propane injection

[davidkerryedwards]

Notice any difference in hill climbing ability? (not-so-pokey?) What
size orfice are you using? I suppose a person could experiment with
a one pound propane bottle, regulator and a little hose.
I know overfueling (or underairing) significantly increases EGT's on
my NA with an aftermarket turbo so I'm curious about the propane.
Anyone know anything about propane injection and altitude
differences?

Kerry
82 FC 35
Denver

--- In WanderlodgeForum@yahoogroups.com, Doug Engel
wrote:
>
> Pokey is NA and I do not run an EGT, so I can't answer that. I
tapped into the house propane tank, ran it unregulated into a
propane regulator and then into a soleniod valve, from there it runs
thru copper tubing and into the top of the air cleaner. I had to
fiddle with orifice size and pressure, but am running it at ablut 5
PSI. Since the regulator contriols flow, the initial problem I had
wa too small an orifice, I don't think you can go too big. I have a
switch on the dash and flip it on at highway speeds or when
accelerating, ususally not under 2000 RPM. The difference is subtle,
but very apparent. It runs smoother, takes fuel and accelerates
better.
> After talking to a chemist friend (who lost me but understood
what I had done), he said it has someting to do with a shorter
carbon chain in propane compared to diesel. The introduction of
propane into the fuel/air mixture allows the diesel to start to burn
at a lower temp/sooner and burn more completely. What I understand
is that it should not adversely affect the EGT or engine as a whole
in any way, at least not at the level I run it. In fact at idle, if
I turn it on, the engine actually seems to miss, so there is some
point at which the addition of propane will offset the air/fuel
mixture in a negative way, so there does not seem to be any chance
of a "runaway" situation.
> I still have to fiddle with the "right" amout. At highway
speeds, you can reach a point where I think you not gaining
anything, just using more and pumping it out the tailpipe.
> Doug n' Pokey

[Doug Engel]

Haven't climbed hills of any significance, but it does help pulling grades. I
notice that I can back out of the throttle some (fuel flow light goes out) and
maintain speed. I tried several orifice sizes but ultimately just drilled the
darn thing out to about a 1/8" and regulate it with the regulator. I think that
a person could run more than I currently have it set (higher RPM= ability to use
more propane), but then you would be using more than optimum if you are just
going down the road, I'm trying to find a happy medium. Like I said, it's not
earth shattering, but any noticeable difference in a 23,000# vehicle must be a
significant HP increase.
Doug n' Pokey

davidkerryedwards wrote:
Notice any difference in hill climbing ability? (not-so-pokey?) What
size orfice are you using? I suppose a person could experiment with
a one pound propane bottle, regulator and a little hose.
I know overfueling (or underairing) significantly increases EGT's on
my NA with an aftermarket turbo so I'm curious about the propane.
Anyone know anything about propane injection and altitude
differences?

Kerry
82 FC 35
Denver

--- In WanderlodgeForum@yahoogroups.com, Doug Engel
wrote:
>
> Pokey is NA and I do not run an EGT, so I can't answer that. I
tapped into the house propane tank, ran it unregulated into a
propane regulator and then into a soleniod valve, from there it runs
thru copper tubing and into the top of the air cleaner. I had to
fiddle with orifice size and pressure, but am running it at ablut 5
PSI. Since the regulator contriols flow, the initial problem I had
wa too small an orifice, I don't think you can go too big. I have a
switch on the dash and flip it on at highway speeds or when
accelerating, ususally not under 2000 RPM. The difference is subtle,
but very apparent. It runs smoother, takes fuel and accelerates
better.
> After talking to a chemist friend (who lost me but understood
what I had done), he said it has someting to do with a shorter
carbon chain in propane compared to diesel. The introduction of
propane into the fuel/air mixture allows the diesel to start to burn
at a lower temp/sooner and burn more completely. What I understand
is that it should not adversely affect the EGT or engine as a whole
in any way, at least not at the level I run it. In fact at idle, if
I turn it on, the engine actually seems to miss, so there is some
point at which the addition of propane will offset the air/fuel
mixture in a negative way, so there does not seem to be any chance
of a "runaway" situation.
> I still have to fiddle with the "right" amout. At highway
speeds, you can reach a point where I think you not gaining
anything, just using more and pumping it out the tailpipe.
> Doug n' Pokey






Doug Engel, Gunnison, CO. 1981 FC35SB "Pokey"

---------------------------------
Be a PS3 game guru.
Get your game face on with the latest PS3 news and previews at Yahoo! Games.

[Non-text portions of this message have been removed]

[worktohobby]

Hello,

On my old 1980 Bluebird the propaine helped with off the line
performance allot, some what in the mid-range, and little at near
governed spead; because the governor would compensate for the
additional (propane) fueling. This was a mild injection system,
the "Fuel Mizer".

What made a huge differance was a new free flowing muffler, stainless
steel. Actually quieter at the front of the bus, no louder at the rear.
This actually made the bus quite drivable in traffic and the bus ran
cooler as well. This was the type of exhaust that you could actually
see through from end to end, and about half the size of the OEM
muffler. Do this mod before you play with the propain.

Regards,

Don Duncan
1987 PT40, 8V92
Beaverton, Oregon

[Keith Strehle]

I know they're used by many but Bankspower has a differing opinion on
propane injection systems. Worth considering?

http://www.bankspower.com/tech_propane.cfm

Keith
84FC35
San Diego


--- In WanderlodgeForum@yahoogroups.com, "worktohobby"
wrote:
>
> Hello,
>
> On my old 1980 Bluebird the propaine helped with off the line
> performance allot, some what in the mid-range, and little at near
> governed spead; because the governor would compensate for the
> additional (propane) fueling. This was a mild injection system,
> the "Fuel Mizer".
>
> What made a huge differance was a new free flowing muffler,
stainless
> steel. Actually quieter at the front of the bus, no louder at the
rear.
> This actually made the bus quite drivable in traffic and the bus
ran
> cooler as well. This was the type of exhaust that you could
actually
> see through from end to end, and about half the size of the OEM
> muffler. Do this mod before you play with the propain.
>
> Regards,
>
> Don Duncan
> 1987 PT40, 8V92
> Beaverton, Oregon
>

[Mike Hohnstein]

I installed a Powershot 2000 in my toter, it over fuels real good. Anyhow, I
didn't notice any difference in the western grades, only way I know it was on,
the propane tank emptied out real fast.
I'm not saying the product or strategy is bad, didn't show me any thing that's
all.
MH
----- Original Message -----
From: Keith Strehle
To: WanderlodgeForum@yahoogroups.com
Sent: Thursday, March 22, 2007 4:28 PM
Subject: [WanderlodgeForum] Re: propane injection


I know they're used by many but Bankspower has a differing opinion on
propane injection systems. Worth considering?

http://www.bankspower.com/tech_propane.cfm

Keith
84FC35
San Diego

--- In WanderlodgeForum@yahoogroups.com, "worktohobby"
wrote:
>
> Hello,
>
> On my old 1980 Bluebird the propaine helped with off the line
> performance allot, some what in the mid-range, and little at near
> governed spead; because the governor would compensate for the
> additional (propane) fueling. This was a mild injection system,
> the "Fuel Mizer".
>
> What made a huge differance was a new free flowing muffler,
stainless
> steel. Actually quieter at the front of the bus, no louder at the
rear.
> This actually made the bus quite drivable in traffic and the bus
ran
> cooler as well. This was the type of exhaust that you could
actually
> see through from end to end, and about half the size of the OEM
> muffler. Do this mod before you play with the propain.
>
> Regards,
>
> Don Duncan
> 1987 PT40, 8V92
> Beaverton, Oregon
>





[Non-text portions of this message have been removed]

[Gardner Yeaw]

One thing I have learned from reading up on it is that propane
injection is of little use on a non-turbo engine. If anyone has a
differing opinion I would like to hear it, but for now, I think my
NA 3208 is not a good candidate for propane injection.

Gardner
78FC33

--- In WanderlodgeForum@yahoogroups.com, "worktohobby"
wrote:
>
> Hello,
>
> On my old 1980 Bluebird the propaine helped with off the line
> performance allot, some what in the mid-range, and little at near
> governed spead; because the governor would compensate for the
> additional (propane) fueling. This was a mild injection system,
> the "Fuel Mizer".
>
> What made a huge differance was a new free flowing muffler,
stainless
> steel. Actually quieter at the front of the bus, no louder at the
rear.
> This actually made the bus quite drivable in traffic and the bus
ran
> cooler as well. This was the type of exhaust that you could
actually
> see through from end to end, and about half the size of the OEM
> muffler. Do this mod before you play with the propain.
>
> Regards,
>
> Don Duncan
> 1987 PT40, 8V92
> Beaverton, Oregon
>

[Mike Hohnstein]

That's right, need a robust turbo. At the time I tried propane the toter had a
Switzer turbo, like the 300 hp arrangement uses, only showed 12 #s boost. Since
then I got a trick unit that shows 16 #s, need to try the propane again this
summer in the rockies with more air pump. Mebbe it will show me sumthin.
MH
----- Original Message -----
From: Gardner Yeaw
To: WanderlodgeForum@yahoogroups.com
Sent: Thursday, March 22, 2007 6:53 PM
Subject: [WanderlodgeForum] Re: propane injection


One thing I have learned from reading up on it is that propane
injection is of little use on a non-turbo engine. If anyone has a
differing opinion I would like to hear it, but for now, I think my
NA 3208 is not a good candidate for propane injection.

Gardner
78FC33

--- In WanderlodgeForum@yahoogroups.com, "worktohobby"
wrote:
>
> Hello,
>
> On my old 1980 Bluebird the propaine helped with off the line
> performance allot, some what in the mid-range, and little at near
> governed spead; because the governor would compensate for the
> additional (propane) fueling. This was a mild injection system,
> the "Fuel Mizer".
>
> What made a huge differance was a new free flowing muffler,
stainless
> steel. Actually quieter at the front of the bus, no louder at the
rear.
> This actually made the bus quite drivable in traffic and the bus
ran
> cooler as well. This was the type of exhaust that you could
actually
> see through from end to end, and about half the size of the OEM
> muffler. Do this mod before you play with the propain.
>
> Regards,
>
> Don Duncan
> 1987 PT40, 8V92
> Beaverton, Oregon
>





[Non-text portions of this message have been removed]