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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
What is this?

What is this?




My best guess is this increases system pressure at higher boost levels.




Picture found here:http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/645425-today-touched-ground-7.html#post7088612

Old 11-28-2012, 03:57 PM
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Join Date: Oct 2007
Location: Calgary
Posts: 364
A regulator for sure. Where do the lines go?
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1981 411 rwhp, Ruf intercooler, 964 cams, Turbo Kraft injector blocks, Extrude honed intake, 7006 Turbo, Tial wastegate, RarlyL8 exhaust, MSD6al
Old 11-28-2012, 04:26 PM
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This is all the info I could find.

Quote:
Originally Posted by piero View Post
the multicolor small "bell" is a regulator for the fuel in returning"flow"
(I'm sorry ,but I just tell you what I heard today by the workshop
and in such a technical forum I feel a little shame
It sounds like it restricts returning flow off the fuel distributor.

I am guessing it would sense off of manifold boost pressure in addition to being in-line with the fuel return line off the fuel distributor.

Thus, if the fuel pumps can handle it this should increases system pressure on boost which should increase potential delivery pressure at the fuel injectors.

A maxed out CIS delivers less fuel at higher boost pressure. That is, a 425hp .8bar 3.5 motor will have more fuel than a 1.2 bar 3.0 425hp build.

This could be a way to offset this.

Old 11-28-2012, 05:00 PM
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