I'm running gasoline (the amount of methanol gives just a power boost, but it is not enought to keep a glow hot) only because my carb doesn't handle to much flow. I tried to take ofu power at WOT, but the rpm drops by 500rpm. It is not a hassle for me. One glow circuit switch and no problems. If I flip the switch in the flight I might get an interference.

Hey RysiuM, a question. I have several 2000nimi battery packs which are left over from my recently removed ignitions, these are in series of course. If I dismantle them and reassemble them in paralell doesnt the MAH multiply by the cells face value? Ie. a 4 cell 2000 becomes a 1.2v 8000mah?

Yes.

Maurice

Exactly. What the funny thing is, you will get probably the same flying time form these batteries (connected paralell) runing glow as you get from the original CDI (when connected in series). So on the glow iginition your plane has the same weight from batteries, but minus weight of the CDI module (in most systems it is 4-5 oz) and minus half weight of the spark plug (spark plug weights obout 1oz, glow with adapter weights around 1/2 oz).

Thanks guys, funny thing is we ran the 25cc Homey at the field to demo for the Sunday crowd (they were impressed!) and it seemed to run just about as well with the glow off as on. I have found with this particular engine a noticable improvement without the copper washer under the glow plug. I dont know if the plug runs hotter or what, but the idle is better without it. I may not need batteries after all!

Most of gas/glow conversion that run AV8Tor fuel (1 glow10/10 : 2 gas) don't need glow plug power except for starting. It is only my engine that gave the setup for constant glow power - but I run different mixture (1 glow 15/18 : 5 gas).

Hey RysiuM, what is the reason/advantage?

I see you did not read all 2000 posts There is only reason, and answer is in the [link=http://www.rcuniverse.com/forum/fb.asp?m=5905596]Post #: 1419[/link].

I'm running original Zama carb with Poulan 25cc weed eater engine. Zama can not provide enough fuel required for proper methanol based mixture. 10% methanol is the most I can run through that carb. I could replace the carb with equivalent Walbro that can handle bigger fuel flow, but why bother, if this setup runs fine and haning additional batteries on my CoroCub is not an issue. Quite convenient to have the "ignition" on the switch.

It warmed up enough for some more testing. Tried mixxing 1:2 15% glow with 40:1 gas. It got cloudy imediantly and sepirated with in a few minutes, but I tried it anyway and it ran GREAT, wondering if the virbration from the running engine is enough to keep it mixed?

You are one LUCKY dude!

Don't use gas-oil mix (the one you have 40:1). Use pure gasoline instead. The clouds you see are from the oil that was used for gasoline mix. It doesn't mix with methanol.

Rysium: Is what you are saying...is to take pure gas...then mix that with 10/10 glow fuel? Like with 1 part 10/10 glow fuel to 2 parts of pure gas? Pure gas with no oil is not to good unless it is in a auto 4 cycle engine. Now for the Guys that are having trouble with seperation...try Klotz oil and mix your own OR buy a glow fuel with Klotz lube in it. Capt,n

Yes, exactly. The engine will have the oil from glow fuel. It is enough for small garden engines. 10/10 glow fuel has 10% oil in it. When mixed with pure gasoline the final mix will have 3% oil, 3% nitro, 26% methanol and the rest is gasoline. It is well known AV8TOR Fuel

Hey yall, as I said in a earlier post the, ignitions are coming of most of may gassers. The 1st victim is this Ryobl 4 cycle. I just got the glow plug adapter made this afternoon and cobbled together this test exhaust. I made the plug adapter from steel this time hoping it will be a heat sink for better idle. Will try the stock carb, but it may not work well as it is a non-adjustable rotary barrel type. If it doesnt work I will go to a WT Walbro, but will have to tap the valve cover as a pulse source and mod the carb for external pulse fitting. Will let yall know if I have any success.

Yeah, we've all been waiting for someone to try Gas/Glow with a four stroker. Please let us know how it works!

Of course the worst that could happen is that it might need glow heat at idle, but maybe not! Good luck.

AV8TOR

I am betting it will work. Watch out for big kickback on starting. You may have to run Glow driver for lower RPM,s. You may need no nito fuel ....if it does kick back bad. Just a guess!!! Capt,n

I was getting 12,400 to 12,600 on the ST 90 that had already been converted to gas. I think it has a 13X6 prop, but I will have to pull it off and check. I am getting into the club 40 racing and my first plane a LA Racer 40 came in today, so I spent part of the day on it. Can't believe how complete this kit (ARF) is even has a pilot and a rool of tape to seal the canopy with. Nothing to buy except some glue, engine, and radio stuff.

Jim

Captin. If you run the 1 part 10/10 glow fuel and 2 parts strat gas it will put you about 30:1 oil mix. I think that right. The oil in the glow fuel is more then what you need to keep you engine happy.

Yes, and I hope everyone is clear on the mix. It is 1 part 10% nitro, 10% oil glow fuel to 2 parts of pure high test gasoline. (Not Premix; no oil)

This provides approximately a 32:1 oil ratio in the final mix, which is plenty. Making the Gas/Glow mix with gasoline with oil in it would be FAR too much oil.

Captain, did you do your Gas/Glow tests with a fuel made with premixed gasoline???

AV8TOR

WOW; you are right, I was using 15/18 glow. That alone mixed 1:2 gives me an oil ratio of 16.7:1
with the gas already at say 35:1 that was way to much oil.
If my figures are right thats 11.7:1 no wonder the plane looked like I was back to running glow!
It just didn't seam that there was that much oil in the fule, but I guess there was.

Your right again, I just had not done the math that works out to be 33.3:1 and I know several people that are running 100:1 in ther conventional 2 cycle engines. I remember reading in a motor cycle mag. several years ago wher they ran several dirt bikes on a dyno with diffrent oil mix's they found that there was not that much diffrence between power or longivity no matter what the oil mix was.

Hey guys, Well we have a running 4 cycle! Here are a few pics. As I suspected the carb is all wrong for gas/glow, will not supply enough fuel. Runs well on the bottom end and even IDLES! The idle is consistant but rocky, plug up the glow driver and it idles like a Lexus. I will idle through a tank of fuel if you wanted but it is smoother with the plug lit. I cant tell much about the top end. I did get it to rev pretty high by putting mu finger ovet the carb intake but I couldnt hold the tach too. Notice in the pics it is ticking over @ just under 1600 rpm with out the glow driver. I have several different WTs to try and I think it shows real promise!

Third try on the pics!

Ha! That's too cool. A four stroke gasser running on Gas/Glow. Now we know it works!

Congrats, and good work!

AV8TOR

Has anyone tried the Cool Power Sidewinder Pro 20% N 10% O Quart http://www3.towerhobbies.com/cgi-bin...?&I=LXBBS3&P=7 ?
I realize that the added nitro reduces the methanol content of the fuel.
It lists the the oil as 100% castor and would like to know how it mixes with gasoline.
What should be expected from having a higher nitro content 6.7% vs 3.3% in the gas/glow (AV8TOR Fuel )