Originally Posted by
CrOwSoN15
Looking at making one for my ZT build, using part of a HO inlet that I was given last night.
I've recently picked up ally welding quite well, guys a work were quite surprised it was my second attempt
Couple of questions though,
I've seen inside a few plenums something that look like the end of a trumpet, there's one per cylinder, are they something to do with drawing the air into the ports? If that makes any sense
Are there any sensors that I'd need to fab into it? We've got a CNC laser at work so I can make a flange to fit the throttle body I was given too.
Any other help would be appreciated
the thing the shape of a trumpet inside the plenums is a "bellmouth", it is the "theoretically ideal" shape for a reduction in section, it is often found in the front of carbs etc, if you look at pictures of old F1 cars you can often see them, if done right it can increase the CFMs, reduce turbulence etc