Single Overhead Cam is what the letters SOHC stand for. Multi-Point Fuel Injection is what MPFI or MPI stands for.
MPFI= Multi Port Fuel Injection
There is no difference. Petrol is just another name for gasoline. MPFI just means Multi-Point Fuel Injection. A petrol (gasoline) engine can be MPFI or it can have a carburetor. It can have many different ways to get gasoline (petrol) to the cylinders.
Frederick William lanchester invented the earliest MPFI engine
The first MPFI technology is believed to have been invented in 1925 by Jonas Hesselman. MPFI technology refers to Multi Point Fuel Injection systems.
Well MPFI is Multi-port fuel-injection and MPFI cooling system well my guess is that your wondering what cools the MPFI? Well in that case its the gasoline it shoots as it runs through the injectors it cools them down that's why its bad to run a Fuel injected car out of Gas...
On a Saturn S-series car, the cars one of two types of fuel injection, either throttle body injection (TBI) on 1994 and earlier SOHC engines, or multi-port fuel injection (MPFI) on 1995 and later SOHC engines and on all DOHC engines. TBI uses a unit mounted on the air intake manifold, just like a carburetor would be. MPFI uses a more complicated assembly mounted behind the engine. Both systems can be found by tracing the air intake. Neither is really the same as a carburetor, though.
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"SOHC" Means Single Over head Cam and DOHC means Dual (2) Over Head Cam. Example: on lately Ford Mustangs , It comes with 4.6L SOHC and DOHC Engines, which basically it will tell you whether there is/are 1 or 2 camshafts over each cylinder head.
Well MPFI is Multi-port fuel-injection and MPFI cooling system well my guess is that your wondering what cools the MPFI? Well in that case its the gasoline it shoots as it runs through the injectors it cools them down that's why its bad to run a Fuel injected car out of Gas...
Multi point fuel injection
1953 Chevrolet corvette
carb: 4 to 6 psi tbi: 9 to 13 psi mpfi turbo: 26 to 32 psi mpfi non turbo: 41 to 47 psi