4 oz of nitro in a gallon of gasoline will fail Digatrons DT64 fuel tester on Dc1 and Dc2 when +/- 25 counts are allowed on DC1 and +/- 3 counts are allowed on DC2...as a side note on tests I seen run there were no hp gain seen without changing timing and jet size.
one that i've heard of is adding pro-blend to the fuel, this is an oxygenation blend....but you can tell when someone puts it in, because the tank and carb will sweat...it makes the temp of the fuel drop. bad thing is, you have to watch those that are using oxygen enriching additives. they will usually last so long as the tank is capped, but when you take the fuel cap off and "swish" the fuel, then the enhancers are released into the air....making it even harder to detect.
i still say that as a race promoter, call the drivers together and lay the law down. explain that your randomly going to check fuels and if caught, they are history. don't have to say much more....i've done it. yes, your going to get yelled, cussed and generally not liked for a while, but you are the same one that is going to get yelled, screamed, hollered and cussed at if you don't and someone sees a crew using additives. sometimes the mere threat is enough....and don't give in and tell them what method your going to use...leave it at "I'm going to start randomly checking fuel and if you are using anything you will be ----- (put your favorite punishment here)." and i'd do it too!! tell them how your going to check is tantamount to giving away christmas present secrets! i've witnessed other tech men telling the racers exactly what they are going to check....and all of a sudden karts that were running away from the field aren't.....as a race promoter, you don't have to tell a racer anything, just tell them your going to do it and leave it at that....too many racers (not pointing the finger at anyone in particular) think that they are above the rules and that the techman or promoter has to answer to them. if they don't like it, so what? i can jsut about garantee that those racers who have been labeled as back markers or worse will thank you for putting your foot down and helping to keep things open and honest!
IMHO, the only surefire way to test any fuel is with a hydrometer, because the basic result of any fuel enhancement is an increase of the Specific Gravity, the higher the S.G., the more potent the fuel.
Very, very few karters are in a position to understand how to use "hot fuel."talking with a lot of guys around here, it's not happening as much because a lot of tracks have gone to the pump around for any big races and pull the fuel tester out if they suspect anything...pump around is probably the best thing....that way if you monkey with your fuel, then go thru the pump around, then every one shares your fuel!
Interesting......also post please, the back to back tests you ran, with and without the stuff, and the amount of lap time improvement....when using the "power mist."Same problem as tester NOT surefire the power mist stuff we've added it hydrometer tested it passes, plus passes water test.
If it doesn't pass the smell test, throw the DQ.Simple water test will not show Nitro as long as they do not go over 4oz per gal, I see below you say 2 different water test I would like to discuss that, what I'm calling simple water test with distilled water it will not show up, now drop a few drops of Bleach in and ya if it's nitro it will turn Orange instantly, that's why I say sure thing on nitro, the Powermist additive that has the extremely strong smell does not show up either, nor any other test we've tried.
As you state Simple water test will catch ALMOST everything, again there's the problem.
I bet I know where ya got that from.... haha
If I am not mistaken from what I gather from the person or persons you heard this from this mixture will burn in space.... Crazy stuff
Interesting......also post please, the back to back tests you ran, with and without the stuff, and the amount of lap time improvement....when using the "power mist."
If it doesn't pass the smell test, throw the DQ.
The nose/smell test is as valid as any other. As always, have a couple of other approved tech guys, agree with the smell test.
Description:
Klotz NITRO is an oxygenating power additive developed for gasoline, E85 and methanol alcohol fuels. NITRO is designed to extract maximum horsepower from stock and modified engines. Contains 50% Nitropropane and 50% Koolinal as blending and cooling agents. Koolinal also resists detonation and pre-ignition. Dyno tests indicate substantial power increases may be obtained when using Klotz NITRO. Klotz NITRO will challenge and outrun the competition in the following ways:
•Nitro provides up to 7% increase in horsepower
•Improves throttle response and acceleration
•Increases torque and horsepower
•Blends with gasoline, E85 and methanol alcohol fuels
•Designed for stock and modified engines
•Oxygen bearing agent
Application:
For use in all 2/4-stroke gasoline, E85, and methanol alcohol engines. May not be a legal power additive in sanctioned racing events.
Characteristics:
Product Color: Bluish/Green
Instructions:
Compatibility: All gasoline, E85, methanol alcohol, synthetic lubricants and petroleum oils. Take several spark plug readings to verify jet settings and correct heat range spark plug. A colder heat range spark plug is recommended.
4-Stroke Engines: Use 4 oz. NITRO per gallon; increase jets by 4 sizes. For high compression engines retard timing 2 degrees.
2-Stroke Engines: Use 2 oz. NITRO per gallon up to a maximum of 4 oz. per gallon. Increase jets by 4 to 6 sizes.: Heat is a limiting factor excess heat will cause engine damage. Reduce the percentage of NITRO to lower engine temperature and prevent engine damage. Every application is different additional tuning may be required to achieve maximum power.
I would bet his carb was rich and loaded up on the start and then cleaned out and started making power. What wins races is #1 tires,#2 gear selection and clutch rpm, #3 kart setup. I have cheated big time and got beat by a great set of tires!!!!!!Watched a race this past year and one individual in particular was slow going at the beginning of the race and lagged way behind. All of a sudden, his kart came to life and reeled in some very fast karts. He didn't finish because he wrecked himself and another competitor. I assume he was using something in his fuel. Seemed like it took awhile but then took off. What could he have used??