Toluene/xylene injection............
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Toluene/xylene injection............
Just wondering if anyone has tried (methyl benzene aka toulene) or (dimethyl benzene aka xylene) injection? Since these 2 hydrocarbons have octane number higher than alcohols and heat of combustion similar to gasoline.
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Originally Posted by SlowCar
Just wondering if anyone has tried (methyl benzene aka toulene) or (dimethyl benzene aka xylene) injection? Since these 2 hydrocarbons have octane number higher than alcohols and heat of combustion similar to gasoline.
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I am thinking it should work well when injected instead of having to add it in the fuel tank and burning it full time.
I am also not interested in the cooling of the intake charge since i am only interested in what happens in the combustion chamber.
I am also not interested in the cooling of the intake charge since i am only interested in what happens in the combustion chamber.
#6
The problem with toluene is that it really eats things up. It'd need special injectors and lines to work. A system easier to build, but more expensive and complex to control would be to have 4 seconday injectors running off their own tank of real high octane race gas - programmed only to come on at high load.
Does anyone have sources for parts that will hold up to toluene, or know someone that has successfully run such a system long term? A friend of mine had this very same toluene injection idea about 10 months ago.
Does anyone have sources for parts that will hold up to toluene, or know someone that has successfully run such a system long term? A friend of mine had this very same toluene injection idea about 10 months ago.
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FYI, here are the RON, MON, Boiling Point, and Flash point for the various forms of Xylene and Toluene:
toluene: 124 : 112 : 111*C : 480*C
meta-xylene: 162 : 124 : 138*C : 463*C
para-xylene: 155 : 126 : 138*C : 530*C
ortho-xylene: 126 : 102 : 144*C : 530*C
And, for fun, the same for Ethanol and Methanol:
ethanol: 129 : 102 : 78*C : 365*C
methanol: 133 : 105 : 65*C : 385*C
-Adrian
toluene: 124 : 112 : 111*C : 480*C
meta-xylene: 162 : 124 : 138*C : 463*C
para-xylene: 155 : 126 : 138*C : 530*C
ortho-xylene: 126 : 102 : 144*C : 530*C
And, for fun, the same for Ethanol and Methanol:
ethanol: 129 : 102 : 78*C : 365*C
methanol: 133 : 105 : 65*C : 385*C
-Adrian
Last edited by SaabTuner; Aug 15, 2005 at 04:17 AM.
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Originally Posted by Shaun@SG
The problem with toluene is that it really eats things up. It'd need special injectors and lines to work. A system easier to build, but more expensive and complex to control would be to have 4 seconday injectors running off their own tank of real high octane race gas - programmed only to come on at high load.
Does anyone have sources for parts that will hold up to toluene, or know someone that has successfully run such a system long term? A friend of mine had this very same toluene injection idea about 10 months ago.
Does anyone have sources for parts that will hold up to toluene, or know someone that has successfully run such a system long term? A friend of mine had this very same toluene injection idea about 10 months ago.
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uhm... you wouldn't wanna inject it... cuz it would not make any improvement over running it in the fuel tank... the reason why alcohol is injected is because you'd have to seriously retune yer car to run it straight right? and the fact that running it straight would give you less hp without such a drastic retune (it has a lower yield). and when injected it gives you a cooler cylinder... same with methane or propane yeah?
Last edited by trinydex; Aug 16, 2005 at 03:25 AM.
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Originally Posted by trinydex
uhm... you wouldn't wanna inject it... cuz it would not make any improvement over running it in the fuel tank... the reason why alcohol is injected is because you'd have to seriously retune yer car to run it straight right? and the fact that running it straight would give you less hp without such a drastic retune (it has a lower yield). and when injected it gives you a cooler cylinder... same with methane or propane yeah?
It's just very expensive to impliment.
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Originally Posted by SaabTuner
Sure it would have a use. Then you could run "cheap" low octane gas when you're cruising. When you get on the throttle, you change it so that it's half Toluene/Xylene, then you have race fuel.
It's just very expensive to impliment.
It's just very expensive to impliment.
l8r)
#14
Originally Posted by Monkey
Exposure to Xylene and Toluene cause Leukemia. Not something I would want to continually mess with
The thing to remember is the dose makes the poison. Don't go swimming in the stuff.
#15
Originally Posted by Ludikraut
I thought that above 30% toluene content, it starts to have detrimental effects at higher rpms because toluene burns slower...
l8r)
l8r)
In small ratios all these little things work but I would be very hesistant to run larger ratios and longer term - without going into really detailed study.