Trumpets

[chedder]

Anybody know the benefits of longer or shorter trumpets in the Plenum chamber?
Am sure I read somewhere that longer ones increase low down torque but can't be certain what the benefits of shorter ones are

[GreenV8S]

chedder said:

Anybody know the benefits of longer or shorter trumpets in the Plenum chamber?
Am sure I read somewhere that longer ones increase low down torque but can't be certain what the benefits of shorter ones are

Generally, the opposite i.e. less low-down torque and more torque at higher revs. But this depends on the overall setup of the engine and how well it breaths throughout the rev range - no good putting a short intake on an engine with a stump puller, and no good putting a long intake on something designed to scream.

[pwd95]

What about wider ones then?