The controversy between carburetors and EFI has always been about complexity and price. Carburetors are simple—EFI is not. Carburetors are cheap—or at least cheaper than EFI. Those points have not ...

This is the twin TBI setup attached to the top of the new cross-ram manifold. Note that fuel enters the left TBI unit first and then on to the right unit before being returned to the tank. Although ...

We may receive a commission on purchases made from links. The throttle body is a vital component of a fuel-injected internal combustion engine. It has a pivoting butterfly valve or throttle plate to ...

This month we wanted to test electronic fuel injection (EFI) again. But this time we wanted to use a throttle body injection (TBI) system like the ones that came stock on GM trucks for many years, ...

When things are operating properly, most drivers don't give a second thought to what happens when pressing the accelerator pedal on a modern internal combustion engine (ICE) vehicle. Whether ...

Electronic fuel injection . It came to in the task of but it does much more: it controls several parameters of the engine's operation, can alter those parameters , and for future reviews. As a result, ...

The 1957 Corvette did something quietly radical: it took fuel injection out of the lab and the racetrack and put it on a ...

While the oil, air filter, and tires are all given the magic touch, the throttle body remains untouched for thousands and thousands of miles. It’s a simple butterfly valve. It should be fine. Right?