. No. It depends on the design of the intercooler, and there are two factors involved; efficiency (how much heat is removed) and the flow restriction (lost pressure) created by the presence of the intercooler. Regardless of the efficiency, if too much pressure is lost, then the intercooler is either useless or can actually decrease performance.