After sorting out a plan of attack we've finally got started on the larger fab jobs in the engine bay of the Corolla. The first round of major work on the car was to get the two Garrett turbos mounted up.
The turbos themselves are a pair of 58mm Garrett GTX3576Rs with .84AR V-band entry rear housings which should be nice and punchy on the SBE LS1.
Local fabrication workshop Racemod was given the job of putting together the steampipe manifolds, taking extra care to ensure each side was as close to identical as possible.
Close attention was also paid to the wastegate positioning and feed to ensure optimum boost control. By positioning eash Turbosmart 45mm HyperGate wastegates in the direct path of the exhaust gas it ensures that there is no restriction and flow good so that when peak boost is reached and the valves open, boost can be held at the set levels more consistently.
Both wastegates are vented to atmosphere via 2”stainless dumps to match the dual 3.5” stainless dump pipes off the turbos, exiting just under the front guards. Unfortunately the dump pip bull horns didn't get done but we'll get back to those later on.
A benefit of the GTX3576R turbos is that if we ever want to step up to the larger 62mm 3582r units all we need to do is simple switch out the cores and it's done. the rear housing remains the same.
Overall we're really happy with how everything has come out and looking forward now to the next round of mods. Stay tuned for more updates on the build as they happen.