Optimized for 1.8-2.2L displacement SI engines with power outputs between 300 and 450BHP, the SR/47 turbocharger is well suited to many high performance modern engine applications. It's 47mm compressor inducer supports flow rates of 42 lb/min, while also providing impressive surge resistance for a wide flow range; critical for correctly matching the high volumetric efficiency across wide RPM ranges seen with today's modern 4 cylinder engines.
The standard ported compressor shroud increase compressor map width, while also improving compressor efficiency closer to surge, resulting in impressive spool characteristics and low to mid range engine torque output. Based around a patented and fully serviceable ball-bearing cartridge featuring second-to-none materials selection throughout, this turbocharger is built to last even under high temperatures and rotor speeds.
A wide range of turbine options are available, allowing for a perfect turbine match under virtually all operating conditions. For most applications, it's standard radial-flow turbine wheel, made out of the high-nickel Inconel 713-C superalloy with either .64 or .86 A/R open volute housing is a great fit, howerver we can configure turbine housing sizing and flanges to fit a range of applications. The serviceable and modular nature of the CHRA design, in conjunction with our commitment to customer satisfaction and product adaptability allows for repair, modification, or upgrading of your turbocharger at any time, without the unnecessary re-purchasing of a entire new unit.
All of our turbochargers are built to order to meet your exact requirements and specifications. Our current lead time is 2 weeks. Please email info@spectrummotorsportssolutions.com for more information.
All prices are listed in USD, with taxes applicable to Canadian residences. Please email directly for inquiries and invoicing in CAD.
OPERATIONAL SPECIFICATIONS:
Compressor choked flow rate: 42 lb/min (corrected)
Compressor flow range at 2:1 PR: 9.5-42 lb/min (corrected)
max. Compressor efficiency: 75%
max. Pressure ratio: 3:1
Max. Compressor tip speed: 575 M/S (160,000RPM)
Max. Turbine inlet temp: 985C (cast) / 1025C (316SS)
DESIGN SPECIFICATIONS:
Compressor:
Billet 2618 Aluminum / 5-axis machined wheel
47mm full-bladed inducer
.65 A/R housing volute
V-band Housing Interface
3" inlet / 2" outlet
CHRA:
Water-cooled, Ball bearing Cartridge
Integrated oil feed restrictor
Silicone Nitride Ceramic balls
M50 bearing rings
Silver-plated 4340 bearing cages
Turbine:
Inconel 713-C turbine wheel w/ 4340 chromoly shaft
54mm inducer diameter
.64 or .86 A/R housing Volute
"T2" or V-band inlet flange
Ported internal or external wastegate
Optional features:
Billet ported compressor shroud Insert
Adjustable compressor sound production (quiet operation, or audible compressor noise)
Cerakote Ceramic turbine housing coating
Custom anodizing of any billet aluminum components
Low-boost, 1 Bar (std), or Turbosmart wastegate actuator
