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Mark,
How do the threads look on the O2 sensor? Mine were boogered up
when I removed it. I still don’t know if it is due to different
threads or something else. I used the bung from the original exhaust
manifold, but the O2 sensor that Tracy
recommends.
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Mark Steitle
Sent: Saturday, January 12, 2008
9:06 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: URL for
HushPower
Bill,
The cowl has had the "Dolly Pardon" mod. So, no further cowl
modifications should be necessary. Hopefully, this exhaust system will
last. I found one crack that I hope was caused by not having a support
out near the rear. The HP-2 will be supported for sure. I haven't
installed the bung for the O2 sensor yet, plan to do that tomorrow. I
need to pick up a new O2 sensor as mine somehow got damaged.
Mark S.
On Jan 12, 2008 7:02 PM, Bill Bradburry <bbradburry@bellsouth.net> wrote:
Took me a
minute to figure out what I was looking at, Mark, but what are you going to do
to reinstall the O2 sensor? Looks like you will have to do a little cowl
mod as well?
I sure
wish I lived a little closer to your welder… :>) That is a
very clean looking install.
Bill
B
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
On Behalf Of Mark Steitle
Sent: Saturday, January 12, 2008
5:59 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re:
URL for HushPower
For rotorheads that are contemplating using (also the
mildly curious) the Flowmaster HP-2 "resonator" muffler,
I installed the HP-2 today on my 20B and was able to do a run-up. Bobby
Hughes and I both agree that the exhaust tone is much, much mellower with a
deeper tone. My Lighspeed ANR headset had no problem cancelling out this
low-frequency exhaust tone. While the overall sound level was still
pretty significant, the exhaust tone was much more pleasant to the ears.
The ear-piercing, glass shattering, nails-on-the-chalkboard,
make-you-bleed-from-the-ears, exhaust tone is totally tamed. The 3-blade
M/T prop is the primary noisemaker now. The test took place between two
rows of hangars, so I feel that DB readings are not very realistic. I'll
take those again out on the ramp and post the numbers. If the HP-2 holds
up to the pounding of the rotary's exhaust, I'll be a very happy camper.
Mark S.
On Jan
12, 2008 3:22 PM, Ed Anderson <eanderson@carolina.rr.com> wrote:
They
are both used stock Rx-7 turbos. one is the older model pre 89 and
the second is a later model 91 year. They both appear to be in working condition
in no nicks on the blades and they spin. I used compressed air to spin
the compressor wheels to they were really whizzing along.
One
came with my 91 turbo block and the other was given to me.
-----
Original Message -----
Sent: Saturday, January 12, 2008 3:46 PM
Subject: [FlyRotary] Re: URL for HushPower
Well,
then we just have to keep on looking for a "justification" for
you/your area/etc. :)
Just wait, I'll find something! :)
Thomas
How about: "..... I have two turbo sitting in my shop......."
...are they new/used? What's the scoop on them?
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