Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» GSCB meet this Sunday
by roddie Today at 3:48 pm

» Submarine ARA San Juan Lost in the sea ....
by Oldenginerod Today at 3:22 pm

» 1/2A Non-Contest Control Line Gathering
by xplaneguy Today at 3:14 pm

» Looking for a New In Box PT-19 from the 80s-90s
by kaylejwm Today at 2:04 pm

» Wen-Mac slotted glowhead
by roddie Today at 12:44 pm

» Recent engine acquisitions
by 1/2A Nut Today at 12:39 pm

» Happy Thanksgiving Friends
by Admin Today at 12:14 pm

» The Breezy Hill Flyers "Black Fly-Day" Event !!!
by fit90 Today at 8:53 am

» Drill Press Question
by getback Today at 8:10 am

» *** Double SIGH ***
by Kim Today at 5:15 am

Cox Engine of The Month
November-2017
MauricioB's

"Cox Tee Dee .010"



PAST WINNERS
Speed Contest 2018
CEF Traveling Engine

Gallery


Win This Engine!
The Traveling Prop
World of Aviation

Nitro percentage

View previous topic View next topic Go down

Nitro percentage

Post  mgmatus48 on Sat Feb 14, 2015 11:44 pm

I'm new to the forum and I'm just now getting back into 1/2A free flight. In the past I just used the Cox 1/2A fuel that was commercially available. I searched the forum and 35% seems to be the maximum amount of nitro that most people use. It seems more than that is hard on the engines and you don't really gain much more performance from higher nitro amounts. Any recommendations?
avatar
mgmatus48
New Member
New Member

Posts : 3
Join date : 2015-02-12
Location : Los Osos, Calif

View user profile

Back to top Go down

Re: Nitro percentage

Post  Mark Boesen on Sat Feb 14, 2015 11:53 pm

Yes, for sport flying 20-25% is fine, you could run less than 25% and many do, but if the nitro is available why not, these little engines are very happy with higher nitro then your common R/C engine. You will see a jump in power with 35% as well as a jump in price...its really your call.
avatar
Mark Boesen
Top Poster
Top Poster

Posts : 3359
Join date : 2011-09-01
Age : 59
Location : Rockford, Il

View user profile http://groups.yahoo.com/group/049Collectors/

Back to top Go down

Nitro percentage

Post  mgmatus48 on Sun Feb 15, 2015 12:15 am

Thanks that is generally what I've learned. I have some 50% nitro fuel and some castor oil. I can do the math to increase the nitro and oil percentages. I've noticed that 22% is also a good amount of oil percentage.
avatar
mgmatus48
New Member
New Member

Posts : 3
Join date : 2015-02-12
Location : Los Osos, Calif

View user profile

Back to top Go down

Re: Nitro percentage

Post  Oldenginerod on Sun Feb 15, 2015 1:37 am

Try this fuel % calculator. it makes varying the % content of existing fuel very easy.
http://www.nitrorc.com/default2.asp?Introduction=http://www.nitrorc.com/fuelws/

Rod.
avatar
Oldenginerod
Diamond Member
Diamond Member

Posts : 1895
Join date : 2012-06-15
Age : 55
Location : Victoria, Australia

View user profile

Back to top Go down

Re: Nitro percentage

Post  gossie on Sun Feb 15, 2015 2:46 am

My competition brew that I mix myself is 25% methanol, 25% castor, 50% nitro.
avatar
gossie
Gold Member
Gold Member

Posts : 133
Join date : 2011-10-18
Location : Gold Coast Australia.

View user profile

Back to top Go down

Nitro percentage

Post  mgmatus48 on Sun Feb 15, 2015 11:16 am

Thanks everyone. I'm going to give it a try.
avatar
mgmatus48
New Member
New Member

Posts : 3
Join date : 2015-02-12
Location : Los Osos, Calif

View user profile

Back to top Go down

Re: Nitro percentage

Post  Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum