Brand new for 2024, we've updated and revised every aspect of our RB26 single kits:
-New Turbocharger options
-Updated manifold / collector designs
-Revised wastegate recirculation
-Full 3.5" upper downpipe
-Improved Line kit heat shielding
-Updated valvecover heat shield w/ wastegate pressure line integration
-New Shadow Series represents the pinnacle of our Turbo kit line - w/ ceramic coated hot parts, powder coated compressor housing with additional milling, custom anodzing, titanium heat shield and more!
Utilizing our in-house built stainless manifold, featuring investment cast merge collector(s), external wastegates, and V-band or divided T4 turbine flange. Your turbocharger of choice can be selected to match your desired powerband.
All our Spectrum built Turbochargers have been updated for 2024! The SR/58 has a 1mm larger Compressor Inducer, with updated aerodynamics and reduced blade count to further improve how this Turbocharger performs at low boost pressure. Both SR/59 and SR/61 Turbochargers have been updated for reduced Rotorgroup Intertia and better Response at low-mid boost levels.
The SR/65 and new SR/67 Both have a new Turbine wheel, with a much larger 75mm Inducer for better Efficiency and Lower EMAP at high boost Levels. These are Perfect for those on E85 or Race Gas and an engine package ready for 700+WHP. This new Turbo, paired with our brand new .95 A/R Twin-scroll Turbine, allows for added top end potential without addtional lag penalty!
All of our exhaust manifolds are entirely stainless steel (including flanges), are back purged, and TIG welded via positioner at our facility in Vancouver. Our careful consideration for runner length, collector design, orientation, wastegate placement, and turbine flow characteristics ensure optimal performance.
New for 2024, all Spectrum manifolds are build with investment cast collectors assemblies. We designed our updated twin-scroll collector assembly from scratch, to maintain the most laminar flow into the turbine volute and wastegate passages. This has been designed in conjunction with our brand new twin-scroll turbine housing, so the entire hot side combination works perfectly together.
ALL our RB exhaust manifolds are equal length, delivering an enjoyable exhaust sound and even exhaust pulse delivery. Our single-scroll V-band turbine variant utilizes a long-runner design to achieve this, and results in a powerband that comes on hard around 4000 RPM and pulls past 8k with a good cylinder head. Our twin-scroll design features the shortest-possible equal-length runner configuration, keeping exhaust pulse energy as high as possible into the divided Turbine Inlet.
Our twin-scroll RB manifold utilizes a unique arrangement for both merge collectors, allowing for significantly shorter runner length and lower pre-turbine volume than other equal length manifolds. This results in the best match for mid-frame twin-scroll T4 turbines, with fantastic torque and "area under the curve".
For those targeting 4-digit horsepower numbers, we also have a large runner version of our Twin-scroll manifold. This combination is fully built with Hypertune 347 Stainless components, and has a lower Turbine Flange placement. This is the ultimate combination for those who care about powerband, and has been proven past 1300whp... all while maintaining the ability to run AC and PS! please note, this is custom build for each kit, so please email for any inquries.
For anyone using a G-Series turbochager, we suggest the Artec V-band exhaust manifold. This compact manifold is cast in 347 stainless, and features smaller 33mm ID runners to improve response and overall powerband in a single-scroll configuration. The boost control is also fantastic on this manifold, making it a great choice if you're needing to run low boost pressures. Please note, to ensure the lowest possible volume, this manifold is designed for reverse rotation turbochargers.
We have compressor and turbine maps available for all our RB offerings, and can help with advanced compressor and turbine matching to any unique application. Please contact us if you are looking to match a turbocharger or configure any options that are not listed in our drop-down menu.
Our Turbocharger spec selections are as follows:
Up to 450WHP - Spectrum SR/55
Up to 550WHP - Garrett G30-770
Up to 550WHP - Spectrum SR/59
Up to 625WHP - Spectrum SR/61
Up to 750WHP - Garrett G35-900
Up to 750WHP - Spectrum SR/65
Up to 825WHP - Garrett G35-1050
Up to 850WHP - Spectrum SR/67
Our "Full Conversion" single turbo kit allows you to convert your twin-turbo RB26 to Single Turbo without additional fabrication, and includes:
Top mount, equal length exhaust manifold
Dual ball bearing turbocharger custom specified for RB26 (500 to 1000bhp capable)
Stainless investment-cast twin-scroll or V-band turbine housing
Turbosmart wastegate(s)
3.5" stainless 2-piece V-band downpipe
Screamer pipe (optional Wastegate recirculation)
Oil and water line Installation kit
4" inlet and K&N filter kit
Hot pipe and couplers
Fasteners, clamps, gaskets, heat shielding etc,
**Please note - While this kit includes everything needed to convert to Single Turbo without additional Fabrication, Professional installation is suggested. The PS reservoir will need to be moved from the stock location, however everything else fits R32/33/34 GTR w/ OEM AC and Power Steering Pump**.
All of our turbocharger kits are built to order for your exact requirements and specifications and our current lead time is 2-4weeks. Please email info@spectrummotorsportssolutions.com for more information.
All prices are listed in USD. Please email directly for inquiries and invoicing in CAD.
