Nitro fuel qualities
12-30-2010 | 04:26 PM
#16
Hey Dave
when you have the fuel tested its important that it has a dye in it to test with . What you may find a problem is that in Australia under Govt regulation there is a chemical added to all methanol which is a reactant to heat and sun light exposiure which is a safety indicator. When you get safe methanol from a fresh batch it is a very slightly blue colour. this is the indicator. If you pour a fresh batch of methanol and its not blue then it may have been exposed to heat prior to you receving it. When its fresh it has more chance of reacting to dyes in fuel and can fade in colour when exposed.
The Indicator has a PH of about 7 or 8 . Now depending on the dye used in the RC Fuel it may also detriorate the colour dye of the fuel added when not stored correctly. Typically it can fade in sunlight or if it goes from extreme cold to heat .. like if you store it in a fridge then take it to the track and leave it in 40 deg sun light. These extremes can fade the colour of fuel. typically the colouring is less than .03 % of the make up of a fuel . Mind you the fuel can fade while being transported. Even if its in a van or car in the back or in the boot of a car. this can kick off the process.
Wether a fuel has a dye in it or not makes absolutely no difference to its performance except in top end. Some Dyno runs with fuels with no dye have returned between 300 to 500 more rpm in the top end. This is typically good for Drag Racing or Boat / Plane applications.
There are plenty of fuel dyes avail for fuel, . The more you use the more chance you have of leaving discolouration inside the engine.. some people dont like it happening but its not always the dyes fault. Gulf Western make an awesome colour dye for this application. It is PH balanced and alkaline in make up. yes alkaline can react in nitromethane but only in lage or equal ratios .. when used in small quantities makes no diff.
Hope this helps with your testing
Cheers Sandy
www.massivemods.com
when you have the fuel tested its important that it has a dye in it to test with . What you may find a problem is that in Australia under Govt regulation there is a chemical added to all methanol which is a reactant to heat and sun light exposiure which is a safety indicator. When you get safe methanol from a fresh batch it is a very slightly blue colour. this is the indicator. If you pour a fresh batch of methanol and its not blue then it may have been exposed to heat prior to you receving it. When its fresh it has more chance of reacting to dyes in fuel and can fade in colour when exposed.
The Indicator has a PH of about 7 or 8 . Now depending on the dye used in the RC Fuel it may also detriorate the colour dye of the fuel added when not stored correctly. Typically it can fade in sunlight or if it goes from extreme cold to heat .. like if you store it in a fridge then take it to the track and leave it in 40 deg sun light. These extremes can fade the colour of fuel. typically the colouring is less than .03 % of the make up of a fuel . Mind you the fuel can fade while being transported. Even if its in a van or car in the back or in the boot of a car. this can kick off the process.
Wether a fuel has a dye in it or not makes absolutely no difference to its performance except in top end. Some Dyno runs with fuels with no dye have returned between 300 to 500 more rpm in the top end. This is typically good for Drag Racing or Boat / Plane applications.
There are plenty of fuel dyes avail for fuel, . The more you use the more chance you have of leaving discolouration inside the engine.. some people dont like it happening but its not always the dyes fault. Gulf Western make an awesome colour dye for this application. It is PH balanced and alkaline in make up. yes alkaline can react in nitromethane but only in lage or equal ratios .. when used in small quantities makes no diff.
Hope this helps with your testing
Cheers Sandy
www.massivemods.com
The issue I have is that some fuel I purchased simply does not work as it should, can not get a reliable tune (lacking power and constant flame outs), the fuel as delivered to me was the same color it currently is, so there fore if there was a problem with the fuel caused by temperature changes it has occured before I recieved it.
There will be a pending court case regarding the fuel, the easiest case to prove (before fuel sent off to be tested) is the fact it is a different color to what is advertised on the sellers website.
But once it is tested and I have paid for the testing (so I am the owner of the report) I can publish the findings, and a copy of findings will be sent to Department of fair trading, where I guess they will ask the seller for a chemical break down of what the fuel "should" consist off.
But so far the seller has denied all liabilty and to be honest has been more than a little pig headed (a trate I know I suffer with at times)
When I first used the fuel and found it could not hold a tune (I tried swapping out plugs etc - only way running problems stopped was to use fuel from a different drum) I contacted seller straight away (there was a delay as seller was at worlds) and was only initially wanting to make him aware of a problem, but his attitude burred me up and we are now in the situation where the seller has publicly accused me of lieing and many other things, yet seller has managed to prove nothing even though I have asked for proof to be made public.
The seller is a member of this forum and from what I know does frequent this site (account is still active with visits often) And I emailed seller last week informing of actions to be taken, sadly with Christmas/New years break I can not send fuel out to be tested till start of week 2 2011, So the seller in reality has until then to bring this all to a stop.
12-31-2010 | 05:53 PM
#19
The fuel was purchased direct from fuel supplier/maker (not through hobby shop)
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