AV gas. Anyone running it in their boat?
01-10-2021, 12:13 AM
#31
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I know Av gas is made differently then auto gas (formulated for longer shelf life ~ airplanes do sit for extended periods ~ and have to withstand higher altitudes & extreme temperatures) something auto gas
is not taken into account for....it's specific gravity is much less than that of auto gas....for it's volume there is less mass, less dense ~ a quicker burn (more lean) for a given injector pulse & would damage valves
& melt pistons ....definitely a longer pulse width for more complete burn....my Arizona speed & marine efi's are of a mid 90's would the ecm need to be tuned?....
is not taken into account for....it's specific gravity is much less than that of auto gas....for it's volume there is less mass, less dense ~ a quicker burn (more lean) for a given injector pulse & would damage valves
& melt pistons ....definitely a longer pulse width for more complete burn....my Arizona speed & marine efi's are of a mid 90's would the ecm need to be tuned?....
01-12-2021, 06:57 AM
#32
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I know Av gas is made differently then auto gas (formulated for longer shelf life ~ airplanes do sit for extended periods ~ and have to withstand higher altitudes & extreme temperatures) something auto gas
is not taken into account for....it's specific gravity is much less than that of auto gas....for it's volume there is less mass, less dense ~ a quicker burn (more lean) for a given injector pulse & would damage valves
& melt pistons ....definitely a longer pulse width for more complete burn....my Arizona speed & marine efi's are of a mid 90's would the ecm need to be tuned?....
is not taken into account for....it's specific gravity is much less than that of auto gas....for it's volume there is less mass, less dense ~ a quicker burn (more lean) for a given injector pulse & would damage valves
& melt pistons ....definitely a longer pulse width for more complete burn....my Arizona speed & marine efi's are of a mid 90's would the ecm need to be tuned?....
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scippy (01-12-2021)
01-12-2021, 07:33 AM
#33
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I personally would get the ecu retuned.
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scippy (01-12-2021)
01-12-2021, 11:50 AM
#34
01-13-2021, 10:50 PM
#35
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If your reason for using it is longevity ( mine is layed for 9+ months and is just fine so I don`t get the reasoning but okay ) wouldn`t it just be safer and easier to suck the gas out and put in fresh when you`re ready to go? You`re going to change your entire tune to used AV gas only available at airports? makes ZERO sense.
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Drock78 (01-14-2021)
01-14-2021, 02:12 PM
#36
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OK... so this is a 12 year old thread. I used AvGas in my Top Gun with N/A 800's from '08 until I sold it in '13 with no issues. We couldn't get non-ethanol fuel in MD and it was a great alternative! I also used it in my lawn mower, John Deere Gator, weed whacker and my wife's Honda Ruckus. Great smell, never went bad and never had to rebuild any carburetors!
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OPS VZLA (01-14-2021)
01-14-2021, 03:09 PM
#37
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OK... so this is a 12 year old thread. I used AvGas in my Top Gun with N/A 800's from '08 until I sold it in '13 with no issues. We couldn't get non-ethanol fuel in MD and it was a great alternative! I also used it in my lawn mower, John Deere Gator, weed whacker and my wife's Honda Ruckus. Great smell, never went bad and never had to rebuild any carburetors!
01-14-2021, 11:28 PM
#38
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OK... so this is a 12 year old thread. I used AvGas in my Top Gun with N/A 800's from '08 until I sold it in '13 with no issues. We couldn't get non-ethanol fuel in MD and it was a great alternative! I also used it in my lawn mower, John Deere Gator, weed whacker and my wife's Honda Ruckus. Great smell, never went bad and never had to rebuild any carburetors!
01-14-2021, 11:38 PM
#39
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If your reason for using it is longevity ( mine is layed for 9+ months and is just fine so I don`t get the reasoning but okay ) wouldn`t it just be safer and easier to suck the gas out and put in fresh when you`re ready to go? You`re going to change your entire tune to used AV gas only available at airports? makes ZERO sense.
