norman96(at)telus.net
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 Posted: Wed Nov 25, 2009 3:57 pm Post subject: CHT update - aircraft noise |
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Hi Ralph, I'm wondering how much quieter your airplane is with the combo of three blade prop and Vetterman mufflers. Is it noticeably quieter than other RV's?ThaNKS,
Norman Hunger
RV6A Delta BC
On 23-Nov-09, at 3:22 PM, Ralph E. Capen wrote:
[quote]As many of you may know, I have been obsessing a bit about my CHT's...to get them consistent.
Here's the setup:
IO360B1F6
9.2:1 pistons
AFP Fuel Injection
LASAR Ignition with CHT sender relocated to allow for testing
Vetterman Dual Crossover Heater/Mufflers
SamJames cowl and plenum
Advanced Flight Systems 3400 Engine Monitor
Oil Cooler mounted behind #4 cylinder
Air for both Heater/Mufflers behind #3 cylinder
For constant power setting, here's the consistency that I have achieved:
#1 and #3 cylinders run within three degrees (avg) of each other
#2 and #4 cylinders run within three degrees (avg) of each other
The #1/#3 cylinders run 8.5 degrees hotter (avg) than the #2/#4 cylinders
do not archive[b]
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