We had a chance to put TheBlackBeast (here on Club RalliArt) on the dyno and have some fun with it yesterday. First we did some baseline runs. It could be from the motor being more broken in (4,000 miles) compared to the last RalliArt I had on the dyno but this one was a little stronger. The last RalliArt I had was 211-215 hp. TheBlackBeast was just almost hitting 220 whp on our AWD Dynapack dyno.
Our plan was to do a very basic budget upgrade with the car. This car’s purpose is a daily driver commuter and we also wanted to keep everything stealthy, reliable and reversible.
We made a custom axle-back exhaust using the same stainless steel muffler that Magnaflow uses on their EVO X catback system. It sits sideways in the rear similar to the stock exhaust. We re-used some stock tips from an abandoned EVO X muffler and gave everything a high temp black coating. Sound is a little deeper, a little louder but not annoying. About like a stock EVO. The cat and mid pipe all stayed original and the stock muffler bolts right back on. $325 installed for it like this.
I think much more than this is overkill for the stock little turbo. Also here in So Cal we have some very oppressive police targeting modded “ricer” cars. You can get away with more if you look stock.
Then we put on a used stock EVO X intercooler. They are a little wider and much taller. Installing it is pretty straight forward. Mostly you just need some different couplers. He paid $200 for the used intercooler and we installed it for $150 including some couplers.
Intake and filter all stayed stock and original.
Back on the dyno the car picked up about 10 hp with just the parts. But it was getting a bit more knock showing up that I liked. On one of the three stock pulls the ECU pulled 2-3 degrees of timing from knock at one point in the mid-range.