Today's Message Index:
----------------------
1. 07:18 AM - Re: Fw: cooling (The Meiste's)
2. 07:38 AM - Re: Fw: cooling (Benford2@aol.com)
3. 08:10 AM - Re: Fw: cooling (Don Walker)
4. 08:54 AM - Re: Stratus cooling data (billvt@together.net)
5. 09:57 AM - Fuel Management Toys (Randall Stout)
6. 01:01 PM - Continental 0-200 Engine Mount Jig UK Builders (Clive Richards)
7. 01:48 PM - Re: Fuel Management Toys (Fred or Sandy Hulen)
8. 02:09 PM - Re: Fuel Management Toys (Johann G.)
9. 02:40 PM - Re: Stratus cooling data (Thilo Kind)
10. 03:05 PM - Fuel Management (TOMGILES@aol.com)
11. 05:39 PM - Re: Fw: cooling (Wayne McIntosh)
12. 08:34 PM - Re: Fuel Management Toys (Randall Stout)
Message 1
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--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> Conclusions: The heat transfer to coolant is good. The flow of water
is good.
> The air flow and the efficiency of the golf radiator are not good. Joe
recommended a new radiator. He didn't like the round tubes and the design
efficiency of the Golf.
> One fix may be ducted air to the radiator.
Don,
Great job, & thanks for taking the time to do this test for us!
Just as I suspected .... the VW rad is just not up to the task we are asking
it to do.
As for the ducting to the rad, I've already tried this in a crude sort of
way. I made side fins on my rad brackets, they are about 3" long and are
angled at about 45 degrees. This works pretty good at scooping a little
extra air for that poor rad (I can tell by the bugs splattered on them after
each flight). I'd say it helped cool my water temps about 5 degrees (but
still not enough).
Thanks again for your report!
Kelly
Message 2
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--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/29/2003 8:19:05 AM Mountain Daylight Time,
meiste@essex1.com writes:
>
> > Conclusions: The heat transfer to coolant is good. The flow of water
> is good.
> > The air flow and the efficiency of the golf radiator are not good. Joe
> recommended a new radiator. He didn't like the round tubes and the design
> efficiency of the Golf.
> > One fix may be ducted air to the radiator.
>
>
> Don,
> Great job, & thanks for taking the time to do this test for us!
> Just as I suspected .... the VW rad is just not up to the task we are asking
> it to do.
> As for the ducting to the rad, I've already tried this in a crude sort of
> way. I made side fins on my rad brackets, they are about 3" long and are
> angled at about 45 degrees. This works pretty good at scooping a little
> extra air for that poor rad (I can tell by the bugs splattered on them after
> each flight). I'd say it helped cool my water temps about 5 degrees (but
> still not enough).
> Thanks again for your report!
>
> Kelly
>
>
A three degree drop through a radiator is probably more a fuction of air flow
through it rather than a small size.
Message 3
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Seal-Send-Time: Sun, 29 Jun 2003 10:10:22 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
I agree. "A three degree drop through a radiator is probably more a function
of air flow
through it rather than a small size." Benford
This is what I would approach first. Joe just felt like the radiator design
was not as efficient as it should/could be. The first culprit here is surely air
flow, but he did lean toward finding a way to run steady below 200 degrees
in order to be able to climb hard for an extended period. He runs his gyro wide
open with a similar reduction unit on his Soob ALL the time while doing routines
at fly-ins and shows.
Don Walker
----- Original Message -----
From: Benford2@aol.com
To: zenith-list@matronics.com
Sent: Sunday, June 29, 2003 9:37 AM
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/29/2003 8:19:05 AM Mountain Daylight Time,
meiste@essex1.com writes:
>
> > Conclusions: The heat transfer to coolant is good. The flow of water
> is good.
> > The air flow and the efficiency of the golf radiator are not good. Joe
> recommended a new radiator. He didn't like the round tubes and the design
> efficiency of the Golf.
> > One fix may be ducted air to the radiator.
>
>
> Don,
> Great job, & thanks for taking the time to do this test for us!
> Just as I suspected .... the VW rad is just not up to the task we are asking
> it to do.
> As for the ducting to the rad, I've already tried this in a crude sort of
> way. I made side fins on my rad brackets, they are about 3" long and are
> angled at about 45 degrees. This works pretty good at scooping a little
> extra air for that poor rad (I can tell by the bugs splattered on them after
> each flight). I'd say it helped cool my water temps about 5 degrees (but
> still not enough).
> Thanks again for your report!
>
> Kelly
>
>
A three degree drop through a radiator is probably more a fuction of air flow
through it rather than a small size.
Message 4
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| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: "billvt@together.net" <billvt@together.net>
Don,
I do not have a CHT, only oil and water temps.
Bill
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
Hi Bill.
What was your CHT on that trip? Maybe I am expecting too much. My Cht
stays 205 to 210 and the oil never above 190. I don't have water temp
gauge. Don Walker
Message 5
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| Subject: | Fuel Management Toys |
--> Zenith-List message posted by: Randall Stout <n282rs@sbcglobal.net>
Hey Guys
I thought I'd pass this along especially for those of you who are using a header
tank as a primary and refilling it from your wing tanks.
I just went through a major battle trying to get my engine to run descent. I found
that the fix was to either install a different carb or install a header tank
that I could gravity feed the carb with. I opted for the header tank. My carb
can't take a fuel pump pushing on the fuel.
After installing the tank, I started looking for some way of notifying me that it was getting low on fuel. This is what I found: http://www.cruzpro.com/f30.html . It's a fuel gauge that is programmable. You tell it how much fuel your tank holds. It works with most all senders, displays gallons, liters, or percent. It has a high and low alarm, to let me know when to turn the fuel pump on and back off again. It also can display the amount of fuel used on a trip as long as you don't refill the tank in flight. This feature is kinda useless for me as I will probably be refilling the header every 30-40 minutes.
They also have a more accurate model that can be "trained" for odd shaped tanks http://www.cruzpro.com/fu30.html , as well as a lot of other neat toys.
Randy Stout
VW powered CH601HD
n282rs@sbcglobal.net
Message 6
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| Subject: | Continental 0-200 Engine Mount Jig UK Builders |
--> Zenith-List message posted by: "Clive Richards" <stephen@crichards.flyer.co.uk>
Hi UK Builders
Ray Lasnier has a profesionaly made Jig available in the UK for manufacturing a
Continental 0-200 engine mount.
Clive Richards for
Ray Lasnier CH601HD 90% G CBDG
Message 7
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| Subject: | Re: Fuel Management Toys |
--> Zenith-List message posted by: "Fred or Sandy Hulen" <hulens61@birch.net>
Randolf,
The fuel guages you referenced are very interesting, but they don't quote
any prices on the web site. Have you inquired and could you advise us of the
costs of the two?
Fred
do not archive
Message 8
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| Subject: | Fuel Management Toys |
--> Zenith-List message posted by: "Johann G." <johann@gi.is>
Around $ 99 for the less expensive gauge.
This agent is in Florida:
http://www.emarineinc.com/products/monitors/f30.html
Best regards,
Johann G.
Iceland.
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com]On Behalf Of Fred or Sandy
Hulen
Subject: Re: Zenith-List: Fuel Management Toys
--> Zenith-List message posted by: "Fred or Sandy Hulen"
<hulens61@birch.net>
Randolf,
The fuel guages you referenced are very interesting, but they don't quote
any prices on the web site. Have you inquired and could you advise us of the
costs of the two?
Fred
do not archive
Message 9
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| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: "Thilo Kind" <thilo.kind@gmx.net>
Hi kelly,
sorry, my fault, I didn't express myself very clear. The ZAc supplied rads
for both engines are obviously identical. However, Rotax sells a rad
especially for the 912, which is much smaller than the ZAC supplied unit.
Thilo Kind
----- Original Message -----
From: "The Meiste's" <meiste@essex1.com>
Subject: Re: Zenith-List: Stratus cooling data
> --> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
>
> > The rad supplied by ZAC is way larger than the original radiator for the
> > Rotax 912, so I believe it should be sufficient for the Stratus as well.
> >
> > Thilo Kind
>
> Hi Thilo,
> Things must have changed, as my installation instructions that came with
my
> Stratus FWF package from ZAC (in 2000) shows the same rad and mounting
> brackets for the 912 installation and the Stratus installation. Only
> difference in the instructions is the location of one hose coming from the
> rad.
> What I now hear is for a 100 HP (Stratus) engine you will need a min of
300
> cubic inches of radiator volume for proper cooling. The VW rad supplied by
> ZAC in my FWF pac is only about 285 cubic inches. Fine for the 80 HP Rotax
> ..... but not my 100 HP Stratus.
>
> Kelly
>
>
Message 10
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--> Zenith-List message posted by: TOMGILES@aol.com
The Grand Rapids EIS system has a fuel flow monitor as an option. Just add
your Header and Wing tanks combined starting fuel and enter that figure. My
fuel monitor is after leaving the Header tank so this works fine.
Message 11
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--> Zenith-List message posted by: "Wayne McIntosh" <mcintosh3017@insightbb.com>
I may be way off base here so feel free to hit the delete button. Since I do
not plan to use a Subaru I have not followed this thread too carefully. Do
not get me wrong I know some guys flying the Subaru and they are a good
engine. The thing that set off the light in my small brain was the mention
of a VW radiator. I fix cars for a living and i remember some VW Rabbits and
Jettas that had cooling problems. The cure was a new radiator, these cars
has aluminum radiators with plastic tanks. The coolant hoses both went to
the same tank on the same side of the radiator. There was a baffle inside
the tank between the hoses that would crack. This crack would let the
coolant bypass the radiator tubes and caused overheating. Like I said this
may not apply since I have not been paying much attention, just hit delete.
Wayne McIntosh Lafayette, IN
----- Original Message -----
From: "Don Walker" <dwalk3dw@msn.com>
Subject: Re: Zenith-List: Fw: cooling
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> I agree. "A three degree drop through a radiator is probably more a
function of air flow
> through it rather than a small size." Benford
> This is what I would approach first. Joe just felt like the radiator
design was not as efficient as it should/could be. The first culprit here is
surely air flow, but he did lean toward finding a way to run steady below
200 degrees in order to be able to climb hard for an extended period. He
runs his gyro wide open with a similar reduction unit on his Soob ALL the
time while doing routines at fly-ins and shows.
> Don Walker
>
>
> ----- Original Message -----
> From: Benford2@aol.com
> To: zenith-list@matronics.com
> Sent: Sunday, June 29, 2003 9:37 AM
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: Benford2@aol.com
>
> In a message dated 6/29/2003 8:19:05 AM Mountain Daylight Time,
> meiste@essex1.com writes:
>
>
> >
> > > Conclusions: The heat transfer to coolant is good. The flow of
water
> > is good.
> > > The air flow and the efficiency of the golf radiator are not good.
Joe
> > recommended a new radiator. He didn't like the round tubes and the
design
> > efficiency of the Golf.
> > > One fix may be ducted air to the radiator.
> >
> >
> > Don,
> > Great job, & thanks for taking the time to do this test for us!
> > Just as I suspected .... the VW rad is just not up to the task we are
asking
> > it to do.
> > As for the ducting to the rad, I've already tried this in a crude sort
of
> > way. I made side fins on my rad brackets, they are about 3" long and
are
> > angled at about 45 degrees. This works pretty good at scooping a
little
> > extra air for that poor rad (I can tell by the bugs splattered on them
after
> > each flight). I'd say it helped cool my water temps about 5 degrees
(but
> > still not enough).
> > Thanks again for your report!
> >
> > Kelly
> >
> >
>
> A three degree drop through a radiator is probably more a fuction of air
flow
> through it rather than a small size.
>
>
Message 12
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| Subject: | Re: Fuel Management Toys |
--> Zenith-List message posted by: Randall Stout <n282rs@sbcglobal.net>
I paid $99 for the F30, and I think the FU30 is about $150. I bought mine
from www.exomarine.com . There are also other places listed on the CruzPro
site that sell them.
Randy
----- Original Message -----
From: "Fred or Sandy Hulen" <hulens61@birch.net>
Subject: Re: Zenith-List: Fuel Management Toys
> --> Zenith-List message posted by: "Fred or Sandy Hulen"
<hulens61@birch.net>
>
> Randolf,
>
> The fuel guages you referenced are very interesting, but they don't quote
> any prices on the web site. Have you inquired and could you advise us of
the
> costs of the two?
>
> Fred
>
> do not archive
>
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