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  #11  
Old 10-06-2008, 04:37 PM
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tcone1 tcone1 is offline
 
Join Date: Feb 2007
Location: Fresno, CA
Posts: 321
Default cool setup

How long does 3 gallons last?

thanks,

tc
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Timothy Cone
Sierra Skypark (KE79) Fresno CA
RV-8, XP360, RV200
Flown Sept. 12, 2007
1600 hours on the hobbs and loving it
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  #12  
Old 10-06-2008, 04:46 PM
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jthocker jthocker is offline
 
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Location: Cincinnati, Ohio
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Default

Tim

Probably 5 or 6 minutes.

I'll do a flow test and get an exact time soon.
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Jon Thocker
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RV4, RV4, RV6A, RV8, RV8, RV8,RV8, RV8, RV8, RV12
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  #13  
Old 10-08-2008, 08:27 PM
julietsix julietsix is offline
 
Join Date: Feb 2006
Location: Fort Worth, Texas
Posts: 13
Default Is pump pressure critical?

I would like to cobble up a smoke system, and the info you have provided is very helpful!

I have a Holley electric fuel pump PN 12-802 (for a race car) laying around the hanger unused, and I was thinking about using it for a smoke system. But, the Holley spec sheet says it is internally preset to 14 PSI, I notice yours is 60 PSI... Would 14 PSI work, do you think? Would I need to have different size orifices to inject the smoke oil into the exhaust? The flow rate is more than adequate (somewhere between 70 and 110 GPM at this pressure)....

Thanks,
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Fort Worth, Texas
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  #14  
Old 10-08-2008, 11:36 PM
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jthocker jthocker is offline
 
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Location: Cincinnati, Ohio
Posts: 1,060
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Jim
I think my 60 psi is way over kill, so I'd say try it and see.
Good luck
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  #15  
Old 10-09-2008, 02:07 PM
Allen Barrett Allen Barrett is offline
 
Join Date: Nov 2005
Location: tulsa, Oklahoma
Posts: 178
Default

Quote:
Originally Posted by billnaz View Post
Hey, will vegetable oil work in smoke systems?
In cold temperatures, the vegetable oil will get extremely thick. Besides you'll come back smelling like french fries

Allen
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  #16  
Old 10-10-2008, 07:47 AM
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jetjok jetjok is offline
 
Join Date: Feb 2007
Location: Sutter Creek, CA
Posts: 842
Default

Quote:
Originally Posted by julietsix View Post
I have a Holley electric fuel pump PN 12-802 (for a race car) laying around the hanger unused, and I was thinking about using it for a smoke system. But, the Holley spec sheet says it is internally preset to 14 PSI, I notice yours is 60 PSI... Would 14 PSI work, do you think? Would I need to have different size orifices to inject the smoke oil into the exhaust? The flow rate is more than adequate (somewhere between 70 and 110 GPM at this pressure)....

Thanks,
I have seen smoke systems on Pitts Specials that used a mechanical fuel pump for the smoke oil (the same fuel pump that is on our RV's). The pressure is close to what your electric pump is set for. It seemed to work just fine, and was reliable.
Good luck!
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RV-6 N506MM VAF #1410
2017 Donation Made
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  #17  
Old 10-17-2008, 12:57 PM
algrajek algrajek is offline
 
Join Date: Jun 2006
Location: Boca Raton, Florida
Posts: 436
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Hey Jon!
How ya doin?
DO NOT use jet A in your smoke system! It may work but if the nozzle ever breaks or the fuel is otherwise vaporized and his the exhaust, you will put ou a really neat trail of flames!
I dont think you want that. Ask me how I know.
Nordo
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  #18  
Old 10-17-2008, 03:32 PM
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frankh frankh is offline
 
Join Date: Jul 2006
Location: Corvallis Oregon
Posts: 3,547
Default Small technicality

Quote:
Originally Posted by Geico266 View Post
No need for that, I just asked a question. You might want to read the below link about using jet fuel for smoke. One spark and you are a bomb.

http://www.smokingairplanes.com/smok...m_smokeoil.htm

Also, using flammable liquids is not only dangerous to you, it is dangerous to those "who choose not to smoke". Inhaling unburned fuel vapors is dangerous. There are better, safer products to use that are certainly better for the environment than jet A.
but I believe Jet A is the same as #1 fuel oil...which has a closed cup flash point of 100F...in other words technically Jet A is combustible but not flammable.

The question is..is it combustible enough to catch fire in an exhaust pipe?...It looks like it may well be.

Frank
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  #19  
Old 10-17-2008, 03:38 PM
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tcone1 tcone1 is offline
 
Join Date: Feb 2007
Location: Fresno, CA
Posts: 321
Default smoke injection nozzle

Does anybody know what the smokingairplanes.com guys use for nozzles? I like the idea of not having to weld a bung on my vettermans...as a matter of fact, I just spoke with the vetterman folks and they recommend against it.

If anybody knows where I can get the clamp on type of injector nozzle, I'd appreciate some details.
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Timothy Cone
Sierra Skypark (KE79) Fresno CA
RV-8, XP360, RV200
Flown Sept. 12, 2007
1600 hours on the hobbs and loving it
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  #20  
Old 10-17-2008, 08:28 PM
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DeltaTango DeltaTango is offline
 
Join Date: Feb 2006
Location: Friendswood, TX
Posts: 68
Default smoke nozzle source

I got mine from Earle Parks at Parks Industries (806) 622-0602. They do work on T-34's. They are not cheap. If memory servers mine cost about $45each. I have had mine for about 3 years now.
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