Engine Conversions Discuss all aspects of engine conversions in this forum

GAS/GLOW HOW TO....

Reply
Old 02-22-2011, 09:54 AM
  #326
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,897
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

I may be having a senior moment, but I thought it was 1 part 20/20 glow and 2 parts premium gasoline? I need to go back to the beginning of the thread. Also, has anyone tried Coleman instead of gasoline? Is the octane of the premium gasoline necessary? I may have to try it.

Thanks,

Sincerely, Richard
spaceworm is offline  
Reply With Quote
Old 02-22-2011, 09:58 AM
  #327
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,897
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

I should have read first and spoken last. Yes, it is 10/10 glow as you said. My bad. (I am turning 7 decades plus one on Friday, so excuse the senior moment please)

But, how about the premium gas thing?

Thanks again, Sincerely, Richard
spaceworm is offline  
Reply With Quote
Old 02-22-2011, 10:28 AM
  #328
fujiman
 
Join Date: Aug 2008
Location: Keizer, OR
Posts: 555
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

i think one of the experts in this thread suggested using premium gas, just can't remember what post it was, early on i think, correct me if i'm wrong, please. the glow fuel was 10/10 % for big supertigres with the end result was i believe was 32:1 oil ratio. then with my gas to glow adapter with a gasket (or the one for engs. with a tapered seat) and an os "F" glow plug, you should be good to go. just strip the eng. of ALL the stuff not needed for glow operation, then rock and roll!!!!!!!!!!!
fujiman is offline  
Reply With Quote
Old 02-22-2011, 04:44 PM
  #329
av8tor1977
Thread Starter
 
av8tor1977's Avatar
 
Join Date: May 2003
Location: Tucson, AZ
Posts: 6,938
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

Yes, that is correct. 1/3 10/10 glow fuel, to 2/3 premium gasoline. Some engines will detonate with regular gasoline. NO COLEMAN FUEL. It would almost surely detonate and ruin itself. And finally, yes, the oil percentage ends up being around 32:1. You do NOT add any oil to the mix; the oil is in the glow fuel.

Good luck and have fun, it really does work well. I even have a 50cc twin running on it and it runs and works great.

AV8TOR
av8tor1977 is offline  
Reply With Quote
Old 02-22-2011, 05:36 PM
  #330
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,897
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

I wonder why it is that high nitro in high compression glow engines will result in detonation, but high octane in high compression gas engines eliminates detonation? What happens in high, or low compression gas engines running on different amounts of nitro and different percentages of methanol in the mix, running on glow ignition? Any thoughts on this? Thanks.

Regards, Richard
spaceworm is offline  
Reply With Quote
Old 02-22-2011, 06:18 PM
  #331
the Wasp
 
Join Date: Sep 2003
Location: R, VT
Posts: 1,712
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

in short,,

Gasoline,,
the more Octane the slower the Fuel burns,,

Nitro,,
the more Compression an Engine has the sooner the Nitro will Ignite, so the higher the Nitro percentage the lower your Compression should be

Jim
the Wasp is offline  
Reply With Quote
Old 03-13-2011, 07:47 PM
  #332
stu62
 
Join Date: Nov 2008
Location: Brahma Lodge, AUSTRALIA
Posts: 70
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

hi all i have converted my dle to glow no petrol changed the carby to one with bigger jets for racing.A four stroke glow plug. 20% nitro 10% oil the rest methanol it runs smother turns a little more pitch better than standard will be racing it in April

Stu
stu62 is offline  
Reply With Quote
Old 03-13-2011, 09:33 PM
  #333
Flight Risk
 
Flight Risk's Avatar
 
Join Date: Jun 2003
Location: Rocky Flats, CO
Posts: 681
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....



Quote:
ORIGINAL: stu62

hi all i have converted my dle to glow no petrol changed the carby to one with bigger jets for racing four stroke plug 20% nitro 10% oil the rest methanol it runs smother turn a little more pitch better than standard will be racing it in April

Stu
I"m wondering why you can't go to 3-5% oil. I was thinking methanol burns cooler than petrol besides.

Rod S
Flight Risk is offline  
Reply With Quote
Old 03-13-2011, 09:43 PM
  #334
stu62
 
Join Date: Nov 2008
Location: Brahma Lodge, AUSTRALIA
Posts: 70
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

i hadn't thought about trying less oil as it seemed to run so smooth and the exhaust is low enough to keep the model clean

Stu
stu62 is offline  
Reply With Quote
Old 03-14-2011, 06:38 AM
  #335
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,897
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....




[/quote]

I''m wondering why you can't go to 3-5% oil. I was thinking methanol burns cooler than petrol besides.

Rod S
[/quote]

Gasoline has some inherent lubricity, methanol does not. Does anyone know what the contribution to "oiling" the gasoline has? I do not.

Part of the high oil in methanol fuels is for the connecting rod ends. Typical glow engines have no bushings or bronze bushings. Gasoline engines have needle or roller bearings on the rod ends and of course ball or roller bearings on the main crankshaft.

That said, you should be able to reduce the oil percent for a gas engine converted to glow, since the engine has proper bearings. Again how much I don't know.

Richard/Club SAITO #635
spaceworm is offline  
Reply With Quote
Old 03-14-2011, 11:51 AM
  #336
the Wasp
 
Join Date: Sep 2003
Location: R, VT
Posts: 1,712
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

I know Tartan recommends 1% more oil in their Glow Engines than their Gasoline Engines, but here both their Glow and Gasoline Engines have Bearings in the bottom of their Rods

Jim
the Wasp is offline  
Reply With Quote
Old 03-14-2011, 02:22 PM
  #337
Flight Risk
 
Flight Risk's Avatar
 
Join Date: Jun 2003
Location: Rocky Flats, CO
Posts: 681
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

47 cents a gallon?
http://en.wikipedia.org/wiki/Methano...#United_States

RS
Flight Risk is offline  
Reply With Quote
Old 03-14-2011, 07:12 PM
  #338
the Wasp
 
Join Date: Sep 2003
Location: R, VT
Posts: 1,712
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

""Ethanol is currently (as of 2007) priced at 3 to 4 dollars per gallon, while methanol made from natural gas remains at 47 cents per gallon""

(47 cents per gallon)


hummmm, I priced Methanol here in Vt about 3 years ago (2008) and it was $4.33 a gallon

Jim
the Wasp is offline  
Reply With Quote
Old 03-15-2011, 05:34 AM
  #339
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,897
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

I recently paid $5.00 a gallon in my jug at a speed shop.

Richard
spaceworm is offline  
Reply With Quote
Old 03-15-2011, 05:36 AM
  #340
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,897
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....


Quote:
ORIGINAL: spaceworm

I recently paid $5.00 a gallon in my jug at a speed shop.

Richard

That was for methanol, sorry.

Richard
spaceworm is offline  
Reply With Quote
Old 04-03-2011, 09:23 PM
  #341
the Wasp
 
Join Date: Sep 2003
Location: R, VT
Posts: 1,712
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

check this out,, click on the link below,, see "CONVERSIONS" click on the "Thunder Tiger Pro 1.20 Gasoline Conversion",,

now if this baby will run Gasoline with an Ignition, and run on Glow Fuel with a Glow Plug it should run on the Gas and Glow Mix with a Glow Plug,,

that's something to look into

http://tech.flygsw.org/

Jim
the Wasp is offline  
Reply With Quote
Old 04-03-2011, 10:12 PM
  #342
av8tor1977
Thread Starter
 
av8tor1977's Avatar
 
Join Date: May 2003
Location: Tucson, AZ
Posts: 6,938
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

He is running a 16:1 oil mix. The Gas/Glow mix comes out at about 32:1. Not enough oil. You would have to juggle the mix around to come up with a mix that has enough oil, but still has sufficient methanol in the brew to keep the glow plug lit.

AV8TOR
av8tor1977 is offline  
Reply With Quote
Old 04-03-2011, 10:21 PM
  #343
the Wasp
 
Join Date: Sep 2003
Location: R, VT
Posts: 1,712
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

the Wasp is offline  
Reply With Quote
Old 04-04-2011, 04:25 PM
  #344
Flight Risk
 
Flight Risk's Avatar
 
Join Date: Jun 2003
Location: Rocky Flats, CO
Posts: 681
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

I have been kind of thinking in the same direction. Considering that a methanol/gas mix at a 1:2 ratio will still ignite with a glow plug, could a similar mixture be used with added oil with the main objective to get a cheaper cost for glow fuel, for use in a standard glow engine. I would think the main concern would be to get a mixture which would reliably be tunable with a standard carb. I would think a 1:1 ratio of gas and methanol with 16-20% oil should run fine. If you use 20% nitro glow fuel you would end up with 10% or so nitro. There may be some loss of power, but wouldn't it run a bit cooler, so maybe less oil could be used, like 12-16%, so you would get a less slimy plane than normal glow fuel??[X(]

Rod S
Flight Risk is offline  
Reply With Quote
Old 04-04-2011, 04:49 PM
  #345
captinjohn
 
Join Date: Jan 2002
Location: Hesperia Michigan, MI
Posts: 12,873
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

Not a reply...but another way to run a engine & keep the cost down. Find a good SuperTiger 2300 or bigger. You can find them at swap meets dirt cheap. Use E 85 gas, a OS Max 4 cycle glow plug and use about 16% oil (Klotz) and your good to go. I have seen them run ....like perfect! Capt,n

Correction to E 85 not L 85
captinjohn is offline  
Reply With Quote
Old 04-04-2011, 05:20 PM
  #346
av8tor1977
Thread Starter
 
av8tor1977's Avatar
 
Join Date: May 2003
Location: Tucson, AZ
Posts: 6,938
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

Adding gasoline to glow fuel is nothing new. It is done in the "Texaco" events I believe. It can extend the run you get from a given tank size.

However, when doing your figuring of fuel mixes and thinking of converting glow engines, remember that gasoline burns hotter than the methanol in glow fuel, not cooler.

AV8TOR
av8tor1977 is offline  
Reply With Quote
Old 04-04-2011, 10:06 PM
  #347
Flight Risk
 
Flight Risk's Avatar
 
Join Date: Jun 2003
Location: Rocky Flats, CO
Posts: 681
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

Good advice captin and av8tor,
Is L85 the same as E85? I think I'll play around with some different mixtures.
Flight Risk is offline  
Reply With Quote
Old 04-05-2011, 12:31 PM
  #348
captinjohn
 
Join Date: Jan 2002
Location: Hesperia Michigan, MI
Posts: 12,873
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....


Quote:
ORIGINAL: Flight Risk

Good advice captin and av8tor,
Is L85 the same as E85? I think I'll play around with some different mixtures.
I ment to type E 85 ...Sorry....a typo ! Capt,n
captinjohn is offline  
Reply With Quote
Old 04-06-2011, 05:48 AM
  #349
KidEpoxy
 
KidEpoxy's Avatar
 
Join Date: Oct 2004
Location: San Antonio, TX
Posts: 6,681
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

re: cheaper glow engine fuel,
FYI
I had some success with a new stock ST gs40 glow engine running E85 + Castor(pharmacy) , 4:1 aka 20%
it ran kinda hot, and had surging problems with some tanks,
leading me to believe I wasnt getting a good blend of the castor in its cold weather semi-tar-like thickness.

I ordered a gallon jug of Kart castor to resume experiments now that its Shorts&Tee season again.
I'll improve my blending procedure and report if I get better results in a few weeks.



ps, the wee lil 15% gas in E85
WILL mess with any non-gas-rated parts of your fueling up equipment.
It killed the black plunger in my 2oz syringe
KidEpoxy is offline  
Reply With Quote
Old 04-06-2011, 06:46 AM
  #350
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,897
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: GAS/GLOW HOW TO....

Interesting. But, 1:4 is 25%. 20% would be 1:5. I have some Klotz syn plus castor. Did you have to leave the glow plug ignited or would it run with it depowered? Thanks.

Sincerely, Richard
spaceworm is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 11:07 PM.