Galería de proyectos

Galería de proyectos

Firmowy Warsztat LPG ALEX

LPG installation for Lexus RX350

Lexus RX350
Dual injection: indirect and direct
LPG/CNG controller 2x controller: ALEX IDEA
LPG/CNG injectors 6x Barracuda 130 nl
Filter Ultra360
LPG reducer / LPG pressure regulator SHARK1500
Mapsensor 2x PTS-01
Control switch / Control panel RGB
Fuel filler under the flap
See a very interesting copy after conversion to LPG: Lexus RX 350 from 2018. In this case, the gas installation was a great challenge.
Why? In the engine of this car, fuel is injected directly into the combustion chambers and indirectly into the intake manifold, i.e. mixed injection (DI + MPI).

Why do I need extra gasoline injection in the LPG system?

In PB direct injection engines, the injectors are located directly in the combustion chambers, and their tips are exposed to high temperature and the effects of combustion products.
So the injectors need gasoline to clean themselves, and the flowing fuel could cool them. Therefore, the LPG installation for direct injection engines should not permanently disable the petrol injectors.

LPG for mixed injection (direct and indirect)

Lexus RX350 from 2018. The car has a 3.5-liter, 6-cylinder V-engine with a capacity of 313 horses. The car has a mixed injection.

Despite having six cylinders, it has 12 petrol injectors! In addition, indirect injection and direct injection work unpredictably, ie they can operate separately or simultaneously depending on load, temperature, etc. Exemplary performance on gas is very difficult, but not for the ALEX IDEA system.

In this case, we used two 3 cyl controllers, which receive signals from all petrol injectors and then convert them to 6 Barracuda Enhanced Gas Injectors. Comparing the solution where we have to use one gas injection for each gasoline injection, we save space under the hood, because instead of 12 injectors, we install 6, which affects the overall aesthetics, as well as the cost of assembly.