Today's Message Index:
----------------------
1. 10:33 AM - batteries and electrical (malpass)
2. 10:58 AM - Re: batteries and electrical (dave)
3. 11:21 AM - Re: Re: batteries and electrical (Vic Baker)
4. 11:46 AM - Re: batteries and electrical (Sacha)
5. 12:11 PM - Re: Re: batteries and electrical (Dave)
6. 12:17 PM - Re: Re: batteries and electrical (Bill Malpass)
7. 12:31 PM - Re: Re: batteries and electrical (henrysfork1)
8. 04:58 PM - Re: batteries and electrical (Kitfox_Sed)
Message 1
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| Subject: | batteries and electrical |
For years now I have been starting my rotax 582 with a typical lawn mower type
battery which is about 3 1/2" x 6" x 6" high, and I get about a year and half
to 2 years out of them. They are cheap ($35) but dont last long. Just recently
I sent my 582 off to be zero timed. Engine runs good and has kick-ass compression.
So good of compression that the battery now has a little problem initially
turning over the engine, but it does though, but delays somewhat every
start. These mower batteries are in the range of about 175 cold crank amps, (I
think). So I just bought a new wet cell battery which is advertised as a multipurpose
type recreational battery used for motorcycles, jet skis, lawn mowers,
ATV's etc. I looked up the charateristics and it has 275 cold crank amps.
Now my question is: is there some amp limit for the rotax starter, wiring ,
solenoid, with battery power that I should be concerned about? I have hesitated
in trying to crank it up yet as I got concerned after the fact. I want to
get my comfort level up a bit, as I dont want to mess up a starter.
Thanks for any help with my 582 on a kitfox III turning a Ivo prop, with fiberglass
fuel tanks, and yes, I run av-gas with no corn!
Bill Malpass
--------
kitfox III w/ 582 greyhead
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390062#390062
Message 2
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| Subject: | Re: batteries and electrical |
If you starter is in good shape it will only draw as much as is needed.
582 does not like extended periods of AVGAS due to lead content
use premium car gas if you worried about ethanol
--------
Realtime Kitfox movies to separate the internet chatter from the truth
http://www.youtube.com/user/kitfoxflyer
Hundreds of Kitfox Movies
Most viewed Kitfox on youtube
Most popular on youtube
Highest rated on youtube
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390063#390063
Message 3
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| Subject: | Re: batteries and electrical |
Where can we buy ethanol free premium fuel?
----- Original Message -----
From: "dave" <dave@cfisher.com>
Sent: Saturday, December 08, 2012 10:58 AM
Subject: Kitfox-List: Re: batteries and electrical
>
> If you starter is in good shape it will only draw as much as is needed.
>
> 582 does not like extended periods of AVGAS due to lead content
> use premium car gas if you worried about ethanol
>
> --------
> Realtime Kitfox movies to separate the internet chatter from the truth
> http://www.youtube.com/user/kitfoxflyer
> Hundreds of Kitfox Movies
> Most viewed Kitfox on youtube
> Most popular on youtube
> Highest rated on youtube
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=390063#390063
>
>
>
>
>
>
>
>
>
>
Message 4
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| Subject: | Re: batteries and electrical |
Hi Bill
Ohms law says
I (amps) = V (volts) / R (ohms),
where V is the voltage applied to the circuit and R is the total resistance of
the circuit, I.e. the resistance of the appliance (in this case the starter motor)
plus the internal resistance of the battery plus the resistance offered by
the wires through which the current flows.
A higher CCA battery is a battery with a smaller internal resistance (you can see
this again from Ohms law) so in theory the R above would be slightly lower
and slightly more current would flow through the appliance. But keep in mind
that the battery resistance is typically measured in thousandths of Ohms whereas
the resistance of the appliance (plus that of the wires) is typically thousands
of times larger (think of, say, a 140W appliance drawing 10A at 14V....the
resistance it presents is therefore 1.4 Ohms again in virtue of Ohms law) so
the increase in the current in the circuit is going to be negligible.
All this to say that the only way you can get (significantly) more current flowing
through your starter is by increasing the voltage of the battery, not its
capacity, so crank away!
Sacha
On 08/dic/2012, at 19:32, "malpass" <malpass-architect@att.net> wrote:
>
> For years now I have been starting my rotax 582 with a typical lawn mower type
battery which is about 3 1/2" x 6" x 6" high, and I get about a year and half
to 2 years out of them. They are cheap ($35) but dont last long. Just recently
I sent my 582 off to be zero timed. Engine runs good and has kick-ass compression.
So good of compression that the battery now has a little problem initially
turning over the engine, but it does though, but delays somewhat every
start. These mower batteries are in the range of about 175 cold crank amps,
(I think). So I just bought a new wet cell battery which is advertised as a multipurpose
type recreational battery used for motorcycles, jet skis, lawn mowers,
ATV's etc. I looked up the charateristics and it has 275 cold crank amps.
Now my question is: is there some amp limit for the rotax starter, wiring
, solenoid, with battery power that I should be concerned about? I have hesitated
in trying to crank it up yet as I got concerned !
> after the fact. I want to get my comfort level up a bit, as I dont want to mess
up a starter.
>
> Thanks for any help with my 582 on a kitfox III turning a Ivo prop, with fiberglass
fuel tanks, and yes, I run av-gas with no corn!
>
> Bill Malpass
>
> --------
> kitfox III w/ 582 greyhead
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=390062#390062
>
>
>
>
>
>
>
>
>
>
Message 5
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| Subject: | Re: batteries and electrical |
anywhere in Ontario Canada where i live.
If you follow my you tube channel you can see the testing i did on rotax
engines and ethanol gas.
I have used both and no problems with fuel tanks falling apart.
I wil say if you use 10% ethanol that you will get about 10% less milage.
I use only premium for everything- no confusion that way.
cosdt is about 10% higher but I go further
cost effective? nope but you do use less fuel
as far as octane required we onlyf need regualr gas in our Rotax 582,912UL
912s needs higher octane due to higher compression.
----- Original Message -----
From: "Vic Baker" <vr_baker@nvbell.net>
Sent: Saturday, December 08, 2012 2:20 PM
Subject: Re: Kitfox-List: Re: batteries and electrical
>
> Where can we buy ethanol free premium fuel?
>
>
> ----- Original Message -----
> From: "dave" <dave@cfisher.com>
> To: <kitfox-list@matronics.com>
> Sent: Saturday, December 08, 2012 10:58 AM
> Subject: Kitfox-List: Re: batteries and electrical
>
>
>>
>> If you starter is in good shape it will only draw as much as is needed.
>>
>> 582 does not like extended periods of AVGAS due to lead content
>> use premium car gas if you worried about ethanol
>>
>> --------
>> Realtime Kitfox movies to separate the internet chatter from the truth
>> http://www.youtube.com/user/kitfoxflyer
>> Hundreds of Kitfox Movies Most viewed Kitfox on youtube
>> Most popular on youtube
>> Highest rated on youtube
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=390063#390063
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 6
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| Subject: | Re: batteries and electrical |
Dave, are you finding premium gas with no ethanol?
Be great to know, as I would sure you the mo-gas then.
Thanks for the help.
----- Original Message -----
From: "Dave" <dave@cfisher.com>
Sent: Saturday, December 08, 2012 3:10 PM
Subject: Re: Kitfox-List: Re: batteries and electrical
>
> anywhere in Ontario Canada where i live.
>
> If you follow my you tube channel you can see the testing i did on rotax
> engines and ethanol gas.
>
> I have used both and no problems with fuel tanks falling apart.
>
> I wil say if you use 10% ethanol that you will get about 10% less milage.
> I use only premium for everything- no confusion that way.
> cosdt is about 10% higher but I go further
> cost effective? nope but you do use less fuel
>
> as far as octane required we onlyf need regualr gas in our Rotax 582,912UL
> 912s needs higher octane due to higher compression.
>
>
> ----- Original Message -----
> From: "Vic Baker" <vr_baker@nvbell.net>
> To: <kitfox-list@matronics.com>
> Sent: Saturday, December 08, 2012 2:20 PM
> Subject: Re: Kitfox-List: Re: batteries and electrical
>
>
>>
>> Where can we buy ethanol free premium fuel?
>>
>>
>> ----- Original Message -----
>> From: "dave" <dave@cfisher.com>
>> To: <kitfox-list@matronics.com>
>> Sent: Saturday, December 08, 2012 10:58 AM
>> Subject: Kitfox-List: Re: batteries and electrical
>>
>>
>>>
>>> If you starter is in good shape it will only draw as much as is needed.
>>>
>>> 582 does not like extended periods of AVGAS due to lead content
>>> use premium car gas if you worried about ethanol
>>>
>>> --------
>>> Realtime Kitfox movies to separate the internet chatter from the truth
>>> http://www.youtube.com/user/kitfoxflyer
>>> Hundreds of Kitfox Movies Most viewed Kitfox on youtube
>>> Most popular on youtube
>>> Highest rated on youtube
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=390063#390063
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>
>
>
Message 7
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| Subject: | Re: batteries and electrical |
Our local Exon carries premium that is ethinol free
Dee Y
KFII N345DY
KFM 62hp
Sent from Samsung tabletBill Malpass <malpass-architect@att.net> wrote:
t>
Dave=2C are you finding premium gas with no ethanol?
Be great to know=2C as I would sure you the mo-gas then.
Thanks for the help.
----- Original Message -----
From: "Dave" <dave@cfisher.com>
Sent: Saturday=2C December 08=2C 2012 3:10 PM
Subject: Re: Kitfox-List: Re: batteries and electrical
>
> anywhere in Ontario Canada where i live.
>
> If you follow my you tube channel you can see the testing i did on rotax
> engines and ethanol gas.
>
> I have used both and no problems with fuel tanks falling apart.
>
> I wil say if you use 10% ethanol that you will get about 10% less milage.
> I use only premium for everything- no confusion that way.
> cosdt is about 10% higher but I go further
> cost effective? nope but you do use less fuel
>
> as far as octane required we onlyf need regualr gas in our Rotax 582=2C91
2UL
> 912s needs higher octane due to higher compression.
>
>
> ----- Original Message -----
> From: "Vic Baker" <vr_baker@nvbell.net>
> To: <kitfox-list@matronics.com>
> Sent: Saturday=2C December 08=2C 2012 2:20 PM
> Subject: Re: Kitfox-List: Re: batteries and electrical
>
>
>>
>> Where can we buy ethanol free premium fuel?
>>
>>
>> ----- Original Message -----
>> From: "dave" <dave@cfisher.com>
>> To: <kitfox-list@matronics.com>
>> Sent: Saturday=2C December 08=2C 2012 10:58 AM
>> Subject: Kitfox-List: Re: batteries and electrical
>>
>>
>>>
>>> If you starter is in good shape it will only draw as much as is needed.
>>>
>>> 582 does not like extended periods of AVGAS due to lead content
>>> use premium car gas if you worried about ethanol
>>>
>>> --------
>>> Realtime Kitfox movies to separate the internet chatter from the trut
h
>>> http://www.youtube.com/user/kitfoxflyer
>>> Hundreds of Kitfox Movies Most viewed Kitfox on youtube
>>> Most popular on youtube
>>> Highest rated on youtube
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=390063#390063
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>
>
Message 8
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| Subject: | Re: batteries and electrical |
The site: http://www.pure-gas.org shows a station not too far from Carson City that sells Ethanol free gas:
Chevron Station 204464 - CHEVRON
1357 U.S. 395, Gardnerville NV
Ethanol-free octane ratings: 87 89 91
GPS coordinates: N 38.93735 W 119.74103
-- Paul S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390082#390082
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