CTS-V · Camaro ZL1 · LS Transplant Builds · Ship-In Nationwide
LSA Supercharger
Porting, Rebuild & Service
In-house. Dyno-proven. FAS Motorsports.
Ship us your LSA, LS9, or LT4. We port, rebuild, and return it flow-bench verified in 5–7 business days. No outsourced machining. Built under one roof since 2002.
Platforms: LSA 1.9L TVS · LS9 2.3L R2300 · LT4 1.7L TVS · M112 · M122
What Is the LSA Supercharger?
The LSA is a 1.9L Roots-style TVS (Twin Vortices Series) supercharger. Factory applications include the 2009–2015 Cadillac CTS-V and 2012–2015 Camaro ZL1 — both making 556–580 hp in stock form. The LSA runs at around 9–10 psi from the factory with a plastic rotor assembly inside an aluminum housing.
What makes the LSA popular beyond its factory platforms is availability. Used LSA units are widely available from CTS-V donors and ZL1 trades. That, combined with its compact dimensions and good airflow envelope, makes it a common transplant for GM truck and muscle car builds — particularly on 5.3L and 6.0L LS applications.
The LS9 is the larger sibling — 2.3L R2300, from the C6 ZR1 — designed for higher-RPM output and more absolute airflow. Both get the same porting and rebuild treatment at FAS.
What FAS Does
LSA Services
Precision Porting
LSA / LS9 Supercharger Porting
The LSA responds to inlet porting more than the Hellcat platforms do — the factory casting leaves significant material in the inlet path. Discharge-side porting adds less on the LSA than the IHI, but inlet work on a ported LSA consistently moves the numbers.
- ▸Precision inlet port opening and blending
- ▸Discharge passage smoothing
- ▸Hand finished throughout
- ▸Flow-bench verified before ship-back
- ▸5–7 business day turnaround
Full Rebuild
LSA Supercharger Rebuild
Used LSA units from CTS-V and ZL1 donors often have bearing wear or pressure loss after 80–120k miles. FAS rebuilds to spec — rotor clearance, bearing replacement, front seal, and case inspection. If you're already pulling the blower for a rebuild, porting is the smart add-on.
- ▸Rotor inspection and clearance check
- ▸Bearing replacement
- ▸Front seal replacement
- ▸Case inspection
- ▸Reassembly to spec and tested
Transplant Builds
LSA on 5.3 / LS Transplants
LSA on 5.3, 6.0, and 6.2 LS builds is common. FAS handles the porting and rebuild side — you bring the intake adapter kit and tuner. Call before you ship so we can confirm clearances and advise on what to send.
- ▸Port and rebuild prior to install
- ▸5.3, 6.0, 6.2 — all confirmed
- ▸Advise on supporting mod sequence
- ▸Coordinate with your tuner
- ▸Call to confirm fitment and lead time
LSA vs. LS9 — What's the Difference?
The LSA and LS9 are both GM factory superchargers and both use the TVS rotor design — but they are different tools for different applications. The LSA is the practical choice: compact, common, and well-supported by the aftermarket for transplant builds. The LS9 is the high-ceiling option for builds that want factory GM engineering behind a 700+ rwhp target.
Both respond to porting. On the LS9, inlet porting has the same effect as on the LSA — less restriction, better airflow per revolution. The discharge side of the LS9 is already more open from the factory, so most LS9 porting work focuses on the inlet.
FAS has rebuilt and ported both platforms. If you're deciding between them for a transplant, call the shop — the right answer depends on your RPM target, budget, and how hard you plan to push the fuel system.
How to Ship Your LSA to FAS
- 01
Call or email before you ship
Confirm platform, current lead time, and we'll tell you exactly what to pull. (812) 200-9012 · sales@fasmotorsports.com
- 02
Pull the right parts
Porting only? Send the complete blower — inlet porting requires access to the full housing. Rebuild + porting? Pull and ship the complete assembly.
- 03
Pack it right
Wrap all port openings. Use original packaging if available. Ship to: FAS Motorsports · 6161 Riverside Dr · Punta Gorda, FL 33982.
- 04
We port and flow-bench verify
Every unit precision ported, hand finished to spec, and flow-bench tested before crating. No shortcuts.
- 05
Back in 5–7 business days
Ready to bolt back on and tune. We'll confirm ship-back date when you book.
Other Platforms — Same Process
Rebuild Before Porting?
If your LSA has bearing noise, pressure loss, or high miles on a used donor — rebuild first. Porting a worn blower doesn't fix the underlying problem. If you're already in there for a rebuild, porting is the efficient add-on — the housing is already open.
Why FAS — Not a Generic Machine Shop
LSA Supercharger — Common Questions
What is the LSA supercharger?▾
The LSA is a 1.9L Roots-style TVS (Twin Vortices Series) supercharger used in the 2009–2015 Cadillac CTS-V, 2012–2015 Camaro ZL1, and the 2014 Camaro ZL1 convertible. It produces 556–580 hp from the factory. The LSA is widely used in transplant builds on GM trucks, muscle cars, and purpose-built race cars because it's compact, well-supported, and widely available used.
What does LSA supercharger porting do?▾
Porting removes casting flash, opens the inlet and outlet passages, and smooths the airflow path through the blower housing. The LSA has restriction at the snout inlet and at the discharge side — both respond to porting. On a healthy blower already dialed in with a tune, porting typically adds 20–40 whp and improves boost curve consistency by reducing inlet restriction.
Can you put an LSA supercharger on a 5.3?▾
Yes — LSA transplants on LS-family 5.3s are common. You'll need an intake manifold adapter, a custom or adapter throttle body, a fuel system upgrade, and a proper tune. The 5.3 head ports are smaller than the LS3/LSA, so the blower will outrun the heads at higher RPM. Most builders go to an LS3 or LS7 head swap alongside the blower install. FAS handles porting, install coordination, and can advise on the full build path.
How does the LSA compare to the LS9?▾
The LS9 is a 2.3L R2300 TVS supercharger from the C6 Corvette Z06 and ZR1 — it flows more air at higher RPM and is the platform for builds chasing 700+ rwhp on the factory blower. The LSA is more compact and more commonly available, making it the more practical transplant choice for trucks and budget-focused builds. Both platforms receive the same porting service at FAS.
What does an LSA rebuild involve?▾
A full LSA rebuild at FAS covers rotor inspection and clearance verification, bearing replacement, front seal replacement, case inspection, and reassembly to spec. Porting is the logical add-on — if the blower is already apart, porting while you have access to the housing is the efficient move. Turnaround is typically 5–7 business days.
Is the LSA supercharger bolt-on for LS applications?▾
Not directly — it requires an intake adapter, fuel system upgrades, and custom tuning for most LS applications outside of its factory platforms (CTS-V and ZL1). Several kit manufacturers make complete LSA swap kits for common LS applications. FAS does not sell the intake adapter kits but can port, rebuild, and install in conjunction with your kit.
Do you handle LSA superchargers on Camaro ZL1 builds specifically?▾
Yes. The 2012–2015 ZL1 is a common platform at FAS — blower porting, rebuilds, and full pulley/inlet upgrades are all in scope. The ZL1 responds well to porting plus a tune: most ZL1 owners targeting 600+ rwhp start with porting, a smaller upper pulley, and E85 before moving to hardware swaps.
What other GM superchargers does FAS port and rebuild?▾
FAS handles the LSA, LS9, M112, M122, and LT4. For Hellcat platforms (2.4L TVS and 2.7L IHI), see the Hellcat supercharger porting page. The service and ship-in process is the same across platforms — call before shipping to confirm fitment and current lead time.
Ship It In
Call before you ship — confirm platform, get current lead time, and get a straight answer on whether to port, rebuild, or both.
Ship-in service for: LSA · LS9 · LT4 · M112 · M122 · Hellcat 2.4L TVS · 2.7L IHI
FAS Motorsports · 6161 Riverside Dr · Punta Gorda, FL · (812) 200-9012 · Ships Nationwide
Fast. Aggressive. Superior.