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- Vendor EMPI
- SKU 47-7319-0
Not sure it fits? Call the shop: (657) 438-7002.
EMPI 44mm HPMX Dual Carb Kit — Maximum Street-Strip Fuel Delivery for the Type 1
When a single carburetor isn't enough and you're ready to feed your Type 1 engine properly, the EMPI 44mm HPMX dual carburetor kit is the benchmark setup. Two 44mm HPMX carburetors — EMPI's own design drawing on the classic twin-choke layout — deliver the fuel-air mixture that high-performance Type 1 engines demand, transforming throttle response and upper RPM power delivery in a way that single-carb setups simply cannot match.
Why Dual Carbs on the Type 1
The stock single carburetor feeds all four cylinders of the flat-four engine through a central intake. As displacement grows and compression rises, the single carb becomes the limiting factor — it can't deliver enough mixture fast enough when the engine really needs it. Dual carbs place one carburetor on each side of the engine, feeding two cylinders each. The result is shorter intake paths, more direct fuel delivery, dramatically better throttle response, and the ability to properly jet for a modified engine.
The HPMX design specifically addresses the packaging constraints of the air-cooled VW engine, using a compact body layout that clears the engine tin and fan shroud without requiring custom fabrication. The progressive linkage included in the kit provides smooth, street-friendly low-speed behavior while still opening both carbs fully at higher throttle positions.
Complete Kit Contents
Everything needed to bolt on dual carbs is included: both 44mm HPMX carburetors, intake manifolds, progressive throttle linkage, air filter assemblies, jets, and all necessary hardware. EMPI designed this as a complete bolt-on system — no hunting for manifolds, linkages, or mounting hardware separately.
Fitment
- Volkswagen Type 1 Beetle / Super Beetle: All years (1300cc–1600cc)
- Volkswagen Karmann Ghia: All years
- Note: Recommended for use with a performance cam and free-flowing exhaust for maximum benefit
Specifications
- SKU / Part Number: 47-7319-0
- Carburetor bore: 44mm
- Carb style: HPMX (dual-choke)
- Linkage: Progressive throttle linkage included
The Tech Bench Everything we know about doing the work, in one place — written and filmed on our own bench in Orange, California, with the same parts we sell you.
Pick a bench below. Written install guides, free decoder tools, install videos, and the fitment lookup — each one lives on its own page so you're not scrolling past nine systems to find the one you're working on.
Four benches
Pick the one that matches the job in front of youInstall Guides
The full written library — procedures, torque specs, and the order of operations that keeps you from taking something apart twice. Organised by system.
55 guides8 systems5 published Open the library 02Decoders & Lookup
Chassis number, Beetle M-code, Bus M-code. Free tools for pinning down exactly what you have before you spend money on a part that doesn't fit it.
Chassis No.M-PlateFree Open the decoders 03Watch & Learn
Install videos and build footage from the shop floor. Watch the part go in — then grab the kit from the same page.
InstallsBuildsYouTube Watch the videos 04Fitment Lookup
Year and model in, the parts that actually fit out. The fastest way from "I think it's a '67" to the right part number in your cart.
Year / ModelAll parts Open the lookupLatest from the bench
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Type 1 and Bus transaxles. Ring and pinion, gear ratios, tire height and shift rpm in — road speed, rpm drop on every shift, and cruise rpm out.
Type 1 · BusOpen the calculator CH01 Guide 01 Best sellerSnap-Lock Delrin Shift Bushing
The 20-minute fix that turns a sloppy shifter crisp — and the whole shift-linkage explained.
#CH01Read the guide BY01 Guide 27Big Washburn Windows
Large engine-bay access panels for dual-carb and big-engine builds — reach the carbs without pulling the motor.
#BY01Read the guide PMO ReferencePMO Carburetors: Triple-Throat Induction
The complete reference on PMO triple-throat carburetors for air-cooled Porsche — sizing, jetting, and setup.
PMORead the guide CH64 ChassisFlat Out Custom Shortened Pan Halves
Building a shortened dune buggy or kit car? Engineered pan halves put a straight floor under it without sectioning a stock VW pan.
#CH64Read the guideFrom the shop blog
3Shorter reads from the shop floorBig Washburn Carb Windows: What They Are and Why We Cut Them
The reasoning behind cutting the rear inner fenders open, before you read the full install guide.
Read the post BlogTunnel Access Plates: Why We Cut a Hole in Your Pan on Purpose
Why the center tunnel gets an access plate, and what it saves you the next time the linkage needs attention.
Read the post BlogSome Hot VWs That Came Through the Shop This Spring
A look at the cars on the lifts in Orange, California, and the work that went into them.
Read the postCan't find your job here?
Call the shop. If the guide isn't written yet, we'll walk you through it on the phone — fitment, torque, sequence, what to buy and what to skip.
(657) 438-7002Shop line — parts, fitment and technical questions. Orange, California.
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