High octane (100+) question.
Rotary Enthusiast
Joined: Sep 2001
Posts: 1,417
Likes: 0
From: Pittsburgh Pa
Originally posted by Evil Aviator
OK, I see. You are worried about blowing up your expensive engine so you want to tune it with a more anti-detonant fuel to be safe. This isn't going to work. Like eViLRotor posted, you need to tune your engine with the actual fuel that you plan to use. If you can use the same brand, then this will be even better.
OK, I see. You are worried about blowing up your expensive engine so you want to tune it with a more anti-detonant fuel to be safe. This isn't going to work. Like eViLRotor posted, you need to tune your engine with the actual fuel that you plan to use. If you can use the same brand, then this will be even better.
i think this answers your question perfictly
Haven't we ALL heard this
Joined: Mar 2001
Posts: 3,948
Likes: 1
From: Indiana
Check out this webpage....
It says that as long as you are using petrol it will be one Voltage Out. Regardless of the octane. So, that is saying it will not affect it.
http://www.techedge.com.au/vehicle/wbo2/wblambda.htm
James
It says that as long as you are using petrol it will be one Voltage Out. Regardless of the octane. So, that is saying it will not affect it.
http://www.techedge.com.au/vehicle/wbo2/wblambda.htm
James
Junior Member
Joined: Jan 2003
Posts: 10
Likes: 0
From: salt bag city
Everything I know about fuel and octane is specfic to pistion motors so I don't know what it means for a rotary. But I am sure most of what I know applies.
The reason that higher octane protects against detonation is because it burns COLDER ( slower as well, as has been mentioned already ) and takes higher temps and compression before it pre-ignites. So here is where the myth that higher octane makes more power comes from. With a higher octane a more advanced ignition timing can be used allowing a higher combustion chamber pressure.
So no, higher octane gas will not change your AFR.
Higher octane gas allows for higher combustion chamber pressures wich will allow more of the POTENTIAL energy in the fuel to be released during the event of ignition wich means more power in a motor configured to take advantage of the colder burning fuel.
Lower octane gas burns faster, hotter, and ignites at lower temps and compression.
The reason that higher octane protects against detonation is because it burns COLDER ( slower as well, as has been mentioned already ) and takes higher temps and compression before it pre-ignites. So here is where the myth that higher octane makes more power comes from. With a higher octane a more advanced ignition timing can be used allowing a higher combustion chamber pressure.
So no, higher octane gas will not change your AFR.
Higher octane gas allows for higher combustion chamber pressures wich will allow more of the POTENTIAL energy in the fuel to be released during the event of ignition wich means more power in a motor configured to take advantage of the colder burning fuel.
Lower octane gas burns faster, hotter, and ignites at lower temps and compression.
Last edited by Voltron; Mar 22, 2003 at 01:34 PM.
Rotorhead
Joined: Feb 2001
Posts: 9,136
Likes: 39
From: Charlottesville, Virginia, USA
Originally posted by Wankel7
Check out this webpage....
It says that as long as you are using petrol it will be one Voltage Out. Regardless of the octane. So, that is saying it will not affect it
Check out this webpage....
It says that as long as you are using petrol it will be one Voltage Out. Regardless of the octane. So, that is saying it will not affect it
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