Background:
The Treadstone TR8-24C is the third intercooler from Treadstone that I have performed a flow test with. The first I tried was the TR8L, which is made for low boost pressure setups. After that, I tried the TR8C which was part of the Project Bicooler investigation to see what front mount intercooler might be ‘best’ for use as a bicooler.
The results of street testing with the TR8C led me to think that there was too much airflow through the TR8C (low pressure drop), which may be adversely affecting cooling efficiency by not optimally balancing airflow between the two cores.
The TR8-24C core is two inches longer than the TR8C (22 inches), which should improve the cooling performance.
The TR8-24C is otherwise similar to the TR8C, including the end tanks’ large 3″ inlet and outlet.
Overall, the TR8-24C is similar in size to the Majesty FMIC, which is part of the popular eBay bicooler setup. (Shown below)
This post discusses a flow test of the Treadstone TR8-24C.
Test Procedure:
The Treadstone intercooler is attached to the flow bench using a silicone coupler that maintains the 3″ diameter of the end tank, and expands to 4″ at the flow bench.
At the inlet end of the intercooler another silicone coupler is attached, and a bellmouth is placed into the coupler to smooth the airflow into the end tank.
The flow bench is operated at a depression of 28″ of H2O, and the flow rate through the intercooler is recorded.
Test Results:
The Treadstone TR8-24C flows 257 CFM @ 28″ of H2O. This is shown on the chart below, along with other front-mount intercooler options and the stock GTI intercooler.
Unsurprisingly, the TR8-24C has a slightly lower flow rate than the 22″ core TR8C.
Conclusions:
The Treadstone TR8-24C front mount intercooler was the subject of a flow test.
The TR8-24C intercooler flows 257 CFM @ 28″ of H2O, the second highest flow rate measured from a GTI-suitable front mount, with the Treadstone TR8C flowing the highest.