Leaded 110 Octane

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Re: Leaded 110 Octane

Postby panic » Tue Jul 30, 2019 8:03 pm

Anti-knock additives contain no energy, and subtract from the BTU-per-cc energy content of gasoline.
Regular gas produces more power than anything else, it just needs some mods to accept the conditions that some engines impose on the combustion event.
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Re: Leaded 110 Octane

Postby Ferrous_Head » Tue Jul 30, 2019 11:53 pm

The higher the octane the cleaner the burn.


Marketing claptrap. Adding what are in essence impurities into the combustion process isn't going to make the burn cleaner.

But I do know that using Exxon Premium will make you taller and better looking. I've seen it on TV.
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Re: Leaded 110 Octane

Postby EKHKHK56 » Wed Jul 31, 2019 3:00 am

Av Gas needs oil added for running in race cars on the ground. Very dry fuel as well as designed to mix 14.7 to 1 at 10,000 feet. I used in circle track Trans Ams when running high compression, 200 lb/sq in 420 inch Small Block Chevys. One quart of M Mystery oil per 55 gal drum worked. Also ran alcohol jets 8n the 870 Double Pumper with 2 50cc shooters. #HurricaneHolley 94, 95 96 Alaska Champ. Any less octane and it's back the timing severely or blow the crowns off. Erik K
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Re: Leaded 110 Octane

Postby panic » Wed Jul 31, 2019 9:57 am

14.7 is a scientific curiosity, and not necessarily a useful (or achievable) goal or target. Too lean for any power in an air-cooled engine, too rich for good mileage.
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Re: Leaded 110 Octane

Postby jOe » Tue Aug 06, 2019 1:13 pm

For another jaunt into the theoretical—what would the effect be of a tube of pure oxygen fed through a hose into the carb?
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Re: Leaded 110 Octane

Postby spacecoast » Tue Aug 06, 2019 1:35 pm

I think adding oxygen would just give more heat which is all ready an evil that has to be tamed.
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Re: Leaded 110 Octane

Postby 55panman » Tue Aug 06, 2019 1:37 pm

Effect would be holed pistons!!
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Re: Leaded 110 Octane

Postby panic » Tue Aug 06, 2019 2:20 pm

If enough fuel could be added as well, the effect would be a huge power increase, but without nitrogen to buffer the combustion probably broken parts would result.
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Re: Leaded 110 Octane

Postby jOe » Tue Aug 06, 2019 2:32 pm

I was thinking more along the lines of oxygen bursts of less than a mile or two.
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Re: Leaded 110 Octane

Postby jOe » Tue Aug 06, 2019 2:45 pm

Ok- nitrous works, right? So oxygen mixed with nitrogen—?
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