Turbosmart B Frame T4 Divided 1.00AR 66mm Turbine Housing

This listing is for a Turbosmart B Frame T4 Divided Turbine Housing with a 1.00 A/R ratio and a 66mm inducer diameter. This housing is designed to bolt onto compatible turbocharger CHRAs and manifolds, allowing you to tune your turbocharger's performance characteristics. The divided housing design helps to separate exhaust pulses from each cylinder bank, which can improve spool response and reduce exhaust manifold pressure compared to a non-divided housing.

The 1.00 A/R ratio is on the larger side, meaning it's well-suited for applications where you want to maximize top-end power and flow, especially at higher engine speeds. This is often paired with larger turbocharger compressor wheels or engines that require significant exhaust flow. The cast iron construction is well-built to handle the high temperatures and pressures found in exhaust systems. It's important to note that this part is not CARB approved and cannot be shipped to California.

When selecting a turbine housing, consider your engine's displacement, intended use, and the turbocharger's compressor map. A larger A/R like this 1.00 housing will generally lead to better high-RPM flow but might slightly increase turbo lag compared to a smaller A/R. Always consult your turbocharger manufacturer's specifications to ensure compatibility with your specific turbocharger center housing rotating assembly (CHRA).