For years, the S300SX 8376 has been regarded as the best value in journal bearing twin scroll turbos. Using an extended tip 68 lb/min 7 blade compressor wheel and a 10 blade 75.9mm inconel turbine wheel (4340 shaft). This turbo is recommended for use in quick spooling 500-600whp applications.
Available in 0.88 A/R T4 Single Scroll (Open Volute – Undivided), or 0.91, 1.00 and 1.10 A/R T4 Divided. One of the smaller S300SX’s in the lineup this uses a 7-bladed Extended-Tip compressor wheel w/ 60mm inducer & 83mm exducer. 4″ inlet compressor housing with 3″ outlet. Comes with a 0.91 A/R Twinscroll T4 hsg standard but upgrading to a 1.00 A/R or 1.10 A/R T4 Twinscroll housing is recommended for boost levels above 25psi. 0.88 A/R T4 Singlescroll also available for undivided applications. Journal Bearing and Oil Cooled only (watercooling and Ball Bearing CHRA not applicable). Similar to a Twinscroll GT3582R with higher boost capabilities at a lower price.
Full-Race Recommends machining the BW/Airwerks turbocharger outlet and welding on a 3″ Vband flange in the Garrett 40R location. This allows the BW/Airwerks turbo to bolt up to ANY aftermarket Twinscroll T4 that would normally fit a T04Z, GT40R, T66, etc.