Post by
Chezedik »
https://forums.nicoclub.com/chezedik-u3691.html
Wed Dec 07, 2005 8:08 am
I have one, yet to install it though. The quality looks decent, and when you figure out exactly how simple it's job really is, you won't be to worried about it. It is basically a diaphragm with a spring. It uses vacuum to overcome some of the spring force at idle, and as manifold pressure increases, it raises pressure by assisting the spring in opening the line, and allowing pressure to rise. When you adjust it, you simply bring the spring closer to coil bind, with more stored energy, it takes more pressure to equal spring pressure. This raises fuel pressure. Anyone have anything else to add?