bigbadbowtie
Posts: 674
Joined: 8/21/2002
From: Huntsville,
AL, USA
Status: offline
|
quote:
ORIGINAL: downunder
quote:
ORIGINAL: bigbadbowtie
You could add oil to it and be ok but then your nitro % is going to drop down.
Actually it won't because the ratio of nitro to methanol stays the same and that's what we tune the needle valve for. As an example, if you had a fuel with 10% oil and 45% nitro then you'd also have 45% methanol so there'd be equal parts nitro/methanol. Add oil to 20% and then the mix would have 40% nitro but also 40% methanol or still equal parts. You'd just have to open the needle a little more to get the same volume of nitro/methanol flowing through.
The tricky part (and what confuses everyone) is that the first fuel would be labelled as 45% nitro and the second as 40%.
according to the link I posted.... It will drop. Not much but it will drop. Here is what is says.....
NitroRC.com Custom Fuel Blend Recipe:
According to the figures you just gave us, your current fuel has, 10% nitro content and 10% oil content, leaving 80% methanol.
You have indicated that you wish to increase your oil content by 7% to a new total of 17%
In order to accomplish this you will simply need to add 10.5 ounces of castor/synthetic oil to your 128 ounces of fuel.
When you're done, you should end up with 138.5 ounces (1.08 gallons) of newly blended, custom fuel.
Custom Blend Results
Starting Nitro: 10% - - - - - - - -
Ending Nitro: 9.2%
Starting Oil: 10% Add oz Oil: 10.5 Ending Oil: 17%
Starting Mthnl:
80% - - - - - - - -
Ending Mthnl: 73.8%
_____________________________
Ray in Bama
|
Printable Version
All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> RC Fuels >> car fuel in planes?? 
car fuel in planes?? - 
