DOHC EFI modification underway

[davidimurray]

Originally Posted by mr henderson

Inlet manifold sizing is a lot to do with gas speed. If the diameter is too large, what happens is that the gas slows down and doesn't fill the cylinder so well at lower speeds, and can lead to a loss of torque. In a sporty car that may not matter as much as it would in a shopping car.

But looking at the mods that have been made the diameter should be the same, the difference is the shortened runners which will change the resonance of the system.