Today's Message Index:
----------------------
1. 07:34 AM - Re: Pro-seal (David Miller)
2. 08:08 AM - Re: Pro-seal (Wernerworld)
3. 08:33 AM - Re: Pro-seal (Fred Weaver)
4. 09:48 AM - Re: Pro-seal (Bob J.)
5. 09:56 AM - Re: Pro-seal (Jim Stone)
6. 02:33 PM - Re: Pro-seal (FRED LA FORGE)
7. 06:48 PM - Re: Pro-seal (Bob J.)
Message 1
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Time: 12:39:41 PM PST US
Subject: Re: Pro-seal
From: bluebird266@dslextreme.com
why do you want to use auto fuel in an IO540?
--------------------------------------------------------------------------
100LL around here is about $1.50 higher than Amoco 93 that about $20 an
hour, give or take, difference in fuel expense. That adds up quickly over
time, that's $40000 on a 2000hr engine life. I don't plan on using high
compression pistons and I've heard the Airflow fuel systems work fine with
auto-fuel. I have used, and have friends that use, auto fuel regularly
with little if any issues. The only issue I've ever had was having to
replace 0-rings in my fuel primer on a 172, although I don't know if it
was the auto fuel or old o-rings. Also, if you have a private strip, auto
fuel is much easier to come by.
I'd appreciate any feedback/experiences on the use of auto fuel.
Message 2
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Only downside to cargas that I can see is you can't get enough HP. I
want every horse and then some. If it means low compression and low HP
while still hauling around this heavy engine, I'll pass!
Russ
----- Original Message -----
From: David Miller
Sent: Thursday, December 20, 2007 8:27 AM
Subject: Re: Rocket-List: Pro-seal
Time: 12:39:41 PM PST US
Subject: Re: Pro-seal
From: bluebird266@dslextreme.com
why do you want to use auto fuel in an IO540?
-------------------------------------------------------------------------
-
100LL around here is about $1.50 higher than Amoco 93 that about $20 an
hour, give or take, difference in fuel expense. That adds up quickly
over time, that's $40000 on a 2000hr engine life. I don't plan on using
high compression pistons and I've heard the Airflow fuel systems work
fine with auto-fuel. I have used, and have friends that use, auto fuel
regularly with little if any issues. The only issue I've ever had was
having to replace 0-rings in my fuel primer on a 172, although I don't
know if it was the auto fuel or old o-rings. Also, if you have a
private strip, auto fuel is much easier to come by.
I'd appreciate any feedback/experiences on the use of auto fuel.
Message 3
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Our Rotax's run just great on 91 octane. They have 10.5 to 1 compression
and no detenation at all. Timing is set very close to the Lycoming's @
25 degrees BTDC. I see no reason not to run it in the 540. I run it in
my 0-360 all the time. Compression there is 8.2. The only issue with
car gas is letting it sit in the tanks. Undesireable... and can be
cured fairly quick by simply filling it up with some 100LL if it's going
to be sitting still for an extended period. If I'm zipping out to
Wyoming or up to Idaho, you can bet I fill it up with car
gas........although the difference here in California is much less in
cost. Our 100LL is $4.19 and the car gas is $3.45. Still amounts to
almost $10 an hour....and the plugs don't get gooed up with lead.
Weav
Wernerworld wrote:
> Only downside to cargas that I can see is you can't get enough HP. I
> want every horse and then some. If it means low compression and low
> HP while still hauling around this heavy engine, I'll pass!
>
> Russ
>
>
> ----- Original Message -----
> *From:* David Miller <mailto:David.Miller@cmworks.com>
> *To:* rocket-list@matronics.com <mailto:rocket-list@matronics.com>
> *Sent:* Thursday, December 20, 2007 8:27 AM
> *Subject:* Re: Rocket-List: Pro-seal
>
> *Time: * */12:39:41 PM PST US/*
>
> *Subject: * /*_Re: Pro-seal_*/
>
> *From: * */bluebird266@dslextreme.com
> <mailto:bluebird266@dslextreme.com>/*
>
>
>
>
> why do you want to use auto fuel in an IO540?
> --------------------------------------------------------------------------
> 100LL around here is about $1.50 higher than Amoco 93 that about $20
> an hour, give or take, difference in fuel expense. That adds up
> quickly over time, that's $40000 on a 2000hr engine life. I don't
> plan on using high compression pistons and I've heard the Airflow fuel
> systems work fine with auto-fuel. I have used, and have friends that
> use, auto fuel regularly with little if any issues. The only issue
> I've ever had was having to replace 0-rings in my fuel primer on a
> 172, although I don't know if it was the auto fuel or old o-rings.
> Also, if you have a private strip, auto fuel is much easier to come by.
>
> I'd appreciate any feedback/experiences on the use of auto fuel.
> *
>
> href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Rocket-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com
>
> *
> *
>
>
> *
> ------------------------------------------------------------------------
>
>
Message 4
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That's incorrect. Octane is the measure of resistance to detonation, hot
how much latent energy is present in the fuel. 87 octane has the same BTU
content as 100LL. Lowering compression is another story, but for a stock
8.5:1 Lyc there is no speed loss running mogas. I can't tell any difference
running mogas but my wallet sure can.
The last six months in my RV I have only put in 20 gals. of 100LL. Cut the
filter recently, it absolutely no junk in it, analysis came back good.
There's no reason to not run mogas in an injected 540, I have two friends
with rockets that do it all the time.
Regards,
Bob Japundza
RV-6 flying F1 under const.
On Dec 20, 2007 11:08 AM, Wernerworld <russ@wernerworld.com> wrote:
> Only downside to cargas that I can see is you can't get enough HP. I
> want every horse and then some. If it means low compression and low HP
> while still hauling around this heavy engine, I'll pass!
>
> Russ
>
>
> ----- Original Message ----- *From:* David Miller<David.Miller@cmworks.com>
> *To:* rocket-list@matronics.com
> *Sent:* Thursday, December 20, 2007 8:27 AM
> *Subject:* Re: Rocket-List: Pro-seal
>
> *Time: * *12:39:41 PM PST US* *Subject: * *Re: Pro-seal* *From: * *
> bluebird266@dslextreme.com*
>
>
> why do you want to use auto fuel in an IO540?
> --------------------------------------------------------------------------
> 100LL around here is about $1.50 higher than Amoco 93 that about $20 an
> hour, give or take, difference in fuel expense. That adds up quickly over
> time, that's $40000 on a 2000hr engine life. I don't plan on using high
> compression pistons and I've heard the Airflow fuel systems work fine with
> auto-fuel. I have used, and have friends that use, auto fuel regularly with
> little if any issues. The only issue I've ever had was having to replace
> 0-rings in my fuel primer on a 172, although I don't know if it was the auto
> fuel or old o-rings. Also, if you have a private strip, auto fuel is much
> easier to come by.
>
> I'd appreciate any feedback/experiences on the use of auto fuel.
>
> *
>
> href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Rocket-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com
> *
>
> *
>
> *
>
>
Message 5
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Amen Russ,
I'm still trying to figure out how to get afterburner working in mine
and I have 300 HP already.
Jim Stone
Louisville
In paint
----- Original Message -----
From: Wernerworld
To: rocket-list@matronics.com
Sent: Thursday, December 20, 2007 11:08 AM
Subject: Re: Rocket-List: Pro-seal
Only downside to cargas that I can see is you can't get enough HP. I
want every horse and then some. If it means low compression and low HP
while still hauling around this heavy engine, I'll pass!
Russ
----- Original Message -----
From: David Miller
To: rocket-list@matronics.com
Sent: Thursday, December 20, 2007 8:27 AM
Subject: Re: Rocket-List: Pro-seal
Time: 12:39:41 PM PST US
Subject: Re: Pro-seal
From: bluebird266@dslextreme.com
why do you want to use auto fuel in an IO540?
-------------------------------------------------------------------------
-
100LL around here is about $1.50 higher than Amoco 93 that about $20
an hour, give or take, difference in fuel expense. That adds up quickly
over time, that's $40000 on a 2000hr engine life. I don't plan on using
high compression pistons and I've heard the Airflow fuel systems work
fine with auto-fuel. I have used, and have friends that use, auto fuel
regularly with little if any issues. The only issue I've ever had was
having to replace 0-rings in my fuel primer on a 172, although I don't
know if it was the auto fuel or old o-rings. Also, if you have a
private strip, auto fuel is much easier to come by.
I'd appreciate any feedback/experiences on the use of auto fuel.
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Rocket-List">http://www.matron
href="http://forums.matronics.com">http://forums.matronics.com
Message 6
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Bob, Have you had any vapor pressure problems at altitude? As I
understand this is where the problem lies.
Fred LaForge EAA tech counselor,RV-4, HR-II project
----- Original Message -----
From: Bob J.
To: rocket-list@matronics.com
Sent: Thursday, December 20, 2007 9:48 AM
Subject: Re: Rocket-List: Pro-seal
That's incorrect. Octane is the measure of resistance to detonation,
hot how much latent energy is present in the fuel. 87 octane has the
same BTU content as 100LL. Lowering compression is another story, but
for a stock 8.5:1 Lyc there is no speed loss running mogas. I can't
tell any difference running mogas but my wallet sure can.
The last six months in my RV I have only put in 20 gals. of 100LL.
Cut the filter recently, it absolutely no junk in it, analysis came back
good. There's no reason to not run mogas in an injected 540, I have two
friends with rockets that do it all the time.
Regards,
Bob Japundza
RV-6 flying F1 under const.
On Dec 20, 2007 11:08 AM, Wernerworld <russ@wernerworld.com> wrote:
Only downside to cargas that I can see is you can't get enough HP.
I want every horse and then some. If it means low compression and low
HP while still hauling around this heavy engine, I'll pass!
Russ
----- Original Message -----
From: David Miller
To: rocket-list@matronics.com
Sent: Thursday, December 20, 2007 8:27 AM
Subject: Re: Rocket-List: Pro-seal
Time: 12:39:41 PM PST US
Subject: Re: Pro-seal
From: bluebird266@dslextreme.com
why do you want to use auto fuel in an IO540?
-------------------------------------------------------------------------
-
100LL around here is about $1.50 higher than Amoco 93 that about $20
an hour, give or take, difference in fuel expense. That adds up quickly
over time, that's $40000 on a 2000hr engine life. I don't plan on using
high compression pistons and I've heard the Airflow fuel systems work
fine with auto-fuel. I have used, and have friends that use, auto fuel
regularly with little if any issues. The only issue I've ever had was
having to replace 0-rings in my fuel primer on a 172, although I don't
know if it was the auto fuel or old o-rings. Also, if you have a
private strip, auto fuel is much easier to come by.
I'd appreciate any feedback/experiences on the use of auto fuel.
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="
http://www.matronics.com/Navigator?Rocket-List">http://www.matronhref="
http://forums.matronics.com">http://forums.matronics.com
Message 7
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No problems with altitude, I've run mogas up to 11500. Only once I had a
hint of vapor lock on takeoff on a 95 degree day when I left the boost pump
off; turning the pump cleared up the occasional miss. I have a hodges fuel
volatility tester and the autogas I use tests similarly as 100LL. 100LL
boils just as easily as the mogas in the tester.
Regards,
Bob
On Dec 20, 2007 5:26 PM, FRED LA FORGE <fred.laforge@verizon.net> wrote:
> Bob, Have you had any vapor pressure problems at altitude? As I
> understand this is where the problem lies.
> Fred LaForge EAA tech counselor,RV-4, HR-II project
>
> ----- Original Message -----
> *From:* Bob J. <rocketbob@gmail.com>
> *To:* rocket-list@matronics.com
> *Sent:* Thursday, December 20, 2007 9:48 AM
> *Subject:* Re: Rocket-List: Pro-seal
>
> That's incorrect. Octane is the measure of resistance to detonation, hot
> how much latent energy is present in the fuel. 87 octane has the same BTU
> content as 100LL. Lowering compression is another story, but for a stock
> 8.5:1 Lyc there is no speed loss running mogas. I can't tell any
> difference running mogas but my wallet sure can.
>
> The last six months in my RV I have only put in 20 gals. of 100LL. Cut
> the filter recently, it absolutely no junk in it, analysis came back good.
> There's no reason to not run mogas in an injected 540, I have two friends
> with rockets that do it all the time.
>
> Regards,
> Bob Japundza
> RV-6 flying F1 under const.
>
> On Dec 20, 2007 11:08 AM, Wernerworld <russ@wernerworld.com> wrote:
>
> > Only downside to cargas that I can see is you can't get enough HP. I
> > want every horse and then some. If it means low compression and low HP
> > while still hauling around this heavy engine, I'll pass!
> >
> > Russ
> >
> >
> > ----- Original Message ----- *From:* David Miller<David.Miller@cmworks.com>
> > *To:* rocket-list@matronics.com
> > *Sent:* Thursday, December 20, 2007 8:27 AM
> > *Subject:* Re: Rocket-List: Pro-seal
> >
> > *Time: * *12:39:41 PM PST US* *Subject: * *Re: Pro-seal* *From: * *
> > bluebird266@dslextreme.com*
> >
> >
> > why do you want to use auto fuel in an IO540?
> >
> > --------------------------------------------------------------------------
> > 100LL around here is about $1.50 higher than Amoco 93 that about $20 an
> > hour, give or take, difference in fuel expense. That adds up quickly over
> > time, that's $40000 on a 2000hr engine life. I don't plan on using high
> > compression pistons and I've heard the Airflow fuel systems work fine with
> > auto-fuel. I have used, and have friends that use, auto fuel regularly with
> > little if any issues. The only issue I've ever had was having to replace
> > 0-rings in my fuel primer on a 172, although I don't know if it was the auto
> > fuel or old o-rings. Also, if you have a private strip, auto fuel is much
> > easier to come by.
> >
> > I'd appreciate any feedback/experiences on the use of auto fuel.
> >
> > *
> >
> > href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Rocket-List">http://www.matronhref="
> > http://forums.matronics.com">http://forums.matronics.com
> > *
> >
> > *
> >
> > *
> >
> >
> *
>
> href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Rocket-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com
> *
>
> *
>
> *
>
>
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