RunRyder RC
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1627 views POST REPLY
HomeAircraftHelicopterHelicopter Main Discussion › Car fuel in our helis
04-07-2010 01:40 AM  8 years agoPost 1
westwindpilot

rrVeteran

Glendale, AZ

My Posts: All  Forum  Topic

Ok, I work at a hobby shop and we are out of fuel for about 2 weeks. Has anyone run car fuel in there helis?

We currently have

Odonnel 20 and 30 percent
Traxxas 20 and 33 percent
Sidewinder 20 and 30 percent. Sidewinder is made by the same company that makes coolpower 30.

Anyone ever used this? I have a feeling cars have different oils in there fuels but I thought it was worth asking.

Steve

PM  EMAIL  GALLERY  Attn:RR  Quote
04-07-2010 01:42 AM  8 years agoPost 2
george0079

rrElite Veteran

USA

My Posts: All  Forum  Topic

Just need to add some oil, to get the content up to around 20%

Hell... I can fix that.
Uh oh..
Nope.
It's ***ked!!!
RE-KIT!!!!!

PM  EMAIL  GALLERY  Attn:RR  Quote
04-07-2010 01:56 AM  8 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

The oil content is probably pretty darn low in those fuels. A little bit of searching on the web shows that the O'Donnell car fuels have somewhere between 8% and 12% oil content, depending upon which blend you happen to have on hand.

Helis should run at LEAST 18% oil content. To bring the oil content up to something useful, you're going to be diluting the nitro and methanol percentages. You may end up with a fuel that runs poorly and slobbers oil all over the place.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR  Quote
04-07-2010 02:00 AM  8 years agoPost 4
Dirthead

rrApprentice

Thornton Co.

My Posts: All  Forum  Topic

I wouldnt run car fuel, just to risky. Not enough oil, and who knows if you get the oil content right trying to add your own. Too much is as bad as not enough.

Keep ur head out the dirt only in the grass

PM  EMAIL  Attn:RR  Quote
04-07-2010 02:43 AM  8 years agoPost 5
westwindpilot

rrVeteran

Glendale, AZ

My Posts: All  Forum  Topic

Ok,, thanks guys. I will be playing the waiting game.

Steve

PM  EMAIL  GALLERY  Attn:RR  Quote
04-10-2010 09:27 PM  8 years agoPost 6
chopper_crazy

rrElite Veteran

Delphos, Ohio

My Posts: All  Forum  Topic

I think your better safe than sorry. My advice, get an electric machine

It's a complex, costly, glow powered anti-gravity machine!

PM  EMAIL  GALLERY  Attn:RR  Quote
04-10-2010 09:34 PM  8 years agoPost 7
RcRules

rrNovice

Akron ohio Usa

My Posts: All  Forum  Topic

I wouldn`t try it either my car engines run at high 30-mid 40 k rpm plus there coned cylinders not ringed ringed requires more oil my nova rossi 57 heli turns 20 k max and rakes the walls more becouse its run more like a tractor motor than a high rpm car engine .Rich

PM  EMAIL  Attn:RR  Quote
04-10-2010 11:23 PM  8 years agoPost 8
AirWolfRC

rrProfessor

42½ N, 83½ W

My Posts: All  Forum  Topic

And now for the dissenting view,

I have mixed and run my own with only 10% oil. That leaves more alcohol to burn giving more power. Didn't find any problems other than needing a slight retuning. Don't let the temps get out of hand and you should be ok. Thunder Tiger has run their own experiments with reduced oil.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-11-2010 01:45 AM  8 years agoPost 9
Yug

rrMaster

UK. Herts

My Posts: All  Forum  Topic

10% how long did the engine last ?

Vegetable rights and Peace

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2010 01:58 AM  8 years agoPost 10
AirWolfRC

rrProfessor

42½ N, 83½ W

My Posts: All  Forum  Topic

Still using it.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-11-2010 02:08 AM  8 years agoPost 11
Yug

rrMaster

UK. Herts

My Posts: All  Forum  Topic

Crikey, so what's your final analysis given the problems commonly associated with rear bearing ware ? What's your blend ?

Vegetable rights and Peace

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2010 04:03 AM  8 years agoPost 12
rexxigpilot

rrProfessor

Florida

My Posts: All  Forum  Topic

Anyone ever heard of a guy named Clarence Lee? Much data is available that shows about 12% oil/lubricant is all a 0.60CI 2 stroke engine needs. A similar size 4 stroke will need about 14%. The amount of oil/lubricant needed goes up and down with the engine displacement. Therefore, I'm not surprised AirWolfRC is getting by on 10% if he's running it in a 0.50. Personally I would up it to 12% by adding 2% castor (that's an additional 2.6 oz oil) just to be safe on lean runs.

Now, the real question is why do the fuel manufacturers put so much lubricant in their fuel? The synthetic lubricant is typically the most costly part of the fuel mix by far. It just doesn't make any sense - less power and more cost for no good reason.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2010 02:00 PM  8 years agoPost 13
Mutt

rrKey Veteran

M ca usa

My Posts: All  Forum  Topic

Now, the real question is why do the fuel manufacturers put so much lubricant in their fuel?
Because there are a lot of people who dont have a clue how to tune a glow engine properly and with less oil would fry them.

PM  EMAIL  Attn:RR  Quote
04-11-2010 05:04 PM  8 years agoPost 14
russ

rrApprentice

england

My Posts: All  Forum  Topic

what about unleaded or deisel can these be used

russ

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2010 05:20 PM  8 years agoPost 15
VooDooX

rrElite Veteran

San Francisco Bay Area CA, US (San Mateo)

My Posts: All  Forum  Topic

i know theres a conversion to run nitro engines on diesel but i dont have a link apparently there really messy (messier then nitro)

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2010 05:35 PM  8 years agoPost 16
TankDirt

rrKey Veteran

Illinois

My Posts: All  Forum  Topic

And very low powered if I remember correctly..Also cooling is a big issue, Somebody had to put 46 in the Raptor 30 just so it had enough power/ cooling to fly without exploding.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2010 05:49 PM  8 years agoPost 17
AirWolfRC

rrProfessor

42½ N, 83½ W

My Posts: All  Forum  Topic

If you want to use anything other than alcohol, except dielel, you will need to install a real spark ignition system. Alcohol fuel uses the platinum in the glow plugs in a catalytic reaction to do the ignition.

The lower oil is all that's needed for lubrication. The excess is to help cooling when someone can't tune properly. Gas engines that have needle bearings on the connecting rod upper and lower get by with only 2% oil.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-11-2010 06:41 PM  8 years agoPost 18
RcRules

rrNovice

Akron ohio Usa

My Posts: All  Forum  Topic

Diesil can be done but gasoline no our nitro engines run a fast burn not an explosion like gas a nitro engine canot handle the stresses of an explosion in the combustion chamber severe bodily injury and or death can be the end result .Rich

PM  EMAIL  Attn:RR  Quote
04-11-2010 08:59 PM  8 years agoPost 19
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Diesel conversion is easily accomplished, I think Davis Diesel Development is still around and selling conversion heads.

http://www.davisdieseldevelopment.com/

But the fuel used is NOT your basic #2 Diesel from the Shell Oil station down the road, it's a model-engine version and generally not readily available except via mail order....

-----

Gasoline, no. Not unless you want to find out just how quickly you can screw up a $300 motor and reduce it to junk.

-----

As to why fuel manufacturer's put lots of oil in their fuel --

Read the OS engines manual. 18% minimum oil content recommended if you care at all about the warranty.

And if you spend much time here on RR at all, you'll see that there have been many, many engines fried dead on a daily basis, and that's with a large amount of oil in the mix.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR  Quote
04-12-2010 01:28 AM  8 years agoPost 20
leejax01

rrVeteran

Jax. Fl.

My Posts: All  Forum  Topic

Try and get that rc break in fuel as it has more oil than the regular fuel. Smokes like a champ and actually looks like a heli engine/exhaust going down the street.

Or better yet, get some Morgan Backyard Basher. It has 18% oil content.

Perfect practice makes perfect

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1627 views POST REPLY
HomeAircraftHelicopterHelicopter Main Discussion › Car fuel in our helis
 Print TOPIC  Make Suggestion 

 6  Topic Subscribe

Tuesday, October 23 - 12:37 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online