Introduction
When it comes to high-performance diesel turbocharger upgrades, few names carry as much weight as Bullseye Power. Their turbochargers are engineered for enthusiasts who demand more than what the factory ever intended — and the Bullseye 80mm 7 Blade Turbo is a prime example of that philosophy in action.
At $2,319.99, this isn't an impulse buy — it's a serious investment in your build. This guide breaks down exactly what you're getting, who it's built for, and how to get the most out of it.
What Makes the Bullseye 80mm 7 Blade Turbo Special?
Not all turbos are created equal. The Bullseye 80mm stands apart from budget alternatives in several key ways:
Billet 80mm 7-Blade Compressor Wheel
The heart of this turbo is its billet machined 80mm compressor wheel with a 7-blade design. Billet construction means the wheel is machined from a single solid piece of aluminum — far stronger and more precisely balanced than cast alternatives. The 7-blade configuration optimizes airflow efficiency, reducing turbulence and improving spool characteristics at the flow levels an 80mm wheel operates at.
80mm BEP Gen 3 Race Cover with V-Band Outlet
The Gen 3 Race Cover is purpose-built for high-flow applications. The V-Band outlet makes installation and removal significantly easier than traditional flange setups — a detail that matters when you're doing repeated pulls at the track or making adjustments in the shop. V-Band connections also provide a more secure, leak-free seal under high boost conditions.
T-6 1.45 A/R 96TW Turbine Housing
The turbine housing is where exhaust energy gets converted into shaft speed. The T-6 flange is a large-frame inlet designed for high-exhaust-flow applications. The 1.45 A/R ratio is on the larger side, which means this turbo is tuned for top-end power and high RPM performance rather than low-end spool — exactly what you want in a purpose-built performance application. The 96TW turbine wheel complements the 80mm compressor side for a well-matched, efficient package.
Z+0.012" Precision Specification
The Z+0.012" spec refers to the tight clearance tolerances held during manufacturing. Tighter tolerances mean better efficiency, less shaft play, and longer bearing life — all critical factors in a turbo that will see sustained high-boost operation.
Who Is This Turbo Built For?
The Bullseye 80mm 7 Blade is not a mild street upgrade. This is a competition-grade turbocharger designed for:
- High-horsepower diesel builds targeting serious power numbers
- Sled pull competitors who need reliable, repeatable power under extreme load
- Track and drag racing applications where top-end power and flow capacity matter most
- Enthusiasts building a dedicated performance truck who want a turbo they won't outgrow
If you're building a truck that needs to move serious air and make serious power, the 80mm 7 Blade is the right tool for the job. If you're looking for a mild daily driver upgrade, this turbo will be overkill — and we'd point you toward a smaller, faster-spooling option instead.
Key Specifications at a Glance
- Compressor Wheel: Billet 80mm, 7-blade design
- Compressor Cover: 80mm BEP Gen 3 Race Cover, V-Band outlet
- Turbine Housing: T-6 1.45 A/R 96TW
- Exhaust Housing: BW
- Specification: Z+0.012" precision tolerance
- SKU: 801457
- Price: $2,319.99
Supporting Modifications to Consider
A turbo of this caliber deserves a supporting cast to match. Running an 80mm turbo without addressing the rest of the system is leaving power on the table — and potentially putting stress on components that weren't designed for this flow level. Here's what to think about:
Fueling
More air requires more fuel. An 80mm turbo will push airflow well beyond what stock injectors can match. Upgraded injectors and a tuned fueling map are essential to take full advantage of the compressor's flow capacity. Make sure your fuel system — from the lift pump to the injection pump to the injectors — is sized for the power level you're targeting.
Intercooling
At the boost levels an 80mm turbo can generate, charge air temperatures will be significant. A high-capacity front-mount intercooler (FMIC) is a must. Compressed air that isn't properly cooled loses density — which means less oxygen per cylinder and less power. Don't let a marginal intercooler be the bottleneck in an otherwise capable build.
Exhaust
The T-6 turbine housing requires a T-6 exhaust manifold. If you're upgrading from a smaller turbo with a different flange, you'll need to address the manifold as part of the swap. A high-flow exhaust system downstream of the turbo will also help the turbine housing breathe freely and reduce backpressure.
ECU Tuning
This is non-negotiable. A turbo swap of this magnitude requires a custom tune to properly manage boost targets, fueling, and timing. Running a stock or generic tune with an 80mm turbo will result in poor performance at best and engine damage at worst. Work with a tuner who has experience with your specific platform and this turbo combination.
Oil and Cooling Lines
Verify that your oil feed and return lines are properly sized and routed for the new turbo. Inadequate oil supply is one of the most common causes of premature turbo failure. If you're doing a full build, this is the time to upgrade to braided stainless lines with proper fittings.
Also Consider: The Bullseye 80mm Titanium Turbo
If you want to take things even further, we also carry the Bullseye 80mm Titanium Turbo — featuring titanium construction for reduced rotating mass and even higher heat tolerance. It's the next step up for builds where every detail matters.
Why Buy From Diesel Freak?
We're not a big-box parts warehouse. We're diesel enthusiasts who sell the parts we believe in and stand behind what we sell. When you order the Bullseye 80mm 7 Blade Turbo from us, you're getting:
- A genuine Bullseye Power product
- A team that can answer real technical questions about your build
- Support if something doesn't go as planned
Have questions about whether this turbo is right for your application? Contact us before you order — we'd rather help you get the right part than have you return the wrong one.
Ready to Make the Upgrade?
The Bullseye 80mm 7 Blade Turbo is one of the most capable turbochargers we carry, and it's built for builds that demand the best.
Shop the Bullseye 80mm 7 Blade Turbo — $2,319.99 →
Questions about your build? Reach out to our team — we're here to help you get it right.