I run Pure Purple , for the lubrication quality , I don't really believe its is much of a power enhancer , I dynoed back to back on Snow White and it was worth a whopping 10 hp across the board . there are quit a few things you could do to make power , with diesel fuel , but there are a lot of changes you must make to a common tune up to take advantage of them.
1. water / methanol the methanol greatly speeds up flame front propagation . This in effect reduces the timing requirement for a given engine speed , and load. This is the reason adding a little methanol will clean up fuel that is the by product of big pumps , or long injections duration. This fuel come in to the process late in the cycle, and doesn’t really add any appreciable amount of usable cylinder pressure , but is the primary cause of the thick black sootie smoke. This added fuel contributes to high Egt’s because of it burning on exiting the exhaust valve , and the added oxygen coming across the chamber on valve over lap. This added fuel also absorbs the heat when it is carburized , and not participating in the combustion process , making a heavy fueled motor not want to accelerate.
2. Amyl Nitrate , in small, and I mean small amounts in diesel fuel will produce big power gains , but this is very tricky . and is a added ingredient in a common know land speed record truck . 2 % will yield 5 to 7 % power. You have to reduce compression a great deal to take advantage of this additive , and it doesn’t like a mechanical pump . the timing requirements of this , and the reduction in compression to use it require an on the fly adjustable electronic timing to take full advantage of it properties.
3. Nitro propane in fuel is also a fuel that is virtually undetectable and has many unique tuning requirements. None of them something a beginner needs to play with
4 . JP8 is nothing more then a safer JET A or JP5 this fuel was made to be less flammable on aircraft carrier , and has a higher vapor pressure , and flash point . I have been told that JP* has more BTU of energy then JP8 or JET A and if so would make more power , if tuned correctly . on the other hand if the fuel produces a slower flame front , it would require more timing to achieve the same cylinder peak spike need to produce optimal power. .
5 BIO DIESEL has 12 % more BTU then # 2 and should be the best bet for racing or pulling , this fuel has a very low sulfur content , and is hard on race pumps with out the proper lubrication package . this fuel is the future of Americas energy needs , being total renewable , and less of a pollutant .
In conclusion there power gains with all of these power producing agents are less the 10 % , and on the street level not worth the trouble, but are viable solutions to a all out race motors , these additives are easily detectable in fuel buy using a dielectric meter , and my spectrograph the suspected fuel. NHRA dose this to every car in the performance categories every lap . from pro stock down to stock I have not experimented with these additives , yet , because the power level needed is easy to achieve , the trick is latching it to the track
Attention: TDR Forum Junkies 
