Today's Message Index:
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1. 08:30 AM - Re: intake air straightener (AirEupora)
2. 12:23 PM - Re: Re: intake air straightener (j. davis)
3. 05:31 PM - RPM (BobbyPaulk@comcast.net)
Message 1
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| Subject: | Re: intake air straightener |
I bought one, but could not use it. I also bought the Cobra head. What I did
was to make the straightener in the cobra head. I cut two pieces of aluminum
and cut a notch then riveted them into the cobra head.
You need to play around with the position of the vanes to find the best position.
I found that 'X' was the best for my installation. My number 5 cylinder always
run lean. Once I place the vanes in the number 5 cylinder still ran lean,
but I tilted the carb and it richen to the point that both 5 & 6 run about
the same temps now. Both five and six run leaner in cruise, but rich at full
throttle.
Rick Stockton
N120EJ
Europa XS,
3000L, Whirlwind ground adjustable
Two cylinders off from overheating, 2 & 4.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=429522#429522
Message 2
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| Subject: | Re: intake air straightener |
What do you mean by "Two cylinders off from overheating, 2 & 4." ?
On 28 Aug 2014 11:33, "AirEupora" <AirEupora@sbcglobal.net> wrote:
> AirEupora@sbcglobal.net>
>
> I bought one, but could not use it. I also bought the Cobra head. What
> I did was to make the straightener in the cobra head. I cut two pieces of
> aluminum and cut a notch then riveted them into the cobra head.
>
> You need to play around with the position of the vanes to find the best
> position. I found that 'X' was the best for my installation. My number 5
> cylinder always run lean. Once I place the vanes in the number 5 cylinder
> still ran lean, but I tilted the carb and it richen to the point that both
> 5 & 6 run about the same temps now. Both five and six run leaner in
> cruise, but rich at full throttle.
>
> Rick Stockton
> N120EJ
> Europa XS,
> 3000L, Whirlwind ground adjustable
>
> Two cylinders off from overheating, 2 & 4.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=429522#429522
>
>
Message 3
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DonB,
I just flew today and observed the following:
My full throttle RPM at 100 MPH is 2830. ( From 60 to 1000' )
EGT's are 1200 to 1250 on #1 thru 4 and 6.
Number 5 is about 1300 ~ 1310. Outside air temp 92 degrees.
My Ram Air ducts at the rear tuck back toward the front at about a 45 degree angle
following the curvature of the heads.
My conditional insp. is due in Sept and I am planning on tilting the bottom of
the carb a little more toward the #5 cylinder.
I still have not heard from anyone who has drilled out the aerator that sits on
top of the needle jet and the passage to it.
Bobby ( age 76 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 290 Needle Jet
Status - Flying 224 hrs.
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