|
Thanks, Bill, for confirming my suspicion.
The 9 year old regulator I am using was purchased because it had a manifold
reference line and was listed as a regulator for boost. I assumed
(wrongly it appears) that because it was referenced to the manifold that it
would adjust fuel pressure for manifold "vacuum" as well as positive
boost.
After noting that some pressure regulators were for
"Boost" and others for "Vacuum/Boost" I came to suspect that the difference was
not just semantics in advertising. But, wanted someone who realllllyyyy
knew to put me straight.
Ed
----- Original Message -----
Sent: Thursday, September 21, 2006 3:42
PM
Subject: [FlyRotary] Re: Fuel Pressure
Regulator Vacuum or Boost??
Ed,
You are correct, the "boost reference" is only changed at more than
1 atmosphere. The usually more expensive vacuum and boost referenced unit
would lower the pressure at idle.
Bill Jepson
-----Original Message-----
From: joeh@pilgrimtech.com
To: flyrotary@lancaironline.net
Sent:
Thu, 21 Sep 2006 11:48 AM
Subject: [FlyRotary] Re: Fuel Pressure Regulator
Vacuum or Boost??
I presume your pressure gauge
remains steady as you adjust throttle ?
Yep, no real change
in FP over the entire range from idle to WOT.
Joe Hull
Cozy Mk-IV N31CZ (65 hrs - Rotary 13B NA)
Redmond (Seattle),
Washington
|