|The Nisei core is much thicker as well.|
After our cam installation, Naji Dahi of Looney Tuning revised our MIVEC map to match the more aggressive cams and raised our target idle speed and ignition advance to smooth the idle. Our fuel and timing maps were also moderately revised.
|We had to modify some of our grille mounting tabs somewhat to clear the big intercooler core. The late Richy Watanabe cuts the tabs with an air cutter.|
With the Cosworth M2 cams, our 4G63 responded with an astounding gain of 28 hp and over 28 lb/ft of torque. The power gains were wide with power increased throughout the rev range from low to high rpm. Our power curve is broad and flat with very little fall off at the very top of the rev range at an awesome 8000 rpm. The car pulls strongly all the way to the rev limiter. We are at over 100 wheel horsepower from 3000 to 8000 rpm, an amazing 5000 rpm wide power band! These gains make the Cosworth M2 cams the biggest single power adder we have tested to date by a big amount. Our bolt on 4G63 is now pumping out 367 whp on 91 octane pump gas with a lower than stock knock count!
|The Nisei Engineering intercooler completely fills the frontal openings of the front end exposing the maximum amount of core to the airflow.|
Next we wanted to test the car with an intercooler and charge pipes that were still available on the market. Tired of being constantly ripped off by Chinese copy cat companies Eric Hsu closed XS Engineering’s parts business and the parts we used on our car were no longer available.
|You can see what a tight fit it is here. However the AC condenser still fits nicely.|