Note how the inlet and outlets are staggered. The inlet is at the top of the cooler and the outlet is at the bottom. This design will force the air to flow through the whole cooler, not just straight across as if both inlet and outlets were on the top.
Analysis of Stock Intercooler
Base Test on a stage 1 vehicle at 12psi shows good power, but a flat spot in the mid range power between 5000-5700rpm is likely due to the rapidly rising outlet temps of the inefficient stock intercooler. Based upon the 100deg mid pull temps, and the 125deg end of pull temp, there is definitely room for improvement over the stock intercooler.
Analysis of ETS Intercooler
Upon installation of the ETS Intercooler Kit, the car shows a 21.05hp increase and makes 361 peak hp. Outlet temps are only 59deg at mid pull and the temps only rise to 66deg at the end of the run. These temps are signifigantly lower than stock, and it is no surprise that there is a substancial power increase with the intercooler kit installed. Aside from the midrange, we also noticed a slight Increase in top end power as well. This can be attributed in part to the ETS Replacement Charge Pipe which replaces the plastic stock pipe with the 2 restrictve dimples that protrude into the flow area of the pipe.
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