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New Gas !

Old Jun 4, 2004 | 01:19 PM
  #21  
mazdaspeed7's Avatar
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Originally Posted by Midnightdriver' date='Jun 4 2004, 12:01 PM
Using leaded ACFT fuel is a bad idea, you can do it but its a bad idea...the stuff is 120+preformance gas (purple in color) your car can not burn it all and you will make less power. Jet A in just diesel (kerosene with additives, well both have additives thats what seperates diesel from jet fuel. specific gravity is very close on both)

Running leaded fuel 100oct. is ok BUT, only once in a while (2 times a month at track, and not all leaded fuel) if you continue to use leaded fuel and you will have to change your fuel filter change cats (if you have them) clean out combustion area of engine (lead deposits) if used long enough you will need to change you fuel lines and flush your fuel tank.

Like I said before...the ACFT fuel is used for high compression acft engines many of which are also turbo or supercharged making much more power than cars. I could get AVGAS very easly but that stuff is best left for ACFT.

unless your doing 9's and lower you really don't need anything more than 100oct. fuel. (which is the highest octaine rating) If any are wondering why I might know this its becaues my job for the army is POL/fuel section.
Theres a broad range of leaded aircraft fuel. The purple warbird juice your talking about is hard to find. 100LL and 110LL are much more common. And general aviation aircraft dont run it for crazy high compression ratios and boost. The vast majority of general aviation piston engines have a CR around 7-8:1.
Old Jun 4, 2004 | 06:28 PM
  #22  
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very true mazdaspeed...but still the overall point is leaded fuel is not a good idea.
Old Jun 4, 2004 | 07:34 PM
  #23  
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I guess me and Turbo Mark need to use it less. We get the General av gas for Cessna and Comanche plane. What's that a high compression 350?

it would be useful if we new how much of that to put with the 94 octane per gal.

for track use rather than a full tank.
Old Jun 5, 2004 | 11:28 AM
  #24  
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Originally Posted by l8t apex' date='Jun 4 2004, 08:34 PM
I guess me and Turbo Mark need to use it less. We get the General av gas for Cessna and Comanche plane. What's that a high compression 350?

it would be useful if we new how much of that to put with the 94 octane per gal.

for track use rather than a full tank.
Its got either a lycoming or a continental, and the compression ratio is quite low compared to what we see in cars. 7-8:1 is the norm.
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