We've been hard at work over the past few months developing our 1.5T (compatible with Si and Non-Si models) front mount intercooler kit. A lot of time and thought was put into developing what we feel is the most-efficient, best-fitting intercooler kit on the market with full charge pipe kit!
One of the key selling points of the 1.5T, Civic X platform is its lightweight, highly efficient engine and chassis. So efficient, in fact, that Honda engineers have continuously prided themselves for how well the factory intercooler flows and cools for such a lightweight unit. Because of this, our intercooler core of choice for this application is the same dense 24"x6.3"x3.5" 500hp bar-and-plate core we have used before with great success. The size of this intercooler also allows it to be a rather lightweight assembly (about 10lbs heavier than stock for the whole kit), meaning we are able to offer a similarly low-weight intercooler that performs much better than stock.
Our goal was to offer an intercooler setup that didn't notably affect turbo lag, yet still offers headroom for guys looking to make big power with larger turbos in the future. It is important to keep in mind that these cars are only a 1.5L with a very small turbocharger, meaning that too large of an intercooler and piping can create poor response and lag.
This intercooler will utilize factory mounting spots with our embossed end tanks as well as all factory air ducts/shrouds. Kits come standard with upgraded hot and cold side intercooler piping (powdercoated black) that utilize smooth radii and hose/tubing diameters designed with small and larger turbochargers in mind. Like most of our PRL product line, no cutting, fitting or trimming will be required. Kits will come with all hardware needed for a seemless install. Stay tuned for more pictures and info as we finish our design and begin testing!
Here is an overall comparison from what we have gathered thus far with our 2017 Civic Si in terms of gains. We chose the dyno runs to compare because these are all 4th gear pulls with identical coolant temps and knock values (~55%). All of these pulls are untuned and using the factory Honda ECU mapping.
In other words we gained 9 hp and 3 ft/lbs tq by simply bolting on our FMIC kit in comparison to the factory intercooler setup.
Before anyone says it, we already know somebody is going to say, "OMG that's it?" Let's take a bigger look at this.
All dyno testing was performed on the same day. We saw as much as a 50 degree drop or an average of 36 degrees in post intercooler intake air temps on stock ECU mapping by simply swapping out intercooler setups. These results will only be amplified when running more boost via ECU tuning. More boost out of a tiny turbocharger = higher temps. Higher temps = increased chances of knock/detonation, thus limiting power and reliability.
Though the power gains may seem minimal on a stock or near stock car running factory boost levels, gains become much greater when turning the boost up and pushing things to the max. Aftermarket intercoolers are intended to reduce post intercooler intake air temps as much as possible to make the engine and forced induction system as efficient as possible, thus drastically improving engine/component longevity. We expect our Cobra CAI system to compliment this FMIC quite well in an effort to reduce intake air temps even more!