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Old 10-27-2011, 07:06 PM
  #26  
Soaring Steve
 
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Default RE: glow to gas conversion adviceST3000

Ken,

Will the ST 3250 respond as well to a gas conversion as the smaller engine does?

Thanks.

Steven
Old 10-27-2011, 07:26 PM
  #27  
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: KenLambert

I have found that a larger bore carb doesn't run as well as the smallest bore walbro does. The larger wants to run rich all the time and you are restricted by the size of the intack barrel. It is mainly the ignition ,timing, and a little tweak I give them ( top secret)

I should be out in the shop boxing up engines to ship out in the morning but I thought I would look around and maybe answer some questions if I know the answer or think I know!
Interesting..... I have been running an 11mm venturi Walbro carb with an accelerator pump on my gasoline powered Super Tiger .91. Runs great!

AV8TOR
Old 10-27-2011, 07:56 PM
  #28  
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Default RE: glow to gas conversion adviceST3000

Steve the larger ones do just as good

Av8t the 11 works fine , my meaning was the smaller works good also but are easier to tune and do produce a better throttle response, that has been my experiance
Old 10-27-2011, 08:00 PM
  #29  
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: av8tor1977


ORIGINAL: KenLambert

I have found that a larger bore carb doesn't run as well as the smallest bore walbro does. The larger wants to run rich all the time and you are restricted by the size of the intack barrel. It is mainly the ignition ,timing, and a little tweak I give them ( top secret)

I should be out in the shop boxing up engines to ship out in the morning but I thought I would look around and maybe answer some questions if I know the answer or think I know!
Interesting..... I have been running an 11mm venturi Walbro carb with an accelerator pump on my gasoline powered Super Tiger .91. Runs great!

AV8TOR
No SuperTiger .91....is there??? Lots of .90,s! That 11 mm carb works better if your flying at higher speeds....right??? Capt,n
Old 11-14-2011, 08:18 AM
  #30  
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Default RE: glow to gas conversion adviceST3000

Any new updates on the big tiger conversions?
Old 11-14-2011, 03:05 PM
  #31  
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Default RE: glow to gas conversion adviceST3000

+1 on the honesty issue. Never happen though.
Old 11-14-2011, 03:48 PM
  #32  
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Default RE: glow to gas conversion adviceST3000


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+1 on the honesty issue. Never happen though.
Say what about honesty?
Old 11-26-2011, 05:22 PM
  #33  
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: Jezmo

+1 on the honesty issue. Never happen though.
Is this about the http://www.consumerreports.org/cro/c...view/index.htm mess?
Old 11-26-2011, 05:49 PM
  #34  
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Default RE: glow to gas conversion adviceST3000

There are some interesting false statements in this thread.
There are several reasons that theoretically you will get more power from alcohol than you will from gasoline. This is at the expense of higher fuel consumption. You simply can pack more alcohol in a cylinder than you can gasoline. In difference to Mr Lambert it must be done right.
Another interesting fact for the green people is it takes more petroleum based fertilizer to grow the corn that is required to make the alcohol than you save. You might as well just use gas and forget it.
Old 11-26-2011, 06:02 PM
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Default RE: glow to gas conversion adviceST3000

Its all about the timing. The ST power combos are (most power first)
Glow fuel with ignition, Gas with ignition, glow fuel with glow plug, gas/glowfuel with glow plug.
A timed spark happens the same time always, a glow plug depends on many variables as to when it fires.
Old 11-26-2011, 06:46 PM
  #36  
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: dirtybird

There are some interesting false statements in this thread.
There are several reasons that theoretically you will get more power from alcohol than you will from gasoline. This is at the expense of higher fuel consumption. You simply can pack more alcohol in a cylinder than you can gasoline. In difference to Mr Lambert it must be done right.
Another interesting fact for the green people is it takes more petroleum based fertilizer to grow the corn that is required to make the alcohol than you save. You might as well just use gas and forget it.
Making alcohol also uses a lot of fresh water, something that we take for-granted in the US and in very short supply in most of the rest of the world. Even if a new process is developed that uses biomass waste instead of corn, the use of fresh water is still a high price to pay.
Old 11-26-2011, 07:47 PM
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: tkg

Its all about the timing. The ST power combos are (most power first)
Glow fuel with ignition, Gas with ignition, glow fuel with glow plug, gas/glowfuel with glow plug.
A timed spark happens the same time always, a glow plug depends on many variables as to when it fires.
That last one, gas/glowfuel with glow plug...is that the E85 with glow plug?
Old 11-26-2011, 08:00 PM
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Default RE: glow to gas conversion adviceST3000

E85 gas will work with a good 4 cycle glow plug.
Old 11-27-2011, 04:33 PM
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: captinjohn

E85 gas will work with a good 4 cycle glow plug.
Can you expand on this please? I'm curious. E85 on a gas engine converted to glow, or on a straight glow engine? What oil would you mix with it?
Thanks.
Old 11-27-2011, 06:46 PM
  #40  
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Default RE: glow to gas conversion adviceST3000


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ORIGINAL: captinjohn

E85 gas will work with a good 4 cycle glow plug.
Can you expand on this please? I'm curious. E85 on a gas engine converted to glow, or on a straight glow engine? What oil would you mix with it?
Thanks.
I would use Klotz oil (or any oil that blends good with alcohol) and use the ratio your engine manual states. Like 30 to 1 for a DLE 30cc engine. If it is a no needle bearing engine like a Supertiger...try 12-14 percent. The glow plug should be a OS Max "F" series. On Moki engines you may want to add a small amout of Bean oil. Capt,n
Old 11-27-2011, 08:08 PM
  #41  
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: dirtybird

There are some interesting false statements in this thread.
There are several reasons that theoretically you will get more power from alcohol than you will from gasoline. This is at the expense of higher fuel consumption. You simply can pack more alcohol in a cylinder than you can gasoline. In difference to Mr Lambert it must be done right.
Another interesting fact for the green people is it takes more petroleum based fertilizer to grow the corn that is required to make the alcohol than you save. You might as well just use gas and forget it.
Don't know what the indifference is but I wasn't talking alcohol . I was talking about gas conversion performanc,I think there is 2 discusions going on?
Old 11-27-2011, 08:31 PM
  #42  
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Default RE: glow to gas conversion adviceST3000

Ken, I think you are right....2...maybe even 3 conversations going on!!!! I hope you had a nice Thanksgiving day. I ate too much.....it was good food. Love the Pecan Pie! Capt,n
Old 11-28-2011, 03:50 PM
  #43  
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: captinjohn


ORIGINAL: hsukaria


ORIGINAL: captinjohn

E85 gas will work with a good 4 cycle glow plug.
Can you expand on this please? I'm curious. E85 on a gas engine converted to glow, or on a straight glow engine? What oil would you mix with it?
Thanks.
I would use Klotz oil (or any oil that blends good with alcohol) and use the ratio your engine manual states. Like 30 to 1 for a DLE 30cc engine. If it is a no needle bearing engine like a Supertiger...try 12-14 percent. The glow plug should be a OS Max ''F'' series. On Moki engines you may want to add a small amout of Bean oil. Capt,n
Ok, sounds like a good thing to try next flying season. Thanks.
Old 11-29-2011, 03:28 PM
  #44  
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Default RE: glow to gas conversion adviceST3000

ORIGINAL: KenLambert


ORIGINAL: Jezmo

+1 on the honesty issue. Never happen though.
Say what about honesty?
Sorry for getting back a bit late on this one. It was about the fact that we are not told the truth about alcohol in our fuels from page 1. I was making reference to Mr. Merritt's post. Our gov hides far more than we know (or distorts the truth) and that's enough before I get in trouble.
Old 11-29-2011, 04:02 PM
  #45  
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Default RE: glow to gas conversion adviceST3000


ORIGINAL: Jezmo

ORIGINAL: KenLambert


ORIGINAL: Jezmo

+1 on the honesty issue. Never happen though.
Oh come on!! The Gov't?? They've got nothing to hide, they're not crooks.
Say what about honesty?
Sorry for getting back a bit late on this one. It was about the fact that we are not told the truth about alcohol in our fuels from page 1. I was making reference to Mr. Merritt's post. Our gov hides far more than we know (or distorts the truth) and that's enough before I get in trouble.

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