R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric Off-Road

Reply
 
Thread Tools Search this Thread
Old 05-10-2007, 05:29 AM   #1
Tech Master
 
racer34v's Avatar
 
Join Date: Jan 2006
Posts: 1,736
Trader Rating: 126 (100%+)
Send a message via Yahoo to racer34v
Default Whats the difference in odonnel rtr and racing fuel?

Just getting ready to order a case and wondered what difference is,

My application will be

2 os vg .21's
1 os rg .21
1 axial .28

all in buggies

i'm currently running trinity 30% but looking into a bid of a change of pace

Thanks!!
Alan
racer34v is offline   Reply With Quote
Old 05-10-2007, 06:22 AM   #2
Tech Regular
 
Join Date: Oct 2003
Posts: 306
Trader Rating: 1 (100%+)
Default

The RTR has a different oil package than the race.
Go with the race fuel for what you are doing.
jdawg53 is offline   Reply With Quote
Old 05-10-2007, 10:26 AM   #3
Tech Master
 
Join Date: Feb 2007
Location: pasadena, CA
Posts: 1,487
Trader Rating: 11 (100%+)
Default

its pretty much the oil % that differs

what trinity fuel are you running right now??? for example...
platium
rtr
monster blend
__________________
go really fast and turn left....
Robert.Hull is offline   Reply With Quote
Old 05-10-2007, 10:55 AM   #4
Tech Regular
 
Join Date: Apr 2007
Location: Chambersburg, Pa
Posts: 377
Trader Rating: 7 (100%+)
Default

Ive run the rtr to break in engines thats about it
turtletrax is offline   Reply With Quote
Old 05-10-2007, 10:58 AM   #5
Tech Master
 
racer34v's Avatar
 
Join Date: Jan 2006
Posts: 1,736
Trader Rating: 126 (100%+)
Send a message via Yahoo to racer34v
Default

thanks for the feedback, thats a good question i will check when i get home from work, I ran the trinity stuff because its what the LHS carried / recommended... but with the lhs over an hour away i just cant get away to get more so i ordered some of the odonnell 30 race fuel this morning.... we'll see how it performs..!
racer34v is offline   Reply With Quote
Old 05-10-2007, 01:41 PM   #6
Tech Master
 
Join Date: Feb 2007
Location: pasadena, CA
Posts: 1,487
Trader Rating: 11 (100%+)
Default

odonnell will work fine for sure you just might have a tiny bit of tuning to do
__________________
go really fast and turn left....
Robert.Hull is offline   Reply With Quote
Old 05-11-2007, 05:58 AM   #7
Tech Master
 
racer34v's Avatar
 
Join Date: Jan 2006
Posts: 1,736
Trader Rating: 126 (100%+)
Send a message via Yahoo to racer34v
Default

i had the power 30% trinity fuel
racer34v is offline   Reply With Quote
Old 05-11-2007, 08:13 AM   #8
Tech Master
 
Join Date: Feb 2007
Location: pasadena, CA
Posts: 1,487
Trader Rating: 11 (100%+)
Default

yea thats ok cuase i was gonna say if your going from rtr fuel to race fuel you will have tuning to do for sure
__________________
go really fast and turn left....
Robert.Hull is offline   Reply With Quote
Old 05-11-2007, 09:13 AM   #9
Tech Champion
 
MADMAN23's Avatar
 
Join Date: Nov 2005
Location: waddington ny
Posts: 6,359
Trader Rating: 27 (97%+)
Send a message via AIM to MADMAN23
Default

i alway's run byron fuel... 20% it alway's good ..
MADMAN23 is offline   Reply With Quote
Old 05-11-2007, 09:21 AM   #10
Tech Master
 
racer34v's Avatar
 
Join Date: Jan 2006
Posts: 1,736
Trader Rating: 126 (100%+)
Send a message via Yahoo to racer34v
Default

20 in a big block?
racer34v is offline   Reply With Quote
Old 05-11-2007, 09:24 AM   #11
Tech Champion
 
MADMAN23's Avatar
 
Join Date: Nov 2005
Location: waddington ny
Posts: 6,359
Trader Rating: 27 (97%+)
Send a message via AIM to MADMAN23
Default

yes 20% in a big block... what do you use lol...
MADMAN23 is offline   Reply With Quote
Old 05-11-2007, 09:27 AM   #12
Tech Champion
 
MADMAN23's Avatar
 
Join Date: Nov 2005
Location: waddington ny
Posts: 6,359
Trader Rating: 27 (97%+)
Send a message via AIM to MADMAN23
Default

i just looked at your older post you useing 30% i never use 30% ... i know that byron fuel is $20 here for a gallon ... it has 16% oil and that plenty ... other brand's has somewhere between 12 %
MADMAN23 is offline   Reply With Quote
Old 05-11-2007, 11:03 AM   #13
Tech Master
 
racer34v's Avatar
 
Join Date: Jan 2006
Posts: 1,736
Trader Rating: 126 (100%+)
Send a message via Yahoo to racer34v
Default

i was told to run 20% nitro in a bb you have to remove a head shim... that they were designed for 30.....?
racer34v is offline   Reply With Quote
Old 05-11-2007, 11:10 AM   #14
Tech Initiate
 
Join Date: Apr 2007
Posts: 33
Trader Rating: 2 (100%+)
Send a message via MSN to Click(x)
Default

Most are designed for 25%, which is hard to find in america, you should add a thin shim (dont know exact size. think its .1 mm or .15mm) for 30%, or the suggest you do, but most dont.

A general rule of thumb is if you go up in nitro, you go down a plug temp. so if your run med, and 20%, and go to 30%, you go to cold med/cold plug. If your at a cold plug already, then you need to add a shim. At least thats what I was taught.

The shims prevent pre-ignition of the fuel. (The fuel ignites while piston is still heading to the top). It changes the timing at best, and at workst, causes con rod/piston damage.

Youll know if your engine is pre-igniting. It will ping, pop and backfire and just sound odd.

I like coopers or odonnels.

Also, I have heard rumors, but cant confirm or deny, that HIGHER oil content will cause your enging to runa little hotter. Higher alcohal content runs cooler. It has to do with the un-ignited state cooling the engine while it circulates.
Click(x) is offline   Reply With Quote
Old 05-11-2007, 01:34 PM   #15
Tech Master
 
Join Date: Feb 2007
Location: pasadena, CA
Posts: 1,487
Trader Rating: 11 (100%+)
Default

25% is not hard at ALL to find in america

i always use 30%
__________________
go really fast and turn left....
Robert.Hull is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
whats the difference? evojuggalo Rookie Zone 12 06-22-2008 11:46 AM
whats the difference Rasmus TbEvo IV Electric On-Road 2 12-18-2005 01:51 PM
whats the difference between the.. epicbloodline Monster Trucks 0 08-20-2005 11:09 AM
AM and FM - Whats the difference? Team Duratrax Electric On-Road 7 07-11-2005 03:32 AM
whats the difference between the ....... buggyman81 Electric Off-Road 2 04-10-2003 02:17 AM



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

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 02:11 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net