EMcBride said:When I submitted our first set of rules, NHRA tech had a list of things that were HIGHLY recommended for our rulebook and Propolene Oxide was on that list. Not sure how it would work in a diesel engine, but like DF said, I've heard it's nice in the SI engines.
Eric you only stance on Propylene oxides should be that it is forbidden
“PROP” as its called in the gas world is basically an oxygen carrier, and dose just that brings extra oxygen to the combustion process. The problem is it is rated as a cacogenic, and is in the same category in the NFPA guide books as some bad crap.
http://www.scorecard.org/chemical-profiles/summary.tcl?edf_substance_id=75-56-9#hazards
This would be great in an over fueled situation, if you still had time to react it with the excess fuel, and make power. Most diesels over fueling are not from lack of oxygen, but lack of time to burn the excess fuel. Late injection cycle fueling contributes to this and dose not add a great deal of usable cylinder pressure, but creates the smoke and high EGT’s.
There is a reason for NHRA banning this from racing, including Top fuel, its bad stuff, the gains are so small any way for what most of diesel guys are doing its not worth the risk. Any one caught running at a NHRA track is risking not only the health risk but the wrath of NHRA on this chemical. Doesn’t mater what organization you are running under, the track is still NHRA.
Understand when all this fuel cooking was going on in side NHRA it was not for big HP gains , but very small percentage gains that were worth only 1 to 3% on a 1300 hp Pro Stock motor that is 15 to 30 hp and this on the track was the difference in qualifying first and going home UNK . NHRA now has a vigilant program in place in all performance orientated classes, that prescreens all fuel after the run, with a Dielectric meter, and then all samples are subjected to a random spectrograph analyses. You get caught and its bad news. As in a one year vacation from racing, a fine, and you name on the 3rd page of the National Dragster as a cheater.
There is so much more room in fuel development then these oxygenated compounds,. Like BTU’s per pound of fuel, and Cetane enhancers, higher Cetane helps you burn more of the excess fuel and make the power you want.
Talked to NHRA today , Propylene oxide is a part of the safety regulations , so it is also banned in any ASO meaning the DHRA also , there is no wiggle room,
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