From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of David Leonard
Sent: Thursday, June 09, 2005
12:02 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Very
strange problem after installing new turbo
On 6/8/05, David
Staten <Dastaten@earthlink.net>
wrote:
Is the fuel pump capable of supporting the needed pressure ABOVE the
boost level? Perhaps this is a fuel pressure induced sag caused by too little
"RELATIVE" pressure above the deck pressure.
Just speculation, not based on experience
Dave
Another good guess. Yes, very capable. I demonstrated that
to my self back when my fuel pressure gauge was working properly they could
support in excess of 80 PSI with adequate flow. During the test today I
tried running just the 2nd pump, then both together. No change.
Also, worked well in the past with the other turbo pulling
38-40"MAP.
The more I think about, the detonation issue because of the advanced
timing is starting to make some sense. Will go retard the timing and see
what I get.