Build your own adjustable fuel pressure regulator ;)

[oldeskewltoy]

Bean Bandit Wrote:on another note have you made any measurements (bolt spacing, diameter and depth of the piece that goes into the rail)?

if I remember correctly bolt spacing is 39mm and the protrusion is 10mm deep on a 11m diameter - I'm not sure on these figures at all though.

reason I ask if I'm not completely mistaken the Impreza WRX (GDB; 2010-) uses the above dimensions. Most Nissan, Mazda and other Subaru have the same dimensions for the protrusion but the bolt spacing is only ~32mm. Last but not least Hondas have the same bolt spacing (some are offset!) but no protrusion at all but seal with an O-ring.

20V also has offset spacing. I used a 20V TOM'S on my 16V (paid $50 for it on YJ) I have the fuel return running between the manifold runners 3 and 4