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Balance won't be affected enough to worry about. Go ahead & get both the magnet ring & sensor mount. They are available seperately from the module.
After you lean out the carburetor, don't be afraid to crank the advance to her. Start @ 34° BTDC & then try about 2° more. If RPM doesn't increase, go back to 34°. If it does increase try 2° more, repeat until you reach peak RPM.
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You can pretty much achieve that W/CDI on the top end. They still need to smoke a little in the midrange though.
Funny thing with my FA200Ti though. Try as I might, I could not get significantly more power W/CDI over GI, maybe 100 RPM, too little to be of any consequence. I did however go from 7 minute WOT run time on 12 oz of 15% Cool Power, to 12 minutes. I'll take that any day.
I need to try some straight methanol/oil mix to see if there is an appreciable power drop. Getting rid of the nitro will further improve fuel economy.
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Mike having been there done that (but still to un pack) I emphasise, BUT it is a great time to take an inventory of ALL of your stuff, I have found all sorts of stuff including missing engines, kits and data not to mention tools etc, look at it as a good time to re acquaint yourself with your modelling. On the bright JG et al have gone and there is a strong OT fraternity at Belconnen Club, Grant Manwarring in particular. Get on to him through SAM 1788
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Sigh, here we go again.
Methanol will make 25% to 55% more power over gasoline & I don't want the smell, increased carbon build-up & higher operating temperatures that will eventually decrease engine life.
If you want an example of the HP difference, my FA180HC running on 15% Cool Power fired off @ 35° BTDC W/CH Ignitions CDI will make 3.4 HP. (8450 RPM W/an 18 X 8 prop).. That's about 36% more HP that the 2.5 HP produced by the Saito FG30. If I tip the nitro to 30%, the HP increases to 3.9. (8850 RPM W/an 18 X 8 prop) Now we are talking a 56% increase in HP over the gas version FG30.
Besides, if i mix my own, methanol is about 1/2 the price of gasoline.
Methanol will make 25% to 55% more power over gasoline & I don't want the smell, increased carbon build-up & higher operating temperatures that will eventually decrease engine life.
If you want an example of the HP difference, my FA180HC running on 15% Cool Power fired off @ 35° BTDC W/CH Ignitions CDI will make 3.4 HP. (8450 RPM W/an 18 X 8 prop).. That's about 36% more HP that the 2.5 HP produced by the Saito FG30. If I tip the nitro to 30%, the HP increases to 3.9. (8850 RPM W/an 18 X 8 prop) Now we are talking a 56% increase in HP over the gas version FG30.
Besides, if i mix my own, methanol is about 1/2 the price of gasoline.
Last edited by SrTelemaster150; 11-22-2013 at 04:59 AM.
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Sigh, here we go again.
Methanol will make 25% to 55% more power over gasoline & I don't want the smell, increased carbon build-up & higher operating temperatures that will eventually decrease engine life.
If you want an example of the HP difference, my FA180HC running on 15% Cool Power fired off @ 35° BTDC W/CH Ignitions CDI will make 3.4 HP. (8450 RPM W/an 18 X 8 prop).. That's about 36% more HP that the 2.5 HP produced by the Saito FG30. If I tip the nitro to 30%, the HP increases to 3.9. (8850 RPM W/an 18 X 8 prop) Now we are talking a 56% increase in HP over the gas version FG30.
Besides, if i mix my own, methanol is about 1/2 the price of gasoline.
Methanol will make 25% to 55% more power over gasoline & I don't want the smell, increased carbon build-up & higher operating temperatures that will eventually decrease engine life.
If you want an example of the HP difference, my FA180HC running on 15% Cool Power fired off @ 35° BTDC W/CH Ignitions CDI will make 3.4 HP. (8450 RPM W/an 18 X 8 prop).. That's about 36% more HP that the 2.5 HP produced by the Saito FG30. If I tip the nitro to 30%, the HP increases to 3.9. (8850 RPM W/an 18 X 8 prop) Now we are talking a 56% increase in HP over the gas version FG30.
Besides, if i mix my own, methanol is about 1/2 the price of gasoline.
You say alky will produce more power but then you give examples using high nitro content. I ran my FA-150 on reg gas & Klotz Super Technoplate @ 16:1 all one season with a CH ignition. It was down a couple hundred RPM at WOT compared to 10% Omega with the same timing. The engine was (still is) in a Ace 4-120 Bipe; seldom used or needed WOT. I've never been a fan of high nitro mixes to wring out every rev. What I want is reliability. Anyway, it worked for me..
CR
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Sr is rite concerning the meth issue, but note the designation used after the FA180 HC - high compression - been modified - so not really apples to apples. Personally, like Charley, a couple of hundred RPM usually doesn't mean a lot of difference to me. I've got a FA150 with 2 different manifolds - stock carb\Walbro carb (CHI conversion) and FA270T with RCxel & stock carb. Probably be Spring before I decide which way I really perfer to run.
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Why do drag racers run fuel (methanol) to make more power?
Last edited by SrTelemaster150; 11-22-2013 at 05:33 PM.
Thanks for mentioning the tygon fuel tubing.In all the excitement small details like that can ruin a good days flying.
fnq the mew gull is seagulls 72" arf version and i'll be flying it scale with some mild aeros.The fa220 is in it and has been run,but i hav'nt flown it yet as there's a lot of stuff left to do before that happens.There's a youtube vid of one flying with a fa180 in it i think,engine seems more than adequate.
ps plus i'm busy riding my new black ducati gt1000
fnq the mew gull is seagulls 72" arf version and i'll be flying it scale with some mild aeros.The fa220 is in it and has been run,but i hav'nt flown it yet as there's a lot of stuff left to do before that happens.There's a youtube vid of one flying with a fa180 in it i think,engine seems more than adequate.
ps plus i'm busy riding my new black ducati gt1000
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Well look,
You say alky will produce more power but then you give examples using high nitro content. I ran my FA-150 on reg gas & Klotz Super Technoplate @ 16:1 all one season with a CH ignition. It was down a couple hundred RPM at WOT compared to 10% Omega with the same timing. The engine was (still is) in a Ace 4-120 Bipe; seldom used or needed WOT. I've never been a fan of high nitro mixes to wring out every rev. What I want is reliability. Anyway, it worked for me..
CR
You say alky will produce more power but then you give examples using high nitro content. I ran my FA-150 on reg gas & Klotz Super Technoplate @ 16:1 all one season with a CH ignition. It was down a couple hundred RPM at WOT compared to 10% Omega with the same timing. The engine was (still is) in a Ace 4-120 Bipe; seldom used or needed WOT. I've never been a fan of high nitro mixes to wring out every rev. What I want is reliability. Anyway, it worked for me..
CR
Methanol MUST have about 8° more advance to take advantage of the higher relative octane & slower flame propagation.
This is a commom mistake.
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Sr is rite concerning the meth issue, but note the designation used after the FA180 HC - high compression - been modified - so not really apples to apples. Personally, like Charley, a couple of hundred RPM usually doesn't mean a lot of difference to me. I've got a FA150 with 2 different manifolds - stock carb\Walbro carb (CHI conversion) and FA270T with RCxel & stock carb. Probably be Spring before I decide which way I really perfer to run.
T-man49
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T-man49
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http://www.rcgroups.com/forums/showthread.php?t=1769449