Register Now

wise guy · 02-22-2006, 07:14 AM

I have a few 1/2A engines that I would like to run , what fuel brand are you using ? What is the percentage of nitro and caster amounts and can you get fuel in pint and quart cans? The engines are Cox .049 . Got plans for a U/Control plane and School master r/c and would like to put these finger wackier engines in them.

SteveM · 02-22-2006, 08:05 AM

There are differing opinions but the general recommendation is to use fuel with around 18 to 20% straight castor lube and 15 to 25% nitro. The original Cox fuel is close to this mix. I've use Byron's 25% nitro fuel which comes in quarts labeled "1/2A Fuel, 16% All Castor" and I add 1 oz. Sig castor to each quart. My engines all run well and seem to last a long time between rod resets.

AJCoholic · 02-22-2006, 09:45 PM

I am currenlty using Wildcat 1/2A mix, have had great success with Sig 35% 1/2A fuel also. For slower running engines like the reedies you can get by with a full synth or low castor mix, but you really cant beat a higher castor mix for the TD's.

ANything from 15% to 35% is good, I think the Wildcat I am using now is 25% nitro.

18% oil MINIMUM - 22 to 25% is better.

AJC

wise guy · 02-23-2006, 08:39 AM

Hi Andrew thanks for the info. on 1/2 A engines. Were you at kitchner for the September scale Rally about 3 or 4 years ago ? There we a guy who had a bunch of small engines displayed on a blanket, was that you? If so I enjoyed talking to you. There were allot of engines with experimental carburettors on them. By following your posts on this site knowing you are an engine man .

AJCoholic · 02-23-2006, 11:10 AM

Nope, that wasnt me. Havent been to the scale rally since 94'

I run enough 1/2A stuff to know what works for me. Its a little different for everyone, but if you buy a brand name fuel like Sig or Wildcat that is made for 1/2A engines you really cant go wrong.

AJC

ken park · 02-23-2006, 11:38 AM

Hi AJ

I just purchased a Toki .18 DF unit and of course all the instructions are in japanese. Have you any experience with this engine?

Iam sure to run high nitro 25-35 % they say you should get 30,000 rpms out of this sucker. They rate the engine at about 3lbs of thrust !

AJCoholic · 02-23-2006, 11:45 AM

No I havent but Easytiger on RCU has - and you can ask about it in the 1/2A forum there. Sorry!

Andrew

02-22-2006, 07:14 AM	#1
wise guy RCC Junior Contributor Join Date: Dec 2003 Location: lasalle ont Feedback: 0 / 0% Posts: 152 Total Props: 0	What fuel are you using for 1/2 A engine? Remove this ad - become a site supporter! I have a few 1/2A engines that I would like to run , what fuel brand are you using ? What is the percentage of nitro and caster amounts and can you get fuel in pint and quart cans? The engines are Cox .049 . Got plans for a U/Control plane and School master r/c and would like to put these finger wackier engines in them. __________________ Wise Guy Sun Parlor R/C club Windsor Ont
	.

02-22-2006, 09:45 PM	#3
AJCoholic RCC Supreme Contributor I am: Andrew Coholic Join Date: Sep 2002 Location: Timmins, Northern Ontario Radio of choice: JR 12X, 28X Feedback: 47 / 100% Posts: 12,277 Total Props: 61	I am currenlty using Wildcat 1/2A mix, have had great success with Sig 35% 1/2A fuel also. For slower running engines like the reedies you can get by with a full synth or low castor mix, but you really cant beat a higher castor mix for the TD's. ANything from 15% to 35% is good, I think the Wildcat I am using now is 25% nitro. 18% oil MINIMUM - 22 to 25% is better. AJC __________________ Andrew Coholic -MAAC #26287L 1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's... if its got a wing or two and an engine - I like it!
	.

02-23-2006, 08:39 AM	#4
wise guy RCC Junior Contributor Join Date: Dec 2003 Location: lasalle ont Feedback: 0 / 0% Posts: 152 Total Props: 0	Information helpfull Hi Andrew thanks for the info. on 1/2 A engines. Were you at kitchner for the September scale Rally about 3 or 4 years ago ? There we a guy who had a bunch of small engines displayed on a blanket, was that you? If so I enjoyed talking to you. There were allot of engines with experimental carburettors on them. By following your posts on this site knowing you are an engine man . __________________ Wise Guy Sun Parlor R/C club Windsor Ont
	.

02-23-2006, 11:10 AM	#5
AJCoholic RCC Supreme Contributor I am: Andrew Coholic Join Date: Sep 2002 Location: Timmins, Northern Ontario Radio of choice: JR 12X, 28X Feedback: 47 / 100% Posts: 12,277 Total Props: 61	Nope, that wasnt me. Havent been to the scale rally since 94' I run enough 1/2A stuff to know what works for me. Its a little different for everyone, but if you buy a brand name fuel like Sig or Wildcat that is made for 1/2A engines you really cant go wrong. AJC __________________ Andrew Coholic -MAAC #26287L 1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's... if its got a wing or two and an engine - I like it!
	.

02-23-2006, 11:38 AM	#6
ken park RCC Supreme Contributor I am: Ken Park Join Date: Jun 2003 Location: OTTAWA Feedback: 0 / 0% Posts: 2,320 Total Props: 7	Any experience with Toki .18 Hi AJ I just purchased a Toki .18 DF unit and of course all the instructions are in japanese. Have you any experience with this engine? Iam sure to run high nitro 25-35 % they say you should get 30,000 rpms out of this sucker. They rate the engine at about 3lbs of thrust !
	.

02-22-2006, 08:05 AM	#2
SteveM RCC Supreme Contributor I am: Steve M Join Date: Jan 2003 Location: Ottawa, ON Feedback: 116 / 99% Posts: 3,992 Total Props: 12	There are differing opinions but the general recommendation is to use fuel with around 18 to 20% straight castor lube and 15 to 25% nitro. The original Cox fuel is close to this mix. I've use Byron's 25% nitro fuel which comes in quarts labeled "1/2A Fuel, 16% All Castor" and I add 1 oz. Sig castor to each quart. My engines all run well and seem to last a long time between rod resets.
	.

02-23-2006, 11:45 AM	#7
AJCoholic RCC Supreme Contributor I am: Andrew Coholic Join Date: Sep 2002 Location: Timmins, Northern Ontario Radio of choice: JR 12X, 28X Feedback: 47 / 100% Posts: 12,277 Total Props: 61	No I havent but Easytiger on RCU has - and you can ask about it in the 1/2A forum there. Sorry! Andrew __________________ Andrew Coholic -MAAC #26287L 1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's... if its got a wing or two and an engine - I like it!
	.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

vBulletin Message

Cancel Changes

Register Now

Log-in