100 octane
#1
#2
If you have cats, it will kill them.
Unless the compression has been raised to at least 12 to 1 there will not be any power improvement.
Leaded gas will foul the plugs, heads, injectors, valves and guides much quicker.
Octane is not power. It is the resistance to ignition and that is all.
The engine tune, compression, timing and cams would need to be spec'd for benefiting from 100 octane gas.
Not to mention that CARB can fine you $10,000 for using in on their highway's you evil polluter. For that reason I suggest that you not post such business on a public forum. Dumb is what dumb does.
Unless the compression has been raised to at least 12 to 1 there will not be any power improvement.
Leaded gas will foul the plugs, heads, injectors, valves and guides much quicker.
Octane is not power. It is the resistance to ignition and that is all.
The engine tune, compression, timing and cams would need to be spec'd for benefiting from 100 octane gas.
Not to mention that CARB can fine you $10,000 for using in on their highway's you evil polluter. For that reason I suggest that you not post such business on a public forum. Dumb is what dumb does.
Last edited by lh4x4; 12-15-2014 at 07:25 PM.
#5
#6
#7
If so, take it from someone with over 30 years in aviation. Don't run it unless you want to replace some valve seals. I've had more then one bike start to smoke from running 100LL.
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#8
Here in the UK we went to unleaded fuels later than you chaps did in the USA. Engines built for leaded fuels risked valve and seat damage when using unleaded, but not the other way around - it is a subject I researched at the time.
In those good ole leaded days we had access to fuels here with up to 105 octane and I can confirm that even in a moderately tuned engine they worked darned well! Don't need any engine changes to get a performance boost, although a tuned engine would undoubtedly gain even more.
Over here the taxes paid on fuels for road-going vehicles are much higher than for aircraft fuels, so using any on the road will attract attention and some serious trouble, if caught! So while it is unlikely IMHO that using leaded fuel will have any adverse affects in that regard, there are other good reasons for not using the stuff.
In those good ole leaded days we had access to fuels here with up to 105 octane and I can confirm that even in a moderately tuned engine they worked darned well! Don't need any engine changes to get a performance boost, although a tuned engine would undoubtedly gain even more.
Over here the taxes paid on fuels for road-going vehicles are much higher than for aircraft fuels, so using any on the road will attract attention and some serious trouble, if caught! So while it is unlikely IMHO that using leaded fuel will have any adverse affects in that regard, there are other good reasons for not using the stuff.
#9
If you have cats, it will kill them.
Unless the compression has been raised to at least 12 to 1 there will not be any power improvement.
Leaded gas will foul the plugs, heads, injectors, valves and guides much quicker.
Octane is not power. It is the resistance to ignition and that is all.
The engine tune, compression, timing and cams would need to be spec'd for benefiting from 100 octane gas.
Not to mention that CARB can fine you $10,000 for using in on their highway's you evil polluter. For that reason I suggest that you not post such business on a public forum. Dumb is what dumb does.
Unless the compression has been raised to at least 12 to 1 there will not be any power improvement.
Leaded gas will foul the plugs, heads, injectors, valves and guides much quicker.
Octane is not power. It is the resistance to ignition and that is all.
The engine tune, compression, timing and cams would need to be spec'd for benefiting from 100 octane gas.
Not to mention that CARB can fine you $10,000 for using in on their highway's you evil polluter. For that reason I suggest that you not post such business on a public forum. Dumb is what dumb does.
#10