BOOSTED B5455 Internal Wastegate Turbocharger 1.01 A/R Black Finish AF8005-3038BLK
In addition to our current range of Boosted B5455 turbochargers. We have these internal wastegate option with dual v-band options in either .92 or 1.01 rear housing. This turbo is great for smaller engine displacements from 2L up to 3.5L with the B5455 rated up to 660 engine horsepower. Perfect for those looking for a simple solution for a factory upgrade without the need to purchase a new turbo manifold and run an external wastegate.
The Boosted B5455 utilizes a Point Milled Billet compressor wheel which is manufactured from 7075 aluminium. Not only is the billet wheel upgraded from the old days of cast wheels but if you look closely at the finish of the compressor blades you will notice the point milling. Most turbochargers have a smooth surface finish known as flank milling. This is where blade surfaces are milled in a single pass on the CNC machine. This is economical and saves time but performance wise is lacking compared to point milling. Point milling brings the CNC tool over the compressor blade using multiple passes. This is a complicated process which increases the machining time and cost. The Point milled wheel provides increased flow (cfm) and reduces exducer tip speed allowing the turbo to spool faster, resulting in a much more efficient turbocharger. This point milling can increase flow (cfm) up to 15-35% depending on each size compressor wheel.
The 9-blade turbine wheel is constructed from Inconel, a Super Alloy that maintains strength during prolonged exposure to extremely high exhaust gas temperatures. When comparing this to the first generation 5455 which has a 10-blade turbine wheel. By dropping just one blade from this turbine wheel you can see some great results in top end power. Combine this with a smaller diameter center shaft that reduces the weight. You end up with a less restrictive flow of exhaust gasses allowed to exit out the rear housing at a more efficient rate.
Each B5455 turbocharger is a dual ceramic ball bearing cartridge designed to prolong the turbo lifespan and improve shaft balance. Our ball bearing design reduces the required amount of oil to provide adequate lubrication. This lower oil volume reduces the chance for seal leakage. Also, the ball bearing is more tolerant of marginal lube conditions, and diminishes the possibility of turbocharger failure on engine shut down. Boosted ceramic ball bearings are sourced from Germany or Japan depending on model. Our ball bearing cartridge utilizes an external restrictor, included with each turbocharger is a turbo oil feed fitting which has an 1mm restrictor inside the fitting.
You will notice that we have two water ports on each side of the turbochargers core. This is great for installing water lines in compact areas and gives a better option for plumbing. Water cooling improves mechanical durability and lengthens the turbocharger's life. Water cooling's main benefit actually occurs after the engine has been shut down. Heat stored in the turbine housing and exhaust manifold "soaks back" into the center section of the turbocharger after shutdown.
The Boosted B5455 turbochargers feature an internal wastegate option which is a billet unit with adjustable springs that can be swapped out depending on the desired boost level you wish to run. The larger 32mm wastegate hole is cast into the rear housing to allow boost control on low boost applications. The rear housings are only available in a dual V-band with either a .92 or 1.01 A/R rear housing. With compressor cover options of both natural cast alloy finish and hi temp black finish.
Specifications
- Speed sensor port included in compressor cover (Speed sensor sold separately, AF8050-1010)
- 1/8" NPT boost reference port
- 4 x M14 x 1.5mm coolant ports (Must install water lines on opposite sides of the core)
- 7/16" -24 oil feed fitting with in-built restrictor
- 38mm bolt center turbo drain flange with M8 x 1.25mm thread size
- Internal Billet wastegate Actuator with 14psi spring (optional springs sold separately)
- 32mm internal wastegate hole
Compressor Specifications
Inducer: 54.25mm
Exducer: 67.40mm
Extended Tip: 69.76mm
A/R: 0.70
Compressor Inlet: 3" Slip fit
Compressor Outlet: 2" Slip fit
Turbine Specifications
Inducer: 60mm
Exducer: 55mm
A/R: 0.92 or 1.01
Turbine Inlet Flange: V-Band (AF8080-1000)
Turbine Outlet Flange: V-Band (AF8080-1016)