Leaded 110 Octane

All things K & Sportster

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.
[url="http://victorylibrary.com/BTHP.htm"]H-D Flathead Breather Timing for High Performance[/url]
User avatar
panic
 
Posts: 26
Joined: Mon Jul 29, 2019 5:33 pm

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.
"I know only too well the evil that I propose, but my inclinations get the better of me."
User avatar
Ferrous_Head
 
Posts: 214
Joined: Tue Jun 06, 2017 5:36 pm
Location: Australia

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
User avatar
EKHKHK56
 
Posts: 942
Joined: Fri Apr 18, 2014 5:20 am
Location: Fairbanks, Alaska USA

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.
[url="http://victorylibrary.com/BTHP.htm"]H-D Flathead Breather Timing for High Performance[/url]
User avatar
panic
 
Posts: 26
Joined: Mon Jul 29, 2019 5:33 pm

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?
jOe
 
Posts: 220
Joined: Sat Nov 29, 2014 3:46 pm
Location: The Green Felt Jungle

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.
spacecoast
 
Posts: 35
Joined: Tue Jun 06, 2017 11:28 am

Re: Leaded 110 Octane

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

Effect would be holed pistons!!
55panman
 
Posts: 146
Joined: Wed Oct 28, 2015 4:16 pm

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.
[url="http://victorylibrary.com/BTHP.htm"]H-D Flathead Breather Timing for High Performance[/url]
User avatar
panic
 
Posts: 26
Joined: Mon Jul 29, 2019 5:33 pm

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.
jOe
 
Posts: 220
Joined: Sat Nov 29, 2014 3:46 pm
Location: The Green Felt Jungle

Re: Leaded 110 Octane

Postby jOe » Tue Aug 06, 2019 2:45 pm

Ok- nitrous works, right? So oxygen mixed with nitrogen—?
jOe
 
Posts: 220
Joined: Sat Nov 29, 2014 3:46 pm
Location: The Green Felt Jungle

PreviousNext

Return to General K / Sportster Discussions

Who is online

Users browsing this forum: No registered users and 3 guests