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race gas?
#1
Posted 22 May 2006 - 01:55 AM
#2
Posted 22 May 2006 - 05:13 AM
these older engines were not made to run such a fuel and as such it might just cause some damage in the long run.
plus its too expensive
#3
Posted 22 May 2006 - 07:14 AM
So no - don't run it in a soob engine - unless you built it with 10:1 compression just for racing. Your mileage would decrease, and your power would decrease with 100+ octane in a normal engine.
GD
#4
Posted 22 May 2006 - 08:58 AM
...So no - don't run it in a soob engine - unless you built it with 10:1 compression just for racing. Your mileage would decrease, and your power would decrease with 100+ octane in a normal engine.
GD
I Agree Completely... Don`t use it.
#5
Posted 22 May 2006 - 01:19 PM
Octane is a rateing of the resistance of a fuel to spontaneous detonation - nothing more. 100+ octane on it's own means little other than it can be compressed much more before detonation will occur. With higher octane comes a lowering of BTU's per gallon - the measure of potential energy the fuel contains. For best performance and econemy you should always run the LOWEST octane your engine will stand without detonation. "Race" gas probably contains some very corrosive octane boosting agents that would not contribute to the longevity of your engine. Racing engines are just that - for racing. They are not designed for long life or reliability over a time period. They are designed usually to run at high RPM for sometimes as little as 1 or 2 races before being replaced or rebuilt. This allows the use of corrosive octane boosting agents, as well as the use of oxidizing fuels like NOS.
So no - don't run it in a soob engine - unless you built it with 10:1 compression just for racing. Your mileage would decrease, and your power would decrease with 100+ octane in a normal engine.
GD
so then why is Japans lowest octane rating as good as our premium rating and they still run it in these motors for the most part? Their premium is like 120 octane or so. My friend who used to live there, just went back and visited a couple weeks ago and he was telling me about it. Also, their fuel is pink, instead of a brownish tan crap color like ours is. Now I know when I move back to Washington, I'm going to have to run premium and then some maybe in my RX...
#6
Posted 22 May 2006 - 01:36 PM

#7
Posted 22 May 2006 - 02:08 PM
so then why is Japans lowest octane rating as good as our premium rating and they still run it in these motors for the most part? Their premium is like 120 octane or so. My friend who used to live there, just went back and visited a couple weeks ago and he was telling me about it. Also, their fuel is pink, instead of a brownish tan crap color like ours is. Now I know when I move back to Washington, I'm going to have to run premium and then some maybe in my RX...
There's probably a crapload of ethanol in it too....
And you are forgetting that in the US octane is calculated differently than the rest of the world.
GD
#8
Posted 22 May 2006 - 03:48 PM
This is my own personal experience after installing CNG on about 50 vehicles about 15 years ago.
#9
Posted 22 May 2006 - 04:31 PM
Edit: The noise my exhaust makes is now any thing below 2k rpms instead of up around 4k rpms... may or may not be related to the gasoline. More likely related to my driving habits.
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