Today's Message Index:
----------------------
1. 12:25 AM - Re: Aero Carb (peter disher)
2. 04:14 AM - Re: Aero Carb (Lynn Matteson)
3. 09:17 AM - Re: July 2009 Jaba Chat is out (dons701)
4. 11:13 AM - Re: Aero Carb (Roger Lee)
5. 02:41 PM - Re: Re: Aero Carb (Lynn Matteson)
6. 03:50 PM - Re: Aero Carb (Peter Harris)
7. 05:43 PM - Re: Aero Carb (peter disher)
8. 08:24 PM - Here's an idea that DIDN'T work (Lynn Matteson)
9. 09:15 PM - Re: Here's an idea that DIDN'T work (peter disher)
10. 09:59 PM - Re: Here's an idea that DIDN'T work (Peter Harris)
11. 10:10 PM - Re: Here's an idea that DIDN'T work (Richard Girard)
Message 1
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G'Day Brad. I put the RevMaster 40mm carby on my engine and find it just
great, all though, I have never used the Bing, so I can't compair the two.
I will say that I much perfered the design of the RevMaster, over the Aero
Carb, for reason that, the sliding action of the RMs "Guillotine slide" is
pulled on centre line and in my opion, would have far less chance of racking
and then possibly jaming, you would not want this to happen.
Have a chat with Peter Harris in QLD.
Pete Disher,
kit 30
VH-PDI
----- Original Message -----
From: "Rosalie" <rosestar@sonic.net>
Sent: Sunday, September 06, 2009 10:32 AM
Subject: JabiruEngine-List: Aero Carb
>
> Hello. I fly a Zodiac XL with a Jabiru 3300. I am considering replacing
> the Bing carby with an Aero Carb. I've read a lot about the Aero Carb.
> Now I would like to find information from those who have actually used it
> on the Jab 3300. What are the good points? Are there any criticisms or
> bad points? I also fly certified aircraft so I am used to having mixture
> control on those planes. I live near mountains so getting over them is a
> must...I sometimes fly short distances as high as 13500 feet. Any
> information from experience that you might have is greatly appreciated.
>
> Brad DeMeo
> N601BD
> CH601XL
> California
>
>
>
Message 2
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Have a look at the Rotec TBI-40 for comparison....it is...in my
opinion...a far better-made piece of work than the A'carb. And the
operation is nearly perfect. I can't compare it with the RevMaster,
as I haven't seen it.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 758.3 hrs
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying
On Sep 6, 2009, at 3:24 AM, peter disher wrote:
> <pjdisher@bigpond.com>
>
> G'Day Brad. I put the RevMaster 40mm carby on my engine and find it
> just great, all though, I have never used the Bing, so I can't
> compair the two.
> I will say that I much perfered the design of the RevMaster, over
> the Aero Carb, for reason that, the sliding action of the RMs
> "Guillotine slide" is pulled on centre line and in my opion, would
> have far less chance of racking and then possibly jaming, you would
> not want this to happen.
> Have a chat with Peter Harris in QLD.
> Pete Disher,
> kit 30
> VH-PDI
>
> ----- Original Message ----- From: "Rosalie" <rosestar@sonic.net>
> To: <jabiruengine-list@matronics.com>
> Sent: Sunday, September 06, 2009 10:32 AM
> Subject: JabiruEngine-List: Aero Carb
>
>
>>
>> Hello. I fly a Zodiac XL with a Jabiru 3300. I am considering
>> replacing the Bing carby with an Aero Carb. I've read a lot about
>> the Aero Carb. Now I would like to find information from those who
>> have actually used it on the Jab 3300. What are the good points?
>> Are there any criticisms or bad points? I also fly certified
>> aircraft so I am used to having mixture control on those planes.
>> I live near mountains so getting over them is a must...I sometimes
>> fly short distances as high as 13500 feet. Any information from
>> experience that you might have is greatly appreciated.
>>
>> Brad DeMeo
>> N601BD
>> CH601XL
>> California
>>
>>
>>
>
>
Message 3
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| Subject: | Re: July 2009 Jaba Chat is out |
It would have been more convenient if they stated engine serial numbers along with
dates. This may be obvious for some engines of course. But it is very nice
info none the less. Thanks Craig
--------
Zenith 701 #76120
Jabiru #2456 51 hours
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261749#261749
Message 4
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My hanger mate had an AeroCarb on his 3300 and it always had EGT temp issues that
never could get adjusted out even with different needles and talking with the
factory. He went to the Bing 94 with a 255 standard main jet and the temps
came down 150F. He is going to try a 260 main jet as others have suggested and
that should make it perfect through out the entire operating range. The EGT's
with the 255 main was just a little higher than he liked. I should know the out
come in a week or so. My guess it will be right on through out the rpm range
with the new 260 jet.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261759#261759
Message 5
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Just to add another experience, I recently installed a Rotec TBI-40,
and now my EGT's are usually within 60 degrees F. of each other at
about 1320-1380, and the CHT's are usually within 3 to 20 degrees F.
of each other at about the 285-320 range. And this is with my CHT's
installed in a hotter location than the rest of the world. I should
mention that this is running the engine "lean of peak EGT", of which
I have become a rabid fan. Unless you try lean of peak EGT, you don't
know what your missing. The fuel saving is pretty impressive.
With the TBI, there are no needles to fuss with, and...my own
experience...no calls to the factory. I did email them and tell them
that I got the thing installed within 4 days after buying it at
Oshkosh, and that included flying home.
Lynn Matteson (one VERY happy customer)
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 760.3 hrs
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying
On Sep 6, 2009, at 2:12 PM, Roger Lee wrote:
> <ssadiver1@yahoo.com>
>
> My hanger mate had an AeroCarb on his 3300 and it always had EGT
> temp issues that never could get adjusted out even with different
> needles and talking with the factory. He went to the Bing 94 with a
> 255 standard main jet and the temps came down 150F. He is going to
> try a 260 main jet as others have suggested and that should make it
> perfect through out the entire operating range. The EGT's with the
> 255 main was just a little higher than he liked. I should know the
> out come in a week or so. My guess it will be right on through out
> the rpm range with the new 260 jet.
>
> --------
> Roger Lee
> Tucson, Az.
> Light Sport Repairman - Maintenance Rated
> Rotax Service Center
> 520-574-1080
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=261759#261759
>
>
Message 6
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Right Pete,
I had the Revmaster slide type carb on a Revmaster and it was faultless.I
thought the Aerocarb would work the same but it kept on jamming.
Peter
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of peter
disher
Sent: Sunday, 6 September 2009 5:24 PM
Subject: Re: JabiruEngine-List: Aero Carb
<pjdisher@bigpond.com>
G'Day Brad. I put the RevMaster 40mm carby on my engine and find it just
great, all though, I have never used the Bing, so I can't compair the two.
I will say that I much perfered the design of the RevMaster, over the Aero
Carb, for reason that, the sliding action of the RMs "Guillotine slide" is
pulled on centre line and in my opion, would have far less chance of racking
and then possibly jaming, you would not want this to happen.
Have a chat with Peter Harris in QLD.
Pete Disher,
kit 30
VH-PDI
----- Original Message -----
From: "Rosalie" <rosestar@sonic.net>
Sent: Sunday, September 06, 2009 10:32 AM
Subject: JabiruEngine-List: Aero Carb
>
> Hello. I fly a Zodiac XL with a Jabiru 3300. I am considering replacing
> the Bing carby with an Aero Carb. I've read a lot about the Aero Carb.
> Now I would like to find information from those who have actually used it
> on the Jab 3300. What are the good points? Are there any criticisms or
> bad points? I also fly certified aircraft so I am used to having mixture
> control on those planes. I live near mountains so getting over them is a
> must...I sometimes fly short distances as high as 13500 feet. Any
> information from experience that you might have is greatly appreciated.
>
> Brad DeMeo
> N601BD
> CH601XL
> California
>
>
>
Checked by AVG - www.avg.com
17:50:00
Message 7
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Thanks Peter,
yes, I just love my RM carby, its simplicity at its best, with mixture
control and idle cutoff all thrown in, but I must say, it did take a bit of
effort to set up and run correctly. I find that my speeds, revs and fuel
consumption is much the same as Buz R.
Pete D
----- Original Message -----
From: "Peter Harris" <peterjfharris@bigpond.com>
Sent: Monday, September 07, 2009 8:44 AM
Subject: RE: JabiruEngine-List: Aero Carb
> <peterjfharris@bigpond.com>
>
> Right Pete,
> I had the Revmaster slide type carb on a Revmaster and it was faultless.I
> thought the Aerocarb would work the same but it kept on jamming.
> Peter
>
> -----Original Message-----
> From: owner-jabiruengine-list-server@matronics.com
> [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of peter
> disher
> Sent: Sunday, 6 September 2009 5:24 PM
> To: jabiruengine-list@matronics.com
> Subject: Re: JabiruEngine-List: Aero Carb
>
> <pjdisher@bigpond.com>
>
> G'Day Brad. I put the RevMaster 40mm carby on my engine and find it just
> great, all though, I have never used the Bing, so I can't compair the two.
> I will say that I much perfered the design of the RevMaster, over the Aero
> Carb, for reason that, the sliding action of the RMs "Guillotine slide" is
> pulled on centre line and in my opion, would have far less chance of
> racking
>
> and then possibly jaming, you would not want this to happen.
> Have a chat with Peter Harris in QLD.
> Pete Disher,
> kit 30
> VH-PDI
>
> ----- Original Message -----
> From: "Rosalie" <rosestar@sonic.net>
> To: <jabiruengine-list@matronics.com>
> Sent: Sunday, September 06, 2009 10:32 AM
> Subject: JabiruEngine-List: Aero Carb
>
>
>>
>> Hello. I fly a Zodiac XL with a Jabiru 3300. I am considering replacing
>> the Bing carby with an Aero Carb. I've read a lot about the Aero Carb.
>> Now I would like to find information from those who have actually used it
>> on the Jab 3300. What are the good points? Are there any criticisms or
>> bad points? I also fly certified aircraft so I am used to having mixture
>> control on those planes. I live near mountains so getting over them is a
>> must...I sometimes fly short distances as high as 13500 feet. Any
>> information from experience that you might have is greatly appreciated.
>>
>> Brad DeMeo
>> N601BD
>> CH601XL
>> California
>>
>>
>>
>>
>
>
> Checked by AVG - www.avg.com
> 17:50:00
>
>
>
Message 8
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| Subject: | Here's an idea that DIDN'T work |
Last week or so, I mentioned I was going to build a "turbulator" for
my induction system. Here are pictures of what I built and what it
looks (looked) like installed.
I cut and bent it out of stainless steel. The little "stems" sticking
out of the tops of the vanes are what is used to hold it in place. I
bent the vanes to about a 45 degree angle. After installation, I ran
the engine up, and it seemed like the rpm's were fine, but on
climbout it was about 200 rpm down, and pretty weak in climb. I
thought it might have been the quite strong wind I was fighting, but
the next day wasn't any better so I removed the device and power was
restored. In retrospect, I think if I had made the outside a complete
circle, and let the center of the vanes be more open...in other
words, just have the vanes at the periphery, I think it might have
worked. But I do not have the means to saw to the inside of a circle
on my bandsaw...no blade welding attachment. I may try this
experiment again if I can find a way to make it here at home.
By the way, this device is not intended to rotate. It is just
supposed to make the air rotate, or become turbulent.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 760.3 hrs
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying
do not archive
On Sep 6, 2009, at 9:30 PM, mhubel wrote:
> --> Kitfox-List message posted by: "mhubel" <mhubel@nemon.com>
>
> I am considering using the Rotac TBI 40 for a Jabiru 3300 in a
> Zenith CH601XL.
>
> I wonder what your experience was with the primer button on the
> regulator, did you connect it to a cable in the cabin? If so just
> what sort of assembly was used?
>
> I was also wondering how the mixture cable was supported, I don't
> see any method of supporting the mixture cable in the pictures on
> the ROTAC web site.
>
> --------
> Mark Hubelbank
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=261793#261793
>
>
Message 9
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| Subject: | Re: Here's an idea that DIDN'T work |
Hi Lynn,
Late last year I tried the very same thing, a product made here, all ready
aviable in Australia and distrubted to the car (auto) industry. Made of SS,
6 vains and enclosed in a tube the diameter of the vains and a 1/2 long.
cost me $165.00.
It did NOT work, just like your results NBG. I did get my money back.
Pete D
VH-PDI
----- Original Message -----
From: "Lynn Matteson" <lynnmatt@jps.net>
Sent: Monday, September 07, 2009 1:21 PM
Subject: JabiruEngine-List: Here's an idea that DIDN'T work
> Last week or so, I mentioned I was going to build a "turbulator" for
> my induction system. Here are pictures of what I built and what it
> looks (looked) like installed.
>
>
--------------------------------------------------------------------------------
>
> I cut and bent it out of stainless steel. The little "stems" sticking
> out of the tops of the vanes are what is used to hold it in place. I
> bent the vanes to about a 45 degree angle. After installation, I ran
> the engine up, and it seemed like the rpm's were fine, but on
> climbout it was about 200 rpm down, and pretty weak in climb. I
> thought it might have been the quite strong wind I was fighting, but
> the next day wasn't any better so I removed the device and power was
> restored. In retrospect, I think if I had made the outside a complete
> circle, and let the center of the vanes be more open...in other
> words, just have the vanes at the periphery, I think it might have
> worked. But I do not have the means to saw to the inside of a circle
> on my bandsaw...no blade welding attachment. I may try this
> experiment again if I can find a way to make it here at home.
>
> By the way, this device is not intended to rotate. It is just
> supposed to make the air rotate, or become turbulent.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062, 760.3 hrs
> Sensenich 62"x46" Wood prop
> Electroair direct-fire ignition system
> Rotec TBI-40 injection
> Status: flying
> do not archive
>
>
> On Sep 6, 2009, at 9:30 PM, mhubel wrote:
>
>> --> Kitfox-List message posted by: "mhubel" <mhubel@nemon.com>
>>
>> I am considering using the Rotac TBI 40 for a Jabiru 3300 in a
>> Zenith CH601XL.
>>
>> I wonder what your experience was with the primer button on the
>> regulator, did you connect it to a cable in the cabin? If so just
>> what sort of assembly was used?
>>
>> I was also wondering how the mixture cable was supported, I don't
>> see any method of supporting the mixture cable in the pictures on
>> the ROTAC web site.
>>
>> --------
>> Mark Hubelbank
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=261793#261793
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 10
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| Subject: | Here's an idea that DIDN'T work |
Lynn
I tried a device like that and fitted about 6" upstream from the carb. but
did not see measurable improvement and it limited power so that the last
11/2" of throttle made no effect.
After 12 months of trials using a Jenvey throttle body and two injectors I
made a number of different plenums to replace the induction collector
supplied.
Because the Jab collector is fed from the end I found that fuel mix
distribution was not uniform throughout the power range and at times uneven
distribution R to L was causing the engine to vibrate. Also at WOT when the
butterfly is horizontal there is a significant reduction in turbulence and a
tendency for the heavier fuel droplets to accumulate at the far end,
enriching #1 and #2.
Using a bowl shaped plenum (as attached here) the effect was so bad that the
engine would shut down over the last inch of throttle with #1 and#2 miss
firing rich.
Based on static RPM I got no extra power from the plenum because the engine
failed rich every time.I spent hours trying to figure out why the breakdown.
I was able to correct this problem by fitting a 11/2" wide plate inside my
plenum placed about 1/2" directly in front of the inlet, like a big baffle.
Then the setup behaved exactly like the Jab collector. #1 and2 were rich at
WOT but the engine did not break down. I got the same max RPM, but noticed
that there was no increase in RPM for the last inch of throttle opening.
I have the same effect with my jab collector.
>From all of this I deduce that
1. The collector as supplied suffers from internal losses which limit
max power at WOT. and prevent rich failure of #1 and#2
2. There is the potential to make a plenum that would solve the problem
provided it has symmetrical outlets and is fed from the centre at the
bottom.
3. There is the potential to get more uniform distribution of the
charge and with less induction losses there is the potential to get more
power.
That will be my next project but at present I have a lot of other
commitments.
Cheers
Peter
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Lynn
Matteson
Sent: Monday, 7 September 2009 1:22 PM
Subject: JabiruEngine-List: Here's an idea that DIDN'T work
Last week or so, I mentioned I was going to build a "turbulator" for
my induction system. Here are pictures of what I built and what it
looks (looked) like installed.
Checked by AVG - www.avg.com
17:51:00
Message 11
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| Subject: | Re: Here's an idea that DIDN'T work |
Lynn, Just a thought, but any airfoil surface, even a flat plate will stall
at about a 12 to 16 degrees angle of attack. Before you give up, try
bending the vanes to something well below this, say 8 to 10 degrees.
Rick Girard
On Sun, Sep 6, 2009 at 10:21 PM, Lynn Matteson <lynnmatt@jps.net> wrote:
> Last week or so, I mentioned I was going to build a "turbulator" for my
> induction system. Here are pictures of what I built and what it looks
> (looked) like installed.
>
>
> I cut and bent it out of stainless steel. The little "stems" sticking out
> of the tops of the vanes are what is used to hold it in place. I bent the
> vanes to about a 45 degree angle. After installation, I ran the engine up,
> and it seemed like the rpm's were fine, but on climbout it was about 200 rpm
> down, and pretty weak in climb. I thought it might have been the quite
> strong wind I was fighting, but the next day wasn't any better so I removed
> the device and power was restored. In retrospect, I think if I had made the
> outside a complete circle, and let the center of the vanes be more open...in
> other words, just have the vanes at the periphery, I think it might have
> worked. But I do not have the means to saw to the inside of a circle on my
> bandsaw...no blade welding attachment. I may try this experiment again if I
> can find a way to make it here at home.
>
> By the way, this device is not intended to rotate. It is just supposed to
> make the air rotate, or become turbulent.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062, 760.3 hrs
> Sensenich 62"x46" Wood prop
> Electroair direct-fire ignition system
> Rotec TBI-40 injection
> Status: flying
> do not archive
>
>
> On Sep 6, 2009, at 9:30 PM, mhubel wrote:
>
> --> Kitfox-List message posted by: "mhubel" <mhubel@nemon.com>
>>
>> I am considering using the Rotac TBI 40 for a Jabiru 3300 in a Zenith
>> CH601XL.
>>
>> I wonder what your experience was with the primer button on the regulator,
>> did you connect it to a cable in the cabin? If so just what sort of assembly
>> was used?
>>
>> I was also wondering how the mixture cable was supported, I don't see any
>> method of supporting the mixture cable in the pictures on the ROTAC web
>> site.
>>
>> --------
>> Mark Hubelbank
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=261793#261793
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
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